to_o make_v myself_o a_o party_n on_o either_o side_n at_o this_o time_n see_v the_o fineness_n of_o structure_n and_o dignity_n of_o function_n be_v sufficient_a to_o give_v preference_n to_o one_o above_o another_o and_o to_o render_v it_o more_o worthy_a of_o a_o particular_a consideration_n and_o this_o part_n i_o take_v to_o be_v the_o brain_n the_o delicacy_n of_o who_o structure_n be_v such_o that_o with_o no_o little_a resemblance_n to_o its_o divine_a author_n whilst_o it_o give_v we_o the_o great_a and_o clear_a discovery_n of_o other_o thing_n lie_v most_o conceal_v itself_o and_o see_v all_o that_o mystic_a knowledge_n which_o in_o ancient_a time_n in_o the_o eye_n especial_o of_o the_o vulgar_a appear_v mere_a necromancy_n or_o witchcraft_n as_o well_o as_o all_o the_o curious_a discovery_n of_o more_o modern_a age_n upon_o the_o whole_a subject_n of_o nature_n now_o go_v under_o the_o more_o familiar_a and_o proper_a term_n of_o refine_a sense_n or_o philosophy_n have_v be_v mere_o owe_v to_o a_o more_o accurate_a knowledge_n of_o the_o part_n and_o modification_n of_o matter_n i_o see_v not_o any_o more_o likely_a way_n of_o conquer_a the_o difficulty_n yet_o behind_o upon_o any_o particular_a subject_n than_o the_o endeavour_v after_o a_o further_a and_o more_o nice_a scrutiny_n into_o it_o by_o such_o mean_n and_o experiment_n as_o serve_v to_o bring_v its_o most_o minute_n part_n and_o texture_n under_o the_o test_n of_o sense_n which_o so_o assist_v do_v the_o same_o office_n to_o the_o discern_a faculty_n at_o good_a artificial_a glass_n do_v to_o it_o bring_v the_o object_n and_o judgement_n to_o such_o a_o nearness_n that_o even_o the_o first_o link_n of_o the_o chain_n become_v discernible_a and_o the_o mechanical_a proceed_n of_o nature_n so_o high_o instructive_a to_o the_o understanding_n in_o its_o find_v out_o and_o assign_v proper_a cause_n to_o effect_n much_o more_o obvious_a and_o intelligible_a i_o shall_v therefore_o treat_v this_o noble_a part_n after_o the_o aforesaid_a manner_n with_o all_o the_o justice_n i_o can_v leave_v those_o invisible_a and_o almost_o divine_a thing_n call_v animal_n spirit_n to_o be_v treat_v of_o more_o at_o large_a by_o those_o more_o illuminate_v philosopher_n who_o see_v best_a when_o their_o eye_n be_v put_v and_o content_v myself_o with_o make_v a_o inquiry_n into_o and_o give_v a_o description_n of_o whatsoever_o upon_o this_o subject_a by_o dissection_n shall_v offer_v itself_o as_o a_o object_n of_o our_o sense_n the_o anatomy_n of_o the_o brain_n chap._n 1._o of_o the_o anatomy_n of_o the_o brain_n the_o topmost_a part_n or_o olla_fw-mi of_o the_o cranium_fw-la be_v remove_v the_o first_o part_n of_o the_o brain_n that_o come_v in_o view_n be_v the_o dura_n mater_n which_o with_o the_o subjacent_a pia_n mater_n be_v account_v only_o a_o improper_a part_n of_o the_o brain_n strict_o so_o call_v however_o of_o great_a use_n in_o many_o respect_n to_o it_o it_o be_v by_o spigelius_n and_o other_o anatomist_n reckon_v and_o i_o think_v not_o undeserved_o the_o thick_a and_o hard_a membrane_n of_o the_o whole_a body_n enclose_v the_o whole_a brain_n proper_o so_o call_v somewhat_o lose_o stick_v almost_o inseparable_o to_o the_o basis_n of_o the_o cranium_fw-la and_o to_o the_o top_n and_o side_n under_o the_o coronal_z sagittal_n and_o lamdocid_a suture_n very_o fast_o by_o the_o sinus_n who_o description_n will_v come_v in_o another_o place_n in_o some_o place_n of_o the_o upper_a part_n of_o the_o cranium_fw-la which_o on_o each_o side_n of_o the_o sagittal_n suture_a or_o vertex_fw-la be_v call_v ossa_n bregmatis_fw-la it_o adhere_v not_o to_o the_o bone_n notwithstanding_o the_o positive_a opinion_n of_o van_n roonhuyse_n 149._o roonh_o p._n 149._o in_o his_o leiter_n to_o du_n foy_n to_o the_o contrary_a who_o for_o that_o very_a reason_n will_v fain_o take_v away_o in_o a_o great_a measure_n the_o use_n of_o the_o trepan_n and_o trefoyne_n and_o altogether_o the_o use_n of_o the_o instrument_n call_v decussorium_fw-la which_o skilful_a surgeon_n do_v often_o make_v use_n of_o to_o make_v room_n for_o the_o discharge_n of_o subsided_a matter_n below_o the_o fracture_v place_n in_o many_o accident_n of_o the_o brain_n it_o be_v very_o discernable_o double_a as_o columbus_n and_o several_a other_o former_o 348_o col._n p._n 348_o and_o vieussenius_fw-la late_o have_v observe_v have_v very_o strong_a and_o large_a fibre_n on_o the_o inside_n but_o very_o small_a 3._o vienss_n p._n 3._o and_o hardly_o visible_a on_o that_o side_n next_o the_o skull_n as_o appear_v to_o i_o after_o have_v first_o let_v it_o lie_v a_o little_a time_n in_o boll_n or_o at_o least_o very_a scald_a water_n but_o as_o to_o the_o distribution_n of_o the_o double_a sort_n of_o fibres_n on_o each_o side_n this_o membrane_n i_o can_v not_o by_o any_o mean_n find_v they_o agree_v with_o the_o description_n vieussenius_fw-la have_v give_v of_o they_o as_o run_v in_o a_o oblique_a semicircular_a manner_n external_o from_o before_o backward_o and_o in_o the_o same_o figure_n internal_o from_o behind_o forward_o but_o far_o otherwise_o on_o the_o inside_n where_o they_o be_v very_o strong_a they_o seem_v manifest_o to_o have_v three_o original_n from_o the_o top_n part_n of_o the_o processus_n falcatus_fw-la before_o behind_z and_o in_o its_o middle_n those_o before_o run_v in_o a_o curve_v manner_n backward_o half_o the_o length_n and_o a_o great_a width_n of_o the_o dura_n mater_n and_o those_o behind_o run_v after_o the_o same_o manner_n forward_o with_o this_o difference_n that_o a_o great_a number_n of_o they_o bend_v soon_o after_o their_o rise_n from_o that_o process_n in_o a_o kind_n of_o a_o semilunary_a way_n to_o it_o again_o a_o little_a on_o this_o side_n the_o rise_n of_o the_o middle_a series_n of_o fibres_n other_o of_o they_o make_v a_o big_a arch_n after_o have_v stretch_v themselves_o wide_o upon_o the_o dura_n mater_n bend_v back_o again_o to_o and_o terminate_v in_o the_o falx_n a_o little_a beyond_o the_o rise_n of_o the_o aforesaid_a middle_a series_n of_o fibres_n those_o from_o the_o middle_a part_n of_o the_o falx_n run_v backward_o but_o less_o curve_v than_o the_o rest_n terminate_n as_o the_o fibre_n which_o arise_v backward_o do_v at_o some_o distance_n from_o the_o process_n in_o the_o inward_a superficies_n of_o the_o dura_n mater_n as_o to_o those_o belong_v to_o the_o exernal_a side_n or_o second_v lamina_fw-la of_o the_o dura_n mater_n they_o be_v extreme_a small_a and_o obscure_a run_v from_o behind_o forward_o beside_o these_o there_o be_v no_o less_o remarkable_a one_o belong_v to_o the_o falx_n itself_o of_o two_o sort_n of_o order_n the_o one_o run_v straight_o about_o half_a the_o length_n of_o it_o on_o its_o upper_a part_n from_o before_o backward_o the_o other_o transverse_n from_o the_o inferior_a or_o five_o sinus_n to_o the_o superior_a or_o three_o on_o the_o hinder_a part_n of_o the_o process_n and_o be_v most_o conspicuous_a there_o as_o the_o other_o be_v towards_o its_o foremost_a part_n as_o to_o the_o use_v of_o those_o fibre_n it_o may_v be_v remember_v that_o this_o membrane_n consist_v of_o two_o lamina_n between_o which_o the_o vein_n which_o reduce_v the_o blood_n from_o the_o artery_n which_o furnish_v the_o whole_a brain_n with_o it_o run_v for_o some_o space_n after_o the_o manner_n of_o the_o ureter_n in_o the_o bladder_n in_o large_a trunk_n before_o they_o enter_v the_o sinus_n so_o that_o the_o fibrous_a constitution_n of_o this_o membrane_n here_o where_o the_o blood-vessel_n be_v large_a together_o with_o the_o curve_v entrance_n of_o they_o into_o the_o sinus_n especial_o in_o a_o erect_a position_n of_o the_o body_n do_v the_o office_n of_o valve_n support_v the_o weight_n and_o promote_v the_o ascent_n of_o the_o blood_n but_o that_o which_o be_v most_o considerable_a be_v this_o that_o if_o the_o inward_a lamina_fw-la of_o this_o part_n which_o make_v the_o inferior_a and_o lateral_a part_n of_o the_o sinus_n be_v not_o in_o some_o measure_n furnish_v with_o additional_a strength_n on_o this_o side_n suitable_a to_o that_o which_o it_o have_v on_o the_o other_o by_o reason_n of_o its_o cohesion_n to_o the_o skull_n the_o blood_n which_o be_v continual_o run_v through_o it_o with_o no_o small_a rapidity_n especial_o in_o great_a plenitude_n of_o the_o vessel_n or_o preternatural_a ebulition_n will_v frequent_o burst_v out_o or_o at_o least_o cause_n such_o distention_n as_o can_v not_o but_o be_v very_o injurious_a to_o a_o part_n so_o very_o exquisite_o sensible_a yet_o notwithstanding_o though_o nature_n seem_v plain_o to_o have_v make_v a_o double_a provision_n against_o such_o accident_n by_o the_o transverse_a ligament_n within_o the_o sinus_n and_o these_o strong_a and_o numerous_a fibre_n without_o i_o have_v rare_o open_v any_o strangle_a body_n where_o some_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
brain_n bear_v a_o over-proportion_n to_o the_o trunk_n from_o whence_o they_o come_v and_o consequent_o must_v according_a to_o the_o aforesaid_a observation_n of_o malpighius_n in_o his_o letter_n to_o fracassatus_n receive_v the_o blood_n bring_v thither_o far_o more_o free_o and_o plentiful_o beside_o the_o cervical_a artery_n here_o be_v so_o far_o from_o be_v conical_a that_o be_v make_v up_o of_o two_o vertebral_a artery_n join_v together_o it_o be_v much_o wide_a than_o either_o of_o they_o single_a as_o appear_v plain_o in_o the_o figure_n g._n fig_n 1._o g._n and_o consequent_o will_v have_v carry_v away_o the_o blood_n forward_o from_o the_o spinal_a artery_n more_o free_o have_v not_o nature_n order_v the_o structure_n of_o vessel_n after_o another_o manner_n here_o than_o it_o do_v in_o other_o part_n of_o the_o body_n where_o there_o be_v not_o the_o same_o necessity_n of_o contrivance_n one_o more_o branch_n i_o take_v leave_n to_o mention_v only_o upon_o the_o score_n of_o its_o never_o hitherto_o have_v be_v take_v notice_n of_o by_o any_o and_o that_o be_v a_o small_a artery_n attend_v with_o a_o vein_n pass_v through_o the_o lateral_a part_n of_o the_o os_fw-mi cuneiforme_a which_o constitute_v the_o back_n part_n of_o the_o orbite_n of_o the_o eye_n just_a under_o a_o very_a little_a process_n of_o that_o bone_n which_o either_o by_o reason_n of_o its_o size_n have_v escape_v be_v see_v or_o inconsiderable_a use_n be_v never_o before_o as_o far_o as_o i_o know_v think_v worth_a the_o mention_v and_o this_o upon_o raise_v the_o fore_a lobe_n of_o the_o brain_n offer_v itself_o to_o the_o eye_n of_o any_o heedful_a observer_n chap._n v._o of_o the_o sinus_n belong_v to_o the_o brain_n a_o three_o sort_n of_o vessel_n offer_v themselves_o next_o to_o our_o consideration_n under_o the_o general_a name_n of_o sinus_n these_o former_o be_v reckon_v only_o four_o to_o which_o vesalius_n add_v a_o five_o at_o the_o bottom_n of_o the_o falx_n f._n vesal_n p._n 758_o fig._n 3._o f._n by_o he_o only_o call_v a_o vein_n which_o though_o frequent_o find_v yet_o in_o some_o subject_n be_v want_v 2._o board_n p._n 105._o par_fw-fr 2._o bourdon_n mention_n two_o more_o at_o the_o bottom_n of_o each_o side_n the_o side_n the_o second_o process_n of_o the_o dura_n mater_n under_o the_o lateral_a one_o which_o i_o never_o see_v but_o once_o and_o i_o be_o apt_a to_o think_v with_o vieussenius_fw-la be_v most_o common_o want_v vieussenius_fw-la describe_v four_o more_o 11._o vieuss_n p._n 6._o par_fw-fr 5._o fall_n tom_n 1._o p_o 114._o vid._n vid._n p._n 117._o cap._n 10._o p_o 310._o cap._n 11._o which_o i_o find_v long_o before_o take_v notice_n of_o and_o exact_o describe_v by_o falloppius_n and_o after_o he_o though_o but_o rude_o by_o that_o laborious_a collector_n vidus_fw-la vidius_fw-la i_o think_v i_o can_v show_v one_o more_o but_o be_v their_o number_n what_o it_o will_v i_o judge_v it_o reasonable_a to_o look_v upon_o they_o no_o other_o than_o vein_n whether_o we_o consider_v they_o in_o respect_n to_o either_o office_n or_o structure_n all_o the_o business_n be_v to_o consider_v and_o show_v for_o what_o end_n they_o appear_v as_o such_o large_a channel_n into_o which_o all_o the_o vein_n of_o the_o brain_n like_v so_o many_o small_a rivulet_n after_o a_o unusual_a manner_n do_v empty_a themselves_o and_o that_o i_o will_v endeavour_v to_o do_v after_o have_v first_o show_v their_o several_a respective_a situation_n the_o first_o two_o be_v call_v laterales_fw-la bb._n fig_n 4._o bb._n which_o run_v within_o a_o strong_a duplicature_n of_o the_o hinder_a process_n of_o the_o dura_n mater_n down_o upon_o the_o os_fw-mi occipitale_fw-it over_o the_o cerebellum_fw-la till_o in_o their_o further_a descent_n after_o a_o tortuous_a manner_n upon_o the_o low_a production_n of_o the_o ossa_n petrosa_n they_o wind_n under_o they_o in_o order_n to_o their_o passage_n out_o of_o the_o cranium_fw-la at_o the_o eight_o hole_n cc._n fig_n 2._o cc._n common_a to_o the_o eight_o pair_n of_o nerve_n go_v out_o bb_n ibid._n bb_n the_o three_o branch_n of_o artery_n belong_v to_o the_o dura_n mater_n and_o the_o internal_a jugular_a come_n in_o which_o be_v through_o two_o round_a bony_a cell_n in_o the_o os_fw-la petrosa_fw-la l._n ibid._n l._n just_a under_o the_o styloeid_v process_n into_o the_o internal_a jugular_a vein_n into_o which_o together_o with_o the_o vertebral_n all_o the_o rest_n of_o the_o vein_n and_o sinus_n belong_v to_o the_o brain_n discharge_v the_o refluent_a blood_n the_o next_o be_v call_v the_o three_o or_o longitudinal_n one_o etc._n fig_n 4._o aa_o etc._n etc._n from_o its_o rise_n at_o the_o bony_a process_n call_v crista_n galli_n and_o progress_n the_o whole_a length_n of_o the_o brain_n to_o the_o hinder_a and_o somewhat_o decline_a part_n of_o the_o occipital_a bone_n where_o it_o seem_v to_o be_v cleave_v into_o the_o two_o lateral_a one_o into_o this_o three_o sinus_n not_o only_o the_o internal_a vein_n of_o the_o brain_n itself_o be_v insert_v but_o also_o some_o of_o those_o belong_v to_o its_o outward_a integument_n which_o falloppius_n first_o 2._o fallop_n tom_fw-mi 1._o p._n 82._o par_fw-fr 3_o vitus_n p._n 10._o par_fw-fr 2._o wep_v p_o 42._o par_fw-fr 2._o one_o of_o the_o luminary_n of_o anatomy_n observe_v and_o after_o he_o vieussenius_fw-la which_o be_v by_o wepfer_n mistaken_o take_v for_o artery_n who_o nevertheless_o for_o aught_o i_o know_v may_v be_v in_o the_o right_n in_o assign_v the_o overcloseness_n of_o the_o pore_n of_o the_o cranium_fw-la by_o what_o accident_n soever_o happen_v through_o which_o the_o refluent_a blood_n be_v transmit_v to_o the_o sinus_n for_o a_o frequent_a cause_n of_o inveterate_a obstinate_a headach_n the_o four_o c._n fig_n 4._o c._n which_o from_o its_o situation_n may_v not_o improper_o be_v call_v the_o internal_a sinus_n come_v from_o the_o under_o part_n of_o the_o falcate_v process_n at_o that_o point_n where_o it_o become_v continuous_a to_o the_o second_o process_n of_o the_o dura_n mater_n ii_o ibid._n ii_o and_o a_o large_a double_a vein_n belong_v to_o the_o plexus_fw-la choroeides_n together_o with_o the_o five_o sinus_n k._n ibid._n k._n when_o there_o be_v one_o enter_v it_o at_o a_o interstice_n make_v between_o the_o end_n of_o the_o corpus_fw-la callosum_fw-la the_o nates_n testes_fw-la and_o cerebellum_fw-la from_o whence_o have_v first_o pass_v over_o the_o cerebellum_fw-la it_o at_o last_o arrive_v with_o the_o other_o three_o at_o that_o place_n of_o union_n which_o from_o its_o author_n have_v ever_o since_o retain_v the_o name_n of_o torcular_a herophili_n g._n ibid_fw-la g._n the_o four_o other_o of_o falloppius_n and_o vidus_fw-la vidius_fw-la or_o vieussenius_fw-la by_o this_o last_o call_v superiores_fw-la and_o inferiores_fw-la the_o dd_o first_o two_o of_o which_o be_v long_o and_o narrow_a be_v call_v superiores_fw-la be_v on_o the_o basis_n of_o the_o brain_n dd_n brain_n fig_n 2._o dd_n arise_v according_a to_o he_o from_o the_o receptacula_fw-la sellae_fw-la aequinae_fw-la by_o the_o same_o author_n so_o name_v hereafter_o to_o be_v describe_v though_o more_o true_o from_o the_o ee_o circular_a sinus_n i_o ibid._n i_o as_o i_o hope_v in_o its_o place_n to_o make_v appear_v run_v down_o from_o thence_o upon_o the_o internal_a process_n of_o the_o os_fw-la petrosum_fw-la and_o terminate_n in_o the_o sinus_n laterales_fw-la where_o they_o begin_v to_o be_v declive_a and_o λ_n tortuous_a in_o their_o passage_n to_o the_o internal_a jugular_a λ._o ibid._n λ._o the_o other_o two_o called_z ee_fw-mi inferiores_fw-la ee_o ibid._n ee_o which_o be_v much_o short_a and_o wide_a than_o the_o other_o descend_v from_o the_o same_o place_n as_o the_o former_a between_o the_o os_fw-la petrosum_fw-la and_o occipitale_fw-it down_o to_o the_o aforesaid_a eight_o hole_n of_o the_o cranium_fw-la where_o the_o jugular_n come_v up_o into_o the_o brain_n and_o end_v there_o another_z i_o discover_v by_o have_v first_o inject_v the_o vein_n with_o wax_n run_v round_o the_o pituitary_a gland_n on_o its_o upper_a side_n forward_o within_o a_o duplicature_n of_o the_o dura_n mater_n backward_o between_o the_o dura_n mater_n and_o pia_fw-la mater_fw-la there_o somewhat_o loose_o stretch_v over_o the_o subjacent_a gland_n itself_o and_o lateral_o in_o a_o sort_n of_o a_o canal_n make_v up_o of_o the_o dura_n mater_n above_o and_o the_o carotid_v artery_n on_o each_o outside_n of_o the_o gland_n which_o by_o be_v tasten_v to_o the_o dura_n mater_n above_o and_z below_z at_o the_o basis_n of_o the_o skull_n too_o leave_v only_o a_o little_a interstice_n betwixt_o itself_o and_o the_o gland_n thereby_o constitute_v a_o cavity_n communicate_v with_o the_o two_o forementioned_a forward_o and_o backward_o one_o from_o whence_o the_o abovemention_v four_o small_a sinus_n do_v descend_v by_o a_o visible_a continuity_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 with_o a_o equal_a speed_n from_o the_o antagonist_n muscle_n into_o the_o room_n of_o the_o first_o which_o be_v transmit_v from_o the_o brain_n to_o the_o contract_a one_o in_o order_n to_o maintain_v the_o same_o plenitude_n or_o which_o be_v the_o same_o thing_n in_o the_o sense_n of_o the_o old_a philosopher_n to_o avoid_v a_o vacuum_n and_o if_o any_o object_n the_o wideness_n of_o the_o passage_n it_o be_v to_o come_v back_o by_o from_o the_o reflexed_a muscle_n as_o a_o impediment_n to_o a_o equivalent_a speed_n in_o that_o liquor_n retrocession_n i_o have_v to_o answer_v that_o the_o emptiness_n be_v make_v first_o be_v a_o sufficient_a recompense_n for_o that_o and_o here_o i_o can_v but_o take_v notice_n that_o all_o they_o who_o contend_v for_o animal_n spirit_n analogous_a to_o those_o we_o see_v produce_v from_o various_a subject_n by_o fire_n as_o the_o only_a adequate_a medium_n for_o all_o sort_n of_o muscular_a motion_n have_v be_v force_v to_o have_v recourse_n 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 the_o bend_a muscle_n of_o the_o arm_v become_v as_o tumid_a as_o when_o voluntary_o or_o inadvertent_o contract_v at_o any_o other_o time_n which_o have_v be_v true_o observe_v though_o not_o satisfactory_o account_v for_o by_o dr._n croone_a â—â—_o croone_a p._n â—â—_o or_o any_o other_o i_o know_v of_o but_o how_o this_o or_o any_o other_o sort_n of_o contraction_n of_o a_o muscle_n happen_v do_v by_o the_o other_o aforementioned_a hypothesis_n become_v explicable_a without_o any_o manner_n of_o difficulty_n at_o all_o for_o when_o the_o cause_n of_o contraction_n be_v from_o the_o command_n of_o the_o soul_n the_o pressure_n be_v first_o from_o the_o fluid_fw-la in_o the_o brain_n by_o which_o all_o the_o interjacent_a or_o continue_a fluid_n slow_v towards_o the_o part_n to_o be_v move_v the_o same_o proportion_n of_o fluid_a be_v at_o the_o same_o instant_n transfer_v into_o its_o room_n from_o the_o relaxed_a muscle_n and_o when_o the_o contraction_n of_o the_o muscle_n be_v from_o the_o abovementioned_a external_a force_n bend_v the_o arm_n against_o my_o will_n than_o the_o liquor_n contain_v in_o the_o relax_v carnous_a fibres_n or_o vascula_fw-la be_v transmit_v through_o the_o whole_a continuity_n of_o fluids_n to_o that_o which_o be_v contract_v and_o all_o this_o without_o be_v behold_v to_o the_o wild_a conceit_n of_o a_o dry_a and_o moist_a part_n of_o the_o nervous_a juice_n blind_a passage_n invisible_a tubuli_n betwixt_o the_o antagonist_n muscle_n or_o valve_n in_o the_o nerve_n by_o a_o mere_a aequilibrium_fw-la of_o the_o fluid_v contain_v in_o the_o vessel_n the_o part_n consist_v of_o at_o the_o same_o time_n i_o be_o not_o insensible_a of_o the_o solution_n some_o have_v give_v this_o instance_n of_o involuntary_a motion_n upon_o another_o hypothesis_n viz._n by_o suppose_v a_o equality_n of_o tension_n or_o elasticity_n in_o all_o the_o muscle_n of_o the_o whole_a body_n by_o which_o mean_v it_o fall_v out_o that_o when_o any_o new_a additional_a force_n though_o never_o so_o small_a be_v add_v to_o the_o fibre_n of_o any_o muscle_n as_o in_o voluntary_a motion_n or_o the_o power_n of_o elasticity_n in_o the_o antagonist_n muscle_n overcome_v by_o outward_a force_n as_o in_o the_o aforementioned_a instance_n of_o involuntary_a motion_n the_o other_o muscle_n than_o become_v contract_v now_o that_o this_o be_v one_o concurrent_a cause_n in_o both_o sort_n of_o instance_n as_o be_v confirm_v by_o the_o experiment_n of_o cut_v a_o muscle_n through_o either_o towards_o the_o extreme_n or_o in_o the_o middle_n by_o which_o the_o fibre_n by_o their_o natural_a elasticity_n be_v find_v to_o contract_n either_o to_o one_o or_o the_o other_o or_o to_o both_o extreme_n be_v allow_v to_o be_v true_a but_o to_o be_v the_o only_a cause_n be_v altogether_o as_o false_a for_o in_o the_o first_o place_n as_o to_o the_o case_n of_o voluntary_a contraction_n it_o be_v allow_v to_o proceed_v from_o a_o transmission_n of_o spirit_n 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
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