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they_o both_o reckon_v the_o original_n of_o the_o second_o proper_a integument_n of_o the_o spinal_a marrow_n which_o tulpius_n first_o discover_v 2._o tulp_n cent_n 1_o ob_n 29._o vienssen_n p._n 143._o par_fw-fr 2._o and_o vieussenius_fw-la suppose_n to_o be_v a_o duplicature_n of_o the_o pia_fw-la mater_fw-la in_o that_o part_n only_o now_o that_o there_o be_v a_o middle_a membrane_n in_o some_o part_n of_o the_o brain_n and_o particular_o at_o the_o basis_n of_o the_o cerebellum_fw-la from_o whence_o it_o be_v continue_v down_o to_o the_o spinal_a marrow_n constitute_v the_o second_o proper_a integument_n of_o that_o part_n as_o aforementioned_a i_o have_v long_a since-observed_n but_o whether_o it_o be_v another_o absolute_a distinct_a membrane_n from_o that_o other_o subjacent_a one_o by_o the_o aforesaid_a author_n proper_o name_v the_o pia_fw-la mater_fw-la and_o common_a to_o the_o spinal_a marrow_n with_o the_o brain_n itself_o like_v as_o be_v this_o other_o second_o 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have_v be_v by_o nature_n design_v to_o any_o such_o use_n be_v first_o discover_v mater_fw-la blood-vessel_n
disperse_v through_o 2._o board_n p._n 196._o par_fw-fr 2._o it_o so_o forcible_a as_o to_o create_v a_o sensible_a systole_n and_o diastole_n in_o its_o outward_a cover_n it_o be_v worth_a note_v that_o while_o the_o blood-vessel_n be_v all_o full_a so_o as_o to_o keep_v the_o dura_n mater_n upon_o its_o full_a stretch_n the_o pulsation_n be_v not_o vi_o sible_a at_o all_o or_o at_o least_o very_o faint_o but_o after_o a_o depletion_n of_o the_o vessel_n so_o as_o that_o grow_v somewhat_o more_o lax_n the_o beat_n become_v very_o visible_a equal_o in_o the_o sinus_n and_o membrane_n too_o after_o have_v make_v this_o experiment_n i_o find_v one_o author_n of_o the_o same_o opinion_n and_o that_o be_v falloppius_n who_o in_o vindication_n of_o galen_n against_o vesalius_n his_o contemporary_a say_v all_o i_o have_v say_v upon_o the_o forego_n experiment_n and_o all_o the_o great_a vesalius_n be_v able_a to_o answer_v in_o his_o own_o vindication_n in_o his_o ingenious_a book_n call_v anatomicam_fw-la gabr._fw-la falloppi_n observat_fw-la examen_fw-la fall_v very_o short_a of_o its_o aim_n as_o to_o the_o transverse_a ligament_n which_o be_v in_o some_o place_n r._n place_n fig._n 4._o r._n round_o cordal_n and_o in_o other_o x._o other_o ibid._n x._o broad_a or_o membranous_a in_o the_o longitudinal_n sinus_n chief_o both_o serve_v for_o strength_n and_o in_o concurrence_n with_o the_o cruciform_a ligamentous_a fibre_n take_v notice_n of_o by_o vieussenius_fw-la on_o the_o under_o and_o outside_n of_o this_o sinus_n from_o whence_o the_o fibre_n belong_v to_o the_o falcate_v process_n aforemention_v seem_v to_o have_v their_o original_n elasticity_n to_o this_o part_n for_o its_o more_o vigorous_a reduction_n of_o the_o blood_n pass_v through_o it_o together_o with_o its_o blind_a cavity_n or_o diverticulum_n serve_v to_o moderate_v the_o over-swift_a or_o violent_a motion_n of_o the_o blood_n see_v i_o find_v they_o so_o exact_o describe_v by_o vieussenius_fw-la to_o who_o the_o reader_n may_v have_v recourse_n i_o think_v their_o description_n need_v take_v up_o no_o room_n here_o but_o as_o to_o the_o manner_n of_o the_o vein_n enter_v this_o sinus_n i_o find_v it_o far_o different_a from_o that_o which_o be_v describe_v by_o lower_n first_o etc._n low._n fig._n 4._o h_o h._n vituss_n tab_v 2_o d_o d_o etc._n etc._n and_o afterward_o by_o vieussenius_fw-la both_o who_o make_v they_o enter_v with_o their_o orifice_n from_o behind_o forward_o two_o or_o three_o only_o except_v by_o vieussenius_fw-la and_o that_o for_o some_o other_o useful_a purpose_n than_o what_o have_v hitherto_o be_v take_v notice_n of_o and_o this_o be_v as_o follow_v etc._n fig._n 4._o dd_v etc._n etc._n viz._n about_o one_o half_a of_o they_o though_o intermix_o but_o all_o after_o have_v first_o upon_o their_o arrival_n at_o the_o sinus_n insinuate_v themselves_o for_o some_o space_n alter_v the_o manner_n of_o the_o pancreatic_a dust_n or_o ureter_n first_o take_v notice_n of_o by_o low_a etc._n ib._n dd_o etc._n etc._n betwixt_o the_o duplicature_n of_o the_o dura_n mater_n from_o behind_o forward_o the_o other_o half_o from_o before_o backward_o as_o in_o the_o figure_n now_o by_o this_o contrivance_n it_o be_v plain_a that_o first_o of_o all_o there_o be_v make_v two_o contrary_a torrent_n in_o one_o and_o the_o same_o channel_n by_o which_o mean_v the_o refluent_a blood_n make_v poor_a by_o the_o vast_a quantity_n of_o its_o rich_a part_n draw_v off_o as_o it_o be_v into_o animal_n spirit_n through_o a_o collision_n of_o part_n which_o by_o this_o contrivance_n must_v needs_o fall_v out_o be_v preserve_v in_o its_o due_a mixture_n which_o when_o at_o any_o time_n lose_v through_o the_o languish_a of_o its_o intestine_a motion_n or_o elasticity_n retard_v even_o its_o circular_a or_o progressive_a motion_n which_o when_o it_o happen_v but_o in_o some_o degree_n be_v the_o cause_n of_o many_o distemper_n and_o when_o altogether_o of_o death_n itself_o in_o the_o next_o place_n the_o circulation_n be_v at_o all_o time_n not_o only_o somewhat_o retard_v and_o the_o blood_n hinder_v together_o with_o the_o help_n of_o the_o bony_a cell_n at_o which_o the_o internal_a jugular_a vein_n enter_v the_o sinus_n especial_o in_o a_o erect_a posture_n from_o descend_v with_o that_o rapidness_n and_o weight_n it_o will_v otherwise_o have_v do_v upon_o the_o descend_a cava_fw-la to_o the_o heart_n but_o also_o much_o more_o so_o retard_v in_o a_o supine_n position_n of_o the_o head_n a_o posture_n most_o natural_a and_o ordinary_a for_o mankind_n to_o take_v their_o rest_n in_o through_o which_o contrivance_n in_o concurrence_n with_o that_o of_o the_o lateral_a sinus_n who_o structure_n be_v such_o that_o in_o the_o aforesaid_a posture_n the_o blood_n be_v force_v to_o climb_v upward_o before_o it_o can_v arrive_v at_o the_o place_n of_o its_o descent_n into_o the_o jugular_a vein_n there_o be_v make_v a_o more_o plentiful_a generation_n of_o animal_n spirit_n one_o chief_a cause_n of_o the_o great_a refreshment_n and_o vigorous_a disposition_n of_o the_o whole_a body_n we_o find_v after_o sleep_v as_o to_o the_o other_o manner_n of_o the_o vein_n enter_v this_o sinus_n viz._n from_o before_o backward_o it_o from_o thence_o happen_v that_o in_o a_o prone_a position_n of_o the_o brain_n a_o posture_n not_o uncommon_a among_o man_n the_o blood_n be_v help_v forward_o in_o its_o circulation_n through_o the_o sinus_n the_o truth_n and_o design_n whereof_o be_v at_o once_o both_o evident_a and_o point_a at_o by_o nature_n from_o the_o structure_n of_o this_o part_n and_o which_o therefore_o show_v the_o great_a usefulness_n of_o comparative_a anatomy_n in_o brute_n who_o by_o reason_n of_o such_o a_o position_n which_o the_o necessity_n of_o feed_v almost_o always_o keep_v they_o in_o have_v always_o such_o a_o disposition_n of_o this_o part_n to_o assist_v the_o blood_n in_o its_o heavy_a circulation_n the_o design_n of_o nature_n in_o make_v these_o channel_n so_o wide_o on_o a_o sudden_a in_o respect_n to_o the_o branch_n of_o vein_n late_o treat_v of_o terminate_n in_o they_o seem_v to_o correspond_v with_o the_o conformation_n of_o the_o part_n just_a now_o treat_v of_o and_o with_o that_o it_o have_v in_o make_v the_o ramification_n of_o artery_n afore_o take_v notice_n of_o so_o large_a and_o unproportionable_a to_o the_o trunk_n from_o which_o they_o spring_v which_o be_v a_o flower_n than_o ordinary_a circulation_n of_o blood_n through_o the_o brain_n in_o order_n to_o make_v a_o still_o more_o copious_a production_n of_o the_o animal_n spirit_n so_o call_v which_o profitable_a design_n and_o end_v of_o nature_n have_v nevertheless_o be_v attend_v with_o a_o very_a great_a inconvenience_n viz._n a_o extravasation_n of_o too_o much_o serum_n the_o usual_a effect_n or_o consequence_n of_o a_o slackened_a circulation_n have_v it_o not_o be_v for_o another_o provident_a contrivance_n of_o nature_n in_o the_o two_o communicant-branche_n betwixt_o the_o carotid_n and_o vertebral_n artery_n aforementioned_a p._n 36._o by_o the_o narrowness_n of_o who_o channel_n the_o influent_a blood_n be_v in_o some_o measure_n repress_v in_o its_o motion_n and_o a_o overcharge_n the_o vessel_n with_o blood_n prevent_v these_o sinus_n differ_v in_o structure_n one_o from_o another_o the_o longitudinal_n and_o lateral_a one_o have_v many_o transverse_a ligament_n which_o the_o other_o have_v not_o and_o the_o longitudinal_n have_v many_o small_a cavity_n or_o blind_a diverticulum_n as_o aforesaid_a which_o the_o lateral_a have_v not_o the_o use_n of_o they_o all_o be_v for_o strengthen_v and_o defend_v they_o from_o give_v way_n to_o the_o violent_a irruption_n of_o blood_n into_o they_o against_o which_o sometime_o notwithstanding_o they_o be_v not_o able_a to_o defend_v themselves_o as_o i_o have_v see_v in_o many_o skull_n ni_fw-fr which_z the_o blood_n have_v burst_v open_a the_o side_n of_o the_o sinus_n and_o find_v its_o way_n between_o the_o duplicature_n of_o it_o so_o as_o even_o to_o have_v make_v a_o fovea_fw-la or_o cavity_n in_o the_o cranium_fw-la itself_o as_o be_v before_o note_v one_o of_o which_o i_o have_v now_o by_o i_o chap._n vii_o of_o the_o plexus_fw-la choroeides_n this_o plexus_fw-la be_v a_o aggregate_v body_n make_v up_o of_o artery_n vein_n membrane_n and_o gland_n double_a on_o each_o side_n which_o have_v not_o before_o be_v take_v notice_n of_o and_o consequent_o have_v two_o original_n the_o first_o original_a be_v from_o the_o foremost_a branch_n of_o the_o communicant_a artery_n ee_o fig_n 1._o ee_o which_o run_v backward_o up_o betwixt_o the_o hinder_a lobe_n of_o the_o brain_n in_o which_o for_o some_o part_n of_o the_o way_n it_o be_v immerge_v and_o to_o which_o it_o give_v many_o large_a branch_n and_o the_o medulla_n oblongata_fw-la at_o length_n arrive_v at_o the_o lateral_a ventricles_n ee_o fig_n 5._o ee_o and_o make_v one_o part_n of_o
tunnel_n as_o well_o as_o by_o reason_n also_o of_o the_o parity_n of_o their_o uses_n the_o ancient_n give_v the_o name_n of_o infundibulum_fw-la in_o man_n it_o be_v close_o invert_v with_o the_o pia_fw-la mater_fw-la at_o its_o very_a entrance_n into_o the_o gland_n and_o from_o that_o place_n have_v not_o any_o manifest_a cavity_n i_o can_v discover_v by_o blast_n or_o style_n but_o be_v altogether_o of_o a_o medullary_a substance_n contrary_a to_o what_o it_o be_v in_o sheep_n or_o calf_n in_o which_o last_o creature_n where_o the_o part_n be_v large_a by_o insert_v a_o blow-pipe_n into_o that_o part_n of_o the_o infundibulum_fw-la next_o to_o the_o gland_n i_o have_v see_v its_o further_a tract_n or_o passage_n on_o the_o upper_a part_n thereof_o a_o little_a puff_v up_o and_o a_o considerable_a quantity_n of_o water_n regurgitate_v as_o though_o it_o have_v lie_v contain_v either_o in_o some_o pipe_n or_o porulous_a substance_n of_o that_o gland_n this_o difference_n be_v not_o take_v notice_n of_o by_o vieussenius_fw-la and_o therefore_o what_o he_o say_v of_o this_o part_n seem_v chief_o in_o this_o respect_n if_o not_o altogether_o applicable_a to_o the_o structure_n it_o have_v in_o men._n those_o two_o division_n or_o ramification_n of_o this_o part_n the_o say_a author_n mention_n 3._o vieussen_n p._n 49._o par_fw-fr 3._o one_o forward_o and_o the_o other_o backward_o in_o sheep_n calf_n etc._n etc._n i_o have_v always_o find_v correspondent_a to_o the_o description_n he_o there_o give_v of_o they_o but_o whether_o the_o first_o be_v protend_v so_o and_o terminate_v after_o the_o manner_n he_o there_o describe_v i_o somewhat_o scruple_n see_v i_o have_v always_o observe_v the_o extremity_n of_o that_o part_n in_o brute_n towards_o the_o foremost_a part_n of_o the_o gland_n sink_v as_o it_o be_v into_o the_o very_a substance_n thereof_o and_o afterward_o become_v present_o altogether_o imperceptible_a and_o in_o man_n the_o termination_n thereof_o just_a after_o the_o same_o manner_n save_v only_o that_o in_o the_o last_o it_o happen_v forthwith_o upon_o its_o approach_n to_o the_o gland_n without_o be_v protend_v either_o backward_o or_o forward_o the_o use_n of_o this_o part_n be_v certain_o to_o convey_v some_o sort_n of_o humidity_n from_o that_o great_a concamerated_a cavity_n within_o the_o brain_n result_v from_o its_o inward_a complication_n of_o part_n to_o the_o pituitary_a gland_n and_o the_o office_n of_o it_o be_v to_o receive_v and_o carry_v off_o this_o transmit_v humidity_n but_o as_o to_o how_o either_o this_o humidity_n be_v collect_v in_o the_o aforesaid_a cavity_n or_o how_o when_o convey_v into_o the_o gland_n it_o be_v carry_v off_o we_o be_v still_o as_o much_o in_o the_o dark_a as_o ever_o i_o know_v very_o well_o there_o be_v nothing_o more_o easy_a with_o the_o visionary_a philosopher_n than_o such_o a_o knack_n as_o this_o and_o now_o i_o think_v on_o it_o the_o great_a willis_n make_v nothing_o of_o turn_v a_o vein_n into_o a_o lymphoeduct_v in_o the_o glandula_n pinealis_fw-la and_o plexus_fw-la choroeides_n 46._o will._n p._n 46._o no_o less_o than_o which_o do_v also_o the_o accurate_a vieussenius_fw-la 3._o vieus_n p._n 110_o par_fw-fr 3._o in_o the_o plexus_fw-la belong_v to_o the_o four_o ventricle_n but_o how_o consonant_a this_o be_v to_o the_o rational_a structure_n or_o mechanism_n of_o part_n neither_o the_o one_o or_o the_o other_o have_v be_v so_o kind_a as_o to_o explain_v now_o as_o to_o the_o plexus_fw-la and_o gland_n before_o mention_v it_o be_v evident_a by_o what_o have_v be_v already_o discover_v and_o according_o give_v a_o account_n of_o in_o the_o precede_a page_n they_o be_v furnish_v with_o lymphoeduct_n as_o proper_a reductory_n vessel_n so_o that_o so_o far_o the_o prophecy_n be_v vanish_v but_o as_o to_o the_o remain_a gland_n i_o be_o not_o so_o fond_a of_o guess_v to_o say_v it_o have_v any_o and_o consequent_o all_o i_o can_v say_v be_v that_o as_o i_o look_v upon_o the_o infundibulum_fw-la to_o be_v no_o more_o than_o a_o large_a lymphoeduct_v various_o ramify_v through_o the_o glandula_n pituitaria_fw-la discharge_v its_o liquor_n by_o those_o many_o small_a branch_n into_o the_o vein_n disperse_v through_o that_o part_n to_o be_v reduce_v after_o the_o manner_n it_o be_v in_o all_o other_o secretory_n gland_n back_n to_o the_o blood_n gain_v and_o that_o which_o seem_v most_o to_o favour_n this_o conjecture_n be_v the_o extraordinary_a humidity_n of_o this_o gland_n especial_o in_o brute_n above_o the_o rest_n of_o the_o whole_a body_n as_o serve_v not_o only_a to_o export_v what_o lympha_fw-la be_v separate_v from_o several_a artery_n disperse_v through_o it_o but_o that_o also_o which_o it_o be_v charge_v with_o from_o the_o brain_n itself_o and_o to_o this_o twofold_a manner_n or_o double_a office_n of_o secretion_n be_v owe_v the_o two_o distinct_a substance_n it_o seem_v to_o consist_v of_o the_o one_o be_v accommodate_v to_o that_o part_n of_o the_o lympha_fw-la come_v from_o the_o brain_n and_o be_v therefore_o whitish_a the_o other_o to_o that_o separate_a immediate_o out_o of_o the_o blood_n and_o be_v therefore_o red_a last_o as_o to_o the_o manner_n how_o the_o lympha_fw-la pass_v down_o through_o the_o infundibulum_fw-la pass_v down_o through_o the_o infundibulum_fw-la from_o the_o brain_n to_o the_o glandula_n pituitaria_fw-la i_o look_v upon_o it_o to_o be_v in_o the_o form_n of_o condense_a vapour_n arise_v from_o the_o artery_n of_o the_o plexus_fw-la choroeides_n emit_v thence_o for_o the_o keep_n moist_a and_o in_o good_a order_n that_o inward_a production_n of_o the_o pia_fw-la mater_fw-la spread_v all_o over_o its_o parietes_fw-la which_o be_v a_o membranous_a dry_a part_n of_o itself_o may_v otherwise_o become_v injurious_a to_o that_o fine_a medullary_n part_n lie_v under_o and_o be_v contiguous_a to_o it_o in_o which_o there_o be_v a_o continual_a motion_n of_o animal_n spirit_n who_o tract_n and_o consequent_o they_o themselves_o through_o any_o the_o least_o intemperance_n of_o this_o membrane_n will_v be_v in_o great_a danger_n of_o either_o some_o obstruction_n or_o disorder_n and_o that_o this_o lympha_fw-la be_v only_a the_o result_n of_o the_o aforesaid_a vapour_n i_o be_o the_o more_o ready_o incline_v to_o believe_v because_o i_o never_o see_v water_n in_o that_o part_n of_o any_o sound_a brain_n nor_o unsound_a neither_o where_o the_o plexus_fw-la choroeides_n be_v firm_a and_o there_o be_v no_o reasonable_a ground_n by_o the_o extravasation_n of_o serum_n in_o some_o other_o remote_a part_n of_o the_o brain_n to_o believe_v it_o have_v its_o rise_n from_o thence_o chap._n x._o of_o the_o glandula_n pinealis_fw-la the_o gland_n call_v pinealis_fw-la from_o its_o figure_n be_v about_o the_o bigness_n of_o a_o ordinary_a pea_n prefix_v to_o the_o two_o prominency_n call_v nates_n hereafter_o to_o be_v describe_v at_o the_o end_n of_o the_o three_o ventricle_n immediate_o under_o the_o broad_a and_o hinder_a part_n of_o the_o fornix_n with_o which_o nevertheless_o it_o have_v no_o connexion_n 71._o vieuss_n p._n 71._o as_o vieussenius_fw-la say_v it_o have_v and_o over_o that_o part_n of_o the_o rima_n in_o the_o three_o ventricle_n call_v anus_fw-la it_o be_v join_v to_o the_o nates_n by_o several_a fibrous_a root_n and_o become_v a_o support_n to_o that_o part_n of_o the_o plexus_fw-la choroeides_n there_o situate_a in_o a_o hydropical_a brain_n of_o a_o strumou_n boy_n i_o have_v see_v it_o swell_v to_o a_o size_n of_o three_o time_n its_o ordinary_a magnitude_n and_o by_o reason_n of_o the_o abundance_n of_o stagnate_n gelatinous_a lympha_fw-la contain_v in_o it_o perfect_o transparent_a hence_o it_o must_v plain_o appear_v that_o this_o part_n be_v a_o mere_a gland_n and_o by_o what_o be_v say_v before_o conformable_a to_o what_o have_v be_v observe_v in_o this_o hydropic_a brain_n of_o the_o conglobate_n or_o lymphatic_a kind_n and_o by_o consequence_n a_o very_a unfit_a part_n to_o be_v make_v a_o receptacle_n of_o animal_n spirit_n 71._o vieus_n p._n 71._o as_o vieussenius_fw-la make_v it_o and_o much_o more_o a_o place_n of_o residence_n for_o the_o soul_n according_a to_o des_n chartes_n it_o be_v true_a there_o be_v two_o fair_a medullary_n tract_n arise_v seem_o from_o the_o two_o root_n of_o the_o fornix_n stretch_v length-way_n upon_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la as_o far_o back_o as_o this_o gland_n by_o vieussenius_fw-la call_v as_o this_o gland_n 3._o vieuss_n p._n 6â—_n par_fw-fr 3._o by_o vieussenius_fw-la call_v tractatus_fw-la medullaris_fw-la nervorum_fw-la opticorum_fw-la thalamis_fw-la interjectus_fw-la as_o though_o it_o be_v only_o one_o and_o according_o be_v so_o delineate_v by_o he_o tab._n 7._o gg_n but_o indeed_o be_v two_o one_o on_o each_o side_n about_o which_o place_n they_o turn_v in_o and_o by_o a_o transverse_a bend_a kind_n of_o a_o process_n by_o the_o same_o
author_n call_v tractus_n medullaris_fw-la natibus_fw-la antepositus_fw-la unite_v as_o he_o have_v exact_o observe_v 1._o willis_n p._n 9_o col_fw-fr 1._o par_fw-fr 1._o and_o this_o doubtless_o give_v occasion_n to_o the_o error_n of_o des_n chartes_n as_o willis_n true_o think_v who_o sublime_a and_o most_o deservedly-admired_a philosophy_n have_v doubtless_o be_v much_o more_o useful_a have_v he_o converse_v more_o with_o dissection_n and_o less_o with_o invisibility_n and_o vieussenius_fw-la too_o 3_o mural_a p._n 508._o will._n p._n 10._o col_fw-fr 1_o par_fw-fr 3_o with_o who_o in_o the_o same_o mistake_n do_v agree_v muraltus_fw-la and_o willis_n for_o upon_o a_o more_o heedful_a inspection_n as_o be_v most_o evident_a in_o the_o brain_n aforementioned_a it_o will_v be_v find_v that_o no_o part_n of_o the_o process_n aforesaid_a however_o near_o it_o come_v to_o this_o gland_n do_v in_o any_o wise_a become_v continuous_a to_o it_o dr._n wharton_n also_o stumble_v upon_o these_o 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de_fw-fr cereb_n cort._n p._n 78_o 81._o par_fw-fr 3._o be_v to_o discover_v the_o cortical_a part_n to_o consist_v of_o gland_n of_o a_o oval_n depress_v figure_n and_o in_o his_o opinion_n of_o the_o conglomerate_v kind_a but_o that_o how_o proper_o as_o also_o his_o calling_n the_o nerve_n their_o excretory_a duct_n i_o leave_v to_o the_o judgement_n of_o other_o and_o the_o medullary_a part_n to_o consist_v of_o various_a fibre_n immerge_v in_o and_o have_v their_o original_n from_o the_o aforesaid_a gland_n derive_v from_o they_o a_o certain_a liquor_n call_v nervous_a juice_n concern_v the_o existence_n of_o which_o in_o the_o usual_a sense_n it_o be_v take_v in_o as_o a_o fluid_a body_n contain_v and_o run_v continual_o in_o the_o channel_n of_o the_o nerve_n as_o water_n in_o wooden_a or_o leaden_a pipe_n for_o either_o nutrition_n or_o censation_n be_v a_o thing_n somewhat_o improbable_a it_o be_v not_o only_o possible_a but_o very_o easy_a to_o resolve_v those_o two_o 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only_o a_o aggregate_v of_o different_a vessel_n as_o also_o i_o do_v of_o all_o the_o rest_n of_o the_o part_n of_o the_o body_n contain_v different_a sort_n of_o fluids_n of_o these_o vessel_n some_o contain_v a_o more_o compound_a liquor_n common_o call_v blood_n which_o whilst_o in_o that_o state_n by_o reason_n of_o the_o globuli_fw-la swim_v on_o it_o looks_z red_z and_o by_o reason_n of_o a_o tubulous_a poor_a of_o a_o proper_a size_n and_o figure_n so_o continue_v to_o the_o vessel_n we_o call_v a_o vein_n that_o it_o undergo_v a_o continual_a quick_a circulation_n another_o sort_n of_o vessel_n there_o be_v which_o receive_v and_o contain_v a_o more_o simple_a fluid_a body_n of_o a_o thin_a transparent_a nature_n which_o when_o in_o some_o part_n of_o the_o body_n give_v the_o name_n of_o lymphduct_n to_o the_o vessel_n that_o it_o run_v in_o but_o when_o in_o these_o vessel_n which_o be_v discover_v to_o make_v up_o the_o great_a substance_n of_o the_o brain_n whether_o 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whiteness_n
to_o make_v inflation_n a_o error_n incident_a to_o the_o immortal_a borellus_n also_o lociâ—_n borel_n de_fw-fr mot_fw-fr atiâ—_n p._n ult_n prep_v 23._o &_o â—â—ribus_fw-la â—lâ—s_fw-la lociâ—_n who_o imaginary_a discourse_n upon_o this_o subject_n seem_v of_o a_o very_a different_a thread_n from_o the_o rest_n of_o his_o excellent_a work_n if_o therefore_o what_o have_v be_v already_o say_v about_o the_o structure_n of_o part_n be_v remember_v viz._n that_o the_o medullary_a part_n of_o the_o brain_n be_v only_o a_o contexture_n of_o vessel_n that_o its_o nervous_a propagation_n or_o nerve_n be_v also_o a_o compage_n of_o vessel_n former_o call_v filament_n much_o more_o narrow_a than_o those_o of_o the_o brain_n itself_o and_o that_o these_o nerve_n produce_v or_o at_o least_o terminate_v in_o the_o fibres_fw-es of_o all_o sort_n of_o sensible_a part_n whatsoever_o though_o of_o a_o different_a texture_n as_o well_o as_o those_o carnous_a one_o of_o muscle_n which_o last_o be_v tubulous_a it_o will_v not_o be_v in_o the_o least_o unreasonable_a to_o infer_v that_o these_o body_n be_v keep_v continual_o turgid_a with_o the_o contain_v fluid_a be_v equal_o capable_a of_o transmit_v or_o receive_v impression_n of_o the_o object_n as_o if_o they_o be_v stretch_v longitudinal_o like_o a_o bowstring_n from_o each_o extremity_n according_a as_o borellus_n have_v observe_v and_o as_o to_o muscular_a motion_n allow_v only_o what_o may_v direct_o be_v infer_v from_o what_o have_v previous_o be_v say_v viz._n that_o the_o nervous_a and_o carnous_a fibre_n be_v only_o a_o congery_n of_o fluids_n contain_v in_o certain_a vessel_n communicate_v with_o each_o other_o that_o by_o reason_n of_o a_o plenitude_n in_o the_o aforesaid_a fibres_fw-fr the_o whole_a machine_n be_v in_o a_o constant_a equilibrium_n it_o will_v necessary_o follow_v upon_o the_o common_a postulatum_fw-la to_o which_o all_o mankind_n must_v be_v beholdden_v upon_o all_o such_o explication_n as_o these_o to_o the_o world_n end_n viz._n that_o the_o sensative_a or_o rational_a soul_n can_v command_v the_o animal_n spirit_n which_o i_o call_v only_o a_o nervous_a fluid_fw-la into_o a_o primus_fw-la impetus_fw-la or_o local_a motion_n that_o a_o part_n of_o that_o liquor_n whenever_o a_o muscle_n contract_v be_v transmit_v through_o the_o vessel_n which_o contain_v it_o from_o the_o great_a reservatory_n thereof_o the_o brain_n to_o its_o carnous_a fibre_n into_o who_o vessel_n be_v so_o much_o narrow_a than_o those_o of_o the_o nerve_n even_o by_o virtue_n of_o the_o same_o force_n which_o move_v it_o from_o the_o brain_n that_o liquor_n be_v drive_v after_o a_o most_o rapid_a manner_n which_o effect_v to_o any_o acquaint_v with_o the_o nature_n of_o fluids_n and_o mechanical_a law_n of_o motion_n by_o projection_n need_v not_o any_o demonstration_n cause_v the_o intumescence_n or_o inflation_n of_o the_o muscle_n the_o same_o liquor_n at_o the_o same_o time_n be_v drive_v back_o again_o 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either_o to_o certain_a tract_n or_o interstice_n betwixt_o the_o filament_n of_o the_o nerve_n continue_v from_o the_o brain_n or_o the_o original_a of_o the_o nerve_n through_o their_o whole_a production_n to_o the_o muscle_n of_o which_o sort_n be_v the_o cartesian_o or_o else_o to_o a_o certain_a nervous_a juice_n for_o their_o place_n of_o residence_n of_o which_o sort_n be_v most_o of_o the_o modern_n and_o particular_o vieussenius_fw-la by_o which_o passage_n or_o out_o of_o which_o juice_n these_o fine_a invisible_a thing_n be_v either_o voluntary_o by_o the_o command_n of_o the_o soul_n or_o inadvertent_o from_o several_a either_o inward_a or_o outward_a impression_n transmit_v in_o order_n to_o produce_v motion_n which_o if_o true_a and_o the_o only_a way_n of_o produce_v muscular_a motion_n i_o beg_v leave_n to_o ask_v how_o it_o come_v to_o pass_v by_o either_o of_o these_o way_n that_o when_o another_o person_n bend_v my_o arm_n and_o that_o againfl_fw-mi my_o will_n too_o 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from_o the_o brain_n into_o the_o carnous_a fibres_fw-fr that_o hypothesis_n of_o steno_n to_o the_o contrary_n have_v be_v convict_v long_o since_o by_o borellus_n in_o his_o book_n de_fw-fr motu_fw-la animalium_fw-la though_o not_o without_o the_o concurrence_n or_o sympraxis_fw-la of_o the_o natural_a elasticity_n of_o the_o fibres_fw-es belong_v to_o the_o muscle_n to_o be_v contract_v so_o likewise_o without_o the_o transmission_n of_o animal_n spirit_n from_o some_o force_n or_o another_o i_o deny_v even_o the_o possibility_n of_o that_o stiffness_n or_o hardness_n which_o be_v easy_o preserve_v in_o all_o contract_a muscle_n feel_v and_o seem_v as_o though_o they_o be_v indurate_v and_o swell_v out_o as_o real_o they_o be_v whether_o it_o be_v in_o the_o case_n of_o voluntary_a or_o involudtary_a motion_n in_o confirmation_n of_o which_o i_o affirm_v that_o though_o by_o the_o cut_n of_o the_o carnous_a fibres_fw-fr of_o any_o muscle_n through_o which_o way_n soever_o it_o be_v the_o contract_a part_n
both_o of_o that_o membrane_n and_o the_o blood-vessel_n themselves_o it_o be_v also_o imperfect_o divide_v through_o all_o its_o external_a cortical_a part_n by_o the_o pia_fw-la mater_fw-la though_o not_o so_o profound_o to_o the_o end_n the_o blood-vessel_n may_v penetrate_v this_o part_n in_o more_o sine_fw-la and_o reticular_a ramification_n and_o that_o by_o the_o pulsation_n of_o the_o artery_n the_o interjacent_a cortical_a gland_n or_o rather_o vessel_n may_v more_o free_o make_v their_o proper_a secretion_n next_o it_o may_v be_v consider_v in_o its_o inward_a appearance_n which_o be_v concave_a and_o medullary_a take_v its_o original_n from_o the_o extremity_n or_o apices_fw-la of_o the_o medulla_n oblongata_fw-la or_o rather_o a_o little_a more_o forward_o from_o the_o foremost_a part_n of_o vieussenius_n oval_a centre_n common_o call_v processus_n lentiforme_v or_o according_a to_o dr._n willis_n corpora_fw-la striata_fw-la from_o hence_o it_o be_v present_o reflect_v 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pituitaria_fw-la by_o the_o infundibulum_fw-la and_o glandula_n pinealis_fw-la which_o also_o have_v already_o be_v describe_v of_o all_o which_o brief_o in_o their_o order_n the_o three_o ventricles_n aa_n fig_n 5._o aa_n by_o cut_v asunder_o the_o fornix_n near_o to_o its_o root_n and_o turn_v it_o backward_o over_o the_o nates_n ventricles_n the_o three_o ventricles_n testes_fw-la and_o glandula_n pinealis_fw-la appear_v to_o be_v but_o one_o those_o on_o each_o side_n it_o be_v call_v the_o laterales_fw-la in_o which_o be_v the_o corpora_fw-la striata_fw-la thalami_fw-la nervorum_fw-la opticorum_fw-la and_o crura_fw-la medulla_n oblongata_fw-la that_o rima_n so_o far_o as_o it_o be_v cover_v with_o the_o fornix_n and_o part_n the_o crura_fw-la medulla_n oblongata_fw-la be_v the_o three_o from_o the_o extreme_a limit_n of_o these_o two_o side_n ventricles_n etc._n vieuss_n t._n 10_o aa_n etc._n etc._n from_o before_o to_o behind_o ovale_n centrum_fw-la ovale_n do_v arise_v that_o medullary_a space_n call_v by_o vieussenius_fw-la centrum_fw-la ovale_n in_o his_o opinion_n the_o great_a dispensatory_a of_o animal_n spirit_n the_o fore_z part_n whereof_o willis_n call_v limbus_n anterior_a corporis_fw-la striati_fw-la f._n will._n de_fw-fr an._n bâ—ut_o p_o 42._o t._n 8._o f._n the_o fornix_n be_v a_o medullary_a part_n arise_v from_o two_o root_n in_o the_o foremost_a part_n of_o the_o basis_n of_o the_o brain_n bb_n the_o forix_n fig_n 5._o aa_o bb_n lie_v betwixt_o and_o upon_o the_o uppermost_a part_n of_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la which_o root_n come_v out_o of_o the_o foremost_a part_n of_o the_o geminum_fw-la centrum_fw-la semicirculari_fw-la so_o call_v by_o vieussenius_fw-la like_o two_o large_a nerve_n and_o afterward_o join_v together_o constitute_v a_o broadish_n medullary_a body_n which_o after_o have_v first_o project_v itself_o for_o some_o space_n forward_o betwixt_o the_o corpora_fw-la striata_fw-la and_o afterward_o run_v 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of_o the_o sea-horse_n and_o be_v in_o colour_n much_o like_o the_o silkworm_n certain_a minute_n stria_n 5._o malp._n de_fw-fr câ—râ—b_n p._n 5._o which_o malpighius_n call_v fibrae_fw-la cross_v they_o like_o ring_n oblique_o contrary_a to_o what_o the_o same_o author_n account_n be_v of_o they_o who_o say_v those_o fibrae_fw-la or_o striae_fw-la run_v upon_o they_o otherwise_o viz._n as_o they_o do_v on_o the_o septum_fw-la lucidum_fw-la i._n e._n longitudinal_o and_o embrace_v the_o th._n ner._n opt._n on_o their_o upper_a part_n on_o both_o side_n but_o adhere_v close_o to_o they_o as_o one_o continue_a substance_n on_o their_o under_o part_n in_o which_o place_n they_o be_v call_v by_o vieussenius_fw-la 61._o vieus_n p_o 61._o posteriores_fw-la very_fw-la fornicis_fw-la viz._n corporis_fw-la callosi_fw-la columnae_n become_v there_o continuous_a with_o the_o hinder_a part_n of_o the_o corpus_fw-la callosum_fw-la where_o it_o wind_v down_o upon_o the_o side_n of_o the_o crura_fw-la medulla_n oblongata_fw-la ibid._n ibid._n and_o make_v up_o that_o undermost_a space_n or_o cavity_n of_o the_o two_o side_n ventricles_n by_o the_o say_v aurantius_fw-la call_v ventriculi_fw-la hippocampi_fw-la or_o bombycini_fw-la and_o vieussenius_fw-la call_v the_o hinder_a part_n of_o the_o centrum_fw-la ovale_n which_o by_o that_o kind_n of_o curve_v passage_n lose_v something_o of_o its_o oval_a figure_n lucidum_fw-la the_o septum_fw-la lucidum_fw-la the_o septum_fw-la lucidum_fw-la some_o of_o the_o modern_n think_v to_o arise_v from_o the_o fornix_n thence_o ascend_v to_o the_o internal_a superficies_n of_o the_o corpus_fw-la callosum_fw-la other_o from_o this_o last_o descend_v down_o to_o the_o fornix_n but_o most_o likely_a from_o this_o last_o where_o towards_o its_o foremost_a part_n i_o have_v always_o sound_v it_o double_a first_o take_v notice_n of_o by_o silvius_n de_fw-fr le_fw-fr boe_n and_o as_o vieussenius_fw-la true_o say_v 13._o sylu._n deal_n boe_n disp_n med._n p._n 19_o par_fw-fr 1._o thes_n 13._o often_o with_o water_n in_o its_o duplicature_n it_o be_v a_o very_a thin_a medullary_o transparent_a body_n intermediate_v to_o the_o corpus_fw-la callosum_fw-la and_o subjacent_a fornix_n by_o mean_n whereof_o the_o two_o lateral_a ventricles_n be_v in_o that_o place_n separate_v one_o from_o another_o the_o corpora_fw-la striata_fw-la etc._n the_o corpora_fw-la striata_fw-la fig_n 5._o i_o 1_o etc._n etc._n or_o processus_n lentiforme_v be_v two_o prominency_n situate_v something_o high_a than_o and_o in_o man_n a_o great_a part_n of_o they_o on_o each_o side_n though_o dr._n willis_n say_v where_o the_o corpora_fw-la striata_fw-la end_v the_o thalami_fw-la nervorum_fw-la opticorum_fw-la begin_v which_o be_v only_o so_o in_o brute_n of_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la or_o juga_n crurum_fw-la medullae_fw-la oblongatae_n and_o be_v so_o call_v from_o the_o many_o white_a streak_n appear_v in_o they_o descend_v oblique_o to_o the_o medulla_n oblongata_fw-la with_o cineritious_a substance_n come_v betwixt_o they_o when_o they_o be_v cut_v horizontal_o they_o run_v down_o on_o each_o side_n the_o thalami_fw-la nervorum_fw-la opticorum_fw-la as_o far_a as_o till_o the_o corpus_fw-la callosum_fw-la begin_v to_o wind_v back_o
upon_o the_o crura_fw-la medulla_n oblongata_fw-la towards_o the_o hindermost_a part_n thereof_o i_o have_v get_v they_o delineate_v here_o exact_o true_a though_o by_o neglect_n without_o the_o striae_fw-la find_v all_o the_o cut_n of_o they_o in_o willis_n to_o be_v from_o brute_n except_o one_o which_o be_v do_v very_o ill_o and_o those_o in_o vieussenius_fw-la very_o false_a unless_o in_o figure_n the_o 8_o which_o also_o want_v the_o striae_fw-la opticorum_fw-la the_o thalami_fw-la nervorum_fw-la opticorum_fw-la the_o thalami_fw-la nervorum_fw-la opticorum_fw-la be_v two_o prominent_a body_n more_o pure_o medullary_n on_o their_o outward_a superficies_n than_o within_o which_o meet_v together_o like_o the_o two_o topmost_a stroke_n of_o a_o in_n invert_v constitute_v the_o uppermost_a part_n only_o of_o the_o crura_fw-la medulla_n oblongata_fw-la in_o that_o form_n the_o other_o or_o undermost_a side_n be_v quite_o of_o another_o figure_n and_o see_v they_o be_v the_o immediate_a 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substance_n which_o at_o last_o towards_o their_o foremost_a part_n meet_v together_o make_v up_o the_o body_n of_o the_o optic_a nerve_n willis_n say_v nothing_o of_o these_o fibre_n though_o in_o his_o opinion_n galen_n do_v not_o improper_o give_v they_o that_o name_n vieussenius_fw-la paint_v they_o very_o strong_a as_o for_o my_o part_n i_o never_o can_v find_v any_o fibre_n at_o all_o appear_v in_o their_o external_a medullary_n part_n those_o within_o be_v very_o small_a at_o best_a and_o scarce_o discernible_a on_o the_o outside_n of_o these_o i_o have_v always_o find_v and_o often_o show_v a_o very_a fair_a medullary_n tract_n mm_o a_o medullary_n tract_n tab._n 5._o mm_o here_o describe_v run_v all-along_a betwixt_o the_o corpora_fw-la striata_fw-la &c_n &c_n from_o the_o very_a hindermost_a extent_n of_o the_o corpora_fw-la striata_fw-la forward_o down_o to_o the_o very_a root_n of_o the_o fornix_n to_o which_o they_o seem_v to_o be_v continuous_a infundibulum_fw-la the_o 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infundibulum_fw-la the_o first_o whereof_o be_v behind_o the_o testes_fw-la under_o the_o valvula_n major_a hereafter_o to_o be_v describe_v the_o other_o just_a under_o the_o pineal_a gland_n or_o the_o begin_n of_o the_o rima_n which_o two_o meet_v in_o a_o aperture_n under_o the_o nates_n and_o testes_fw-la 3._o vieus_n p._n 73._o par_fw-fr 3._o by_o vieussenius_fw-la call_v aquae_fw-la emissarium_fw-la have_v a_o steep_a descent_n into_o the_o infundibulum_fw-la and_o the_o last_o at_o the_o end_n of_o the_o rima_n or_o just_a under_o the_o root_n of_o the_o fornix_n and_o all_o end_n at_o length_n though_o by_o two_o different_a passage_n in_o the_o infundibulum_fw-la it_o may_v not_o be_v unseasonable_a in_o the_o next_o place_n to_o take_v notice_n of_o two_o remarkable_a very_o fair_a process_n cc_o the_o nates_n and_o testes_fw-la tab._n 7._o cc_o call_v nates_n and_o testes_fw-la by_o former_a anatomist_n so_o name_v from_o the_o resemblance_n they_o have_v to_o those_o part_n but_o it_o be_v plain_a from_o thence_o they_o be_v only_o use_v to_o dissect_v brute_n in_o which_o they_o have_v such_o a_o proportion_n as_o be_v betwixt_o they_o whereas_o in_o man_n it_o be_v plain_a they_o be_v very_o near_o of_o the_o same_o size_n and_o not_o very_o different_a in_o form_n be_v oblong_o and_o accuminate_v towards_o their_o extremity_n but_o in_o sheep_n calf_n and_o most_o other_o creature_n the_o nates_n be_v round_o and_o large_a and_o the_o testes_fw-la oblong_o somewhat_o accuminate_v and_o very_o small_a before_o these_o natiform_a process_n under_o the_o glandula_n pinealis_fw-la run_v a_o transverse_a process_n before_o take_v notice_n of_o pag._n 84_o f_o vieussen_n tab._n 8._o f_o by_o vieussenius_fw-la call_v processus_n natibus_fw-la antepositus_fw-la and_o nervuli_fw-la aemulus_fw-la which_o upon_o further_a enquiry_n by_o draw_v the_o thalami_fw-la nervorum_fw-la opticorum_fw-la still_o wide_o appear_v to_o be_v rather_o nervi_fw-la than_o nervuli_fw-la aemulus_fw-la be_v as_o thick_a as_o that_o behind_o the_o root_n of_o the_o fornix_n to_o which_o in_o situation_n it_o be_v just_o opposite_a and_o seem_v to_o join_v the_o thalami_fw-la nervorum_fw-la opticorum_fw-la together_o as_o that_o do_v the_o corpora_fw-la striata_fw-la in_o what_o rank_n to_o place_v they_o it_o be_v hard_a to_o say_v as_o be_v neither_o proper_a appendix_n to_o either_o the_o brain_n or_o cerebellum_fw-la proper_o so_o call_v and_o be_v divide_v from_o the_o medulla_n oblongata_fw-la in_o some_o measure_n by_o a_o interstice_n common_o call_v ductus_fw-la ad_fw-la infundibulum_fw-la by_o the_o modern_n but_o by_o the_o ancient_n a_o passage_n for_o the_o animal_n spirit_n to_o the_o four_o or_o noble_a ventricle_n they_o be_v situate_v upon_o that_o part_n of_o the_o medulla_n oblongata_fw-la which_o be_v between_o the_o cerebrum_fw-la and_o cerebellum_fw-la isthmus_n the_o isthmus_n which_o space_n be_v before_o call_v isthmus_n opposite_a to_o that_o part_n call_v from_o its_o author_n pons_n varolii_n and_o by_o many_o author_n as_o bartholine_n spigelius_n highmore_n etc._n etc._n thought_n to_o be_v the_o two_o hindermost_a root_n of_o the_o spinalis_fw-la medulla_n which_o much_o more_o likely_a riolanus_n make_v the_o process_n of_o the_o cerebellum_fw-la to_o be_v gg_n visalius_n p._n 766_o 767._o fig._n 10._o aa_o ay_o k._n &_o fig._n 11._o gg_n and_o with_o he_o the_o great_a vesalius_n who_o paint_v they_o so_o from_o this_o intermediate_v situation_n dr._n willis_n think_v sit_v to_o make_v they_o as_o it_o be_v a_o intelligence_n office_n betwixt_o the_o cerebrum_fw-la and_o cerebellum_fw-la how_o right_o i_o refer_v to_o the_o judgement_n of_o other_o it_o be_v certain_a they_o be_v medullary_a body_n and_o contribute_v to_o the_o make_v the_o animal_n fluid_a or_o spirit_n so_o call_v after_o the_o same_o manner_n as_o the_o rest_n of_o the_o brain_n do_v for_o in_o cut_v they_o through_o after_o have_v take_v the_o reticular_a expansion_n of_o blood-vessel_n off_o from_o they_o which_o be_v very_o large_a here_o and_o eminent_o conspicuous_a in_o injected_a brain_n i_o find_v they_o of_o the_o very_a same_o substance_n with_o the_o processus_n
annular_a process_n run_v down_o upon_o the_o med._n oblongata_fw-la the_o space_n of_o a_o inch_n end_v a_o good_a space_n below_o the_o place_n where_o the_o eight_o pair_n of_o nerve_n begin_v which_o have_v their_o original_n between_o the_o corpora_fw-la olivaria_n and_o the_o chordal_a process_n partly_o on_o the_o other_o side_n thereof_o contrary_a to_o the_o account_n we_o have_v of_o they_o by_o dr._n willis_n 3._o willis_n p._n 13._o col_fw-fr 1._o par_fw-fr 1_o p._n 61._o col_fw-fr 2._o par_fw-fr 3._o who_o describe_v they_o as_o end_n in_o point_a extremity_n just_o where_o those_o nerve_n have_v their_o original_n on_o each_o side_n of_o these_o appear_v plain_o the_o corpora_fw-la olivaria_n o._n the_o corpara_n olivaria_n iâ—â—d_n o._n so_o call_v from_o their_o figure_n as_o the_o former_a be_v by_o vieussenius_fw-la which_o with_o the_o corpora_fw-la pyramidalia_n and_o two_o white_a body_n behind_o the_o infundibulum_fw-la he_o call_v conceptacula_fw-la spirituum_fw-la animalium_fw-la or_o place_n contain_v animal_n spirit_n upon_o several_a occasion_n of_o use_n to_o the_o brain_n both_o in_o its_o natural_a and_o intellectual_a faculty_n chap._n xvi_o of_o the_o nerve_n in_o the_o same_o position_n of_o the_o brain_n we_o also_o have_v a_o sit_v time_n of_o take_v a_o view_n of_o the_o nerve_n which_o be_v still_o medullary_a production_n of_o the_o brain_n disperse_v to_o all_o the_o part_n of_o the_o body_n which_o have_v need_v of_o either_o sense_n or_o motion_n and_o these_o be_v in_o number_n ten_o pair_n or_o conjugation_n have_v their_o name_n and_o original_n as_o follow_v the_o first_o be_v the_o olfactory_a pair_n which_o after_o they_o leave_v the_o former_a lobe_n of_o the_o brain_n and_o begin_v to_o run_v to_o the_o bone_n call_v ethmoide_v take_v the_o name_n of_o processus_n mammillare_v but_o this_o be_v chief_o in_o brute_n where_o through_o their_o largeness_n they_o have_v that_o appearance_n and_o be_v manifest_o hollow_a by_o the_o utmost_a scrutiny_n i_o have_v be_v able_a to_o make_v they_o have_v but_o one_o original_a and_o that_o be_v from_o the_o undermost_a and_o foremost_a part_n of_o the_o crura_fw-la medulla_n oblongata_fw-la where_o they_o advance_v on_o each_o side_n into_o the_o globous_a medullary_n part_n of_o the_o brain_n from_o whence_o run_v conceal_v betwixt_o its_o foremost_a and_o hinder_a lobe_n oblique_o for_o a_o good_a space_n at_o last_o they_o come_v in_o sight_n as_o you_o see_v they_o in_o the_o figure_n and_o by_o what_o mean_v vieussenius_fw-la come_v to_o find_v such_o diffuse_a original_n for_o they_o as_o he_o speak_v of_o i_o know_v not_o their_o use_n be_v know_v to_o most_o and_o a_o particular_a account_n thereof_o as_o of_o the_o rest_n together_o with_o the_o manner_n of_o sensation_n with_o relation_n to_o the_o external_a organ_n of_o sense_n be_v much_o more_o fit_a for_o a_o physiological_a tract_n than_o one_o of_o this_o kind_n i_o shall_v therefore_o only_o at_o this_o time_n give_v a_o general_a description_n of_o the_o nerve_n belong_v to_o the_o brain_n how_o and_o where_o they_o arise_v the_o difference_n or_o variety_n whereof_o serve_v very_o well_o to_o inform_v we_o according_a to_o several_a late_a theory_n concern_v the_o different_a reservatory_n of_o the_o animal_n fluid_a or_o spirit_n and_o the_o different_a dispensation_n of_o the_o same_o to_o several_a part_n of_o the_o body_n the_o second_o pair_n be_v call_v the_o optic_n or_o see_v nerve_n 2._o the_o second_o pair_n ibid._n 2_o 2._o of_o which_o i_o sin_v no_o more_o original_n than_o of_o the_o former_a and_o that_o be_v from_o those_o medullary_n part_v call_v thalami_fw-la nervorum_fw-la opticorum_fw-la though_o vieussenius_fw-la say_v they_o be_v from_o several_a part_n and_o willis_n in_o general_a term_n from_o the_o aforesaid_a thalami_fw-la nervorum_fw-la opticorum_fw-la behind_o the_o corpora_fw-la striata_fw-la which_o description_n be_v more_o exact_a in_o quadruped_n where_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la be_v altogether_o in_o situation_n behind_o the_o corpora_fw-la striata_fw-la than_o in_o man_n where_o a_o great_a part_n of_o the_o corpora_fw-la striata_fw-la be_v situate_v on_o the_o outside_n of_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la and_o only_o their_o head_n or_o extremity_n before_o they_o the_o blood_n vessel_n mention_v both_o by_o willis_n and_o vieussenius_fw-la belong_v to_o these_o nerve_n i_o have_v see_v to_o run_v not_o only_o upon_o or_o with_o they_o but_o also_o in_o injected_a body_n exact_o quite_o through_o the_o medullary_a substance_n of_o they_o into_o the_o reticular_a coat_n of_o the_o eye_n wherein_o they_o end_v in_o a_o infinite_a number_n of_o the_o most_o capillary_a ramification_n which_o by_o a_o injection_n of_o that_o artery_n make_v with_o mercury_n become_v very_o delightful_o conspicuous_a to_o the_o eye_n the_o nervous_a fibres_n also_o from_o the_o five_o and_o three_o pair_n of_o nerve_n do_v twine_n about_o the_o body_n of_o these_o nerve_n as_o the_o two_o abovementioned_a author_n do_v true_o affirm_v but_o how_o right_o they_o both_o assign_v to_o they_o the_o office_n of_o dilate_v and_o contract_v they_o subservient_o to_o the_o visory_a faculty_n and_o preternatural_o in_o convulsion_n of_o the_o eye_n as_o though_o these_o fibre_n be_v true_o muscle_n or_o of_o the_o carnous_a kind_n i_o refer_v to_o the_o judgement_n of_o other_o these_o go_v out_o of_o the_o skull_n at_o its_o first_o foramen_fw-la the_o three_o pair_n arise_v out_o of_o the_o forward_a and_o upper_a part_n of_o the_o annular_a process_n where_o it_o be_v contiguous_a to_o and_o cover_v with_o the_o under_o part_n of_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la come_v out_o into_o sight_n from_o between_o they_o just_o where_o that_o process_n terminate_v forward_o which_o be_v where_o the_o crura_fw-la medulla_n oblongata_fw-la come_v together_o into_o one_o body_n constitute_v the_o caudex_fw-la medulloe_o oblongatoe_n these_o run_n through_o a_o duplicature_n of_o the_o dura_n mater_n on_o the_o outside_n of_o the_o circular_a sinus_n go_v out_o of_o the_o second_o hole_n of_o the_o skull_n to_o the_o eye_n and_o be_v therefore_o call_v par_fw-fr oculorum_fw-la motorium_fw-la to_o the_o voluntary_a motion_n of_o which_o only_o they_o be_v grant_v to_o be_v subservient_fw-fr which_o see_v they_o have_v their_o original_n from_o the_o cerebellum_fw-la afford_v we_o no_o weak_a argument_n against_o the_o hypothesis_n of_o dr._n willis_n who_o have_v reserve_v that_o part_n in_o nerve_n subservient_fw-fr to_o involuntary_a motion_n only_o the_o four_o pair_n be_v very_o small_a 4._o the_o four_o pair_n ibid_fw-la 4_o 4._o come_v from_o the_o transverse_a process_n on_o the_o foreside_n of_o the_o medulla_n oblongata_fw-la behind_o the_o testes_fw-la first_o come_v in_o sight_n between_o the_o undermost_a part_n of_o the_o hinder_a lobe_n of_o the_o brain_n and_o the_o cerebellum_fw-la lateral_o cross_v that_o part_n where_o the_o annular_a process_n end_v towards_o the_o crura_fw-la medulla_n oblongata_fw-la from_o whence_o they_o pass_v into_o a_o duplicature_n of_o the_o dura_n mater_n and_o afterward_o a_o little_a more_o outward_o than_o the_o former_a go_v through_o the_o same_o second_o hole_n to_o the_o trochlear_a muscle_n of_o the_o eye_n and_o be_v call_v from_o their_o move_n of_o that_o according_a to_o the_o passion_n of_o the_o mind_n the_o pathetic_a pair_n the_o five_o pair_n be_v broad_a and_o large_a 5._o the_o five_o pair_n â—ld_v 5_o 5._o make_v up_o of_o many_o thick_a fibres_n continuous_a to_o each_o other_o some_o soft_a than_o other_o arise_v from_o the_o uppermost_a part_n of_o the_o processus_n annularis_fw-la which_o be_v backward_o lateral_o where_o it_o be_v broad_a by_o reason_n of_o the_o second_o process_n of_o the_o cerebellum_fw-la there_o enter_v it_o this_o nerve_n pair_n the_o several_a â—â—â—ches_n of_o the_o five_o pair_n after_o have_v first_o climb_v over_o the_o inner_a process_n of_o the_o os_fw-la petrosum_fw-la into_o a_o kind_n of_o a_o cavity_n make_v of_o a_o duplicature_n of_o the_o dura_n mater_n in_o that_o place_n immediate_o swell_v into_o a_o kind_n of_o a_o thickness_n call_v a_o ganglion_n b_o pro._n 3._o b_o from_o whence_o several_a branch_n be_v propagate_v lie_v betwixt_o the_o dura_n mater_n and_o the_o cranium_fw-la on_o each_o side_n the_o sella_n turcica_n without_o any_o fovea_fw-la or_o cavity_n at_o all_o go_v out_o of_o the_o skull_n at_o three_o several_a place_n e_o pro._n 3._o c_o d_o e_o its_o superior_a small_a branch_n at_o the_o second_o hole_n with_o the_o three_o and_o four_o pair_n of_o nerve_n its_o inferior_a small_a branch_n at_o the_o three_o hole_n and_o its_o posteriour_a or_o large_a branch_n at_o the_o five_o from_o the_o inside_n of_o the_o foremost_a branch_n two_o little_a one_o turn_v back_o y._n fig_n 2._o y._n and_o meet_v with_o another_o small_a branch_n a_o little_a
the_o tubulus_n venosus_fw-la between_o the_o sinus_n of_o the_o porta_n and_o the_o cava_fw-la in_o the_o liver_n as_o have_v be_v most_o sagacious_o observe_v by_o the_o late_a learned_a dr._n walter_n needham_n it_o be_v true_a that_o in_o several_a creature_n there_o be_v some_o nerve_n very_o much_o depend_v on_o the_o cerebellum_fw-la as_o be_v they_o which_o minister_n though_o in_o a_o different_a manner_n as_o have_v already_o be_v take_v notice_n of_o and_o will_v be_v hereafter_o further_o explain_v to_o the_o natural_a and_o vital_a function_n viz._n the_o par_n vagum_fw-la and_o intercostal_n pair_n and_o therefore_o the_o aforesaid_a author_n who_o be_v in_o this_o as_o in_o many_o other_o of_o his_o discovery_n very_o fortunate_a and_o high_o commendable_a make_v a_o very_a good_a guess_n when_o he_o bring_v these_o faculty_n into_o subjection_n to_o that_o part_n inasmuch_o as_o by_o several_a other_o as_o well_o as_o by_o my_o own_o experience_n upon_o live_a body_n we_o find_v that_o notwithstanding_o most_o part_n of_o the_o brain_n be_v pare_v off_o with_o a_o razor_n yea_o even_o after_o the_o medulla_n oblongata_fw-la be_v divide_v betwixt_o the_o cerebum_fw-mi and_o cerebellum_fw-la and_o take_v whole_o out_o of_o the_o cranium_fw-la the_o heart_n will_v beat_v when_o at_o the_o same_o time_n if_o the_o cerebellum_fw-la itself_o be_v but_o cut_v in_o piece_n though_o all_o the_o rest_n of_o the_o brain_n be_v keep_v entire_a the_o creature_n expire_v present_o yea_o i_o have_v see_v respiration_n which_o only_o in_o part_n depend_v on_o the_o cerebellum_fw-la total_o to_o cease_v upon_o only_a a_o sudden_a violent_a compression_n of_o that_o part_n by_o a_o blow_n and_z after_o its_o be_v wound_v the_o heart_n to_o cease_v beat_v immediate_o all_o which_o must_v of_o natural_a consequence_n fall_v out_o upon_o the_o hypothesis_n that_o those_o function_n of_o nature_n do_v depend_v on_o the_o cerebellum_fw-la for_o their_o source_n and_o influence_n which_o be_v constant_a uninterrupted_a and_o out_o of_o the_o arbitrary_a jurisdiction_n of_o the_o brain_n yet_o with_o this_o difference_n that_o in_o motion_n pure_o natural_a and_o either_o contemporary_a with_o the_o embryo_n as_o the_o first_o sign_n of_o its_o vitality_n such_o as_o be_v pulsation_n of_o the_o heart_n during_o its_o enclosure_n within_o the_o mother_n or_o supervenient_a upon_o its_o further_a growth_n and_o more_o visible_a organisation_n of_o part_n as_o the_o natural_a contraction_n of_o the_o other_o viscera_n subservient_fw-fr to_o the_o office_n of_o protrusion_n of_o the_o chyle_n separation_n of_o the_o glandular_a juice_n and_o proscription_n of_o the_o excrement_n the_o animal_n fluid_a or_o spirit_n do_v altogether_o flow_v from_o the_o cerebellum_fw-la the_o nerve_n there_o both_o descend_v from_o the_o cerebellum_fw-la and_o terminate_n in_o those_o part_n aforementioned_a whereas_o in_o respiration_n which_o i_o call_v a_o motion_n of_o supervenient_a instinct_n if_o i_o may_v be_v allow_v to_o use_v the_o word_n instinct_n in_o that_o sense_n the_o nerve_n descend_v from_o the_o cerebellum_fw-la and_o propagate_v through_o the_o lung_n from_o the_o par_fw-fr vagum_fw-la serve_v only_o to_o convey_v the_o first_o impulse_n or_o impression_n of_o the_o object_n to_o those_o part_n which_o be_v by_o nature_n frame_v and_o qualify_v to_o produce_v respiratory_n motion_n and_o those_o be_v the_o nerve_n of_o the_o spinal_a marrow_n receive_v the_o impression_n from_o the_o cerebellum_fw-la see_v that_o by_o the_o aforesaid_a experiment_n it_o appear_v plain_a that_o after_o the_o whole_a cerebrum_fw-la be_v divide_v from_o the_o cerebellum_fw-la and_o medulla_n oblongata_fw-la the_o act_n of_o respiration_n continue_v for_o a_o considerable_a time_n entrire_n which_o motion_n be_v dependent_a on_o the_o sensative_a faculty_n preside_v in_o the_o cerebellum_fw-la transmit_v the_o first_o impulse_n produce_v by_o the_o eight_o pair_n or_o parvagum_n as_o before_o observe_v and_o communicate_v thence_o to_o those_o spinal_a nerve_n which_o act_n the_o intercostal_n muscle_n and_o diaphragm_n so_o that_o all_o the_o office_n of_o the_o par_fw-fr vagum_fw-la which_o be_v propagate_v through_o the_o lung_n be_v to_o convey_v the_o impression_n from_o thence_o to_o the_o cerebellum_fw-la which_o by_o virtue_n of_o its_o connexion_n with_o the_o caudex_fw-la medullaris_fw-la from_o whence_o the_o ancient_n right_o think_v that_o part_n have_v its_o hindermost_a root_n from_o the_o cerebellum_fw-la as_o before_o take_v notice_n of_o it_o be_v able_a to_o transmit_v it_o further_o as_o the_o sensative_a faculty_n preside_v there_o shall_v direct_v and_o that_o too_o by_o the_o common_a way_n the_o medulla_n oblongata_fw-la and_o spinal_a nerve_n and_o further_o that_o this_o part_n be_v as_o capable_a thereof_o as_o the_o cerebrum_fw-la and_o be_v not_o whole_o and_o only_o depute_v for_o the_o service_n of_o such_o nerve_n or_o organ_n as_o be_v employ_v by_o the_o involuntary_a part_n or_o portion_n of_o the_o soul_n as_o dr._n willis_n will_v have_v it_o appear_v in_o that_o the_o three_o pair_n of_o nerve_n by_o he_o allow_v to_o be_v among_o the_o number_n of_o the_o other_o kind_n of_o nerve_n viz._n those_o command_v by_o the_o will_n from_o hence_o as_o have_v be_v already_o show_v have_v its_o original_n and_o here_o also_o furthermore_o give_v i_o leave_v to_o add_v by_o way_n of_o conjecture_n that_o the_o reason_n why_o the_o soul_n have_v not_o a_o equal_a command_n over_o those_o afore_o mention_v nerve_n dedicate_v to_o the_o vital_a and_o natural_a motion_n be_v the_o early_a date_n or_o commencement_n of_o the_o office_n of_o those_o nerve_n by_o which_o mean_n they_o contract_v a_o habitual_a irresistible_a influx_n much_o less_o so_o in_o those_o belong_v to_o the_o respiratory_n function_n the_o exercise_n whereof_o be_v of_o a_o late_a date_n and_o last_o the_o influx_n be_v not_o in_o the_o least_o so_o habitual_a in_o those_o other_o subservient_fw-fr to_o the_o organical_a function_n of_o the_o limb_n inasmuch_o as_o they_o be_v not_o capable_a of_o be_v exercise_v till_o a_o much_o long_a time_n after_o and_o then_o not_o so_o uninterrupted_o as_o either_o the_o first_o or_o the_o second_o but_o gradual_o and_o with_o intermission_n so_o that_o the_o only_a reason_n why_o upon_o cut_v the_o cerebellum_fw-la respiration_n cease_v be_v that_o by_o that_o mean_v its_o structure_n be_v discompose_v and_o render_v unfit_a either_o to_o receive_v or_o transmit_v the_o impression_n further_o to_o the_o aforesaid_a nerve_n which_o be_v subservient_fw-fr to_o the_o instrument_n of_o respiration_n it_o be_v true_a there_o arc_n reciprocal_a communication_n betwixt_o the_o nerve_n of_o the_o intercostal_n pair_n vertebra_n and_o diaphragm_n yet_o see_v they_o terminate_v nor_o immediate_o in_o the_o part_n of_o each_o other_o particular_a distinct_a jurisdiction_n there_o be_v no_o interchangeable_a act_n or_o office_n from_o thence_o produce_v betwixt_o they_o for_o as_o notwithstanding_o there_o be_v so_o many_o branch_n of_o nerve_n communicate_v from_o the_o spinal_a nerve_n subservient_fw-fr to_o voluntary_a motion_n to_o the_o intercostal_n pair_n on_o their_o descent_n to_o the_o viscera_n and_o yet_o by_o reason_n of_o their_o not_o terminate_n in_o those_o part_n they_o be_v not_o in_o the_o least_o able_a to_o bring_v these_o nerve_n under_o the_o command_n of_o the_o rational_a soul_n by_o which_o provident_a care_n of_o nature_n it_o so_o fall_v out_o that_o it_o be_v not_o in_o the_o power_n of_o any_o by_o misguide_a reason_n to_o act_v injurious_o to_o themselves_o so_o by_o virtue_n of_o several_a branch_n reciprocal_o communicate_v from_o the_o intercostal_n pair_n in_o its_o passage_n down_o to_o the_o viscera_n to_o the_o spinal_a nerve_n there_o be_v no_o power_n give_v to_o they_o of_o move_v the_o muscle_n to_o which_o they_o be_v subservient_fw-fr uninterrupted_o after_o the_o mere_a manner_n of_o the_o viscera_n but_o now_o to_o return_v to_o where_o we_o leave_v off_o in_o some_o creature_n it_o be_v very_o plain_a that_o nature_n have_v extend_v this_o imperial_a residence_n of_o the_o soul_n beyond_o the_o cerebellum_fw-la even_o as_o far_o as_o the_o spinalis_fw-la medulla_n have_v not_o only_o put_v this_o last_o motion_n but_o that_o of_o pulsation_n too_o under_o the_o jurisdiction_n of_o that_o elongation_n of_o the_o brain_n as_o appear_v in_o the_o famous_a experiment_n of_o the_o industrious_a caldesi_n upon_o the_o tortoise_n which_o after_o the_o head_n be_v cut_v off_o live_v and_o carry_v its_o shell_n about_o the_o space_n of_o six_o month_n beside_o which_o it_o be_v remarkable_a by_o way_n of_o digression_n according_a to_o another_o experiment_n by_o the_o aforesaid_a author_n make_v upon_o that_o creature_n that_o after_o even_o the_o heart_n and_o all_o the_o viscera_n beside_o be_v take_v out_o except_o the_o lung_n that_o creature_n to_o use_v his_o own_o expression_n be_v sound_v so_o to_o
and_o vieussenius_fw-la the_o one_o place_v the_o commune_fw-la sensorium_n in_o his_o corpora_fw-la striata_fw-la only_o the_o other_o in_o the_o superior_a and_o middle_a corpora_fw-la striata_fw-la joint_o with_o the_o centrum_fw-la ovale_fw-mi from_o both_o who_o des_fw-mi cartes_n and_o several_a other_o and_o with_o much_o more_o show_v of_o reason_n particular_o malpighius_n differ_v 2._o malpig_n de_fw-fr cereb_n p_o 11._o par_fw-fr 2._o place_v it_o in_o the_o extreme_a limit_n of_o the_o medullary_a part_n of_o the_o brain_n where_o it_o be_v continuous_a with_o the_o cineritious_a circumassused_a part_n i_o must_v confess_v that_o as_o i_o have_v not_o be_v able_a by_o the_o best_a enquiry_n i_o can_v make_v either_o into_o brain_n dissect_v whilst_o fresh_a or_o when_o boil_v in_o oil_n to_o discover_v any_o such_o actual_a configuration_n or_o disposition_n of_o part_n as_o we_o find_v so_o formal_o delineate_v by_o either_o of_o they_o but_o especial_o the_o last_o so_o 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these_o seeing_z they_o seem_v to_o have_v a_o particular_a aspect_n or_o relation_n to_o those_o nerve_n who_o original_n we_o find_v near_a they_o it_o may_v not_o be_v unreasonable_a to_o think_v they_o be_v particular_a conduit_n from_o whence_o the_o say_v nerve_n be_v furnish_v with_o animal_n fluid_a though_o at_o the_o same_o time_n we_o must_v allow_v a_o very_a free_a communication_n betwixt_o they_o all_o and_o consequent_o we_o may_v suppose_v the_o first_o of_o those_o to_o convey_v spirit_n from_o the_o globous_a medullary_n part_n of_o the_o brain_n next_o to_o it_o by_o vienssenius_n call_v the_o superior_a part_v of_o the_o centrum_fw-la ovale_n down_o to_o the_o subjacent_a medullary_n part_n of_o the_o brain_n to_o augment_v those_o which_o be_v produce_v low_a and_o particular_o for_o the_o service_n of_o the_o olfactory_a and_o visory_a nerve_n which_o last_o have_v more_o eminent_o its_o supply_n from_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la the_o second_o sort_n or_o the_o transverse_n striae'_v of_o the_o corpus_fw-la callosum_fw-la to_o convey_v a_o additional_a supplement_n by_o way_n of_o the_o wreathe_a tract_n in_o the_o hinder_a column_n of_o the_o fornix_n to_o the_o crura_fw-la medulla_n oblongata_fw-la where_o they_o become_v continuous_a to_o the_o reflexed_a part_n of_o the_o lateral_a ventricles_n backward_o for_o the_o service_n also_o of_o the_o aforesaid_a two_o pair_n of_o nerve_n but_o more_o particular_o to_o those_o arise_v low_a either_o on_o the_o annular_a process_n or_o caudex_fw-la medullaris_fw-la those_o of_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la and_o natiform_a process_n the_o first_o of_o which_o lie_v upon_o and_o be_v continuous_a to_o the_o subjacent_a medullary_n part_n of_o the_o crura_fw-la medulla_n oblongata_fw-la the_o other_o to_o the_o caudex_fw-la medullaris_fw-la may_v be_v suppose_v to_o derive_v spirit_n on_o the_o behalf_n of_o those_o nerve_n which_o spring_v from_o any_o adjacent_a part_n whether_o on_o this_o or_o the_o other_o side_n of_o the_o annular_a process_n or_o caudex_fw-la medullaris_fw-la and_o of_o this_o sort_n be_v the_o optic_a nerve_n which_o be_v supply_v immediate_o from_o the_o first_o of_o those_o medullary_a prominency_n and_o not_o unlikely_a from_o those_o fair_a medullary_n tract_n aforementioned_a run_v from_o the_o root_n of_o the_o fornix_n extend_v themselves_o all_o the_o way_n between_o the_o corpora_fw-la striata_fw-la and_o thalami_fw-la nervorum_fw-la opticorum_fw-la in_o which_o last_o at_o length_n they_o be_v obliterate_v the_o three_o fifth_z sixth_z and_z first_o or_o hard_a branch_n of_o the_o auditory_a nerve_n mediate_o by_o continuity_n of_o they_o with_o the_o annular_a protuberance_n to_o all_o which_o the_o other_o or_o lesser_a medullary_n prominency_n call_v nates_n by_o virtue_n of_o their_o continuity_n with_o the_o subjacent_a part_n may_v be_v suppose_v to_o contribute_v something_o also_o and_o these_o seem_v to_o be_v better_o provide_v for_o than_o the_o rest_n of_o the_o nerve_n inasmuch_o as_o beside_o this_o way_n of_o be_v supply_v from_o the_o cerebrum_fw-la they_o have_v also_o another_o very_a visible_a and_o much_o large_a from_o the_o second_o process_n of_o the_o cerebellum_fw-la of_o which_o the_o annular_a protuberance_n be_v make_v and_o this_o seem_o not_o without_o a_o provident_a design_n of_o nature_n see_v the_o nerve_n which_o be_v derive_v thence_o be_v much_o large_a and_o have_v a_o great_a task_n of_o service_n lay_v upon_o they_o than_o any_o other_o of_o the_o whole_a brain_n as_o have_v also_o the_o par_fw-fr vagum_fw-la or_o eight_o pair_n which_o therefore_o by_o virtue_n of_o its_o insertion_n between_o the_o chordal_n or_o three_o process_n of_o the_o cerebellum_fw-la and_o corpus_fw-la olivare_fw-la and_o not_o according_a to_o dr._n willis_n from_o the_o point_n or_o extremity_n of_o the_o corpora_fw-la pyramidalia_n have_v a_o double_a tribute_n of_o spirit_n one_o from_o the_o caudex_fw-la medullaris_fw-la or_o cerebrum_fw-la the_o other_o from_o the_o cerebellum_fw-la and_o to_o this_o end_n or_o great_a service_n it_o look_v as_o though_o this_o
process_n be_v furnish_v with_o such_o a_o texture_n as_o it_o appear_v to_o have_v of_o strong_a large_a medullary_a striae_n capable_a of_o receive_v and_o contain_v a_o supply_n from_o both_o fountain_n whence_o it_o may_v not_o be_v unseasonable_a to_o remark_n that_o not_o without_o show_n of_o good_a reason_n i_o have_v all-along_a assert_v the_o propriety_n of_o the_o brain_n to_o those_o nerve_n in_o part_n allow_v by_o dr._n willis_n to_o be_v no_o further_o affect_v by_o any_o impression_n of_o the_o brain_n than_o as_o first_o convey_v from_o it_o into_o the_o province_n of_o the_o cerebellum_fw-la and_o consequent_o to_o depend_v immediate_o on_o this_o last_o for_o influence_n entire_o in_o order_n to_o convey_v animal_n spirit_n to_o those_o part_n wherein_o they_o be_v insert_v upon_o the_o caudex_fw-la medullaris_fw-la on_o its_o under_o side_n contiguous_a to_o the_o hinder_a extremity_n of_o the_o annular_a process_n be_v situate_v the_o corpora_fw-la pyramidalia_n 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s_o s_o part_n of_o the_o 2d_o process_n or_o podunculi_n of_o the_o cerebellum_fw-la **_o the_o spinal_a accessary_a nerve_n fig_n ii_o show_v the_o internal_a basis_n of_o the_o cranium_fw-la the_o sinus_n be_v inject_v with_o wax_n a_o a_o the_o edge_n of_o the_o skull_n b_o b_o the_o dura_n mater_n upon_o the_o bottom_n of_o the_o skull_n c_o c_o the_o lateral_a sinus_n d_o d_o the_o superior_a long_o and_o narrow_a sinus_n e_o e_o the_o inferior_a short_a and_o wide_a sinus_n f_o the_o process_n of_o the_o bone_n cribriforme_a call_v crista_n galli_n g_o g_o some_o small_a descend_v branch_n of_o vein_n upon_o the_o bottom_n of_o the_o dura_n mater_n h_z h_z the_o first_o branch_n of_o artery_n proper_a to_o the_o d._n mater_n i_o i_o the_o second_o branch_n of_o artery_n belong_v to_o the_o dura_n mater_n k_o the_o three_o branch_n belong_v to_o the_o dura_n mater_n l_o the_o last_o hole_n of_o the_o skull_n m_o m_o several_a vein_n communicate_v with_o the_o inferior_a short_a sinus_n n_z part_v of_o the_o os_fw-la jugale_fw-la o_o o_o the_o os_fw-mi ethmoeid_n where_o the_o first_o pair_n of_o nerve_n or_o mammillary_a process_n go_v forth_o p_o p_o the_o optic_a nerve_n cut_v off_o q_o q_o the_o carotid_v artery_n cut_v off_o r_o the_o three_o pair_n of_o nerve_n vissible_a only_o on_o one_o side_n s_o s_o the_o four_o pair_n of_o nerve_n turn_v up_o t_o t_o the_o five_o pair_n of_o nerve_n on_o one_o side_n expanded_a before_o it_o be_v divide_v into_o its_o three_o branch_n on_o the_o other_o side_n whole_a which_o nerve_n with_o its_o three_o branch_n be_v express_v in_o the_o three_o figure_n v_o it_o be_v foremost_a superior_a branch_n on_o the_o left_a side_n go_v out_o at_o the_o second_o hole_n of_o the_o skull_n w_o the_o six_o pair_n of_o nerve_n x_o the_o intercostal_n nerve_n in_o this_o subject_a proceed_n from_o two_o branch_n of_o the_o five_o nerve_n join_v with_o the_o body_n of_o the_o six_o nerve_n y_fw-fr two_o branch_n of_o the_o five_o pair_n of_o nerve_n in_o this_o subject_n run_v almost_o close_o to_o the_o 6_o pair_n be_v partly_o the_o root_n of_o the_o intercostal_n nerve_n which_o creep_v out_o of_o the_o skull_n under_o and_o between_o the_o coat_n of_o the_o carotid_v artery_n z_o z_o the_o body_n of_o the_o carotid_v artery_n after_o it_o have_v enter_v the_o cranium_fw-la 1_o 1_o the_o glandula_n pituitaria_fw-la 2_o 2_o the_o circular_a sinus_n 3_o the_o infundibulum_fw-la 4_o 4_o the_o frontal_n artery_n 5_o the_o place_n where_o the_o lateral_a sinus_n begin_v to_o be_v declive_a and_o tortuous_a 6_o the_o dura_n mater_n raise_v and_o recline_v to_o show_v the_o subjacent_a nerve_n 7_o 7_o the_o seven_o or_o auditory_a nerve_n 8_o 8_o the_o eight_o pair_n or_o par_fw-fr vagum_fw-la 9_o 9_o the_o nine_o pair_n fig_n iii_o be_v the_o five_o nerve_n with_o its_o branch_n whilst_o within_o the_o cranium_fw
a_o it_o be_v trunk_n b_o it_o be_v ganglion_n c_o it_o be_v first_o or_o superior_a branch_n go_v out_o at_o the_o second_o hole_n of_o the_o cranium_fw-la d_o its_o second_o or_o middle_a branch_n go_v out_o at_o the_o second_o hole_n e_o its_o three_o or_o hindermost_a branch_n go_v out_o at_o the_o five_o hole_n fig_n iv_o show_v the_o superior_a and_o lateral_a sinus_n of_o the_o dura_n mater_n open_v after_o they_o have_v be_v inject_v with_o wax_n a_o a_o the_o three_o or_o longitudinal_n sinus_n b_o b_o the_o first_o and_o second_o or_o lateral_a sinus_n c_o the_o four_o sinus_n d_o d_o d_o a_o vein_n run_v on_o each_o side_n of_o the_o three_o sinus_n eeee_o mouth_n of_o vein_n open_v into_o the_o longitudinal_n sinus_n of_o the_o dura_n mater_n after_o a_o contrary_a manner_n one_o to_o the_o other_o f_o f_o the_o five_o sinus_n at_o the_o bottom_n of_o the_o falx_n g_o the_o torcular_a where_o all_o the_o superior_a and_o lateral_a sinus_n meet_v h_z h_z the_o tortuous_a part_n of_o the_o lateral_a sinus_n run_v under_o the_o cerebellum_fw-la i_o i_o the_o vein_n enter_v the_o four_o sinus_n from_o the_o plexus_fw-la choroeides_n k_o the_o place_n where_o the_o four_o sinus_n arise_v **_o the_o specus_fw-la or_o round_a hole_n at_o which_o the_o lateral_a sinus_n on_o each_o side_n go_v out_o into_o the_o internal_a jugular_a vein_n l_o l_o two_o large_a vein_n whereof_o one_o enter_v the_o four_o sinus_n upon_o the_o second_o process_n of_o the_o dura_n mater_n so_o as_o to_o resist_v the_o course_n of_o the_o blood_n in_o that_o sinus_n in_o its_o ascent_n to_o the_o torcular_a the_o other_o upon_o the_o same_o process_n so_o as_o to_o hinder_v its_o descent_n to_o the_o internal_a jugular_a contrary_a to_o a_o conformation_n of_o vessel_n which_o vieussenius_fw-la mention_n in_o his_o three_o table_n h_n h._n mmm_o transverse_n chordal_a ligament_n in_o the_o longitudinal_n and_o lateral_a sinus_n n_z n_z part_n of_o the_o dura_n mater_n on_o each_o side_n of_o the_o longitudinal_n sinus_n o_o o_o portion_n of_o the_o pia_fw-la mater_fw-la pp_n &c_n &c_n divers_a small_a vein_n on_o the_o dura_n mater_n which_o enter_v those_o that_o run_v on_o the_o side_n of_o the_o longitudinal_n sinus_n according_a to_o its_o length_n qq_n &c_n &c_n the_o vein_n of_o the_o cerebrum_fw-la as_o they_o appear_v under_o the_o pia_fw-la mater_fw-la before_o they_o enter_v the_o longitudinal_n sinus_n r_o r_o the_o falcate_v process_n with_o its_o vein_n which_o enter_v the_o five_o sinus_n s_o s_o the_o second_o process_n of_o the_o dura_n mater_n †_o †_o the_o beginning_n of_o the_o jugular_a vein_n fig_n v._o represent_v the_o brain_n in_o a_o middle_a section_n the_o blood-vessel_n be_v first_o inject_v with_o wax_n a_o a_o the_o fornix_n cut_v off_o at_o its_o root_n and_o turn_v back_o b_o b_o its_o root_n at_o the_o begin_n of_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la cc_o etc._n etc._n the_o thalami_fw-la nervorum_fw-la opticorum_fw-la d_o d_o that_o part_n of_o the_o crura_fw-la fornicis_fw-la which_o grow_v somewhat_o thick_a as_o it_o turn_v off_o towards_o the_o lateral_a ventricles_n run_v over_o the_o crura_fw-la medulla_n oblongata_fw-la which_o be_v very_o prominent_a in_o sheep_n and_o calf_n help_v to_o thrust_v it_o up_o into_o such_o a_o protuberance_n as_o the_o ancient_n call_v bombyces_fw-la or_o hyppocampi_fw-la e_o e_o that_o part_n of_o the_o plexus_fw-la choroeides_n which_o be_v make_v of_o the_o first_o branch_n of_o the_o cervical_a artery_n sometime_o seem_v as_o though_o it_o come_v from_o the_o communicant_a branch_n in_o the_o lateral_a ventricles_n f_o the_o place_n where_o those_o two_o plexus_n on_o each_o side_n meet_v under_o the_o fornix_n g_o g_o that_o other_o part_n of_o the_o plexus_fw-la which_o be_v make_v of_o the_o second_o branch_n of_o the_o cervical_a artery_n join_v with_o the_o first_o by_o a_o communicant_a branch_n not_o to_o be_v see_v here_o lie_v under_o the_o crura_fw-la fornicis_fw-la which_o be_v expanded_a all_o over_o the_o isthmus_n become_v glandulous_a near_o to_o and_o especial_o under_o the_o â—â—aâ—dâ—la_fw-la pinealis_fw-la cover_v here_o with_o the_o fornix_n h_z h_z two_o large_a vein_n come_v from_o the_o top_n of_o the_o upper_a part_n of_o the_o plexus_fw-la down_o to_o the_o other_o branch_n of_o the_o plexus_fw-la all_o the_o length_n of_o the_o three_o ventricle_n and_o then_o terminate_v in_o the_o the_o four_o sinus_n i_o i_o the_o trunk_n of_o several_a artery_n appear_v as_o they_o be_v cut_v off_o in_o divide_v the_o medullary_n †_o and_o cineritious_a *_o part_n of_o the_o brain_n k_o k_o a_o venous_a branch_n of_o each_o side_n enter_v the_o plexus_fw-la choroeides_n from_o whence_o there_o be_v many_o slip_v branch_v upon_o the_o corpora_fw-la striata_fw-la δ_n δ_n the_o corpora_fw-la striata_fw-la whole_a l_o the_o rima_n of_o the_o three_o ventricle_n m_o m_o a_o long_a medullary_n tract_n between_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la and_o corpora_fw-la striata_fw-la nn_n etc._n etc._n the_o centrum_fw-la ovale_n of_o vieussenius_fw-la o_o the_o four_o sinus_n of_o the_o dur._n mater_n p_o the_o torcular_a where_o the_o four_o and_o sometime_o five_o sinus_n meet_a q_o q_o the_o lateral_a sinus_n r_o a_o large_a vein_n enter_v the_o lat._n sinus_n on_o one_o side_n ss_z etc._n etc._n the_o cerebellum_fw-la cover_v with_o the_o second_o process_n of_o the_o dura_n mater_n on_o its_o uppermost_a part_n t_o t_o the_o vertebral_n artery_n v_o five_o the_o vertebral_n sinus_n w_n the_o medulla_n spinalis_fw-la with_o its_o integument_n x_o x_o the_o style_n support_v the_o large_a vein_n of_o the_o plexus_fw-la choroeides_n in_o the_o three_o ventricle_n q_o q_o the_o lymphduct_n of_o the_o plexus_fw-la choroeides_n y_fw-fr y_fw-fr two_o of_o the_o cervical_a nerve_n spring_v from_o the_o medulla_n oblongata_fw-la †_o †_o etc._n etc._n the_o medullary_a part_n of_o the_o brain_n **_o etc._n etc._n the_o cineritious_a part_n fig_n vi_o be_v a_o draught_n of_o the_o annular_a protuberance_n med._n spinalis_fw-la etc._n etc._n cut_v through_o the_o middle_a lengthway_n a_o a_o the_o crura_fw-la medulla_n oblongata_fw-la b_o b_o the_o annular_a process_n or_o pons_n varolii_n divide_v c_o c_o the_o transverse_a striae_fw-la e_o e_o the_o intervening_a medullary_n tract_n in_o which_o the_o striae_fw-la terminate_v on_o each_o side_n f_o f_o the_o three_o or_o chordal_a process_n of_o dr._n willis_n h_o the_o spinal_a marrow_n i_o i_o some_o part_n of_o the_o cerebellum_fw-la k_o k_o the_o second_o process_n of_o the_o cerebellum_fw-la which_o compose_v the_o annular_a protuberance_n l_o l_o the_o cineritious_a part_n of_o the_o medulla_n oblongata_fw-la fig_n vii_o be_v the_o cerebellum_fw-la cut_v through_o on_o its_o hinder_a part_n and_o recline_v lateral_o a_o a_o the_o cerebellum_fw-la b_o b_o the_o arboreous_a ramification_n of_o the_o meditallium_n of_o the_o cerebellum_fw-la appear_v be_v cut_v right_o downward_o c_o c_o the_o pathetic_a nerve_n c_o c_o the_o nates_n d_o d_o the_o testes_fw-la e_o the_o transverse_a process_n whence_o the_o pathetic_a pair_n have_v their_o original_n f_o the_o glandula_n pinealis_fw-la g_o g_o the_o first_o process_n of_o the_o cerebellum_fw-la run_v from_o it_o to_o the_o nates_n here_o extend_v lateral_o h_z h_z the_o three_o or_o chordal_a process_n i_o i_o the_o transverse_a medullary_n process_n in_o the_o 4_o vent_n from_o whence_o the_o soft_a branch_n of_o the_o 7_o n._n have_v it_o original_n k_o k_o the_o medullary_a process_n descend_v from_o the_o transverse_a process_n behind_o the_o testes_fw-la down_o to_o the_o aforementioned_a other_o medullary_n transverse_a process_n l_o l_o the_o original_n of_o that_o process_n a_o little_a too_o low_a m_o m_o the_o eight_o pair_n of_o nerve_n n_z the_o calamus_fw-la script_n or_o extremity_n of_o the_o four_o ventricle_n of_o the_o spinal_a marrow_n p_o p_o the_o accessary_a nerve_n q_o q_o the_o ten_o pair_n of_o nerve_n the_o table_n a_o artery_n carotid_n and_o the_o manner_n of_o its_o entrance_n into_o and_o distribution_n through_o the_o brain_n page_n 32_o 33._o where_o it_o part_n with_o its_o borrow_a coat_n p._n 33_o artery_n vertebral_n and_o its_o manner_n of_o entrance_n and_o distribution_n p._n 35_o artery_n cervical_a ibid._n why_o not_o conical_a p._n 38_o the_o communicant_a branch_n of_o artery_n p._n 36_o their_o use_n and_o benefit_n ibid._n &_o 37_o a_o small_a branch_n of_o artery_n not_o before_o observe_v p._n 38_o why_o the_o artery_n of_o the_o brain_n enter_v not_o the_o cranium_fw-la with_o the_o vein_n p._n 27_o artery_n spinal_a how_o the_o blood_n be_v force_v into_o it_o p._n 37_o animal_n spirit_n how_o more_o plentiful_o produce_v p._n 54_o anatomy_n comparative_a its_o use_n p._n 54_o artery_n why_o their_o ramification_n be_v over-proportionable_a to_o the_o trunk_n in_o the_o brain_n p._n 55_o the_o use_n of_o the_o narrowness_n of_o the_o communicant_a branch_n p._n 56_o how_o the_o carotid_n artery_n in_o brute_n come_v to_o be_v small_a above_o the_o dura_n mater_n than_o under_o it_o p._n 65_o animal_n fluid_a what_o p._n 91_o 108_o &_o 155_o how_o it_o pass_v out_o of_o the_o carnous_a fibres_fw-fr p._n 109_o its_o effect_n in_o glandulous_a and_o other_o part_n not_o
artery_n unless_o the_o artery_n they_o accompany_v discharge_v their_o blood_n into_o the_o sinuss_n which_o as_o hereafter_o shall_v be_v show_v they_o plain_o do_v not_o for_o otherwise_o see_v they_o both_o grow_v capillary_a in_o their_o ascent_n from_o the_o basis_n of_o the_o cranium_fw-la they_o must_v necessary_o be_v both_o adductory_n vessel_n than_o which_o by_o the_o law_n of_o circulation_n there_o can_v be_v no_o great_a a_o absurdity_n wepfer_n not_o know_v of_o these_o vein_n be_v force_v to_o think_v and_o consequent_o to_o affirm_v that_o the_o artery_n leave_v the_o dura_n mater_n in_o their_o extremity_n and_o terminate_v in_o the_o pia_fw-la mater_fw-la and_o so_o have_v their_o blood_n reduce_v by_o the_o vein_n there_o but_o this_o be_v evident_o not_o so_o to_o the_o eye_n of_o any_o who_o heedful_o separate_v this_o membrane_n from_o the_o other_o before_o therefore_o i_o proceed_v to_o the_o description_n of_o the_o blood-vessel_n belong_v to_o the_o brain_n itself_o which_o by_o the_o exactness_n of_o method_n i_o ought_v to_o do_v i_o hope_v it_o may_v be_v pardonable_a if_o i_o make_v a_o short_a enquiry_n after_o the_o unaccustomed_a distribution_n of_o blood-vessel_n nature_n have_v furnish_v the_o brain_n in_o general_n with_o and_o the_o reason_n of_o its_o procedure_n therein_o the_o truth_n then_o concern_v this_o affair_n be_v that_o contrary_a to_o what_o have_v hitherto_o be_v observe_v the_o blood-vessel_n belong_v to_o this_o part_n in_o general_n as_o have_v already_o be_v observe_v be_v of_o two_o sort_n the_o one_o belong_v to_o the_o brain_n itself_o the_o other_o to_o its_o outmost_a integument_n now_o as_o to_o the_o first_o it_o be_v observable_a that_o the_o vein_n enter_v not_o the_o brain_n nor_o run_v concomitant_o like_v as_o in_o other_o part_n of_o the_o body_n with_o the_o artery_n the_o carotid_v enter_v at_o the_o four_o hole_n in_o the_o basis_n of_o the_o skull_n and_o the_o internal_a jugular_a at_o the_o eight_o the_o vertebral_n artery_n at_o the_o last_o and_o large_a hole_n of_o the_o skull_n and_o the_o vertebral_n vein_n at_o the_o nine_o which_o vieussenius_fw-la mistaken_o call_v the_o ten_o through_o which_o it_o run_v into_o the_o internal_a jugular_a 3._o vieâ—ssen_n p._n 163._o par_fw-fr 3._o at_o that_o vein_n entrance_n into_o the_o round_a hole_n at_o the_o bottom_n of_o the_o skull_n under_o the_o styliform_a process_n where_o the_o sinus_n lateralis_fw-la meet_v it_o where_o after_o have_v advance_v into_o certain_a venous_a production_n call_v sinus_n they_o descend_v from_o thence_o in_o large_a trunk_n grow_v capillary_n all-along_a in_o their_o passage_n till_o they_o meet_v the_o extremity_n of_o the_o artery_n and_o be_v indeed_o no_o other_o than_o mere_a branch_n of_o the_o sinus_n and_o consequent_o i_o look_v upon_o the_o sinus_n themselves_o no_o other_o than_o large_a vein_n the_o common_a reason_n all_o modern_a author_n give_v for_o this_o different_a distribution_n of_o blood-vessel_n belong_v to_o the_o brain_n from_o the_o other_o part_n of_o the_o body_n be_v that_o it_o may_v receive_v a_o equal_a warmth_n at_o the_o top_n as_o at_o the_o bottom_n as_o be_v thereby_o very_o much_o assist_v in_o the_o production_n of_o animal_n spirit_n in_o a_o equal_a proportion_n all_o over_o and_o that_o it_o be_v so_o may_v very_o well_o be_v grant_v but_o that_o nature_n have_v yet_o another_o provident_a intention_n will_v be_v as_o evident_a if_o we_o consider_v that_o if_o the_o vein_n have_v ascend_v with_o the_o artery_n through_o the_o hole_n in_o the_o bottom_n of_o the_o cranium_fw-la upon_o all_o great_a ebulition_n of_o the_o blood_n the_o pulsation_n of_o the_o artery_n will_v in_o that_o stricture_n of_o the_o vessel_n make_v by_o the_o bone_n of_o necessity_n hinder_v the_o freedom_n of_o its_o return_n by_o the_o vein_n and_o consequent_o occasion_v a_o stagnation_n of_o blood_n through_o the_o whole_a brain_n to_o the_o utter_a subversion_n of_o all_o its_o faculty_n nothing_o be_v more_o certain_a than_o that_o upon_o any_o considerable_a abatement_n of_o circulation_n there_o present_o happen_v by_o way_n of_o restagnation_n a_o secession_n of_o the_o watery_a and_o thin_a from_o the_o more_o gross_a and_o red_a part_n of_o the_o blood_n the_o other_o way_n of_o the_o vein_n enter_v the_o brain_n viz._n those_o appertain_v to_o its_o outward_a integument_n one_o at_o the_o six_o hole_n of_o the_o basis_n of_o the_o cranium_fw-la the_o other_o at_o the_o eight_o as_o aforesaid_a be_v their_o ascent_n with_o the_o artery_n after_o a_o quite_o different_a manner_n from_o the_o former_a even_o to_o their_o capillary_a extremity_n a_o manifest_a indication_n that_o they_o serve_v for_o the_o reduction_n of_o so_o much_o blood_n from_o the_o dura_n mater_n as_o the_o aforesaid_a sort_n of_o vessel_n the_o artery_n have_v bring_v thither_o and_o although_o by_o reason_n of_o their_o smallness_n nature_n seem_v not_o to_o have_v be_v so_o solicitous_a in_o avoid_v the_o inconvenience_n suppose_v to_o have_v follow_v upon_o the_o artery_n enter_v the_o same_o hole_n with_o the_o vein_n take_v notice_n of_o in_o the_o precede_a case_n where_o they_o be_v very_o large_a and_o consequent_o the_o effect_n may_v prove_v much_o more_o injurious_a yet_o nature_n have_v not_o be_v want_v in_o provide_v a_o remedy_n against_o it_o as_o will_v plain_o appear_v in_o the_o follow_a page_n from_o this_o manner_n of_o their_o enter_v the_o brain_n at_o the_o same_o inlet_n of_o the_o skull_n with_o the_o artery_n may_v for_o aught_o i_o know_v be_v very_o rational_o account_v for_o that_o violent_a troublesome_a noise_n which_o many_o in_o distemper_n arise_v from_o the_o turgescency_n of_o the_o blood_n cause_v a_o preternatural_a beat_n of_o the_o artery_n do_v so_o much_o complain_v of_o a_o symptom_n happen_v from_o the_o stricture_n before_o mention_v which_o the_o unyield_a circumference_n of_o the_o bone_n occasion_n upon_o the_o different_a blood-vessel_n enter_v at_o one_o and_o the_o same_o foramen_fw-la to_o which_o effect_n also_o the_o nearness_n of_o the_o os_fw-la petrosum_fw-la through_o which_o the_o hear_a nerve_n do_v pass_v to_o this_o hole_n which_o be_v in_o that_o part_n of_o the_o wedglike_a bone_n that_o join_v to_o or_o be_v conterminous_a with_o it_o do_v not_o a_o little_a contribute_v to_o the_o same_o cause_n in_o some_o measure_n doubtless_o may_v be_v ascribe_v the_o frequent_a headach_n happen_v in_o fever_n the_o artery_n then_o so_o swell_v and_o compress_v the_o vein_n against_o the_o edge_n of_o the_o bone_n that_o the_o blood_n can_v be_v return_v back_o through_o it_o in_o a_o due_a proportion_n and_o consequent_o by_o its_o stagnation_n the_o membrane_n become_v inflame_v and_o painful_a so_o that_o conformable_a to_o what_o have_v already_o be_v take_v notice_n of_o concern_v the_o wise_a contrivance_n of_o nature_n in_o order_v the_o different_a distribution_n of_o the_o blood-vessel_n so_o as_o to_o avoid_v the_o inconvenience_n which_o may_v accrue_v to_o the_o brain_n by_o compression_n of_o the_o reductory_n vessel_n occasion_v through_o their_o entrance_n at_o one_o and_o the_o same_o hole_n with_o the_o artery_n it_o seem_v very_o much_o worth_a our_o observe_n that_o beside_o the_o vein_n of_o the_o dura_n mater_n which_o enter_v the_o cranium_fw-la together_o with_o the_o artery_n as_o have_v before_o be_v mention_v there_o be_v also_o several_a other_o belong_v to_o this_o membrane_n have_v their_o rise_n at_o and_o their_o descent_n after_o a_o very_a remarkable_a manner_n from_o a_o vein_n hereafter_o to_o be_v describe_v on_o each_o side_n of_o the_o longitudinal_n sinus_n as_o you_o may_v see_v in_o the_o figure_n etc._n fig_n 4._o dd_n nn_n etc._n etc._n and_o consequent_o must_v grow_v capillary_n in_o their_o descent_n down_o from_o it_o after_o a_o quite_o contrary_a manner_n to_o the_o other_o and_o these_o do_v visible_o inosculate_v with_o some_o of_o the_o extremity_n of_o the_o aforesaid_a capillary_a artery_n after_o the_o same_o manner_n as_o those_o large_a vein_n belong_v to_o the_o pia_fw-la mater_fw-la do_v with_o the_o artery_n belong_v to_o the_o brain_n and_o it_o by_o which_o mean_v it_o so_o fall_v out_o that_o a_o considerable_a part_n of_o that_o blood_n bring_v up_o by_o the_o meninx_n artery_n be_v carry_v back_o by_o these_o vein_n to_o the_o end_n that_o especial_o in_o all_o preternatural_a swell_n of_o the_o blood_n the_o inconvenience_n of_o compression_n and_o all_o its_o ill_a consequence_n happen_v by_o reason_n of_o a_o overfulness_n of_o these_o vessel_n may_v be_v in_o a_o great_a measure_n avoid_v chap._n iu._n of_o the_o vein_n belong_v to_o the_o brain_n itself_o after_o this_o short_a digression_n by_o order_n of_o method_n the_o blood-vessel_n belong_v proper_o to_o the_o brain_n itself_o fall_v under_o consideration_n the_o curious_a
the_o plexus_fw-la on_o each_o side_n the_o second_o original_a be_v from_o the_o hindermost_a branch_n of_o that_o communicant_a artery_n ee_fw-fr fig_n 1._o second_v ee_fw-fr which_o run_v more_o backward_o ascend_v betwixt_o the_o hinder_a limb_n of_o the_o brain_n and_o the_o cerebellum_fw-la till_o it_o come_v to_o the_o isthmus_n where_o communicate_v with_o the_o first_o branch_n abovementioned_a they_o make_v a_o reticular_a broad_a expansion_n which_o cover_v both_o nates_n testes_fw-la and_o glandula_n pinealis_fw-la gg_n fig_n 5._o gg_n and_o constitute_v the_o second_o or_o other_o part_n of_o the_o plexus_fw-la choroeides_n the_o first_o branch_n begin_v to_o divide_v itself_o into_o divers_a network_n folding_n intersperse_v with_o gland_n somewhat_o what_o before_o it_o enter_v the_o ventricles_n 5._o ibid._n 5._o and_o continue_v such_o to_o its_o extremity_n on_o each_o side_n where_o they_o both_o under_o the_o fornix_n wind_n across_o the_o three_o ventricle_n into_o a_o mutual_a inosculation_n the_o second_o begin_v to_o assume_v the_o same_o shape_n or_o contexture_n as_o soon_o as_o it_o begin_v to_o enter_v the_o isthmus_n continue_v such_o throughout_o its_o entire_a abovementioned_a expansion_n these_o two_o on_o each_o side_n be_v join_v together_o by_o a_o twofold_a connexion_n the_o first_o be_v by_o a_o artery_n run_v under_o the_o bombyces_fw-la intervening_a betwixt_o they_o which_o can_v not_o be_v here_o insert_v so_o as_o to_o come_v in_o view_n the_o second_o be_v by_o a_o production_n of_o the_o pia_fw-la mater_fw-la which_o be_v extend_v all_o over_o these_o part_n of_o the_o lateral_a ventricles_n and_o the_o three_o ventricle_n which_o lie_v betwixt_o the_o first_o two_o part_n of_o the_o plexus_fw-la forward_o and_o down_o to_o the_o other_o two_o hinder_v part_n of_o the_o plexus_fw-la backward_o under_o the_o fornix_n and_o septum_fw-la lucidum_fw-la so_o that_o whatsoever_o water_n be_v transmit_v out_o of_o these_o ventricles_n must_v slip_v down_o not_o only_o under_o the_o fornix_n but_o that_o membranous_a production_n itself_o from_o which_o kind_n of_o structure_n and_o position_n of_o this_o membrane_n may_v probable_o be_v understand_v how_o there_o may_v happen_v such_o a_o hydrocephalus_n as_o the_o learned_a tulpius_n mention_n 24_o tulp_n lib._n 1._o cap._n 24_o in_o which_o there_o be_v find_v above_o two_o pound_n of_o water_n in_o one_o ventricle_n without_o any_o at_o all_o in_o the_o other_o and_o such_o another_o as_o wepfer_n mention_n 69_o wepf._n p._n 69_o where_o the_o water_n cause_v the_o hydrocephalus_n in_o a_o heifer_n be_v find_v contain_v in_o a_o cystis_n and_o that_o only_a in_o the_o left_a ventricle_n too_o for_o suppose_v this_o membranous_a production_n of_o the_o pia_fw-la mater_fw-la to_o be_v double_a here_o as_o it_o certain_o be_v in_o all_o other_o place_n it_o be_v not_o difficult_a to_o conceive_v that_o the_o water_n which_o be_v extravasated_a must_v needs_o insinuate_v itself_o betwixt_o the_o two_o lamina_n till_o by_o a_o continual_a increase_n it_o extend_v they_o into_o the_o shape_n of_o a_o large_a bladder_n such_o a_o one_o as_o the_o latter_a find_v there_o and_o draw_v out_o with_o his_o finger_n and_o that_o which_o seem_v to_o put_v out_o of_o all_o controversy_n that_o it_o be_v so_o be_v that_o in_o those_o place_n both_z above_z towards_o the_o corpus_fw-la callosum_fw-la and_o below_o on_o the_o basis_n of_o the_o ventricle_n he_o find_v some_o sort_n of_o asperity_n as_o though_o the_o bladder_n fill_v with_o water_n have_v be_v cover_v with_o some_o small_a protuberance_n not_o much_o unlike_a to_o white_a poppy-seed_n in_o those_o place_n where_o it_o be_v contiguous_a to_o they_o which_o protuberance_n doubtless_o be_v the_o small_a gland_n interspersed_a quite_o through_o this_o plexus_fw-la how_o this_o distemper_n come_v to_o be_v on_o one_o side_n only_o though_o sometime_o it_o be_v on_o both_o as_o you_o may_v see_v in_o another_o place_n of_o the_o aforesaid_a tulpius_n may_v likely_a enough_o be_v from_o a_o adnascency_n of_o both_o the_o lamina_n of_o this_o membranous_a production_n 1._o willis_n p._n 10_o col_fw-fr 2._o par_fw-fr 1._o in_o that_o place_n where_o the_o septum_fw-la lucidum_fw-la sink_v down_o from_o the_o fornix_n occasion_v by_o some_o small_a sort_n of_o pressure_n of_o the_o superincumbent_a brain_n beside_o these_o vein_n which_o be_v very_o true_o describe_v by_o willis_n i_o have_v always_o find_v two_o more_o meet_v the_o foremost_a extremity_n of_o this_o plexus_fw-la from_o between_o the_o two_o first_o lobe_n of_o the_o brain_n where_o it_o seem_v to_o end_v under_o the_o foremost_a part_n of_o the_o corpora_fw-la striata_fw-la by_o which_o it_o be_v there_o fix_a and_o as_o it_o be_v keep_v in_o its_o due_a situation_n and_o from_o these_o branch_n be_v on_o each_o side_n send_v forth_o many_o more_o little_a one_o to_o the_o corpora_fw-la striata_fw-la and_o several_a other_o part_n adjacent_a to_o this_o plexus_fw-la belong_v also_o vein_n which_o from_o the_o extremity_n of_o that_o part_n of_o it_o in_o the_o lateral_a ventricles_n begin_v to_o come_v into_o two_o distinct_a pretty_a large_a trunk_n hh_n fig_n 5._o hh_n run_v down_o through_o the_o middle_n of_o the_o three_o ventricle_n as_o far_o as_o the_o four_o sinus_n and_o there_o receive_v some_o branch_n from_o the_o other_o hinder_a part_n of_o the_o plexus_fw-la spread_v over_o the_o isthmus_n discharge_v the_o refluent_a blood_n into_o that_o sinus_n but_o beside_o this_o sort_n of_o reductory_n vessel_n qq_n ibid._n qq_n it_o have_v also_o another_o viz._n lymphduct_n which_o i_o first_o discover_v in_o the_o brain_n of_o a_o strangle_a body_n and_o show_v to_o several_a then_o present_a run_v in_o different_a ramisication_n among_o the_o reticulated_a vessel_n and_o gland_n of_o this_o part_n which_o observation_n be_v add_v to_o that_o of_o the_o great_a anatomist_n anthony_n nuck_v who_o in_o that_o curious_a piece_n call_v adenogrophia_n say_v 150._o nuc._n p._n 150._o he_o see_v one_o come_v from_o the_o glandula_n pinealis_fw-la and_o that_o his_o friend_n another_o anatomist_n who_o name_n he_o mention_n not_o but_o i_o know_v it_o be_v one_o bodivol_n who_o i_o have_v the_o happiness_n to_o be_v very_o well_o acquaint_v withal_o now_o dead_a send_v he_o word_n he_o see_v another_o not_o far_o from_o the_o aforesaid_a place_n may_v be_v of_o sufficient_a authority_n to_o evince_v the_o real_a existence_n of_o these_o vessel_n hitherto_o so_o much_o inquire_v after_o in_o the_o brain_n as_o well_o as_o in_o other_o part_n of_o the_o body_n the_o gland_n belong_v to_o this_o plexus_fw-la be_v very_o many_o but_o very_o small_a and_o their_o use_n according_a to_o all_o the_o modern_n especial_o willis_n duncan_n and_o vieussenius_fw-la to_o carry_v off_o the_o redundant_fw-la watery_a part_n of_o the_o blood_n but_o that_o without_o ever_o show_v by_o what_o rational_a contrivance_n of_o structure_n it_o can_v be_v do_v see_v none_o of_o they_o ascribe_v a_o secretory_a dust_n which_o must_v always_o be_v in_o readiness_n when_o any_o unprofitable_a part_n be_v to_o be_v discharge_v since_o therefore_o this_o part_n be_v find_v furnish_v with_o lymphduct_n it_o will_v be_v no_o hard_a matter_n to_o conceive_v the_o genuine_a use_n of_o the_o gland_n which_o be_v to_o separate_v a_o rich_a nutritious_a juice_n from_o the_o influent_a blood_n and_o by_o the_o lymphduct_n to_o refund_v it_o to_o the_o refluent_a after_o the_o loss_n of_o its_o noble_a part_n leave_v behind_o in_o the_o brain_n in_o its_o passage_n to_o the_o heart_n again_o it_o may_v also_o for_o aught_o i_o know_v according_a to_o the_o opinion_n of_o willis_n serve_v to_o warm_v its_o neighbour_a part_n the_o internal_a superficies_n of_o the_o brain_n which_o be_v pure_o medullary_n have_v not_o so_o plentiful_a a_o share_n of_o blood-vessel_n disperse_v through_o it_o as_o the_o rest_n and_o consequent_o to_o maintain_v a_o equality_n of_o warmth_n conduce_v so_o much_o to_o the_o conserve_n the_o spirit_n in_o their_o due_a vigour_n and_o exercise_n must_v borrow_v a_o additional_a supply_n from_o hence_o it_o be_v situate_v upon_o the_o middle_n of_o the_o thalami_fw-la nervorum_fw-la opticorum_fw-la all-along_a they_o length_n way_n and_z contrary_a to_o what_o willis_n say_v be_v by_o virtue_n of_o several_a blood-vessel_n join_v to_o that_o medullary_a part_n of_o the_o brain_n so_o call_v immediate_o lie_v under_o it_o chap._n viii_o of_o the_o rete_fw-la mirabile_n notwithstanding_o the_o opinion_n of_o the_o late_a wepfer_n willis_n and_o vieussenius_fw-la too_o which_o then_o last_v indeed_o though_o but_o now_o and_o then_o be_v willing_a to_o allow_v it_o a_o existence_n only_o in_o man_n who_o nevertheless_o if_o the_o supposition_n of_o willis_n be_v true_a viz._n that_o such_o can_v but_o be_v fool_n have_v better_o be_v without_o it_o 2._o willis_n p._n 2d_o col_fw-fr 2._o
together_o with_o almost_o all_o the_o ancient_n as_o vesalius_n columbus_n etc._n etc._n to_o the_o contrary_a i_o have_v never_o find_v this_o rete_fw-la want_v or_o with_o any_o difficulty_n discoverable_a in_o man_n spring_v from_o and_o lie_v on_o the_o inside_n of_o each_o carotid_n artery_n in_o that_o place_n of_o the_o circular_a sinus_n chief_v which_o look_v into_o the_o four_o abovementioned_a inferior_a and_o superior_a sinus_n in_o the_o basis_n of_o the_o brain_n and_o in_o some_o measure_n also_o the_o whole_a length_n of_o the_o sella_n turcica_n on_o each_o side_n between_o the_o gland_n and_o the_o carotid_v artery_n and_o that_o it_o be_v so_o small_a in_o they_o with_o respect_n to_o what_o it_o be_v in_o brute_n of_o several_a kind_n be_v no_o way_n surprise_v when_o consideration_n be_v have_v to_o the_o use_n and_o service_n of_o it_o in_o those_o creature_n who_o by_o reason_n of_o their_o prone_a position_n will_v otherwise_o be_v in_o danger_n of_o have_v their_o brain_n deluge_v as_o it_o be_v with_o a_o overgreat_a quantity_n of_o the_o influent_a blood_n and_o of_o a_o rupture_n of_o the_o vessel_n by_o its_o violent_a ingress_n and_o this_o danger_n so_o much_o the_o more_o threaten_a by_o how_o much_o the_o same_o cause_n which_o bring_v it_o into_o the_o brain_n with_o that_o force_n be_v equal_o as_o great_a and_o effectual_a to_o hinder_v its_o proportionable_a return_n for_o the_o relief_n of_o which_o inconveniency_n nature_n have_v contrive_v a_o mean_n of_o its_o more_o easy_a and_o safe_a descent_n into_o the_o brain_n by_o turn_v that_o one_o large_a stream_n of_o blood_n which_o through_o its_o be_v pen_v in_o one_o channel_n become_v so_o rapid_a into_o many_o more_o by_o which_o mean_v the_o carotid_v trunk_n above_o the_o dura_n mater_n in_o those_o creature_n be_v very_o small_a to_o what_o it_o be_v beneath_o whereas_o that_o artery_n in_o man_n etc._n etc._n have_v the_o same_o bigness_n on_o both_o side_n that_o membrane_n and_o they_o not_o only_o reticulate_v and_o contort_a for_o the_o more_o slow_a and_o laborious_a which_o contrivance_n the_o ancient_n think_v be_v only_o for_o a_o more_o exact_a preparation_n of_o the_o blood_n for_o animal_n spirit_n descent_n of_o the_o blood_n but_o also_o many_o of_o they_o by_o their_o insertion_n into_o the_o glandula_n pituitaria_fw-la attend_v with_o small_a vein_n issue_v thence_o to_o take_v off_o some_o part_n of_o the_o burden_n too_o this_o last_o contrivance_n of_o nature_n methinks_v may_v be_v sufficient_a to_o render_v that_o controversy_n of_o vieussenius_fw-la with_o willis_n which_o before_o they_o 2._o vieuss_n p._n 16_o pat_o 2._o be_v betwixt_o waleus_n and_o rolfincius_n the_o two_o latter_a on_o each_o side_n deny_v this_o rete_fw-la to_o have_v any_o vein_n very_o needless_a see_v that_o if_o the_o pituitary_a gland_n have_v any_o which_o i_o be_o confident_a it_o have_v notwithstanding_o the_o positive_a assertion_n of_o diemerbroeke_n 3._o diemerbr_n p._n 364._o par_fw-fr 3._o in_o order_n to_o serve_v his_o own_o most_o unprobable_a hypothesis_n to_o the_o contrary_a as_o have_v see_v they_o plain_o inject_v with_o wax_n then_o this_o part_n of_o the_o blood_n in_o some_o of_o the_o branch_n of_o the_o say_v rete_fw-la which_o be_v plain_o insert_v into_o the_o gland_n be_v equal_o capable_a of_o be_v reduce_v by_o those_o vein_n without_o any_o necessity_n of_o have_v recourse_n to_o those_o remote_a branch_n vieussenius_fw-la have_v be_v force_v to_o seek_v for_o 2._o vieuss_n p_o 45_o par_fw-fr 2._o as_o if_o it_o have_v have_v they_o of_o its_o own_o and_o that_o to_o the_o aforesaid_a position_n of_o different_a creature_n ought_v chief_o to_o be_v ascribe_v the_o variety_n of_o magnitude_n of_o this_o rete_fw-la in_o several_a of_o they_o its_o size_n in_o dog_n seem_v high_o to_o evince_v in_o which_o by_o reason_n of_o their_o horizontal_n position_n be_v neither_o so_o prone_a as_o several_a brute_n who_o seed_n on_o grass_n nor_o so_o erect_v as_o man_n that_o rete_fw-la be_v find_v small_a than_o in_o the_o first_o and_o large_a than_o in_o the_o last_o another_o use_v it_o have_v be_v think_v to_o have_v be_v to_o carry_v off_o a_o considerable_a quantity_n of_o a_o dull_a watery_a part_n of_o the_o blood_n in_o order_n to_o the_o production_n of_o the_o fine_a animal_n spirit_n and_o this_o it_o be_v think_v to_o effect_v by_o mean_n and_o help_n of_o the_o pituitary_a gland_n betwixt_o which_o be_v itself_o there_o be_v constant_o observe_v a_o great_a affinity_n the_o one_o be_v either_o great_a or_o lesser_a in_o proportion_n as_o the_o other_o be_v so_o and_o betwixt_o which_o there_o be_v in_o all_o creature_n but_o more_o remarkable_o in_o those_o where_o they_o be_v both_o large_a a_o distribution_n of_o several_a branch_n come_v from_o the_o aforesaid_a rete_fw-la and_o this_o be_v look_v upon_o by_o vieussenius_fw-la so_o considerable_a a_o office_n of_o the_o glandula_n pituitaria_fw-la that_o in_o those_o creature_n where_o it_o be_v but_o small_a as_o in_o man_n horse_n dog_n etc._n etc._n he_o have_v substitute_v many_o 3._o vieus_n p._n 102_o par_fw-fr 3._o but_o particular_o two_o cavity_n for_o that_o use_n in_o the_o wedglike_a bone_n just_a under_o the_o sella_n turcica_n in_o which_o he_o suppose_v that_o part_n of_o the_o aforesaid_a serum_n which_o by_o the_o smallness_n of_o the_o rete_fw-la can_v be_v return_v that_o way_n be_v remit_v by_o several_a little_a artery_n slip_v off_o from_o the_o carotid_n whilst_o under_o the_o sella_n turcica_n terminate_a in_o the_o two_o abovenamed_a cavity_n there_o either_o depose_v a_o part_n of_o the_o serum_n to_o be_v carry_v off_o by_o a_o strange_a way_n he_o there_o mention_n viz._n by_o two_o hole_n into_o the_o nostril_n and_o thence_o into_o the_o fauces_fw-la or_o else_o by_o certain_a vein_n meet_v they_o in_o that_o place_n as_o their_o proper_a reductory_n vessel_n 2._o vieuss_n p._n 9_o par_fw-fr 2._o to_o the_o heart_n now_o as_o to_o this_o office_n of_o the_o glandula_n pituitaria_fw-la i_o can_v easy_o be_v persuade_v it_o be_v either_o design_v for_o or_o capable_a of_o it_o till_o such_o time_n the_o abettor_n of_o this_o opinion_n can_v be_v able_a to_o show_v i_o it_o furnish_v with_o a_o excretory_a dust_n for_o this_o purpose_n and_o if_o they_o offer_v that_o the_o vein_n be_v such_o i_o reply_v that_o beside_o its_o be_v very_o unprobable_a that_o so_o vast_a a_o quantity_n of_o blood_n as_o continual_o be_v bring_v by_o the_o carotid_v artery_n to_o the_o brain_n shall_v be_v able_a to_o get_v rid_v of_o any_o considerable_a quantity_n of_o its_o serosity_n by_o so_o small_a a_o part_n as_o the_o glandula_n pituitaria_fw-la be_v it_o be_v not_o the_o usual_a way_n of_o nature_n to_o part_n with_o any_o share_n of_o its_o juice_n out_o of_o its_o vessel_n when_o so_o unactive_a and_o unprositable_a as_o this_o be_v and_o immediate_o to_o receive_v it_o in_o again_o see_v it_o be_v provide_v of_o emunctory_n enough_o to_o convey_v it_o away_o by_o moreover_o grant_v which_o by_o no_o reasonable_a mean_n be_v to_o be_v grant_v it_o be_v so_o as_o they_o will_v have_v it_o yet_o nevertheless_o in_o conformity_n to_o nature_n proceed_n in_o all_o suchlike_a case_n there_o ought_v to_o be_v a_o intermediate_v passage_n by_o way_n of_o a_o secretory_a dust_n which_o none_o have_v be_v able_a hitherto_o to_o discover_v and_o so_o far_o as_o vieussenius_fw-la seem_v to_o be_v of_o this_o opinion_n 3._o vieus_n p._n 102_o par_fw-fr 3._o which_o in_o one_o place_n he_o plain_o be_v make_v it_o of_o so_o gross_a and_o viscid_a a_o nature_n as_o be_v only_o sit_v to_o be_v discharge_v at_o the_o emunctory_a of_o the_o nose_n the_o same_o reply_n be_v satisfactory_a but_o when_o by_o way_n of_o flat_a contradiction_n to_o himself_o he_o come_v to_o make_v the_o same_o gross_a humour_n a_o perfect_a sine_fw-la lympha_fw-la the_o answer_n be_v then_o 1._o vieuss_n p._n 54._o par_fw-fr 1._o that_o there_o be_v no_o need_n of_o part_v with_o it_o beforehand_o see_v we_o find_v that_o liquor_n only_o separate_v by_o the_o lymphduct_n of_o the_o brain_n afterward_o see_v therefore_o there_o be_v such_o a_o affinity_n as_o before_o mention_v between_o the_o rete_fw-la mirabile_n and_o glandula_n pituitaria_fw-la and_o take_v it_o for_o grant_v that_o the_o office_n of_o the_o glandula_n pituitaria_fw-la be_v not_o what_o it_o have_v general_o hitherto_o be_v believe_v to_o the_o end_n we_o may_v attain_v a_o more_o exact_a knowledge_n of_o what_o it_o real_o be_v it_o seem_v not_o altogether_o immethodical_a to_o take_v that_o part_n into_o consideration_n in_o the_o next_o place_n together_o with_o the_o infundibulum_fw-la which_o last_o have_v not_o only_o as_o near_o a_o relation_n to_o the_o gland_n as_o the_o gland_n
resist_v death_n as_o to_o turn_v itself_o from_o the_o invert_v or_o supine_n position_n it_o have_v be_v place_v in_o in_o order_n to_o make_v the_o experiment_n to_o its_o prone_a or_o natural_a one_o and_o to_o live_v and_o move_v six_o hour_n after_o from_o whence_o it_o appear_v that_o muscular_a motion_n be_v capable_a of_o be_v perform_v by_o the_o animal_n fluid_v alone_o without_o the_o concurrence_n of_o the_o blood_n by_o most_o author_n constant_o hitherto_o make_v to_o go_v a_o share_n therewith_o in_o the_o performance_n of_o that_o action_n 76._o caldesi_n p._n 75_o 76._o so_o that_o we_o find_v nature_n have_v not_o stint_v itself_o to_o one_o place_n for_o the_o seat_n of_o the_o sensative_a soul_n or_o reservatory_n of_o the_o animal_n spirit_n so_o call_v in_o order_n to_o the_o discharge_n of_o the_o aforementioned_a function_n no_o more_o than_o it_o be_v at_o a_o loss_n about_o the_o maintain_v they_o in_o their_o integrity_n by_o other_o way_n when_o it_o have_v so_o fall_v out_o that_o the_o natural_a structure_n of_o the_o organ_n destine_v by_o nature_n to_o that_o end_n have_v utter_o be_v destroy_v of_o which_o we_o have_v many_o instance_n in_o the_o anatomical_a history_n those_o function_n in_o several_a creature_n remain_v perfect_a where_o after_o death_n there_o have_v be_v sound_v neither_o any_o cerebrum_fw-la or_o cerebellum_fw-la at_o all_o or_o at_o least_o such_o as_o by_o their_o constitution_n be_v utter_o render_v useless_a to_o any_o such_o end_n of_o the_o first_o be_v a_o instance_n of_o the_o learned_a wepfer_n in_o a_o child_n live_v sixteen_o hour_n alter_v it_o be_v bear_v and_o discharge_v all_o the_o duty_n of_o nature_n that_o one_o of_o its_o age_n be_v capable_a of_o and_o by_o though_o by_o which_o all_o the_o patron_n of_o a_o nutritious_a juice_n by_o the_o nerve_n may_v do_v well_o to_o take_v notice_n of_o of_o a_o very_a strong_a and_o good_a habit_n of_o body_n 120_o misc_n cary_v au._n 3_o p._n 120_o who_o brain_n after_o death_n be_v find_v to_o be_v only_o a_o heap_n of_o watery_a bladder_n or_o hydatide_n except_o a_o small_a part_n at_o the_o bottom_n of_o the_o skull_n lie_v in_o a_o sinus_n make_v in_o the_o wedglike_a bone_n where_o the_o pituitary_a gland_n be_v common_o find_v consist_v only_o of_o three_o medullary_a body_n two_o of_o which_o be_v each_o of_o the_o bigness_n of_o a_o kidney_n bean_n and_o the_o three_o behind_o they_o of_o a_o pea_n only_o from_o which_o indeed_o there_o do_v proceed_v some_o but_o very_o inconsiderable_a nerve_n or_o nervous_a fibril_n but_o such_o as_o none_o can_v judge_v of_o a_o due_a proportion_n requisite_a to_o satisfy_v the_o exigency_n of_o the_o common_a natural_a and_o vital_a function_n the_o truth_n of_o which_o be_v still_o more_o plain_a and_o without_o exception_n in_o another_o instance_n in_o the_o miscell_n med._n physic_n gallic_n of_o a_o child_n live_v sieve_n day_n after_o it_o be_v bear_v 54._o misc_n med._n phys_n gall._n au._n 3._o p._n 54._o who_o head_n have_v nothing_o but_o water_n contain_v within_o the_o enclosure_n of_o the_o dura_n and_o pia_n mater_n without_o the_o least_o footstep_n of_o any_o medullary_a part_n at_o all_o parallel_v to_o which_o two_o last_a instance_n i_o have_v one_o communicate_v to_o i_o by_o that_o curious_a anatomist_n and_o learned_a person_n dr._n tyson_n in_o a_o child_n bear_v alive_a with_o no_o more_o brain_n in_o the_o skull_n than_o what_o may_v lie_v in_o a_o filbird-shell_n the_o medulla_n spinalis_fw-la be_v much_o large_a than_o ordinary_a as_o though_o part_n of_o the_o absent_a brain_n have_v be_v squeeze_v down_o thither_o of_o the_o last_o viz._n where_o the_o natural_a conformation_n have_v be_v deprave_v there_o be_v extant_a a_o instance_n in_o two_o several_a place_n of_o the_o miscell_n curios_fw-la in_o a_o sit_v ox_n 1._o misc_n cur._n obs_n 26._o &_o 130._o an._n 1._o which_o while_n live_v there_o be_v observe_v but_o very_o little_a sign_n of_o any_o such_o thing_n whole_a brain_n be_v nevertheless_o after_o death_n find_v whole_o petrify_v from_o all_o these_o it_o be_v manifest_a the_o sensative_a faculty_n be_v able_a to_o answer_v its_o internal_a or_o external_a impression_n by_o one_o part_n as_o well_o as_o another_o and_o that_o the_o medullary_n system_n of_o the_o spinalis_fw-la medulla_n may_v become_v as_o adequate_v a_o sensory_a in_o relation_n to_o the_o aforesaid_a function_n sometime_o as_o either_o cerebrum_fw-la or_o cerebellum_fw-la and_o as_o to_o the_o power_n or_o influence_n the_o soul_n in_o general_a exercise_n over_o the_o nerve_n howsoever_o different_a in_o their_o original_n see_v we_o have_v already_o observe_v what_o a_o provident_a care_n nature_n have_v take_v for_o the_o preserve_a creature_n from_o their_o own_o violence_n in_o that_o it_o have_v not_o only_o constitute_v the_o chief_a fountain_n from_o whence_o the_o great_a current_n of_o spirit_n be_v derive_v for_o the_o service_n of_o the_o vital_a and_o natural_a part_n by_o the_o eight_o and_o intercostal_n nerve_n which_o be_v the_o cerebellum_fw-la so_o as_o to_o be_v free_a from_o the_o command_n of_o the_o rational_a will_n in_o its_o ordinary_a way_n of_o act_v but_o have_v also_o take_v care_n that_o not_o any_o of_o those_o branch_n which_o have_v their_o original_n from_o trunk_n which_o be_v under_o the_o power_n of_o voluntary_a dictate_v of_o the_o soul_n shall_v terminate_v in_o such_o organ_n by_o which_o those_o function_n be_v discharge_v abare_a communication_n between_o nerve_n of_o different_a province_n not_o be_v sufficient_a to_o such_o end_n or_o office_n as_o have_v be_v observe_v in_o those_o aforementioned_a additional_a subsidiary_a small_a stream_n of_o spirit_n flow_v to_o the_o part_n consecrate_v to_o the_o natural_a and_o vital_a function_n by_o branch_n propagate_v from_o the_o spinal_a marrow_n to_o the_o intercostal_n nerve_n all_o the_o way_n of_o its_o descent_n to_o the_o low_a venture_n so_o we_o may_v further_o also_o remark_n that_o as_o there_o be_v some_o manner_n of_o impression_n make_v upon_o the_o perceptive_a faculty_n after_o such_o sort_n of_o a_o manner_n as_o that_o it_o even_o lose_v its_o power_n over_o its_o own_o subject_n viz._n the_o nerve_n which_o be_v subservient_fw-fr to_o its_o voluntary_a command_n as_o in_o laugh_v sneeze_n and_o libidinous_a erection_n the_o organ_n by_o which_o these_o action_n be_v produce_v be_v altogether_o under_o the_o power_n of_o those_o nerve_n subservient_fw-fr to_o the_o voluntary_a dictate_v of_o the_o soul_n and_o act_v after_o the_o very_a same_o manner_n as_o those_o of_o respiration_n as_o often_o as_o preportionable_a object_n present_a and_o notwithstanding_o the_o assertion_n of_o dr._n willis_n to_o the_o contrary_a who_o make_v laugh_v proper_a to_o man_n only_o and_o by_o the_o authority_n of_o aristotle_n sneeze_v a_o affection_n proper_a but_o to_o few_o if_o any_o other_o creature_n beside_o man_n may_v also_o produce_v the_o same_o effect_n in_o brute_n 106_o will_v p_o 106_o provide_v their_o stupid_a soul_n be_v capable_a of_o be_v equal_o impress_v by_o such_o object_n as_o arc_n proper_a for_o exciting_a a_o rational_a laughter_n as_o we_o see_v they_o be_v by_o those_o produce_v the_o aforementioned_a venereous_a action_n of_o the_o want_n of_o the_o plexus_fw-la cervicalis_fw-la of_o the_o intercostal_n nerve_n and_o two_o or_o three_o small_a branch_n propagate_v from_o thence_o to_o the_o nerve_n of_o the_o diaphragm_n which_o he_o call_v a_o disposition_n peculiar_a to_o man_n and_o consequent_o in_o his_o opinion_n the_o cause_n of_o that_o affection_n in_o he_o may_v be_v in_o a_o great_a measure_n supply_v not_o only_o by_o that_o nervous_a branch_n we_o find_v propagate_v from_o the_o interior_a plexus_fw-la of_o the_o par_fw-fr vagum_fw-la which_o nerve_n be_v equal_o dependent_a on_o the_o cerebellum_fw-la as_o the_o intercostal_n to_o the_o three_o brachial_a nerve_n from_o which_o the_o nerve_n of_o the_o diaphragm_n have_v one_o of_o its_o original_n but_o also_o that_o other_o propagate_v from_o the_o thoracick_n plexus_fw-la of_o the_o intercostal_n nerve_n itself_o to_o the_o same_o aforesaid_a brachial_a nerve_n into_o which_o the_o nerve_n of_o the_o diaphragm_n be_v insert_v so_o on_o the_o contrary_a there_o be_v some_o impression_n make_v upon_o the_o soul_n sometime_o through_o which_o it_o acquire_v a_o power_n over_o those_o nerve_n at_o other_o time_n in_o no_o wise_a subject_n to_o it_o and_o those_o be_v the_o impression_n either_o of_o great_a joy_n or_o great_a grief_n suitable_a to_o which_o the_o vital_a and_o natural_a faculty_n be_v make_v either_o much_o more_o or_o else_o so_o much_o less_o vigorous_a than_o ordinary_a as_o even_o quite_o to_o languish_v how_o this_o come_v to_o pass_v according_a to_o dr._n willis_n in_o savour_n of_o his_o own_o hypothesis_n and_o
particular_o in_o relation_n to_o the_o first_o which_o allow_v of_o no_o involuntary_a motion_n but_o what_o come_v from_o the_o province_n of_o the_o cerebellum_fw-la be_v explain_v by_o suppose_v a_o undulate_v or_o roll_a motion_n of_o the_o first_o impression_n upon_o the_o brain_n out_o of_o it_o again_o through_o the_o natiform_a process_n into_o the_o cerebellum_fw-la and_o from_o thence_o by_o the_o annular_a process_n into_o the_o intercostal_n pair_n of_o nerve_n and_o so_o to_o the_o nerve_n of_o the_o diaphragm_n and_o he_o shall_v to_o make_v this_o way_n of_o explication_n entire_a have_v take_v in_o also_o all_o those_o vertebral_n branch_n insert_v into_o the_o intercostal_n nerve_n in_o order_n to_o the_o move_n of_o the_o intercostal_n muscle_n without_o which_o that_o action_n can_v be_v perform_v by_o a_o correspondence_n between_o which_o nerve_n and_o those_o of_o the_o face_n be_v all_o of_o one_o family_n the_o aforesaid_a gesture_n of_o laugh_v be_v perform_v now_o beside_o the_o needlesness_n of_o bring_v the_o conception_n or_o impression_n of_o the_o brain_n under_o a_o necessity_n of_o be_v execute_v by_o the_o inferior_a province_n of_o the_o cerebellum_fw-la till_o such_o time_n as_o it_o be_v prove_v that_o such_o motion_n of_o the_o spirit_n upon_o extraordinary_a occasion_n may_v rational_o be_v grant_v without_o suppose_v a_o regular_a motion_n of_o the_o same_o through_o such_o suppose_a passage_n lead_v from_o one_o part_n to_o the_o other_o at_o all_o other_o time_n the_o allow_v whereof_o do_v necessary_o imply_v a_o capacity_n of_o the_o soul_n to_o alter_v the_o course_n of_o the_o spirit_n influence_v the_o vital_a and_o natural_a organ_n at_o least_o in_o some_o measure_n at_o its_o pleasure_n which_o be_v plain_o contrary_a to_o experience_n i_o shall_v hardly_o look_v upon_o that_o hypothesis_n to_o be_v any_o more_o than_o mere_o precarious_a and_o further_o to_o show_v that_o such_o effect_n or_o alteration_n of_o the_o vital_a organ_n happen_v upon_o violent_a passion_n of_o the_o mind_n be_v no_o way_n owe_v to_o such_o a_o transmission_n of_o the_o animal_n fluid_a from_o the_o cerebrum_fw-la to_o the_o cerebellum_fw-la as_o the_o aforesaid_a author_n suppose_v i_o ask_v how_o it_o shall_v come_v to_o pass_v that_o in_o the_o contrary_a passion_n of_o grief_n especial_o when_o occasion_v by_o surprise_v frightful_a accident_n the_o heart_n shall_v so_o languish_v as_o sometime_o whole_o to_o cease_v beat_v see_v in_o the_o aforesaid_a experiment_n we_o find_v that_o motion_n self-sufficient_a by_o virtue_n of_o a_o constant_a irradiation_n or_o influence_n of_o the_o cerebellum_fw-la only_o and_o consequent_o can_v not_o be_v think_v so_o to_o languish_v upon_o such_o occasion_n for_o want_n of_o those_o spirit_n it_o never_o stand_v in_o need_n of_o without_o therefore_o be_v force_v to_o have_v recourse_n to_o that_o other_o hypothesis_n clog_v with_o so_o many_o difficulty_n i_o think_v the_o aforesaid_a case_n may_v admit_v of_o another_o manner_n of_o explication_n consistent_a with_o what_o i_o have_v all-along_a advance_v upon_o this_o subject_a relate_n to_o the_o true_a source_n of_o voluntary_a and_o involuntary_a action_n if_o we_o suppose_v that_o from_o such_o impression_n upon_o the_o soul_n as_o be_v either_o extreme_o more_o or_o less_o welcome_a to_o it_o in_o which_o case_n the_o object_n be_v say_v to_o act_v unproportionable_o upon_o the_o subject_a it_o may_v not_o only_a act_n according_o above_o its_o usual_a irradiation_n and_o force_n over_o the_o cerebellum_fw-la and_o by_o that_o mean_n as_o send_v the_o spirit_n either_o more_o or_o less_o copious_o to_o the_o vital_a organ_n particular_o the_o heart_n the_o near_a way_n viz._n by_o the_o par_fw-fr vagum_fw-la and_o intercostal_n pair_n for_o that_o time_n render_v they_o more_o vigorous_a or_o more_o languid_a in_o their_o operation_n in_o proportion_n to_o the_o difference_n of_o the_o passion_n just_a after_o the_o manner_n it_o happen_v in_o case_n of_o alienation_n of_o mind_n or_o distraction_n where_o by_o the_o strength_n of_o the_o impression_n or_o idea_n upon_o the_o mind_n it_o drive_v the_o spirit_n with_o such_o a_o impetus_fw-la into_o the_o limb_n as_o make_v they_o act_v with_o a_o vast_a great_a force_n than_o what_o they_o be_v wont_a to_o do_v even_o above_o the_o resistance_n of_o chain_n or_o bar_n of_o iron_n but_o also_o it_o may_v transmit_v the_o spirit_n more_o or_o less_o copious_o to_o the_o vital_a and_o natural_a faculty_n the_o other_o way_n free_v from_o the_o subsidiary_a nerve_n of_o the_o spina_n aforementioned_a to_o the_o intercostal_n pair_n which_o send_v forth_o ramification_n to_o the_o heart_n in_o man_n especial_o equal_o with_o if_o not_o more_o plentiful_o than_o the_o par_fw-fr vagum_fw-la and_o from_o the_o vertebral_n and_o brachial_a to_o the_o nerve_n of_o the_o diaphragm_n and_o intercostal_n muscle_n by_o which_o mean_v it_o so_o fall_v out_o upon_o such_o impression_n that_o the_o organ_n of_o respiration_n to_o the_o sight_n and_o that_o of_o pulsation_n to_o the_o touch_n be_v very_o remarkable_o affect_v by_o this_o mean_n i_o have_v endeavour_v to_o restore_v the_o brain_n to_o a_o capacity_n of_o put_v its_o own_o conception_n or_o impression_n make_v upon_o it_o into_o execution_n without_o be_v behold_v to_o its_o neighbour_n the_o cerebellum_fw-la and_o that_o either_o in_o relation_n to_o its_o voluntary_a inadvertent_n or_o involuntary_a act_n where_o note_n i_o make_v a_o distinction_n between_o act_n involuntary_a and_o those_o of_o inadvertency_n inasmuch_o as_o these_o last_o though_o they_o be_v not_o with_o yet_o they_o be_v not_o contrary_a to_o the_o actual_a consent_n of_o the_o will_n after_o the_o manner_n of_o the_o natural_a action_n of_o the_o viscera_n such_o as_o be_v out_o of_o the_o power_n of_o the_o will_v to_o hinder_v beside_o which_o i_o look_v upon_o no_o other_o in_o rational_a creature_n in_o a_o strict_a sense_n consider_v to_o be_v involuntary_a forasmuch_o as_o it_o be_v a_o contradiction_n to_o say_v a_o voluntary_a agent_n do_v any_o thing_n against_o his_o rational_a will_n though_o it_o may_v be_v against_o his_o approbation_n by_o which_o he_o be_v only_o distinguish_v from_o a_o brute_n though_o dr._n willis_n have_v all-along_a use_v the_o word_n involuntario_fw-la in_o another_o sense_n confound_v it_o with_o act_n of_o mere_a ignorance_n under_o the_o term_n of_o insciè_fw-fr and_o those_o also_o do_v only_o inadvertent_o or_o without_o consideration_n under_o the_o term_n of_o inconsulto_fw-la and_o doubtless_o upon_o this_o notion_n of_o involuntary_a motion_n build_v his_o hypothesis_n which_o make_v all_o those_o action_n which_o be_v perform_v at_o any_o time_n without_o the_o notice_n of_o the_o intellectual_a faculty_n notwithstanding_o at_o other_o time_n they_o be_v altogether_o under_o its_o command_n equal_o depend_v on_o the_o cerebellum_fw-la as_o those_o pure_o natural_a which_o be_v always_o free_a from_o the_o power_n of_o the_o first_o and_o also_o absolute_o subject_a to_o the_o last_o these_o action_n i_o have_v therefore_o call_v by_o the_o term_n of_o supervenient_a instinct_n and_o be_v the_o mere_a effect_n of_o external_a or_o internal_a impression_n upon_o sensative_a body_n as_o echo_n be_v to_o those_o upon_o such_o as_o be_v only_o natural_a be_v equal_o competent_a to_o rational_a and_o irrational_a creature_n and_o capable_a of_o be_v exert_v by_o the_o influence_n of_o the_o very_a same_o nerve_n which_o minister_v to_o the_o sensative_a faculty_n whether_o it_o act_v advertent_o or_o inadvertent_o in_o the_o one_o or_o spontaneous_o in_o the_o other_o where_o by_o the_o way_n it_o may_v not_o be_v altogether_o unworthy_a of_o our_o take_a notice_n the_o genuine_a sense_n of_o that_o word_n in_o action_n perform_v by_o those_o creature_n be_v much_o near_a akin_a to_o the_o term_n inconsulto_fw-la then_o involuntario_n in_o man_n without_o the_o suppose_a ramble_a motion_n of_o impression_n make_v upon_o it_o through_o passage_n only_o at_o some_o time_n or_o upon_o eztraordinary_a occasion_n make_v use_v of_o out_o of_o the_o cerebrum_fw-la into_o the_o cerebellum_fw-la now_o as_o to_o the_o organisation_n of_o this_o part_n make_v to_o consist_v of_o various_a medullary_n prominency_n appendix_n and_o tract_n by_o nature_n contrive_v for_o and_o adjust_v to_o the_o various_a function_n of_o the_o soul_n and_o dispensation_n of_o the_o animal_n spirit_n through_o the_o whole_a system_n of_o the_o nerve_n which_o first_o be_v confine_v to_o or_o make_v to_o reside_v in_o such_o and_o such_o place_n as_o so_o many_o distinct_a apartment_n viz._n the_o commune_fw-la sensorium_n in_o one_o place_n the_o imagination_n and_o judgement_n in_o another_o and_o the_o memory_n in_o a_o three_o of_o which_o there_o be_v such_o a_o large_a and_o formal_a apparatus_n and_o description_n though_o with_o great_a discrepancy_n of_o opinion_n in_o willis_n
six_o pair_n p._n 148_o the_o intercostal_n ibid._n the_o seven_o or_o auditory_a pair_n p._n 149_o the_o eight_o or_o par_n vagum_fw-la the_o accessary_a spinal_a nerve_n p._n 151_o the_o nine_o pair_n p._n 142_o the_o ten_o pair_n p._n 153_o the_o structure_n of_o the_o nerve_n p._n 154_o nerve_n their_o different_a function_n p._n 157_o the_o effect_n of_o communication_n betwixt_o nerve_n p._n 175_o 181_o the_o nerve_n within_o the_o cranium_fw-la how_o supply_v with_o spirit_n from_o various_a medullary_n tract_n of_o the_o brain_n p._n 194_o 195_o etc._n etc._n o_o optic_a nerve_n its_o original_a p._n 123_o external_n object_n how_o they_o act_n p._n 158_o improportionable_a act_n of_o the_o object_n p._n 186_o organization_n of_o the_o brain_n p._n 189_o overplus_n of_o the_o animal_n fluid_a of_o cerebrum_fw-la with_o its_o use_n p._n 199_o p_o the_o pia_fw-la mater_fw-la p._n 10_o why_o call_v choroeides_n ibid._n it_o be_v particular_a distribution_n ibid._n how_o to_o isnd_v it_o in_o the_o ventricles_n p._n 11_o be_v double_a every_o where_o but_o where_o most_o visible_o p._n 12_o it_o be_v inward_a lamina_fw-la be_v of_o a_o netlike_a texture_n p._n 15_o its_o use_v p._n 16_o its_o blood-vessel_n which_o be_v of_o two_o sort_n p._n 18_o 19_o how_o it_o invest_v the_o nerve_n and_o their_o distinct_a fibril_n p._n 19_o how_o the_o artery_n belong_v to_o the_o brain_n itself_o be_v ramify_v through_o it_o p._n 33_o how_o some_o branch_n of_o the_o carotid_n and_o vertebral_n artery_n be_v exempt_a from_o it_o p._n 34_o the_o process_n of_o the_o dura_n mater_n with_o their_o distribution_n and_o use_n p._n 7_o 8_o 9_o pulsation_n of_o the_o sinus_n whence_o p._n 50_o the_o plexus_fw-la choroeides_n of_o the_o brain_n p._n 57_o it_o be_v double_a ibid._n have_v two_o different_a original_n ibid._n what_o they_o be_v ibid._n where_o the_o first_o part_n begin_v to_o be_v glandulous_a p._n 58_o where_o the_o first_o part_n of_o the_o plexus_fw-la terminate_v and_o meet_v p._n 58_o where_o the_o second_o part_n begin_v to_o be_v retiform_a ibid._n the_o double_a connexion_n of_o the_o two_o part_n of_o the_o plexus_fw-la ibid._n two_o vein_n join_v the_o first_o part_n of_o the_o plexus_fw-la in_o its_o extremity_n p._n 61_o it_o be_v large_a reductory_n vein_n enter_v the_o four_o sinus_n ibid._n its_o lymphduct_n ibid._n it_o be_v gland_n p._n 62_o their_o use_n ibid._n &_o 63_o its_o situation_n and_o use_n ibid._n the_o pituitary_a gland_n have_v vein_n p._n 66_o processus_n lentiforme_v vid._n corpora_fw-la striata_fw-la passage_n into_o the_o infundibulum_fw-la p._n 123_o processus_n annularis_fw-la or_o second_o process_n of_o the_o cerebellum_fw-la p._n 129_o 135_o 140_o its_o striae_fw-la p._n 136_o processus_n natibus_fw-la antepositus_fw-la p._n 125_o processus_n nervi_fw-la aemulus_fw-la p._n 126_o processus_n nervuli_fw-la aemulus_fw-la p._n 128_o the_o plexus_fw-la choroeides_n of_o the_o cerebell_n p._n 134_o processus_n vermiculares_n p._n 135_o the_o first_o process_n of_o the_o cerebellum_fw-la ibid._n the_o three_o or_o choadal_n process_n of_o the_o cerebellum_fw-la p._n 136_o the_o medullary_n transverse_a process_n of_o the_o four_o ventricle_n p._n 136_o the_o medullary_a process_n descend_v to_o those_o transverse_a one_o p._n 137_o the_o plexus_fw-la choroeides_n of_o the_o cerebellum_fw-la p._n 133_o perception_n or_o passion_n what_o p._n 158_o r_n the_o receptacula_fw-la sellae_fw-la aequinae_fw-la etc._n etc._n of_o vieussenius_fw-la not_o existent_n in_o man_n p._n 45_o their_o use_n impossible_a p._n 46_o the_o rete_fw-la mirabile_n p._n 64_o always_o existent_a in_o man_n ibid._n it_o be_v situation_n ibid._n why_o small_a in_o they_o than_o brutus_n ib._n &_o 65_o the_o effect_n of_o its_o be_v so_o large_a in_o brute_n p._n 65_o be_v different_o situate_v in_o man_n and_o brute_n p._n 72_o hindermost_a root_n of_o the_o medulla_n spinalis_fw-la what_o former_o p._n 126_o respiration_n how_o perform_v p._n 165_o why_o a_o child_n unborn_a respire_v not_o p._n 168_o why_o respiration_n cease_v upon_o cut_v the_o cerebellum_fw-la p._n 174_o s_n sinus_n of_o the_o brain_n p._n 39_o their_o number_n ibid._n the_o lateral_a one_o p._n 40_o the_o three_o or_o longitudinal_n p._n 41_o the_o four_o or_o internal_a one_o ibid._n four_o other_o small_a sinus_n and_o their_o first_o author_n p._n 42_o 43_o the_o circular_a sinus_n p._n 43_o it_o be_v particular_a description_n ibid._n &_o 44_o its_o use_n p._n 47_o 48_o no_o serum_n can_v be_v separate_v but_o by_o proper_a secretory_n duct_n p._n 47_o the_n sinus_n have_v no_o pulsation_n of_o themselves_o p._n 50_o their_o pulsation_n be_v from_o the_o brain_n ibid._n the_o different_a ligament_n of_o the_o sinus_n p._n 57_o the_o use_n thereof_o ibid._n the_o blind_a cavity_n or_o diverticulum_n of_o the_o sinus_n p._n 52_o their_a use_v ibid._n the_o structure_n of_o the_o sinus_n p._n 53_o effect_n thereof_o ibid._n animal_n spirit_n how_o make_v more_o plentiful_o p._n 54_o why_o the_o sinus_n grow_v so_o wide_a on_o a_o sudden_a ibid._n their_o difference_n of_o structure_n p._n 56_o the_o long_a sinus_n common_o burst_v in_o strangle_a body_n ibid._n how_o the_o blood_n pass_v the_o lateral_a sinus_n in_o different_a position_n of_o the_o brain_n p._n 54_o structure_n of_o the_o brain_n vascular_a p._n 91_o secretion_n how_o make_v p._n 91_o 92_o sensation_n how_o explain_v p._n 88_o 101_o how_o make_v p._n 158_o corpora_fw-la striata_fw-la p._n 115_o 120_o septum_fw-la lucidum_fw-la p._n 119_o it_o be_v striae_fw-la ibid._n the_o spinalis_fw-la medulla_n in_o a_o tortoise_n officiate_a instead_o of_o the_o brain_n p._n 176_o sneeze_v why_o peculiar_a to_o man_n p._n 182_o commune_fw-la sensorium_n what_o p._n 191_o striae_fw-la of_o the_o annular_a process_n why_o large_a p._n 193_o 197_o why_o terminate_n in_o a_o middle_a medullary_n tract_n p._n 193_o conformation_n of_o the_o spinal_a marrow_n differ_v from_o that_o of_o the_o brain_n and_o why_o p._n 200_o t_n torcular_a herophili_n p._n 42_o tractus_n medullaris_n th._n nerv_n opt._n interjectus_fw-la of_o vieussenius_fw-la p._n 84_o tract_n med._n natibus_fw-la antepositus_fw-la of_o vieussen_n ibid._n transpiration_n what_o p._n 95_o conspiration_n of_o hypocrates_n ibid._n tone_n of_o part_n p._n 109_o testes_fw-la p._n 125_o thalami_fw-la nervorum_fw-la opticorum_fw-la p._n 121_o tria_fw-la foramina_fw-la relate_v to_o the_o insundibulum_n vide_fw-la insundibulum_n five_o vapour_n common_o so_o call_v how_o sometime_o affect_v the_o fibre_n of_o the_o dura_n mater_n p._n 6_o some_o vein_n of_o the_o d._n mater_n enter_v the_o three_o sinus_n p._n 41_o vertebral_n artery_n vide_fw-la artery_n vein_n of_o the_o dura_n mater_n enter_v the_o brain_n with_o the_o artery_n contrary_a to_o those_o of_o the_o brain_n itself_o p._n 26_o 27_o 28._o two_o vein_n enter_v the_o circular_a sinus_n p._n 45_o 46_o how_o the_o vein_n enter_v the_o sinus_n p._n 52_o 53_o the_o effect_n of_o their_o different_a entrance_n p._n 54_o the_o vein_n have_v a_o different_a disposition_n in_o the_o sinus_n of_o brute_n from_o what_o they_o have_v in_o man_n p._n 54_o vein_n of_o the_o corpora_fw-la striata_fw-la p._n 61_o the_o large_a reductory_n vein_n of_o the_o plexus_fw-la choroeides_n ibid._n vapour_n condense_v into_o lympha_fw-la p._n 81_o vascular_a constitution_n of_o part_n p._n 91_o vein_n how_o continuous_a to_o artery_n ibid._n vessel_n contain_v the_o animal_n fluid_a be_v capillary_a production_n of_o artery_n p._n 93_o vein_n only_a production_n of_o artery_n p._n 94_o vessel_n their_o minuteness_n p._n 95_o 96_o vessel_n of_o vessel_n ibid._n ventricles_n of_o the_o brain_n p._n 117_o valvula_n major_a p._n 128_o 119_o its_o situation_n and_o use_n p._n 128_o 129_o 130_o 132_o the_o three_o ventricles_n of_o the_o brain_n p._n 117_o vulva_fw-la cerebri_fw-la p._n 124_o finis_fw-la errata_fw-la page_z 9_o l._n 14._o for_o to_o read_v towards_o p._n 16_o l._n ult_n for_o from_o which_o r._n which_o from_o p._n 32._o in_o the_o title_n of_o the_o chapter_n for_o vein_n r._n vessel_n p._n 32._o l._n 13._o after_o vein_n insert_v which_o last_n have_v already_o be_v treat_v of_o p._n 64._o l._n 5._o deal_n only_o p._n 89._o l._n 16._o vitrious_a r._n vitrous_a p._n 92_o l._n 29._o for_o septometry_n r._n leptometry_n p._n 102._o l._n 3._o for_o contract_v r._n contract_n ibid._n l._n 29._o for_o reflexed_a r._n relax_v p._n 109._o l._n 18._o for_o hasten_v r._n happen_v p._n 117._o l._n 28._o for_o semicirculari_fw-la r._n semicirculare_a p._n 119._o l._n 12._o for_o become_v r._n become_v p._n 138._o from_z and_o therefore_o in_o the_o seven_o line_n to_o the_o end_n of_o that_o paragraph_n leave_v it_o out_o p._n 137._o l._n 7._o for_o above_o r._n below_z p._n 168._o l._n 8._o after_o passage_n add_v at_o least_o but_o very_o little_a m._n Ê‹ander_n gucht_v sculp_v
of_o this_o part_n may_v be_v owe_v in_o some_o if_o not_o the_o great_a part_n to_o such_o a_o narrowness_n of_o the_o vessel_n discover_v here_o contain_v the_o pellucid_a substance_n aforementioned_a as_o will_v not_o entertain_v any_o fluid_n whatsoever_o without_o its_o be_v first_o reduce_v into_o very_a minute_n particle_n or_o septometry_n so_o call_v which_o last_o vessel_n i_o therefore_o suppose_v to_o be_v only_o yet_o more_o capillary_n production_n of_o the_o aforesaid_a cortical_a vessel_n as_o they_o be_v of_o the_o red_a or_o blood-vessel_n endue_v with_o such_o a_o poor_a as_o fit_v they_o only_o for_o the_o reception_n of_o a_o most_o subtle_a fine_a soft_a liquor_n which_o i_o esteem_v the_o true_a medullary_n and_o nervous_a juice_n which_o be_v contain_v in_o its_o proper_a capsula_fw-la and_o many_o of_o they_o collect_v into_o one_o fasciculus_fw-la at_o its_o egress_n out_o of_o the_o brain_n be_v there_o wrap_v up_o in_o more_o thick_a and_o strong_a cover_n make_v of_o the_o two_o outward_a membrane_n of_o the_o brain_n do_v constitute_v that_o part_n we_o call_v a_o nerve_n which_o have_v all_o its_o integument_n or_o membranous_a enclosure_n always_o keep_v turvid_v and_o tense_n by_o its_o contain_v fluid_a after_o a_o slow_a and_o leisurely_o manner_n continual_o dispense_v from_o the_o fountain_n and_o by_o its_o grow_v more_o taper_n towards_o the_o place_n of_o its_o termination_n by_o which_o mean_v it_o acquire_v a_o great_a straightness_n or_o narrowness_n of_o its_o pore_n ordinary_o call_v fibrillae_n it_o so_o fall_v out_o that_o all_o inward_a impression_n upon_o all_o occasion_n be_v the_o more_o easy_o and_o speedy_o transmit_v through_o it_o the_o very_a same_o notion_n also_o concern_v nutrition_n which_o in_o the_o true_a sense_n be_v only_o a_o apposition_n of_o part_n nourish_v to_o part_n pre-existent_a to_o be_v nourish_v in_o the_o rest_n of_o the_o part_n of_o the_o body_n i_o have_v think_v reasonable_a to_o entertain_v ever_o since_o by_o assistance_n of_o the_o microscope_n i_o have_v plain_o discern_v the_o vein_n to_o be_v only_a continuation_n of_o artery_n and_o the_o blood_n to_o run_v in_o the_o same_o channel_n various_o modify_v without_o the_o least_o suspicion_n of_o extravasation_n viz._n a_o continual_a transmission_n of_o nutritive_a juice_n out_o of_o the_o pore_n of_o artery_n after_o many_o wind_n like_o tindril_n of_o vine_n analogus_fw-la to_o which_o the_o red_a reticular_a body_n of_o lewenhoeck_n seem_v to_o be_v in_o the_o brain_n grow_v very_a capillary_n into_o certain_a tubuli_n or_o pore_n of_o a_o correspond_v bigness_n and_o figure_n make_v up_o the_o whole_a fleshy_a part_n of_o the_o body_n who_o substance_n when_o it_o be_v free_v by_o wash_v or_o injection_n of_o water_n we_o see_v to_o consist_v only_o of_o large_a and_o small_a blood-vessel_n and_o fibre_n which_o last_o whether_o nervous_a or_o membranous_a or_o such_o as_o relate_v to_o muscular_a motion_n common_o call_v carnous_a i_o suppose_v to_o be_v full_a of_o minute_n distinct_a vessel_n for_o the_o communicate_v and_o receive_v their_o proper_a liquor_n or_o fluid_n after_o the_o manner_n already_o express_v which_o as_o contain_v in_o the_o say_v tubuli_n or_o pore_n whilst_o they_o retain_v their_o natural_a constitution_n and_o proportion_n i_o presume_v it_o be_v which_o keep_v the_o habit_n of_o the_o body_n plump_a and_o vigorous_a the_o more_o thin_a and_o languid_a be_v perpetual_o carry_v back_o by_o the_o lymphatic_a vessel_n and_o a_o great_a part_n whole_o exterminate_v by_o mere_a simple_a transpiration_n which_o i_o adventure_v to_o think_v be_v not_o only_o superficial_a from_o the_o sudorific_a gland_n in_o the_o skin_n but_o also_o through_o the_o whole_a substance_n of_o inward_a part_n through_o small_a canaliculi_n or_o meantus_n in_o even_a the_o viscera_n themselves_o by_o which_o not_o unlikely_a we_o may_v guess_v at_o the_o mean_v of_o hypocrates_n when_o he_o say_v all_o thing_n be_v conspirable_a and_o transpirable_a the_o minuteness_n of_o vessel_n be_v that_o which_o have_v so_o embroil_v the_o thought_n of_o naturalist_n upon_o this_o subject_a and_o set_v reality_n so_o remote_a from_o the_o understanding_n otherwise_o it_o be_v no_o paradox_n to_o affirm_v the_o existence_n of_o vasa_n vasorum_fw-la almost_o to_o infinitum_fw-la some_o contain_v liquid_n in_o a_o continual_a more_o nimble_a circulation_n other_o in_o a_o gentle_a protrusion_n only_o which_o will_v appear_v altogether_o unsurprize_v if_o it_o be_v consider_v that_o the_o aforemention_v ingenious_a author_n have_v compute_v that_o even_o the_o 64th_o part_n of_o a_o myriad_o i._n e._n of_o a_o ten_o hundred_o thousand_o part_n of_o any_o substance_n but_o as_o big_a as_o a_o small_a grain_n of_o sand_n 46._o lew_v p._n 46._o can_v especial_o if_o of_o a_o rigid_a or_o inflexible_a nature_n enter_v those_o little_a vessel_n which_o be_v see_v in_o a_o retiform_a manner_n distribute_v among_o and_o fix_v to_o the_o aforesaid_a pellucid_a globule_n which_o swim_v in_o those_o little_a vessel_n be_v discover_v to_o make_v up_o both_o the_o cortical_a and_o medullary_a part_n of_o the_o brain_n as_o also_o further_o that_o even_o the_o tender_a coat_n of_o the_o small_a of_o those_o vessel_n which_o contain_v the_o aforesaid_a most_o minute_n globular_a fluid_a body_n leweâ—â—â—â—_n leweâ—â—â—â—_n be_v also_o full_a of_o yet_o far_o more_o minute_n vessel_n than_o they_o themselves_o be_v nay_o i_o be_o so_o far_o from_o be_v surprise_v at_o this_o kind_n of_o vascular_a constitution_n of_o part_n that_o i_o apprehend_v not_o how_o nature_n can_v otherwise_o have_v act_v without_o the_o consequence_n of_o a_o boundless_a accretion_n inasmuch_o as_o that_o when_o any_o part_n of_o a_o fluid_a become_v extravasate_n they_o necessary_o lose_v much_o of_o their_o progressive_a motion_n and_o if_o of_o a_o gross_a consistence_n be_v either_o proscribe_v by_o the_o wide_a passage_n or_o of_o a_o fine_a through_o those_o more_o straight_o and_o elaborate_a viz._n by_o transpiration_n so_o that_o what_o particle_n of_o matter_n soever_o continual_o arrive_v for_o either_o the_o augmentation_n or_o reparation_n of_o the_o part_n must_v unless_o the_o ruin_n of_o the_o subject_n do_v not_o first_o happen_v as_o we_o see_v it_o often_o do_v in_o disease_n proceed_v from_o such_o cause_n needs_o if_o not_o confine_v in_o vessel_n advance_v into_o a_o monstrous_a preternatural_a accumulation_n as_o be_v by_o reason_n of_o their_o gross_a consistence_n altogether_o uncapable_a of_o be_v carry_v off_o proportionable_o to_o the_o measure_n of_o their_o aggestion_n in_o the_o form_n of_o subtle_a steam_n or_o exhalation_n beside_o a_o rational_a explication_n of_o the_o natural_a function_n which_o this_o hypothesis_n furnish_v we_o with_o it_o also_o seem_v to_o clear_v a_o great_a many_o difficulty_n which_o have_v hitherto_o puzzle_v the_o most_o refine_a physiologist_n relate_v to_o the_o animal_n faculty_n such_o as_o be_v sensation_n and_o muscular_a motion_n of_o which_o last_o here_o in_o the_o next_o place_n the_o other_o be_v reserve_v for_o the_o last_o chapter_n which_o treat_v of_o sensation_n and_o motion_n in_o general_n chap._n xii_o of_o muscular_a motion_n to_o recite_v the_o opinion_n of_o other_o upon_o this_o subject_n will_v be_v a_o thing_n altogether_o useless_a here_o see_v a_o abstract_n of_o they_o be_v already_o extant_a in_o the_o philosophia_fw-la vetus_fw-la &_o nova_fw-la by_o mr._n colbert_n and_o beside_o the_o most_o correct_a of_o they_o be_v not_o only_o very_o unprobable_a but_o absolute_o repugnant_a to_o plain_a reason_n and_o matter_n of_o fact_n too_o a_o instance_n whereof_o you_o may_v have_v in_o dr._n willis_n tendinous_a reservatory_n of_o animal_n spirit_n 73._o willis_n de_fw-fr mot._n musc_n p._n 35._o mayow_v de_fw-fr mot_fw-fr musc_fw-la p._n 73._o in_o dr._n mayow_n twist_v or_o fiddlestring_n fibres_n with_o who_o of_o late_a mr._n regis_n agree_v by_o which_o the_o muscle_n must_v needs_o lose_v a_o great_a deal_n of_o its_o thickness_n than_o which_o nothing_o be_v more_o contrary_a to_o experiment_n in_o duncan_n first_o and_o second_o element_n of_o des_n chartes_n 90_o dunc_fw-la p._n 90_o which_o he_o make_v the_o animal_n spirit_n to_o consist_v of_o contrary_a even_o to_o the_o very_a principle_n of_o that_o great_a man_n philosophy_n which_o allow_v no_o elasticity_n to_o those_o body_n themselves_o though_o the_o author_n of_o it_o in_o all_o other_o likewise_o in_o dr._n croon_n make_v the_o blood_n itself_o 23._o croont_v p._n 23_o 24_o 25_o 33._o philos_fw-la câ—â—_n p._n 23._o as_o well_o as_o the_o animal_n spirit_n to_o be_v move_v by_o the_o power_n of_o the_o soul_n to_o any_o muscle_n as_o likewise_o the_o extravasation_n of_o those_o two_o liquor_n first_o into_o the_o space_n betwixt_o the_o fibre_n and_o then_o their_o introvasation_n into_o the_o fibre_n themselves_o again_o in_o order_n
may_v and_o doubtless_o do_v grow_v thick_a by_o the_o shorten_n of_o its_o fibre_n yet_o by_o that_o mean_v only_o it_o do_v not_o become_v stiff_a and_o hard_a so_o as_o we_o find_v muscle_n do_v when_o contract_v by_o any_o natural_a cause_n nor_o be_v there_o any_o necessity_n it_o shall_v do_v so_o according_a to_o any_o rule_n of_o mechanism_n see_v the_o fibre_n shorten_v only_o by_o their_o own_o elastic_a force_n when_o they_o find_v the_o circumambient_a space_n give_v way_n have_v no_o necessity_n of_o subintration_n of_o part_n which_o be_v always_o requisite_a to_o procure_v a_o stiffness_n or_o hardness_n to_o a_o part_n alter_v its_o dimension_n as_o muscle_n do_v from_o a_o long_o and_o thin_a to_o a_o short_a and_o thick_a circumference_n and_o upon_o this_o it_o must_v needs_o follow_v that_o in_o a_o muscle_n contract_v by_o involuntary_a force_n in_o which_o action_n the_o brain_n be_v altogether_o unconcern_v that_o stiffness_n or_o hardness_n then_o perceivable_a in_o it_o must_v needs_o be_v owe_v to_o the_o fluid_a or_o spirit_n in_o the_o antagonist_n muscle_n after_o the_o manner_n already_o explain_v transmit_v to_o it_o now_o to_o define_v what_o sort_n of_o thing_n this_o animal_n fluid_a so_o call_v be_v i_o see_v no_o occasion_n to_o frame_v any_o other_o idea_n of_o it_o than_o what_o we_o ordinary_o have_v of_o the_o pure_a liquor_n see_v the_o nerve_n be_v a_o substance_n which_o to_o the_o sense_n of_o either_o smell_n or_o taste_n discover_v very_o little_a else_o than_o what_o be_v insipid_a be_v always_o reckon_v among_o the_o least_o hot_a part_n of_o the_o body_n and_o doubtless_o far_o less_o warm_a in_o fish_n than_o we_o who_o yet_o have_v as_o great_a a_o stock_n of_o animal_n spirit_n as_o any_o other_o creature_n and_o this_o consideration_n may_v be_v it_o be_v that_o occasion_v a_o author_n to_o give_v the_o animal_n spirit_n the_o epithet_n of_o frigidiusculi_fw-la â—â—â—_o du_n his._n t._n l._n p._n â—â—â—_o it_o be_v plain_a enough_o that_o the_o vessel_n which_o contain_v this_o fluid_a be_v extreme_a minute_n and_o consequent_o the_o content_a must_v needs_o be_v of_o a_o very_a fine_a and_o depurate_a consistence_n though_o without_o much_o resemblance_n to_o either_o the_o aforesaid_a nimble_a saline_a or_o sulphurous_a production_n of_o the_o fire_n it_o be_v in_o a_o continual_a gentle_a direct_a motion_n though_o perhaps_o contain_v in_o curve_v or_o reticulate_v vessel_n from_o its_o original_a source_n to_o the_o end_n of_o the_o carnous_a fibres_fw-fr from_o whence_o it_o be_v convey_v into_o the_o membranous_a or_o tendinous_a production_n according_a as_o the_o fibre_n terminate_v and_o it_o may_v be_v by_o filtration_n only_o in_o which_o as_o in_o other_o and_o particular_o in_o glandulous_a part_n not_o subservient_fw-fr to_o muscular_a motion_n where_o nervous_a ramification_n be_v very_o copious_a whether_o it_o be_v of_o any_o other_o use_n than_o to_o keep_v the_o part_n in_o their_o proper_a tone_n in_o order_n to_o their_o regular_a discharge_n of_o the_o office_n of_o secretion_n must_v still_o remain_v a_o controversy_n notwithstanding_o all_o that_o have_v be_v yet_o advance_v against_o it_o inasmuch_o as_o wasting_n and_o numbness_n of_o part_n the_o common_a symptom_n of_o obstruct_a or_o divide_v nerve_n which_o doubtless_o by_o their_o hasten_v through_o such_o cause_n to_o muscular_a part_n give_v the_o first_o rise_v to_o that_o conjecture_n about_o the_o existence_n and_o use_v of_o that_o juice_n throughout_o the_o whole_a body_n be_v equal_o explicable_a by_o the_o want_n of_o tone_n as_o of_o that_o suppose_a liquor_n to_o the_o proof_n of_o all_o this_o a_o experiment_n frequent_o make_v do_v not_o a_o little_a contribute_v and_o that_o be_v the_o inject_v the_o artery_n of_o a_o dog_n or_o any_o such_o creature_n when_o dead_a upon_o which_o there_o immediate_o happen_v a_o contraction_n of_o the_o muscle_n according_a to_o the_o different_a strength_n of_o they_o viz._n of_o the_o extender_n in_o the_o hinder_a leg_n and_o of_o the_o bender_n in_o the_o before_o leg_n though_o the_o injection_n be_v only_o of_o cold_a water_n the_o reason_n of_o which_o effect_n in_o particular_a if_o it_o be_v remember_v what_o have_v be_v before_o observe_v viz._n that_o the_o blood-vessel_n do_v most_o certain_o enter_v the_o composition_n of_o the_o nerve_n themselves_o will_v not_o only_o become_v very_o easy_o explicable_a but_o the_o whole_a hypothesis_n at_o least_o very_o high_o probable_a if_o it_o be_v say_v that_o this_o speedy_a instantaneous_a reflux_n of_o the_o animal_n fluid_fw-la be_v oppose_v by_o the_o aforementioned_a constant_a direct_a motion_n it_o have_v from_o its_o source_n to_o the_o part_n to_o be_v move_v it_o be_v easy_a to_o reply_v that_o its_o slow_a direct_a motion_n that_o way_n be_v easy_o overcome_v and_o repel_v by_o the_o violent_a impulse_n of_o the_o forcibly-relaxed_n muscle_n the_o other_o way_n if_o further_o it_o be_v demand_v by_o what_o mean_v it_o so_o happen_v that_o in_o the_o instance_n before_o we_o of_o a_o arm_n bend_v by_o force_n that_o the_o refluent_a animal_n fluid_a be_v rather_o towards_o the_o muscle_n which_o by_o that_o mean_n than_o prove_v contract_v than_o towards_o any_o other_o whatsoever_o to_o all_o which_o it_o may_v indifferent_o have_v access_n i_o think_v the_o solution_n seem_v not_o difficult_a if_o it_o be_v consider_v that_o at_o the_o same_o time_n that_o the_o one_o muscle_n be_v force_v from_o the_o other_o be_v force_v into_o a_o contraction_n from_o whence_o it_o so_o fall_v out_o that_o the_o carnous_a tubulous_a fibres_fw-fr of_o the_o last_o which_o by_o be_v extend_v under_o the_o state_n of_o relaxation_n do_v lose_v their_o cavity_n must_v needs_o by_o their_o natural_a elasticity_n when_o free_v from_o the_o preponderant_a force_n of_o its_o antagonist_n acquire_v it_o again_o by_o which_o mean_v a_o space_n be_v make_v the_o repel_v fluid_a by_o the_o law_n of_o libration_n to_o say_v nothing_o of_o the_o habitual_a motion_n of_o the_o animal_n spirit_n or_o liquor_n by_o most_o author_n especial_o borellus_n urge_v as_o a_o reason_n for_o this_o effect_n must_v needs_o be_v drive_v thither_o in_o fine_a though_o i_o be_o not_o averse_a to_o think_v most_o of_o the_o phoenomena_fw-la relate_v to_o sensation_n and_o motion_n may_v be_v solve_v by_o this_o theory_n though_o of_o so_o small_a a_o apparatus_n yet_o i_o be_o so_o far_o from_o be_v fond_a of_o it_o that_o i_o have_v reserve_v a_o far_o great_a share_n of_o friendship_n for_o any_o other_o that_o may_v seem_v but_o of_o never_o so_o little_a more_fw-mi a_o kin_n to_o truth_n and_o submit_v all_o i_o have_v say_v on_o this_o subject_a to_o the_o candid_a sentiment_n of_o the_o more_o judicious_a proceedee_fw-mi in_o describe_v the_o other_o part_n of_o the_o brain_n as_o they_o offer_v themselves_o in_o the_o usual_a modern_a way_n of_o dissection_n chap._n xiii_o of_o the_o brain_n in_o particular_a this_o part_n be_v already_o describe_v and_o consider_v in_o general_a as_o consist_v of_o two_o different_a substance_n common_o call_v its_o similar_v part_n and_o the_o source_n of_o all_o sense_n and_o motion_n come_v now_o to_o be_v take_v notice_n of_o in_o a_o more_o particular_a manner_n with_o respect_n to_o its_o dissimilar_v part_n or_o conformation_n and_o this_o i_o think_v may_v best_a be_v do_v first_o according_a to_o its_o outward_a and_o next_o to_o its_o inward_a appearance_n outward_o it_o be_v convex_a and_o cortical_a exact_o divide_v into_o two_o hemisphere_n by_o the_o first_o process_n of_o the_o dura_n mater_n call_v falx_n from_o the_o bony_a process_n call_v crista_n galli_n forward_o to_o the_o very_a hindermost_a part_n of_o the_o cranium_fw-la where_o these_o two_o division_n be_v stretch_v over_o the_o cerebellum_fw-la from_o which_o part_n also_o it_o be_v perfect_o separate_v by_o the_o second_o process_n of_o the_o dura_n mater_n to_o the_o end_n it_o may_v not_o cause_v any_o prejudicial_a compression_n upon_o that_o part_n either_o by_o its_o weight_n or_o pulsation_n the_o foremost_a division_n be_v make_v only_o as_o deep_a as_o the_o corpus_fw-la callosum_fw-la the_o latter_a to_o the_o very_a medulla_n oblongata_fw-la itself_o it_o be_v further_a imperfect_o divide_v into_o four_o lobe_n two_o whereof_o which_o be_v the_o less_o be_v forward_o and_o two_o which_o be_v much_o big_a backward_o these_o division_n appear_v best_a in_o the_o invert_v or_o varolian_n dissection_n be_v mark_v out_o as_o it_o be_v by_o four_o branch_n of_o the_o carotid_v artery_n two_o before_o and_o one_o on_o each_o side_n these_o i_o call_v imperfect_a division_n of_o the_o brain_n because_o though_o the_o pia_n mater_n run_v betwixt_o they_o together_o with_o the_o aforesaid_a branch_n of_o the_o great_a artery_n yet_o they_o adhere_v by_o several_a fibres_n
annularis_fw-la and_o the_o thalami_fw-la nervorum_fw-la optici_fw-la partly_o cineritious_a and_o partly_o medullary_a and_o in_o fresh_a brain_n somewhat_o but_o very_o faint_o striate_v i_o know_v not_o of_o any_o part_n within_o the_o brain_n proper_o so_o call_v that_o be_v not_o already_o describe_v except_o a_o certain_a medullary_n chord_n at_o the_o end_n of_o the_o three_o ventricle_n and_o the_o valvula_n â—â—ajor_n vieussenius_fw-la commislura_fw-la crassioris_fw-la nervi_fw-la ae_n nula_fw-la of_o vieussenius_fw-la the_o first_o of_o these_o be_v a_o medullary_a process_n 83._o willis_n p._n 43_o col_fw-fr 2._o vituss_n p._n 83._o which_o join_v the_o corpora_fw-la striata_fw-la together_o according_a to_o dr._n willis_n by_o vieussenius_fw-la call_v comissura_fw-la crassioris_fw-la nervi_fw-la aemula_fw-la and_o according_a to_o he_o be_v the_o medium_fw-la or_o commissura_fw-la by_o which_o his_o geminum_fw-la centrum_fw-la semicirculare_a intervening_a between_o the_o two_o corpora_fw-la striata_fw-la superiora_fw-la anteriora_fw-la &_o posteriora_fw-la and_o his_o tractus_n medullaris_fw-la transversus_fw-la &_o obliquus_fw-la intervening_a between_o his_o two_o corpora_fw-la striata_fw-la inferiora_fw-la anteriora_fw-la and_o posteriora_fw-la have_v a_o communication_n with_o each_o other_o dr._n willis_n place_v this_o chord_n or_o commissure_v under_o the_o root_n of_o the_o fornix_n but_o it_o be_v always_o behind_o it_o 1._o willis_n p._n 6._o col_fw-fr 1._o though_o contiguous_a to_o it_o the_o second_o be_v the_o valvula_n major_a major_n the_o valâ—â—la_n major_n so_o call_v by_o vieussenius_fw-la 2_o vieus_n p._n 76._o willis_n p._n 49_o col_fw-fr 2._o pat_o 2_o but_o plain_o enough_o discover_v by_o dr._n willis_n long_v before_o and_o its_o proper_a use_n describe_v it_o be_v a_o thick_a especial_o in_o man_n medullary_n membrane_n adhere_v forward_o to_o the_o inferior_a part_n of_o the_o testiforme_a process_n a_o little_a behind_o that_o transverse_a medullary_n process_n from_o whence_o the_o pathetic_a or_o four_o pair_n of_o nerve_n arise_v lateral_o to_o the_o process_n ascend_v from_o the_o nates_n to_o the_o cerebellum_fw-la on_o its_o hindermost_a expansion_n to_o the_o foremost_a vermicular_a process_n of_o the_o cerebellum_fw-la and_o no_o where_o that_o i_o know_v of_o to_o any_o part_n of_o the_o pous_a varolii_n as_o vieussenius_fw-la will_v have_v it_o 3._o vieussen_n p._n 76._o id._n p._n 73._o par_fw-fr 3._o who_o seem_v to_o have_v mistake_v another_o part_n for_o that_o process_n unless_o just_o where_o the_o second_o process_n of_o the_o cerebellum_fw-la come_v out_o from_o thence_o which_o joint_o with_o its_o fellow_n process_n on_o the_o other_o side_n when_o they_o meet_v together_o after_o their_o transverse_a descent_n on_o the_o backpart_n of_o the_o medulla_n oblongata_fw-la do_v real_o make_v up_o that_o part_n which_o by_o willis_n be_v call_v and_o that_o no_o doubt_n from_o varolius_n protuberantia_fw-la annularis_fw-la and_o by_o other_o from_o its_o true_a author_n pons_n varolii_n by_o raise_v up_o the_o foremost_a abovementioned_a vermicular_a process_n of_o the_o cerebellum_fw-la with_o the_o finger_n it_o rare_o fail_v to_o come_v in_o sight_n but_o if_o not_o so_o it_o be_v easy_o show_v by_o blow_v into_o the_o foramen_fw-la situate_v under_o the_o pineal_a gland_n it_o be_v use_n according_a to_o vieussenius_fw-la 2._o vieus_n p._n 110._o par_fw-fr 2._o be_v to_o hinder_v any_o part_n of_o that_o water_n which_o fall_v into_o the_o hindermost_a foramen_fw-la behind_o the_o testes_fw-la from_o run_v into_o the_o four_o ventricle_n or_o vice_n versa_fw-la from_o the_o four_o ventricle_n into_o it_o or_o from_o get_v out_o on_o each_o side_n of_o the_o medulla_n oblongata_fw-la over_o the_o aforementioned_a process_n so_o as_o to_o fall_v down_o upon_o the_o nerve_n arise_v thereabouts_o below_o from_o the_o medulla_n oblongata_fw-la which_o last_o use_n be_v evident_o most_o true_a whether_o it_o be_v understand_v of_o water_n preternatural_o or_o accidental_o collect_v there_o for_o i_o must_v needs_o confess_v i_o can_v never_o find_v any_o there_o any_o more_o than_o i_o can_v in_o the_o three_o ventricle_n in_o subject_n free_a from_o those_o disease_n incident_a to_o that_o part_n as_o have_v before_o already_o be_v remark_v p._n 82_o but_o as_o to_o that_o relate_n to_o the_o passage_n from_o the_o cerebellum_fw-la to_o the_o last_o or_o three_o foramen_fw-la i_o much_o doubt_v the_o truth_n of_o it_o for_o many_o reason_n of_o which_o this_o be_v one_o viz._n that_o the_o plexus_fw-la choroeides_n in_o the_o four_o ventricle_n together_o with_o the_o adjacent_a part_n be_v of_o the_o same_o texture_n as_o the_o other_o be_v in_o and_o about_o the_o two_o lateral_a one_o of_o the_o brain_n render_v it_o as_o reasonable_a to_o suppose_v that_o water_n may_v be_v collect_v there_o as_o in_o other_o part_n of_o the_o brain_n nay_o that_o it_o be_v so_o he_o himself_o also_o allow_v as_o matter_n of_o fact_n and_o consequent_o as_o necessary_a to_o have_v a_o place_n of_o vent_n for_o the_o water_n whenever_o it_o happen_v to_o gather_v there_o as_o it_o be_v for_o that_o which_o be_v at_o any_o time_n get_v into_o the_o other_o ventricles_n and_o consequent_o in_o the_o next_o place_n i_o do_v not_o see_v how_o this_o tender_a film_n can_v be_v able_a to_o intercept_v a_o passage_n of_o so_o search_v a_o body_n as_o water_n at_o any_o time_n force_v against_o it_o notwithstanding_o the_o suppose_a declivity_n of_o this_o part_n which_o in_o man_n by_o reason_n of_o the_o largeness_n of_o the_o subjacent_a prominent_a annular_a process_n be_v very_o inconsiderable_a which_o by_o pulsation_n must_v needs_o happen_v whenever_o we_o suppose_v that_o cavity_n fill_v with_o it_o and_o in_o the_o last_o place_n notwithstanding_o all_o the_o contrivance_n the_o aforesaid_a author_n have_v show_v in_o convey_v the_o gross_a part_n of_o the_o water_n which_o as_o be_v before_o note_v he_o grant_v may_v be_v nay_o constant_o be_v depose_v there_o from_o the_o gland_n of_o the_o plexus_fw-la choroeides_n here_o situate_a by_o the_o extremity_n of_o vein_n out_o of_o this_o ventricle_n 111_o vieus_n p._n 111_o i_o be_o suspicious_a if_o there_o be_v no_o spedy_a reductory_n passage_n find_v out_o there_o will_v frequent_o happen_v very_o great_a mischief_n to_o the_o medulla_n spinalis_fw-la itself_o and_o the_o nerve_n spring_v from_o it_o see_v the_o extremity_n of_o that_o ventricle_n call_v the_o calamus_fw-la scriptorius_fw-la be_v there_o part_v from_o the_o spinal_a marrow_n behind_o it_o but_o only_o by_o the_o pia_fw-la mater_fw-la which_o notwithstanding_o it_o be_v there_o double_a as_o it_o be_v also_o quite_o down_o the_o whole_a spine_n lest_o perhaps_o the_o water_n shall_v fall_v down_o upon_o the_o nerve_n which_o arise_v from_o it_o too_o ready_o yet_o upon_o such_o a_o occasion_n may_v be_v easy_o suppose_v subject_n to_o violation_n not_o to_o say_v any_o thing_n of_o the_o high_a improbability_n of_o any_o such_o conveyance_n at_o all_o by_o the_o vein_n see_v that_o in_o a_o natural_a state_n they_o be_v always_o as_o have_v be_v already_o observe_v continuation_n only_o of_o artery_n it_o be_v true_a this_o may_v hinder_v the_o fall_n of_o water_n into_o the_o four_o ventricle_n by_o reason_n of_o a_o passage_n under_o the_o nates_n before_o mention_v by_o vienssenius_n call_v aquae_fw-la emissarium_fw-la so_o near_o at_o hand_n to_o receive_v it_o when_o it_o find_v its_o further_a passage_n that_o way_n obstruct_v by_o the_o interposition_n and_o resistance_n of_o this_o valve_n and_o for_o the_o same_o reason_n doubtless_o it_o be_v that_o in_o vieussenius_n experiment_n which_o he_o bring_v for_o a_o proof_n of_o his_o opinion_n no_o water_n be_v find_v in_o the_o sourth_fw-mi ventricle_n 2._o vieus_n p_o 110_o par_fw-fr 2._o it_o have_v get_v a_o passage_n immediate_o upon_o its_o non-admittance_n by_o that_o valve_n to_o convey_v it_o another_o way_n which_o by_o reason_n of_o the_o steepness_n thereof_o be_v do_v much_o more_o ready_o chap._n fourteen_o of_o the_o cerebellum_fw-la the_o cerebellum_fw-la fall_v next_o in_o order_n to_o our_o consideration_n in_o describe_v of_o which_o i_o hope_v a_o great_a deal_n of_o pain_n may_v reasonable_o be_v spare_v see_v all_o that_o have_v be_v already_o speak_v of_o the_o cortical_a or_o cineritious_a part_n of_o the_o brain_n as_o also_o of_o its_o medullary_a part_n be_v equal_o applicable_a to_o the_o cerebellum_fw-la nor_o be_v what_o have_v be_v say_v already_o of_o the_o plexus_fw-la choroeides_n in_o the_o ventricles_n of_o the_o one_o part_n less_o applicable_a to_o that_o plexus_fw-la in_o this_o cerebellum_fw-la the_o plexus_fw-la choroeides_n of_o the_o cerebellum_fw-la this_o plexus_fw-la choroeides_n in_o the_o four_o ventricle_n begin_v to_o be_v glandulous_a just_a under_o the_o eight_o pair_n of_o nerve_n from_o whence_o it_o run_v up_o on_o the_o side_n of_o the_o caudex_fw-la medullaris_fw-la to_o the_o chordal_n or_o three_o
be_v that_o of_o instinct_n relate_v to_o the_o sensative_a soul_n or_o a_o aptitude_n of_o the_o nervous_a structure_n to_o act_v according_a to_o the_o impression_n make_v upon_o the_o nerve_n either_o from_o within_o or_o from_o without_o and_o so_o may_v be_v say_v to_o depend_v on_o the_o presence_n of_o such_o cause_n as_o be_v supervenient_a and_o extraneous_a to_o nature_n suitable_a to_o the_o impression_n whereof_o the_o animal_n either_o pursue_v or_o avoid_v the_o object_n obey_v or_o resist_v the_o impulse_n now_o i_o take_v it_o for_o grant_v that_o no_o body_n will_v deny_v but_o that_o the_o nerve_n by_o virtue_n whereof_o these_o last_o action_n of_o instinct_n be_v perform_v whether_o thâ—y_v â—râ—se_v from_o the_o cerebrum_fw-la of_o cerebellum_fw-la be_v equal_o under_o the_o command_n of_o the_o soul_n or_o else_o as_o i_o say_v before_o the_o brain_n in_o those_o creature_n be_v to_o no_o purpose_n and_o of_o this_o sort_n i_o reckon_v all_o those_o action_n in_o rational_a creature_n of_o instinct_n before_o they_o have_v attain_v to_o the_o use_n of_o their_o understanding_n from_o any_o sort_n of_o impression_n or_o inadvertent_n and_o inconsult_v when_o he_o have_v the_o control_a power_n of_o reason_n allow_v he_o and_o make_v no_o use_n of_o it_o such_o as_o be_v call_v habitual_a which_o at_o first_o be_v produce_v by_o command_n of_o the_o rational_a part_n only_o but_o through_o frequent_a repetition_n at_o last_o without_o any_o command_n from_o that_o out_o of_o a_o blind_a obedience_n to_o a_o bare_a impulse_n from_o the_o object_n or_o last_o such_o as_o happen_v when_o he_o have_v altogether_o lose_v the_o use_n of_o it_o as_o in_o sleep_n or_o distraction_n in_o which_o last_o case_n it_o will_v be_v very_o difficult_a to_o distinguish_v he_o from_o a_o mere_a machine_n or_o automaton_n now_o from_o what_o have_v be_v say_v i_o can_v but_o think_v it_o plain_a that_o many_o of_o the_o action_n before_o speak_v of_o in_o dr._n willis_n sense_n by_o he_o call_v involuntary_a as_o proceed_v from_o the_o dominion_n of_o the_o cerebellum_fw-la only_o such_o as_o he_o call_v the_o various_a configuration_n of_o the_o face_n from_o some_o impulse_n or_o provocation_n in_o the_o viscera_n or_o elsewhere_o erect_v the_o ear_n turn_v the_o neck_n and_o eye_n about_o sudden_a shriek_n and_o outcry_n upon_o some_o extraordinary_a frightful_a object_n surprise_o affect_v one_o sense_n or_o another_o furnish_v with_o either_o such_o nerve_n as_o he_o suppose_v to_o be_v altogether_o under_o the_o command_n of_o the_o cerebellum_fw-la as_o the_o five_o and_o seven_o or_o else_o to_o have_v a_o very_a near_o correspondence_n with_o that_o part_n by_o virtue_n of_o vicinity_n as_o the_o nine_o do_v more_o true_o proceed_v from_o that_o perceptive_a faculty_n or_o to_o use_v his_o own_o word_n that_o part_n of_o the_o soul_n he_o have_v confine_v to_o that_o part_n of_o the_o medullary_n system_n call_v the_o cerebrum_fw-la inasmuch_o as_o in_o reasonable_a creature_n they_o may_v and_o common_o be_v suspend_v as_o well_o as_o the_o nerve_n they_o slow_a from_o sometime_o make_v use_n of_o as_o instrument_n of_o voluntary_a motion_n by_o it_o also_o and_o to_o think_v the_o contrary_a be_v as_o much_o as_o to_o say_v that_o when_o any_o body_n happen_v to_o express_v any_o of_o the_o aforementioned_a involuntary_a act_n or_o but_o hit_v his_o bedfellow_n a_o box_n of_o the_o ear_n whilst_o asleep_o all_o these_o must_v be_v allow_v to_o proceed_v only_o from_o the_o organ_n of_o involuntary_a motion_n call_v the_o cerebellum_fw-la and_o of_o this_o kind_n also_o in_o a_o great_a measure_n i_o reckon_v respiration_n concern_v which_o i_o can_v easy_o be_v bring_v to_o think_v it_o satisfactory_o explain_v by_o dr._n willis_n from_o the_o energy_n of_o those_o animal_n spirit_n which_o flow_v only_o from_o the_o cerebellum_fw-la in_o the_o par_fw-fr vagum_fw-la after_o the_o same_o manner_n they_o do_v to_o the_o heart_n by_o the_o intercostal_n and_o that_o pair_n for_o its_o pulsation_n and_o as_o only_o under_o the_o command_n of_o the_o soul_n to_o be_v stop_v now_o and_o then_o as_o it_o please_v by_o virtue_n of_o some_o nerve_n communicate_v to_o the_o intercostal_n muscle_n and_o diaphragm_n the_o chief_a instrument_n of_o breathe_v from_o the_o spina_n dorsi_fw-la i_o be_o therefore_o rather_o incline_v to_o think_v this_o motion_n be_v of_o the_o other_o different_a kind_n before_o speak_v of_o under_o the_o title_n of_o instinct_n proceed_v from_o a_o extraneous_a supervenient_a cause_n act_v conformable_o to_o the_o course_n of_o nature_n in_o ooth_a case_n of_o the_o same_o kind_n as_o in_o hunger_n and_o thirst_n and_o the_o like_a where_o the_o obtain_v the_o design_a end_n or_o effect_n render_v the_o part_n from_o whence_o come_v the_o motion_n for_o some_o time_n insensible_a of_o the_o impression_n and_o where_o after_o the_o cease_v of_o the_o effect_n or_o motion_n the_o sense_n of_o the_o impression_n revive_v again_o whence_o there_o happen_v a_o equal_a reciprocation_n between_o the_o sense_n and_o fruition_n or_o sense_n and_o motion_n to_o apply_v this_o account_n of_o the_o manner_n and_o reason_n of_o the_o spirit_n act_v upon_o the_o stomach_n and_o parâ—â—te_n in_o relation_n to_o hunger_n and_o thirst_n to_o that_o of_o the_o systole_n and_o diastole_n of_o the_o lung_n or_o respiration_n it_o will_v be_v needful_a to_o take_v notice_n that_o in_o a_o infant_n unborn_a there_o be_v no_o respiration_n but_o yet_o there_o be_v a_o cerebellum_fw-la and_o that_o if_o this_o sort_n of_o motion_n call_v instinct_n which_o i_o make_v to_o differ_v from_o pure_o natural_a motion_n such_o as_o be_v contemporary_a with_o even_o the_o first_o live_v rudiment_n of_o the_o individual_a be_v altogether_o and_o sole_o owe_v to_o the_o cerebellum_fw-la after_o the_o manner_n of_o that_o of_o the_o heart_n then_o of_o necessity_n the_o child_n in_o the_o womb_n ought_v to_o respire_v but_o be_v satisfy_v of_o the_o contrary_a it_o remain_v that_o we_o account_v for_o its_o respiration_n another_o way_n which_o be_v as_o afore_o note_v through_o the_o presence_n or_o absence_n of_o the_o first_o move_v cause_n or_o impulse_n which_o i_o make_v or_o suppose_v to_o be_v any_o thing_n impress_v the_o nerve_n propagate_v through_o the_o organ_n of_o breathe_v so_o as_o to_o transmit_v the_o impression_n from_o within_o to_o the_o perceptive_a faculty_n preside_v both_o over_o the_o cerebrum_fw-la and_o cerebellum_fw-la too_o to_o the_o end_n the_o spirit_n may_v from_o thence_o forthwith_o be_v command_v into_o such_o other_o nerve_n as_o act_v those_o muscle_n which_o serve_v for_o enlarge_a the_o whole_a cavity_n of_o the_o thorax_n in_o order_n to_o let_v the_o air_n into_o the_o lung_n more_o plentiful_o which_o be_v the_o thing_n aim_v at_o by_o nature_n and_o these_o be_v the_o intercostal_n muscle_n and_o diaphragm_n now_o it_o be_v easy_a to_o conceive_v that_o whilst_o the_o child_n be_v enclose_v in_o its_o mother_n belly_n there_o be_v not_o that_o occasion_n for_o respiration_n as_o when_o it_o be_v bear_v the_o main_a stream_n of_o blood_n all_o that_o while_o find_v no_o passage_n through_o they_o and_o that_o which_o do_v by_o the_o ruyshian_a artery_n make_v of_o juice_n much_o more_o mild_a and_o cool_a the_o native_a heat_n be_v little_a and_o the_o aliment_n mere_a chyle_n or_o milk_n from_o whence_o it_o fall_v out_o that_o the_o pulmoniâ—k_a nerve_n go_v altogether_o unprovoke_v which_o after_o birth_n be_v continual_o otherwise_o impress_v or_o provoke_v by_o the_o hot_a effluvium_n of_o blood_n new_o breed_v of_o strong_a food_n and_o by_o a_o strong_a native_a heat_n and_o whole_o flow_v through_o they_o which_o heat_n continual_o as_o the_o child_n acquire_v a_o great_a maturity_n increase_a may_v for_o aught_o i_o know_v not_o a_o little_a contribute_v by_o way_n of_o natural_a impulse_n to_o its_o exclusion_n the_o truth_n of_o this_o will_v the_o more_o clear_o appear_v to_o any_o who_o will_v take_v the_o pain_n to_o consider_v well_o of_o the_o structure_n of_o part_n in_o child_n unborn_a in_o who_o the_o usual_a circuit_n of_o blood_n through_o the_o lung_n which_o be_v design_v for_o rarify_n and_o perfect_v the_o mixture_n of_o blood_n and_o chyle_n be_v deny_v as_o also_o through_o the_o liver_n serve_v chief_o for_o separate_v that_o gross_a excrement_n the_o gall_n not_o breed_v at_o least_o in_o any_o proportion_n in_o a_o infant_n unborn_a and_o in_o lieu_n of_o these_o other_o passage_n which_o become_v altogether_o unnecessary_a after_o birth_n provide_v by_o nature_n after_o a_o short_a and_o more_o compendious_a way_n viz_o by_o the_o foramen_fw-la ovale_n betwixt_o the_o vena_fw-la cava_fw-la and_o vena_fw-la pulmon_n and_o tubulus_n arteriosus_n between_o the_o art_n pulm._n and_o aorta_n in_o the_o lung_n and_o