answerable_a to_o its_o capacity_n artery_n from_o the_o left_a ventricle_n into_o the_o great_a artery_n and_o thence_o into_o the_o small_a artery_n the_o heart_n instant_o contract_v itself_o expel_v the_o same_o at_o least_o good_a part_n thereof_o into_o the_o great_a artery_n arise_v from_o the_o left_a ventricle_n thence_o into_o the_o lesser_a artery_n and_o so_o into_o the_o substance_n of_o the_o flesh_n from_o whence_o the_o blood_n be_v intrude_v into_o the_o capillary_a vein_n by_o they_o into_o the_o great_a vein_n from_o they_o into_o the_o vena_fw-la cava_fw-la and_o at_o length_n into_o the_o right_a ventricle_n of_o the_o heart_n there_o to_o begin_v the_o same_o circular_a progress_n again_o we_o say_v from_o the_o capillary_a artery_n into_o the_o substance_n of_o the_o flesh._n vein_n from_o the_o small_a artery_n through_o the_o substance_n of_o the_o flesh_n into_o the_o small_a vein_n for_o as_o to_o those_o who_o will_v have_v the_o blood_n to_o pass_v out_o 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heart_n all_o the_o blood_n contain_v betwixt_o the_o two_o ligature_n will_v in_o a_o very_a short_a space_n be_v discharge_v into_o the_o right_a ventricle_n again_o the_o heart_n seem_v to_o immit_n more_o blood_n into_o the_o great_a artery_n day_n that_o more_o blood_n pass_v through_o the_o heart_n in_o a_o hour_n than_o can_v be_v supply_v from_o the_o chyle_n in_o several_a day_n in_o the_o space_n of_o one_o hour_n than_o the_o proportion_n of_o chyle_n can_v amount_v to_o in_o several_a day_n for_o in_o most_o man_n the_o heart_n make_v more_o than_o 3000._o pulse_n in_o a_o hour_n and_o at_o every_o systole_n it_o expel_v some_o blood_n out_o of_o its_o left_a ventricle_n into_o the_o aorta_n as_o may_v be_v sensible_o demonstrate_v by_o this_o that_o upon_o a_o ligation_n of_o the_o aorta_fw-mi near_o the_o heart_n and_o a_o incision_n make_v betwixt_o the_o ligature_n and_o the_o heart_n you_o may_v observe_v some_o quantity_n of_o blood_n more_o or_o less_o to_o be_v squirt_v forth_o by_o the_o incision_n at_o every_o systole_n unless_o the_o heart_n be_v grow_v weak_a and_o languid_a and_o yet_o even_o in_o that_o case_n some_o quantity_n of_o blood_n will_v issue_v forth_o at_o the_o hole_n once_o in_o 3_o or_o 4_o pulse_n nay_o when_o the_o cone_n or_o point_n of_o the_o heart_n be_v cut_v off_o and_o the_o heart_n hold_v upright_o though_o the_o ventricle_n be_v not_o then_o full_a yet_o will_v some_o blood_n be_v squeeze_v out_o of_o they_o every_o time_n the_o heart_n contract_v itself_o sanguine_a 2_o cap._n de_fw-fr mat_n cord_n &_o sanguine_a and_o that_o to_o the_o distance_n of_o 3_o or_o 4_o foot_n as_o dr._n harvey_n observe_v as_o for_o the_o quantity_n of_o blood_n admit_v into_o the_o ventricle_n of_o the_o heart_n when_o it_o be_v dilate_v viz._n the_o necessity_n of_o the_o circulation_n infer_v from_o three_o consideration_n viz._n and_o expel_v into_o the_o great_a artery_n when_o it_o be_v again_o contract_v it_o can_v be_v precise_o determine_v for_o if_o in_o the_o same_o individual_a person_n the_o motion_n of_o the_o heart_n be_v sometime_o more_o strong_a and_o swift_a and_o sometime_o more_o weak_a and_o slow_a do_v make_v the_o circulation_n of_o the_o blood_n more_o swift_a or_o more_o slow_a proportionate_o certain_o in_o the_o species_n it_o must_v be_v impossible_a to_o commensurate_a the_o quantity_n of_o blood_n pass_v through_o the_o heart_n at_o every_o pulse_n since_o there_o be_v great_a variety_n among_o man_n in_o respect_n of_o their_o different_a temperament_n age_n sex_n diet_n exercise_n passion_n and_o the_o like_a all_o which_o vary_v the_o pulse_n and_o consequent_o the_o motion_n of_o the_o blood_n however_o that_o some_o satisfaction_n may_v be_v give_v to_o enquirer_n herein_o we_o be_v to_o consider_v three_o thing_n viz._n 1_o how_o much_o blood_n may_v be_v contain_v in_o the_o heart_n of_o a_o man_n in_o its_o diastole_n 2_o how_o much_o may_v be_v expel_v out_o of_o it_o in_o its_o systole_n 3_o and_o how_o many_o pulse_n or_o diastole_n and_o systole_n the_o heart_n do_v common_o in_o healthy_a and_o temperate_a man_n make_v in_o a_o hour_n concern_v the_o first_o diastole_n the_o quantity_n of_o blood_n contain_v in_o the_o heart_n in_o its_o diastole_n there_o be_v different_a observation_n harvey_n say_v that_o in_o a_o man_n heart_n dilate_v he_o find_v more_o than_o two_o ounce_n of_o blood_n plempius_n affirm_v that_o he_o find_v almost_o two_o ounce_n riolan_n will_v allow_v scarce_o half_a a_o ounce_n in_o the_o left_a ventricle_n but_o somewhat_o more_o in_o the_o right_n and_o hogeland_n come_v much_o low_a admit_v only_o one_o dragme_n but_o all_o man_n general_o grant_v that_o the_o whole_a mass_n of_o blood_n contain_v in_o the_o body_n do_v seldom_o exceed_v 24_o pound_n or_o pint_n and_o as_o seldom_o come_v short_a of_o 15._o concern_v systole_n the_o quantity_n expel_v out_o of_o it_o in_o its_o systole_n the_o second_o we_o say_v that_o in_o every_o systole_n be_v expel_v either_o the_o four_o or_o five_o or_o six_o or_o at_o least_o the_o eight_o part_n of_o the_o blood_n receive_v into_o the_o heart_n at_o the_o precedent_a diastole_n harvey_n suppose_v at_o least_o one_o dragme_n and_o prove_v that_o his_o supposition_n from_o the_o sudden_a effusion_n of_o all_o the_o mass_n of_o blood_n if_o but_o the_o least_o artery_n be_v cut_v and_o because_o all_o the_o blood_n may_v be_v transmit_v through_o the_o heart_n in_o the_o space_n of_o half_a a_o hour_n he_o thereupon_o conclude_v for_o certain_a that_o much_o blood_n be_v expel_v into_o the_o great_a artery_n at_o every_o systole_n conringius_n also_o make_v the_o same_o compute_v walaeus_n and_o sleyelius_fw-la admit_v half_o a_o ounce_n but_o compute_v only_o from_o one_o scruple_n hogeland_n acquiesce_v in_o one_o dragme_n and_o thom._n bartholinus_n bring_v it_o down_o to_o only_o half_a a_o scruple_n but_o they_o all_o agree_v that_o in_o the_o contraction_n of_o the_o heart_n the_o side_n of_o the_o ventricle_n be_v not_o draw_v so_o close_o together_o as_o to_o expel_v all_o the_o blood_n contain_v in_o they_o concern_v the_o three_o hour_n the_o number_n of_o pulse_n in_o the_o space_n of_o a_o hour_n we_o remember_v that_o primrose_n reckon_v 700._o pulse_n in_o a_o hour_n riolan_n 2000_o waleus_n and_o regius_n 3000._o cardan_n 4000_o plempius_n 4450_o sleyelius_fw-la 4876_o bartholinus_n 4400_o or_o thereabouts_o and_o harvey_n about_o 2000_o each_o one_o number_v the_o pulse_n in_o his_o own_o wrist_n now_o from_o these_o three_o thing_n premise_v we_o may_v collect_v how_o much_o blood_n may_v be_v expel_v out_o of_o the_o left_a ventricle_n of_o the_o heart_n into_o the_o aorta_n in_o the_o space_n of_o one_o hour_n according_a to_o the_o several_a numeration_n of_o pulse_n viz._n from_o ℈_o j_o 3000_o time_n repeat_v there_o arise_v lb_fw-mi 10_o â„¥_o 5_o of_o
in_o a_o moment_n and_o the_o blood_n may_v be_v observe_v to_o flow_v in_o its_o course_n very_o swift_o so_o soon_o as_o the_o ligature_n be_v remove_v but_o how_o swift_o be_v not_o easy_o determine_v there_o be_v so_o great_a variety_n of_o cause_n natural_a non-naturall_a and_o preternatural_a that_o accelerate_v or_o retard_v the_o flux_n of_o the_o blood_n only_o thus_o may_v be_v infer_v from_o the_o precedent_n compute_v of_o the_o number_n of_o pulse_n and_o the_o quantity_n of_o blood_n expel_v out_o of_o the_o left_a ventricle_n of_o the_o heart_n in_o every_o systole_n that_o the_o whole_a mass_n of_o blood_n do_v pass_v through_o the_o heart_n once_o in_o a_o hour_n or_o two_o at_o most_o yet_o be_v not_o the_o current_n of_o blood_n near_o so_o swift_a in_o its_o channel_n while_o they_o be_v whole_a as_o when_o one_o of_o they_o vein_n or_o artery_n be_v cut_v because_o in_o that_o case_n the_o blood_n stream_n forth_o into_o the_o free_a and_o easily-yielding_a aer_fw-la without_o any_o resistance_n but_o be_v confine_v in_o its_o vessel_n it_o be_v force_v to_o distend_a they_o and_o drive-on_a the_o forego_n current_n 4_o as_o swift_a in_o the_o vein_n as_o in_o the_o artery_n for_o vein_n of_o equal_a velocity_n in_o the_o artery_n and_o vein_n though_o the_o impulse_n be_v more_o vehement_a in_o the_o attery_n as_o be_v continue_v to_o the_o heart_n than_o in_o the_o vein_n and_o therefore_o it_o may_v seem_v reasonable_a at_o first_o consideration_n that_o the_o motion_n shall_v be_v proportionate_o more_o swift_a in_o the_o artery_n yet_o consider_v that_o the_o artery_n be_v still_o small_a and_o small_a towards_o their_o extremity_n &_o that_o the_o flux_n of_o the_o blood_n must_v needs_o be_v more_o and_o more_o retard_v as_o it_o approach_v those_o extremity_n and_o on_o the_o contrary_a that_o the_o vein_n grow_v wide_a and_o wide_o from_o their_o extremity_n to_o the_o centre_n of_o the_o body_n and_o so_o the_o blood_n have_v still_o large_a and_o large_a space_n to_o run_v through_o in_o its_o return_n to_o the_o heart_n we_o may_v safe_o conclude_v conjectural_o that_o the_o velocity_n of_o the_o motion_n be_v as_o great_a in_o the_o vein_n as_o in_o the_o artery_n this_o be_v also_o confirm_v by_o sense_n for_o the_o vena_fw-la cava_fw-la in_o all_o that_o tract_n from_o the_o liver_n to_o the_o subclavian_a division_n may_v be_v observe_v to_o beat_v as_o often_o as_o the_o great_a artery_n and_o so_o must_v import_v blood_n into_o the_o right_a ventricle_n as_o fast_o as_o the_o aorta_n do_v export_v it_o from_o the_o left_a which_o doubtless_o be_v the_o reason_n why_o the_o vena_fw-la cava_fw-la have_v fleshy_a fibre_n upon_o it_o when_o it_o approach_v the_o heart_n nevertheless_o we_o conceive_v the_o motion_n to_o be_v swift_a in_o the_o artery_n when_o the_o heart_n contract_v itself_o do_v impel_v the_o blood_n into_o and_o through_o they_o than_o when_o dilate_v itself_o again_o it_o do_v intermit_v that_o its_o impulse_n which_o be_v true_a likewise_o of_o the_o blood_n in_o the_o vein_n as_o may_v be_v sometime_o observe_v in_o phlebotomy_n when_o the_o ligature_n be_v not_o so_o straight_o as_o to_o cause_v much_o distension_n of_o the_o vein_n in_o which_o the_o incision_n be_v make_v for_o in_o that_o case_n the_o blood_n will_v flow_v forth_o more_o swift_o every_o time_n the_o heart_n be_v contract_v and_o these_o be_v the_o condition_n of_o this_o admirable_a motion_n of_o the_o blood_n last_o concern_v the_o cause_n of_o this_o motion_n it_o be_v necessary_a that_o the_o blood_n be_v move_v either_o by_o itself_o or_o by_o some_o other_o principle_n and_o if_o it_o be_v the_o author_n of_o its_o own_o motion_n then_o that_o must_v be_v in_o respect_n of_o either_o a_o inherent_a motive-faculty_n or_o of_o its_o ebullition_n or_o of_o its_o rarefaction_n or_o of_o its_o quantity_n whereby_o the_o ventricles_n of_o the_o heart_n be_v distend_v and_o so_o irritate_v as_o to_o discharge_v the_o same_o by_o contract_v themselves_o if_o the_o motion_n be_v derive_v from_o a_o external_n principle_n than_o it_o must_v be_v refer_v either_o to_o attraction_n or_o to_o vection_n or_o to_o pulsion_n let_v we_o therefore_o see_v which_o of_o all_o these_o may_v be_v the_o most_o likely_a cause_n of_o the_o motion_n of_o the_o blood_n first_o that_o the_o blood_n be_v not_o the_o cause_n of_o its_o own_o motion_n it_o the_o blood_n not_o the_o cause_n of_o its_o own_o motion_n in_o respect_n of_o any_o motive_n faculty_n inherent_a in_o it_o ratione_fw-la insitae_fw-la sibi_fw-la facultatis_fw-la by_o reason_n of_o any_o inherent_a faculty_n may_v be_v infer_v from_o hence_o that_o in_o blood_n effuse_v out_o of_o its_o vessel_n into_o the_o body_n or_o any_o other_o receiver_n no_o motion_n at_o all_o can_v be_v observe_v and_o it_o be_v hard_o to_o conceive_v that_o it_o shall_v be_v so_o corrupt_v in_o a_o moment_n as_o whole_o to_o lose_v a_o faculty_n essential_a to_o it_o dr._n harvey_n we_o confess_v affirm_v that_o he_o observe_v a_o certain_a obscure_a motion_n of_o the_o blood_n in_o the_o right_a ear_n of_o the_o heart_n where_o he_o suppose_v the_o motion_n of_o the_o heart_n first_o to_o begin_v and_o last_o to_o end_v after_o the_o ear_n have_v cease_v to_o move_v but_o we_o refer_v that_o to_o the_o mication_n of_o the_o blood_n from_o the_o vital_a spirit_n not_o yet_o whole_o extinguish_v second_o that_o it_o be_v not_o the_o author_n of_o its_o own_o motion_n ebullition_n nor_o in_o respect_n of_o its_o ebullition_n ratione_fw-la ebullitionis_fw-la which_o arist._n call_v 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d be_v manifest_a from_o these_o subsequent_a reason_n 1_o no_o ebullition_n can_v be_v constant_o equal_a or_o of_o the_o same_o tenor_n but_o the_o pulse_n of_o the_o heart_n and_o so_o the_o motion_n of_o the_o blood_n be_v in_o temperate_a and_o healthy_a man_n for_o the_o most_o part_n equal_v 2_o as_o the_o ebullition_n be_v great_a so_o will_v the_o pulse_n but_o in_o burn_a fever_n the_o ebullition_n be_v extreme_a great_a by_o reason_n of_o the_o great_a intention_n of_o the_o heat_n and_o yet_o the_o pulse_n be_v frequent_o small_a and_o weak_a as_o also_o in_o the_o begin_n of_o putrid_a fever_n as_o galen_n long_o since_o remark_v 3_o the_o blood_n suffer_v no_o ebullition_n as_o it_o pass_v through_o the_o heart_n for_o if_o in_o the_o dissection_n of_o a_o live_a animal_n you_o make_v a_o incision_n either_o into_o the_o left_a ventricle_n of_o the_o heart_n or_o into_o the_o great_a artery_n near_o it_o you_o shall_v perceive_v the_o blood_n flow_v out_o at_o the_o hole_n to_o be_v pure_a and_o such_o as_o before_o it_o come_v into_o the_o heart_n not_o frothy_a boil_a or_o rarefy_v and_o to_o continue_v such_o as_o at_o its_o first_o efflux_n yea_o more_o if_o you_o receive_v the_o blood_n issue_v from_o a_o incision_n of_o the_o vena_fw-la cava_fw-la in_o one_o saucer_n and_o that_o issue_v from_o the_o left_a ventricle_n in_o another_o you_o shall_v not_o be_v able_a to_o discern_v any_o difference_n betwixt_o the_o one_o and_o the_o other_o either_o soon_o or_o a_o good_a while_n after_o a_o invincible_a argument_n against_o the_o ebullition_n of_o the_o blood_n first_o imagine_v by_o aristotle_n and_o since_o defend_v by_o many_o great_a man_n his_o sectator_n 4_o the_o plunge_v a_o arm_n or_o leg_n into_o cold_a water_n will_v suppress_v the_o ebullition_n and_o consequent_o the_o motion_n of_o the_o blood_n for_o if_o you_o apply_v a_o close_a ligature_n to_o a_o man_n arm_n and_o then_o immerge_n the_o same_o into_o cold_a water_n or_o snow_n upon_o solution_n of_o the_o ligature_n he_o shall_v find_v the_o blood_n return_v to_o his_o heart_n with_o so_o great_a a_o sense_n of_o cold_a as_o very_o much_o to_o offend_v he_o which_o cold_a arise_v to_o the_o blood_n from_o its_o be_v long_o detain_v in_o the_o extremity_n of_o the_o arm_n bind_v dr._n harvey_n will_v have_v to_o be_v the_o cause_n of_o swoon_v immediate_o after_o blood-letting_n in_o many_o man_n the_o heart_n receive_v injury_n from_o that_o acquire_v cold_a three_o not_o ratione_fw-la rarefactionis_fw-la because_o 1_o in_o live_v dissection_n rarefaction_n nor_o of_o its_o rarefaction_n where_o the_o heart_n yet_o continue_v its_o motion_n no_o man_n ever_o have_v or_o can_v observe_v any_o such_o thing_n as_o rarefy_a blood_n to_o flow_v from_o either_o the_o left_a ventricle_n or_o the_o great_a artery_n if_o cut_v but_o pure_a and_o such_o as_o be_v from_o the_o ear_n let_v down_o into_o the_o ventrice_n 2_o the_o heart_n itself_o when_o cut_v in_o piece_n or_o wound_v may_v be_v observe_v to_o beat_v yet_o not_o from_o any_o rarefaction_n of_o the_o blood_n for_o than_o it_o have_v no_o blood_n in_o
have_v undergo_v several_a circulation_n and_o as_o many_o fresh_a accension_n in_o the_o heart_n for_o in_o every_o circulation_n they_o grow_v more_o and_o more_o subtle_a and_o agile_a and_o so_o must_v at_o length_n be_v bring_v to_o the_o requisite_a height_n of_o volatility_n to_o which_o have_v once_o attain_v in_o the_o very_a next_o circulation_n though_o they_o be_v restrain_v and_o keep_v in_o by_o the_o side_n of_o the_o heart_n and_o coat_n of_o the_o artery_n while_o they_o remain_v therein_o be_v diffuse_v upon_o the_o outward_a part_n of_o the_o body_n as_o they_o warm_a and_o vivify_v those_o part_n so_o do_v they_o soon_o fly_v away_o and_o disperse_v themselves_o into_o air_n and_o while_o these_o thus_o fly_v away_o other_o spirit_n less_o volatile_a be_v by_o the_o cold_a temperament_n of_o the_o part_n by_o which_o they_o pass_v somewhat_o repress_v so_o that_o the_o force_n of_o their_o expansive_a motion_n be_v much_o abate_v the_o mication_n or_o pant_v of_o the_o blood_n interrupt_v and_o the_o blood_n wherein_o they_o be_v of_o arterial_a or_o vital_a blood_n be_v make_v venouse_a or_o natural_a and_o such_o it_o continue_v until_o the_o next_o circulation_n bring_v it_o again_o to_o the_o heart_n there_o to_o be_v kindle_v afresh_o and_o exalt_v to_o the_o due_a heat_n of_o vitality_n which_o once_o acquire_v it_o recover_v its_o intermit_a motion_n of_o mication_n or_o rise_v and_o fall_v alternate_o and_o yield_v a_o fresh_a supply_n of_o spirit_n vital_a which_o be_v transmit_v to_o the_o habit_n of_o the_o body_n be_v soon_o disperse_v like_o the_o former_a and_o thus_o be_v the_o vital_a flame_n keep_v alive_a at_o no_o less_o expense_n artery_n the_o reason_n of_o the_o mication_n or_o pant_a motion_n of_o the_o blood_n in_o the_o artery_n than_o a_o continual_a dissipation_n of_o the_o most_o votatile_a spirit_n of_o the_o blood_n for_o that_o vital_a heat_n arise_v from_o within_o and_o the_o most_o subtle_a spirit_n be_v the_o first_o mover_n to_o the_o excitement_n thereof_o the_o motion_n by_o which_o they_o do_v it_o be_v their_o endeavour_n to_o expand_v themselves_o and_o to_o dilate_v their_o bound_n while_o the_o other_o grosser_n element_n or_o ingredient_n of_o the_o blood_n oppose_v they_o therein_o and_o this_o strife_n or_o counter-activity_n of_o the_o spirit_n on_o one_o part_n and_o of_o the_o grosser_n ingredient_n of_o the_o blood_n on_o the_o other_o do_v exhibit_v the_o general_a essence_n of_o heat_n to_o which_o may_v be_v add_v this_o short_a observation_n that_o in_o this_o contention_n one_o while_o the_o spirit_n prevail_v do_v lift_v up_o or_o swell_v the_o mass_n of_o blood_n another_o while_o the_o grosser_n element_n the_o contraction_n of_o the_o heart_n and_o artery_n assist_v they_o prevail_v countermand_n and_o interrupt_v that_o expansive_a motion_n and_o that_o by_o this_o alternate_a conquest_n of_o these_o antagonist_n be_v make_v the_o mication_n or_o rising_n and_o fall_v of_o the_o blood_n the_o one_o in_o the_o dilatation_n the_o other_o in_o the_o contraction_n of_o the_o heart_n and_o artery_n forasmuch_o therefore_o as_o the_o vital_a heat_n do_v consist_v in_o the_o rarefactive_a motion_n of_o the_o spirit_n and_o the_o renitence_n of_o the_o grosser_n part_n of_o the_o blood_n and_o that_o the_o spirit_n for_o the_o most_o part_n at_o least_o alternate_o obtain_v the_o victory_n and_o dominion_n over_o their_o opponent_n it_o seem_v most_o consentaneous_a to_o truth_n that_o this_o vital_a heat_n can_v be_v preserve_v without_o a_o perpetual_a expense_n of_o the_o most_o pure_a i.e._n the_o most_o volatile_a spirit_n of_o the_o blood_n and_o consequent_o necessary_a that_o during_o life_n fresh_a spirit_n must_v be_v perpetual_o mint_v out_o of_o the_o blood_n to_o defray_v that_o vast_a and_o continual_a expense_n and_o this_o we_o conceive_v to_o be_v the_o true_a progress_n of_o nature_n from_o the_o first_o reception_n of_o the_o spirit_n contain_v in_o the_o aliment_n to_o their_o education_n into_o the_o chyle_n their_o sublimation_n in_o the_o heart_n their_o gradual_a exaltation_n to_o the_o high_a degree_n of_o volatility_n and_o last_o their_o dissipation_n through_o the_o skin_n into_o aer_fw-la upon_o which_o depend_v the_o conservation_n of_o the_o vital_a heat_n and_o the_o continual_a generation_n of_o the_o vital_a spirit_n of_o the_o motion_n of_o the_o blood_n its_o condition_n and_o cause_n exercitation_n the_o six_o of_o the_o motion_n of_o the_o blood_n its_o condition_n and_o cause_n nature_n which_o in_o all_o her_o work_n have_v the_o end_n chapter_n the_o method_n of_o the_o chapter_n and_o mean_v conduce_v to_o that_o end_n always_o close_o connect_v in_o one_o idea_n have_v ordain_v the_o perpetual_a generation_n of_o this_o vital_a nectar_n the_o blood_n in_o animal_n for_o the_o use_v in_o the_o precedent_a chapter_n recite_v that_o she_o may_v not_o be_v deficient_a in_o the_o mean_v requisite_a to_o fulfil_v those_o uses_n have_v also_o ordain_v that_o the_o blood_n shall_v be_v carry_v from_o the_o fountain_n to_o all_o the_o part_n in_o live_a stream_n by_o a_o certain_a admirable_a motion_n necessary_a to_o its_o distribution_n through_o the_o whole_a body_n now_o that_o we_o may_v full_o understand_v the_o nature_n of_o this_o motion_n we_o be_v to_o consider_v 1_o the_o manner_n 2_o the_o condition_n 3_o the_o cause_n of_o it_o concern_v the_o first_o we_o observe_v circular_a that_o the_o motion_n of_o the_o blood_n be_v circular_a that_o the_o blood_n be_v continual_o carry_v or_o rather_o drive_v from_o its_o fountain_n the_o heart_n in_o the_o centre_n of_o the_o body_n by_o the_o artery_n to_o the_o circumference_n and_o back_o again_o from_o the_o circumference_n to_o the_o centre_n by_o the_o vein_n irrigate_a cherish_a and_o vivify_a all_o the_o part_n as_o it_o pass_v along_o and_o that_o therefore_o this_o motion_n be_v by_o the_o glorious_a inventor_n of_o it_o dr._n harvey_n call_v the_o circulation_n of_o the_o blood_n quòd_fw-la ejus_fw-la enim_fw-la semper_fw-la redeat_fw-la labour_n actus_fw-la in_o orbem_fw-la for_o in_o the_o first_o place_n heart_n from_o the_o vena_fw-la cava_fw-la into_o the_o right_a ventricle_n of_o the_o heart_n the_o blood_n be_v effuse_v out_o of_o the_o vena_fw-la cava_fw-la into_o the_o right_a ventricle_n of_o the_o heart_n as_o may_v be_v evident_o see_v in_o live_a animal_n dissect_v especial_o in_o coney_n for_o if_o the_o trunk_n of_o the_o vena_fw-la cava_fw-la be_v bind_v with_o a_o ligature_n both_o above_o and_o below_o the_o heart_n you_o may_v perceive_v all_o the_o blood_n contain_v in_o the_o space_n betwixt_o the_o ligature_n to_o be_v speedy_o discharge_v into_o the_o right_a ventricle_n of_o the_o heart_n to_o which_o the_o vena_fw-la cava_fw-la be_v conjoin_v from_o the_o right_a ventricle_n of_o the_o heart_n it_o be_v the_o heart_n contract_v itself_o expel_v into_o the_o vena_fw-la arteriosa_fw-la lung_n from_o the_o right_a ventricle_n by_o the_o vena_fw-la arteriosa_fw-la into_o the_o lung_n and_o so_o into_o the_o lung_n but_o not_o through_o the_o septum_fw-la transversum_fw-la or_o middle_a partition_n of_o the_o heart_n as_o some_o have_v imagine_v conceive_v the_o same_o to_o have_v some_o certain_a obscure_a passage_n from_o the_o right_n into_o the_o left_a ventricle_n only_o because_o they_o can_v without_o much_o violence_n thrust_v a_o style_n or_o probe_n through_o it_o when_o indeed_o those_o passage_n be_v not_o make_v by_o nature_n but_o by_o the_o point_n of_o the_o probe_n the_o flesh_n of_o the_o heart_n be_v so_o tender_a as_o that_o it_o be_v easy_o penetrate_v by_o any_o hard_a and_o point_a instrument_n though_o but_o gentle_o intrude_v pass_v through_o the_o vena_fw-la arteriosa_fw-la into_o the_o very_a substance_n of_o the_o lung_n the_o blood_n be_v immediate_o return_v into_o the_o venosa_fw-la arteria_fw-la ventricle_n from_o the_o lung_n through_o the_o arteria_fw-la venosa_fw-la into_o the_o left_a ventricle_n and_o through_o that_o into_o the_o left_a ventricle_n of_o the_o heart_n this_o be_v demonstrable_a thus_o have_v make_v a_o ligature_n upon_o the_o great_a branch_n of_o the_o arteria_fw-la venosa_fw-la near_o the_o pericardium_n in_o the_o lung_n of_o a_o animal_n yet_o live_v you_o may_v observe_v that_o branch_n to_o be_v soon_o fill_v and_o much_o distend_v with_o blood_n in_o that_o part_n which_o be_v towards_o the_o lung_n and_o that_o empty_v and_o flaccid_a that_o be_v next_o the_o heart_n and_o upon_o remove_v of_o the_o ligature_n the_o blood_n will_v flow_v amain_o from_o the_o lung_n to_o the_o left_a ventricle_n now_o there_o be_v no_o other_o way_n by_o which_o this_o blood_n can_v flow_v to_o the_o left_a ventricle_n but_o from_o the_o lung_n it_o must_v of_o necessity_n descend_v thence_o by_o the_o arteria_fw-la venosa_fw-la the_o left_a ventricle_n have_v thus_o take_v in_o a_o quantity_n of_o blood_n
blood_n pass_v through_o the_o heart_n into_o the_o artery_n in_o one_o hour_n ℈_o j_o 4000_o lb_n 13_o ℥_o 10_o ʒ5_n ℈_o j_o ℈_o j_o 4450_o lb_n 15_o ʒ3_n ℈_o j_o ℈_o ss_z 4400_o lb_n 7_o ℥_o 7_o ʒ5_n ℈_o j_o ℈_o j_o 2000_o lb_n 20_o ℥_o 10_o ℈_o ij_o 2000_o lb_n 41_o ℥_o 8_o ℥_o ss_z 2000_o lb_n 83_o ℥_o 4_o ℥_o j_o 2000_o lb_n 166_o ℥_o 8_o again_n set_v it_o down_o for_o a_o ground_n that_o the_o quantity_n of_o blood_n contain_v in_o the_o whole_a body_n do_v amount_v only_o to_o lb_v 15._o for_o that_o be_v according_a to_o the_o most_o modest_a account_n and_o allow_v some_o part_n thereof_o to_o be_v consume_v by_o the_o lamp_n of_o life_n and_o as_o much_o to_o be_v supply_v out_o of_o the_o chyle_n we_o may_v infer_v these_o 4_o necessary_a conclusion_n 1_o that_o more_o blood_n be_v transmit_v through_o the_o heart_n once_o in_o every_o hour_n than_o can_v be_v supply_v out_o of_o the_o chyle_n in_o many_o hour_n 2_o that_o all_o the_o blood_n in_o the_o body_n be_v transmit_v through_o the_o heart_n once_o in_o a_o quarter_n or_o half_a or_o a_o whole_a hour_n or_o in_o two_o hour_n at_o most_o 3_o that_o so_o much_o be_v not_o require_v to_o the_o conservation_n of_o the_o vital_a flame_n and_o the_o confection_n of_o vital_a spirit_n 4_o that_o since_o the_o vessel_n be_v not_o break_v that_o the_o blood_n can_v return_v back_o out_o of_o the_o heart_n nor_o be_v any_o way_n dissipate_v it_o be_v absolute_o necessary_a that_o the_o blood_n must_v return_v to_o the_o heart_n again_o by_o the_o vein_n or_o be_v circulate_v perpetual_o as_o the_o immortal_a dr._n harvey_n have_v demonstrate_v nor_o be_v this_o circulation_n of_o the_o blood_n only_o particular_a to_o some_o artery_n and_o vein_n as_o some_o have_v inconsiderate_o imagine_v but_o universal_a or_o common_a to_o they_o all_o body_n that_o the_o circulation_n be_v universal_a in_o all_o the_o artery_n and_o vein_n of_o the_o whole_a body_n throughout_o the_o whole_a body_n for_o though_o it_o be_v indeed_o more_o demonstrable_a to_o the_o sense_n in_o the_o limb_n where_o the_o vessel_n be_v ample_a and_o conspicuous_a admit_v of_o ligature_n more_o convenient_o than_o those_o in_o the_o inward_o yet_o do_v observation_n teach_v we_o that_o the_o motion_n of_o the_o blood_n be_v the_o very_a same_o in_o the_o very_a entrails_n also_o in_o particular_a that_o we_o may_v deduce_v it_o through_o the_o most_o conspicuous_a artery_n and_o vein_n of_o other_o interior_a part_n beside_o those_o already_o mention_v the_o blood_n be_v carry_v in_o the_o abdomen_fw-la to_o the_o testicle_n by_o the_o spermatick_a artery_n from_o they_o by_o the_o spermatick_a vein_n into_o the_o left_a emulgent_a and_o vena_fw-la cava_fw-la intestine_n by_o the_o mesenterick_n artery_n from_o they_o by_o the_o mesenterick_n vein_n into_o the_o ramus_fw-la mesentericus_fw-la and_o thence_o into_o the_o vena_fw-la porte_fw-fr spleen_n by_o the_o left_a celiacal_a artery_n from_o it_o by_o the_o ramus_fw-la splenicus_fw-la into_o the_o vena_fw-la porte_fw-fr and_o thence_o direct_o into_o the_o liver_n stomach_n and_o omentum_fw-la by_o other_o branch_n of_o the_o celiacal_a artery_n from_o they_o by_o the_o gastrick_n and_o epiploical_a vein_n into_o the_o ramus_fw-la splenicus_fw-la thence_o into_o the_o vena_fw-la porte_fw-fr and_o so_o to_o the_o liver_n kidney_n by_o the_o emulgent_a artery_n from_o they_o by_o the_o emulgent_a vein_n into_o the_o vena_fw-la cava_fw-la outside_o of_o the_o heart_n by_o the_o coronary_a artery_n back_o again_o by_o the_o coronary_a vein_n into_o the_o vena_fw-la cava_fw-la thorax_n to_o the_o pleura_fw-la by_o the_o intercostal_a artery_n from_o it_o by_o the_o vein_n thereof_o into_o the_o vena_fw-la azygos_n and_o thence_o into_o the_o vena_fw-la cava_fw-la head_n to_o the_o membrane_n of_o the_o brain_n by_o the_o carotide_n and_o neck-artery_n which_o tend_v to_o the_o four_o cell_n of_o the_o brain_n but_o be_v not_o therein_o terminate_v as_o some_o anatomist_n have_v think_v from_o they_o by_o the_o jugular_a vein_n into_o the_o ascendent_a trunk_n of_o the_o vena_fw-la cava_fw-la all_o which_o be_v discoverable_a to_o the_o sense_n by_o bind_v those_o vessel_n in_o animal_n cut_v up_o alive_a for_o the_o swell_a cause_v in_o either_o vein_n or_o artery_n by_o the_o flux_n of_o blood_n there_o arrest_v will_v always_o appear_v on_o that_o side_n the_o ligature_n from_o whence_o the_o blood_n flow_v here_o we_o be_v to_o advertise_v that_o in_o the_o foetus_fw-la or_o infant-unborn_a the_o manner_n of_o the_o circulation_n of_o the_o blood_n unborn_a but_o after_o a_o peculiar_a manner_n in_o a_o infant_n unborn_a through_o the_o vessel_n of_o the_o heart_n be_v different_a from_o that_o we_o have_v describe_v for_o the_o blood_n be_v not_o carry_v from_o the_o mother_n womb_n into_o the_o umbilical_a artery_n but_o from_o the_o placenta_fw-la uterina_fw-la in_o which_o those_o artery_n be_v terminate_v into_o the_o umbilical_a vein_n which_o conduct_v it_o along_o to_o the_o liver_n of_o the_o foetus_fw-la from_o whence_o it_o be_v transmit_v by_o the_o vena_fw-la cava_fw-la into_o the_o right_a ventricle_n of_o the_o heart_n be_v bring_v thither_o it_o be_v transfer_v into_o the_o vena_fw-la arteriosa_fw-la but_o because_o the_o lung_n be_v not_o yet_o move_v as_o after_o the_o birth_n in_o respiration_n and_o so_o their_o vessel_n be_v not_o dilate_v and_o contract_v alternate_o and_o consequent_o they_o can_v neither_o receive_v the_o blood_n out_o of_o the_o vena_fw-la arteriosa_fw-la not_o impel_v it_o into_o the_o arteria_fw-la venosa_fw-la therefore_o have_v the_o providence_n of_o nature_n contrive_v and_o frame_v two_o peculiar_a passage_n the_o one_o a_o conduit_n or_o pipe_n convey_v the_o blood_n from_o the_o vena_fw-la arteriosa_fw-la into_o the_o great_a artery_n the_o other_o certain_a foramen_fw-la hole_n or_o inlett_n by_o which_o the_o blood_n pass_v from_o the_o vena_fw-la cava_fw-la into_o the_o arteria_fw-la venosa_fw-la thence_o into_o the_o left_a ear_n of_o the_o heart_n and_o so_o down_o into_o the_o left_a ventricle_n from_o thence_o as_o well_o as_o that_o from_o the_o vena_fw-la arteriosa_fw-la it_o be_v infuse_v into_o the_o great_a artery_n so_o that_o in_o a_o unborn_a infant_n nature_n use_v the_o two_o ventricles_n of_o the_o heart_n as_o if_o they_o be_v but_o one_o and_o this_o lest_o the_o infant_n shall_v have_v his_o blood_n too_o hot_a and_o adust_a while_o he_o want_v the_o ventilation_n of_o the_o air_n and_o expulsion_n of_o fuliginous_a exhalation_n through_o the_o lung_n from_o the_o great_a artery_n the_o blood_n be_v send_v into_o the_o umbilical_a artery_n which_o return_v it_o to_o the_o placenta_fw-la uterina_fw-la where_o permeate_v the_o substance_n thereof_o it_o be_v again_o infuse_v into_o the_o small_a branch_n or_o rather_o root_v of_o the_o umbilical_a vein_n by_o they_o into_o the_o trunk_n and_o at_o length_n into_o the_o liver_n vena_fw-la cava_fw-la and_o heart_n as_o before_o have_v thus_o explain_v by_o what_o way_n the_o blood_n be_v move_v in_o a_o round_a be_v this_o motion_n of_o the_o blood_n be_v it_o follow_v that_o we_o consider_v the_o condition_n of_o that_o its_o motion_n concern_v which_o we_o observe_v that_o the_o circulation_n of_o the_o blood_n be_v 1_o continual_a continual_a continual_a for_o since_o the_o heart_n be_v continual_o in_o motion_n and_o take_v in_o blood_n in_o its_o diastole_n and_o discharge_v the_o same_o again_o in_o its_o systole_n never_o intermit_a that_o its_o proper_a action_n but_o in_o great_a swoon_a fit_n or_o in_o the_o very_a article_n of_o death_n it_o be_v necessary_a that_o the_o motion_n of_o the_o blood_n be_v likewise_o continual_a 2_o vehement_a as_o may_v be_v infer_v from_o the_o hardness_n and_o distension_n of_o a_o artery_n vehement_a vehement_a or_o vein_n bind_v with_o a_o ligature_n for_o nothing_o can_v be_v distend_v to_o great_a hardness_n by_o a_o thin_a and_o liquid_a matter_n especial_o upward_a unless_o that_o matter_n be_v with_o vehemence_n impel_v into_o and_o retain_v in_o it_o but_o this_o vehemence_n of_o the_o motion_n be_v great_a near_o the_o heart_n and_o be_v afterward_o diminish_v by_o degree_n according_a to_o the_o several_a degree_n of_o distance_n from_o the_o heart_n so_o that_o the_o extreme_a artery_n have_v but_o little_a pulse_n unless_o it_o happen_v that_o the_o impellent_fw-fr force_n of_o the_o heart_n be_v increase_v as_o in_o fever_n inflammation_n violent_a exercise_n some_o passion_n etc._n etc._n which_o be_v also_o the_o reason_n why_o the_o vein_n have_v no_o pulse_n the_o impulse_n of_o the_o blood_n be_v less_o in_o they_o than_o in_o the_o small_a artery_n 3_o swift_a swift_a swift_a for_o a_o artery_n or_o vein_n be_v compress_v by_o ligature_n will_v swell_v up_o and_o be_v distend_v as_o it_o be_v
esse_fw-la opinor_fw-la and_o that_o even_a harvey_n himself_o profess_v that_o he_o find_v it_o rem_fw-la arduam_fw-la &_o difficultatibus_fw-la plenam_fw-la we_o remember_v the_o modest_a say_n of_o two_o great_a man_n upon_o the_o like_a difficulty_n the_o one_o of_o galen_n quo_fw-la pacto_fw-la haec_fw-la fiaut_fw-fr si_fw-la scrutaberis_fw-la 29._o lib._n 15._o de_fw-la usu_fw-la part_n cap._n 1._o exercit_fw-la 307._o num_fw-la 29._o convineeris_fw-la te_fw-la non_fw-la intelligere_fw-la neque_fw-la tuam_fw-la imbecissitatem_fw-la neque_fw-la opificis_fw-la tui_fw-la potentiam_fw-la the_o other_o of_o scaliger_n quandam_fw-la humanae_fw-la sapientiae_fw-la partem_fw-la esse_fw-la quaedam_fw-la aequo_fw-la animo_fw-la nescire_fw-la velle_fw-la &_o veram_fw-la sapientiam_fw-la nolle_fw-la nimiùm_fw-la sapere_fw-la and_o we_o think_v we_o need_v say_v no_o more_o in_o excuse_n of_o this_o our_o profess_a ignorance_n beside_o this_o twofold_n proxime_fw-la cause_n there_o be_v also_o another_o remote_a one_o blood_n the_o fabric_n of_o the_o heart_n a_o remote_a cause_n of_o the_o motion_n of_o the_o blood_n viz._n the_o peculiar_a conformation_n or_o fabric_n of_o the_o heart_n and_o its_o vessel_n and_o among_o all_o the_o part_n in_o this_o curious_o frame_v machine_n of_o the_o heart_n those_o which_o be_v most_o official_a or_o instrumental_a to_o the_o motion_n be_v the_o fiber_n and_o fleshy_a column_n which_o serve_v not_o so_o much_o to_o the_o strength_n of_o the_o heart_n as_o to_o the_o motion_n of_o it_o for_o in_o the_o systole_n all_o the_o fiber_n both_o small_a and_o great_a as_o well_o those_o in_o the_o inside_n of_o the_o ventricle_n as_o those_o in_o the_o septum_fw-la or_o partition-wall_n betwixt_o they_o like_o a_o artificial_a network_n make_v in_o the_o form_n of_o a_o purse_n be_v contract_v or_o draw_v together_o the_o blood_n contain_v in_o the_o ventricle_n must_v necessary_o be_v expel_v or_o press_v out_o of_o they_o the_o motion_n of_o the_o heart_n which_o be_v call_v the_o pulse_n they_o the_o motion_n of_o the_o heart_n describe_v as_o consist_v of_o twoâ—_n contrary_a motion_n and_o a_o respite_n betwixt_o they_o as_o be_v continual_a and_o make_v partly_o by_o the_o influx_n of_o the_o blood_n partly_o by_o the_o pulsifick_a faculty_n reside_v in_o the_o heart_n itself_o do_v consist_v of_o 3_o thing_n the_o systole_n the_o diastole_n and_o the_o perisystole_n all_o which_o be_v to_o be_v explain_v by_o their_o proper_a cause_n according_a as_o ocular_a inspection_n and_o reason_n do_v dictate_v they_o to_o the_o understanding_n 1_o the_o systole_n be_v the_o proper_a and_o natural_a motion_n of_o the_o heart_n be_v the_o contraction_n or_o draw_v together_o of_o the_o heart_n to_o a_o narrow_a compass_n that_o so_o the_o blood_n contain_v in_o the_o right_a ventricle_n may_v be_v expel_v through_o the_o vena_fw-la arteriosa_fw-la into_o the_o lung_n and_o that_o contain_v in_o the_o left_a may_v be_v expel_v into_o the_o great_a artery_n and_o so_o into_o all_o part_n of_o the_o body_n 2_o the_o diastole_n be_v a_o motion_n only_o accidentary_a to_o the_o heart_n be_v a_o dilatation_n or_o open_v of_o the_o heart_n that_o the_o blood_n may_v flow_v into_o the_o right_a ventricle_n out_o of_o the_o vena_fw-la cava_fw-la and_o into_o the_o left_a out_o of_o the_o arteria_fw-la venosa_fw-la 3_o the_o perisystole_n be_v a_o certain_a quiet_a or_o short_a respite_n betwixt_o the_o contraction_n and_o dilatation_n of_o the_o heart_n during_o the_o small_a time_n that_o the_o blood_n be_v enter_v into_o or_o issue_v out_o of_o the_o ventricle_n in_o healthy_a man_n this_o pause_n be_v so_o short_a as_o not_o to_o be_v distinguish_v from_o either_o of_o the_o two_o contrary_a motion_n but_o sufficient_o manifest_v in_o man_n at_o the_o point_n of_o death_n it_o be_v also_o double_a there_o be_v one_o respite_n betwixt_o the_o systole_n and_o diastole_n and_o another_o betwixt_o the_o diastole_n and_o systole_n and_o this_o be_v the_o natural_a state_n of_o the_o heart_n as_o to_o the_o figure_n or_o form_n of_o the_o heart_n in_o those_o contrary_a motion_n each_o and_o the_o figure_n of_o it_o in_o each_o from_o the_o dissection_n of_o animal_n alive_a from_o the_o commodity_n of_o its_o motion_n and_o quiet_a and_o from_o the_o position_n of_o its_o fiber_n and_o other_o part_n we_o have_v learn_v it_o to_o be_v thus_o in_o the_o systole_n it_o may_v be_v observe_v that_o 1_o the_o point_n of_o the_o heart_n be_v draw_v upward_o towards_o the_o basis_n of_o it_o in_o order_n to_o the_o expulsion_n of_o the_o blood_n the_o length_n of_o it_o be_v diminish_v and_o breadth_n proportionate_o increase_v because_o the_o basis_n be_v immovable_a in_o respect_n of_o the_o cone_n which_o be_v fasten_v neither_o to_o nor_o by_o any_o vessel_n 2_o the_o inner_a wall_n or_o side_n towards_o the_o rib_n be_v bring_v near_o each_o to_o other_o because_o they_o be_v constringe_v and_o make_v narrow_a as_o may_v be_v perceive_v by_o put_v a_o finger_n into_o either_o of_o the_o ventricle_n at_o the_o time_n of_o their_o contraction_n but_o the_o outward_a become_v tumid_a seem_v to_o be_v enlarge_v in_o latitude_n from_o the_o contraction_n of_o all_o part_n inflate_v in_o the_o tension_n or_o stretch_v 3_o the_o fore_a part_n of_o the_o heart_n be_v lift_v up_o towards_o the_o sternum_fw-la and_o chief_o near_o the_o base_a for_o where_o the_o pulse_n be_v feel_v there_o do_v the_o heart_n strike_v the_o breast_n with_o its_o base_a that_o part_n be_v lift_v up_o and_o bring_v near_o to_o the_o sternon_n and_o at_o the_o same_o time_n not_o in_o the_o diastole_n be_v the_o heart_n vigorate_v and_o the_o artery_n dilate_v and_o fill_v and_o the_o pulse_n be_v feel_v both_o in_o the_o breast_n and_o wrist_n the_o diastole_n of_o the_o artery_n be_v coincident_a with_o the_o systole_n of_o the_o heart_n but_o the_o pulse_n be_v more_o plain_o feel_v in_o the_o left_a side_n because_o there_o be_v the_o origine_fw-la and_o orifice_n of_o the_o aorta_fw-mi 4_o the_o whole_a heart_n become_v tense_n and_o hard_a and_o contract_v to_o a_o small_a bulk_n as_o be_v manifest_a both_o to_o the_o sight_n and_o to_o the_o touch_n 5_o the_o heart_n appear_v white_a especial_o in_o imperfect_a animal_n such_o as_o serpent_n frog_n eel_n etc._n etc._n by_o reason_n of_o the_o expulsion_n of_o the_o blood_n in_o the_o systole_n in_o the_o perisystole_n when_o the_o heart_n be_v soft_a lux_fw-la and_o in_o its_o proper_a state_n 1_o the_o cone_n recede_v from_o the_o base_a and_o in_o some_o animal_n the_o base_a also_o recede_v from_o the_o cone_n 2_o the_o lateral_a part_n both_o the_o interior_a and_o exterior_a be_v tend_v towards_o the_o rib_n 3_o the_o anterior_a face_n of_o the_o heart_n sink_v down_o and_o the_o posterior_n be_v depress_v especial_o near_o the_o orifice_n of_o the_o great_a artery_n in_o the_o diastole_n which_o begin_v in_o the_o middle_n of_o the_o dilatation_n and_o end_n in_o the_o middle_n of_o the_o contraction_n 1_o the_o upper_a side_n be_v lift_v up_o and_o distend_v by_o the_o blood_n fall_v into_o the_o ventricle_n out_o of_o the_o vena_fw-la cava_fw-la and_o arteria_fw-la venosa_fw-la the_o swell_a sensible_o begin_v at_o the_o base_a and_o progress_v to_o the_o cone_n but_o the_o base_a do_v not_o they_o strike_v the_o breast_n because_o the_o artery_n at_o that_o instant_n be_v contract_v and_o the_o heart_n cease_v from_o expulsion_n of_o the_o blood_n 2_o the_o heart_n be_v flaccid_a and_o soft_a because_o it_o be_v then_o only_o passive_a in_o receive_v the_o blood_n 3_o the_o side_n become_v extense_fw-la and_o the_o cavity_n enlarge_v and_o therefore_o if_o you_o put_v your_o finger_n into_o the_o heart_n during_o the_o diastole_n you_o shall_v perceive_v no_o constriction_n as_o in_o the_o systole_n 4_o the_o heart_n appear_v red_a because_o of_o the_o tenuity_n of_o its_o wall_n and_o their_o repletion_n with_o blood_n 5_o the_o cone_n recede_v from_o the_o base_a make_v the_o heart_n long_o that_o it_o may_v be_v more_o capable_a of_o blood_n and_o thus_o do_v the_o heart_n vary_v its_o figure_n in_o each_o of_o these_o three_o position_n of_o the_o depuration_n of_o the_o blood_n exercitation_n the_o seven_o of_o the_o depuration_n of_o the_o blood_n from_o the_o circulation_n of_o the_o blood_n we_o as_o nature_n advance_v to_o the_o depuration_n or_o defecation_n of_o it_o from_o its_o unprofitable_a or_o excrementitious_a part_n and_o here_o we_o be_v to_o consider_v 1_o the_o generation_n 2_o the_o several_a sort_n of_o excrement_n generate_v in_o and_o to_o be_v separate_v from_o the_o blood_n 3_o the_o part_n in_o which_o and_o 4_o the_o manner_n how_o they_o be_v separate_v concern_v the_o first_o we_o observe_v that_o the_o blood_n be_v a_o heterogeneous_a liquor_n excrement_n the_o genealogy_n of_o the_o excrement_n consist_v of_o
which_o the_o part_n be_v make_v be_v not_o blood_n but_o a_o certain_a liquid_a juice_n very_o like_o the_o white_a of_o a_o egg._n 60_o 13._o nevertheless_o blood_n may_v be_v the_o nourishment_n of_o such_o part_n who_o substance_n be_v most_o sanguineous_a and_o what_o those_o be_v 61_o 14._o the_o manner_n how_o the_o vital_a heat_n be_v conserve_v and_o the_o vital_a spirit_n continual_o recruit_v ex_fw-la sanguine_a 62_o 15._o the_o reason_n of_o the_o mication_n or_o pant_a motion_n of_o the_o blood_n in_o the_o artery_n 64_o exercitation_n the_o six_o of_o the_o motion_n of_o the_o blood_n its_o condition_n and_o cause_n art_n 1._o the_o method_n of_o the_o whole_a chapter_n 66_o 2._o that_o the_o motion_n of_o the_o blood_n be_v circular_a ibid._n 3._o from_o the_o vena_fw-la cava_fw-la into_o the_o right_a ventricle_n of_o the_o heart_n 67_o 4._o from_o the_o right_a ventricle_n by_o the_o vena_fw-la arteriosa_fw-la into_o the_o lung_n ibid._n 5._o from_o the_o lung_n through_o the_o arteria_fw-la venosa_fw-la into_o the_o left_a ventricle_n ibid._n 6._o from_o the_o left_a ventricle_n into_o the_o great_a artery_n and_o thence_o into_o the_o small_a artery_n 68_o 7._o from_o the_o small_a artery_n through_o the_o substance_n of_o the_o flesh_n into_o the_o small_a vein_n ibid._n 8._o how_o the_o new-made_a blood_n be_v circulate_v with_o the_o old_a 69_o 9_o that_o more_o blood_n pass_v through_o the_o heart_n in_o a_o hour_n than_o can_v be_v supply_v from_o the_o chyle_n in_o several_a day_n ibid._n 10._o the_o necessity_n of_o this_o circulation_n infer_v from_o three_o consideration_n viz._n 70_o 11_o the_o quantity_n of_o blood_n contain_v in_o the_o heart_n in_o its_o diastole_n 71_o 12_o the_o quantity_n expel_v out_o of_o it_o in_o its_o systole_n ibid._n 13_o the_o number_n of_o pulse_n in_o a_o hour_n 72_o 11._o that_o the_o circulation_n be_v universal_a in_o all_o the_o artery_n and_o vein_n of_o the_o body_n 73_o 12._o but_o after_o a_o peculiar_a manner_n in_o a_o infant_n unborn_a 75_o 13._o that_o this_o motion_n of_o the_o blood_n be_v continual_a 76_o 14._o vehement_a 77_o 15._o swift_a ibid._n 16._o of_o equal_a velocity_n in_o the_o artery_n and_o vein_n 78_o 17._o the_o blood_n not_o the_o cause_n of_o its_o own_o motion_n in_o respect_n of_o any_o motive_n faculty_n inhaerent_a in_o it_o 80_o 18._o nor_o in_o respect_n of_o its_o ebullition_n ibid._n 19_o nor_o of_o its_o rarefaction_n 81_o 20._o but_o of_o its_o quantity_n distend_v the_o ventricle_n of_o the_o heart_n 83_o 21._o the_o blood_n not_o move_v by_o attraction_n 84_o 22._o nor_o by_o vection_n ibid._n 23._o but_o by_o impulsion_n of_o the_o heart_n endow_v with_o a_o pulsifick_a faculty_n if_o any_o such_o may_v be_v admit_v ibid._n 24._o the_o fabric_n of_o the_o heart_n a_o remote_a cause_n of_o the_o motion_n of_o the_o blood_n 87_o 25._o the_o motion_n of_o the_o heart_n describe_v as_o consist_v of_o two_o contrary_a motion_n and_o a_o respite_n betwixt_o they_o ibid._n 26._o and_o the_o figure_n of_o it_o in_o each_o 88_o exercitation_n the_o seven_o of_o the_o depuration_n of_o the_o blood_n art_n 1._o the_o genealogy_n of_o the_o excrement_n in_o the_o blood_n 91_o 2._o exemplify_v in_o the_o distillation_n of_o wine_n 93_o 3._o the_o several_a sort_n of_o those_o excrement_n and_o their_o definition_n 94_o 4._o the_o reason_n why_o each_o particular_a excrement_n be_v determinate_o import_v into_o the_o part_n particular_o comparate_v for_o its_o separation_n 97_o 5._o not_o that_o it_o be_v so_o direct_v by_o any_o intelligence_n or_o distinguish_a faculty_n 99_o 6._o nor_o that_o it_o be_v attract_v by_o the_o like_a excrement_n contain_v in_o that_o part_n ibid._n 7._o but_o that_o there_o be_v a_o certain_a peculiar_a conformity_n of_o the_o magnitude_n and_o figure_n betwixt_o the_o minute_n particle_n of_o this_o or_o that_o excrement_n and_o the_o pore_n of_o this_o or_o that_o part_n peculiar_o constitute_v for_o the_o reception_n of_o it_o 100_o 8._o which_o be_v also_o the_o cause_n of_o the_o separation_n of_o particular_a excrement_n in_o particular_a part_n 101_o 9_o the_o difference_n of_o colature_n use_v by_o nature_n in_o the_o separation_n of_o humour_n in_o the_o body_n 102_o 10._o the_o reason_n and_o manner_n of_o the_o separation_n of_o the_o serum_fw-la from_o the_o blood_n in_o the_o kidney_n 104_o 11._o of_o the_o phlegmatic_a excrement_n in_o the_o stomach_n and_o gut_n 105_o 12._o of_o the_o bilious_a excrement_n accompany_v the_o phlegmatic_a so_o far_o 106_o 13._o why_o the_o blood_n be_v not_o carry_v immediate_o out_o of_o the_o trunk_n of_o the_o vena_fw-la porte_fw-fr into_z that_o of_o the_o vena_fw-la cava_fw-la but_o through_o the_o various_a meander_n in_o the_o liver_n 109_o 14._o and_o why_o it_o be_v transmit_v through_o the_o parenchyma_n of_o the_o liver_n ibid._n 15._o that_o the_o parenchyma_n be_v the_o principal_a part_n of_o the_o whole_a liver_n 110_o 16._o and_o a_o kind_n of_o streyner_n 111._o 17._o who_o particle_n be_v contex_v after_o a_o peculiar_a manner_n and_o pore_n of_o â—ivers_a sort_n in_o respect_n whereof_o the_o bile_n be_v therein_o separate_v from_o the_o blood_n mechanical_o ibid._n 18._o the_o same_o infer_v from_o four_o considerable_n viz._n 112_o the_o equal_a distribution_n of_o the_o capillary_a branch_n of_o all_o the_o vessel_n of_o the_o liver_n ibid._n the_o pulsation_n of_o the_o vena_fw-la porte_fw-fr within_z the_o liver_n 113_o the_o assistance_n of_o that_o pulsation_n by_o the_o hepatique_a nerve_n 114_o the_o resuscitation_n of_o vitality_n in_o the_o blood_n in_o the_o branch_n of_o the_o vena_fw-la porte_fw-fr within_o the_o liver_n and_o a_o new_a fermentation_n thereof_o previous_a to_o the_o separation_n of_o the_o bile_n ibid._n 19_o the_o various_a manner_n of_o the_o excretion_n of_o excrement_n after_o they_o be_v separate_v and_o collect_v 116_o 20._o the_o particular_a manner_n of_o the_o excretion_n of_o the_o bile_n and_o 117_o 21._o the_o cause_n thereof_o 118_o 22._o paradox_n that_o we_o have_v a_o certain_a natural_a feel_n whole_o distinct_a from_o the_o animal_n and_o independent_a upon_o the_o brain_n 119_o exercitation_n the_o eight_o of_o respiration_n art_n 1._o the_o connexion_n of_o this_o discourse_n to_o the_o precedent_n 126_o 2._o the_o disparity_n betwixt_o respirà tion_n and_o pulsation_n both_o as_o to_o their_o time_n or_o period_n and_o as_o to_o their_o uses_n ibid._n 3._o respiration_n describe_v 130_o 4._o the_o efficient_a cause_n of_o inspiration_n be_v the_o dilatation_n of_o the_o breast_n impel_v the_o ambient_fw-la aer_fw-la into_o the_o lung_n ibid._n 5._o and_o the_o cause_n of_o expiration_n be_v only_o the_o spontaneous_a contraction_n of_o the_o breast_n 132_o 6._o the_o disatation_n of_o the_o chest_n and_o lung_n not_o from_o any_o motive_n faculty_n congenial_a to_o the_o lung_n 133_o 7._o nor_o from_o the_o impulse_n of_o the_o blood_n out_o of_o the_o heart_n into_o the_o lung_n 134_o 8._o nor_o from_o the_o motion_n of_o the_o muscle_n of_o the_o thorax_n 135_o 9_o but_o from_o the_o diaphragme_n move_v by_o a_o congenite_fw-la faculty_n ibid._n 10._o yet_o the_o intercostal_n and_o pectoral_a muscle_n be_v allow_v to_o conspire_v with_o the_o diaphragme_n in_o respiration_n violent_a and_o arbitrary_a 137_o 11._o the_o final_a cause_n of_o respiration_n not_o the_o refrigeration_n of_o the_o heart_n or_o vital_a flame_n but_o the_o subtiliation_n of_o the_o blood_n which_o by_o the_o admistion_n of_o aer_fw-la be_v make_v the_o more_o convenient_a fuel_n of_o the_o vital_a lamp_n and_o matter_n of_o the_o spirit_n 138_o 12._o the_o same_o exemplify_v in_o the_o accension_n of_o flame_n in_o wood_n by_o aer_fw-la blow_v out_o of_o bellows_o and_o 139_o 13._o infer_v from_o the_o structure_n of_o the_o lung_n 140_o 14._o the_o use_n of_o expiration_n 141_o 15._o a_o problem_n of_o the_o respiration_n of_o the_o foetus_fw-la in_o the_o mother_n womb_n 142_o 16._o the_o motion_n of_o the_o brain_n not_o dependent_a upon_o respiration_n but_o upon_o the_o pulsarion_n of_o the_o artery_n 145_o 17._o the_o secondary_a uses_n of_o respiration_n 147_o exercitation_n the_o nine_o of_o the_o lymphduct_n art_n 1._o the_o lymphduct_n a_o new_a and_o excellent_a invention_n 149_o 2._o to_o who_o the_o honour_n of_o their_o discovery_n be_v to_o be_v ascribe_v ibid._n 3._o their_o description_n 150_o 4._o difference_n 151_o 5._o origination_n ibid._n 6._o insertion_n ibid._n 7._o situation_n and_o progress_n 152_o 8._o liquor_n deduce_v partly_o from_o the_o artery_n and_o 153_o 9_o part_o fâ—â—m_v the_o nerve_n 154_o 10._o the_o use_v of_o that_o liquor_n 155_o exercitation_n the_o ten_o of_o the_o distribution_n of_o the_o nourishment_n through_o the_o nerve_n art_n 1._o that_o the_o nerve_n be_v vessel_n carry_v the_o nutritive_a juice_n
rule_n of_o galen_n hold_v true_a as_o certain_o it_o do_v quod_fw-la mutatur_fw-la in_fw-la ejus_fw-la speciem_fw-la à _fw-la quo_fw-la mutatur_fw-la facessit_fw-la the_o vein_n can_v never_o be_v think_v fit_a to_o transform_v the_o chyle_n into_o blood_n for_o their_o colour_n be_v white_a and_o somewhat_o translucid_a their_o substance_n viscid_n membranous_a and_o bloodless_a they_o have_v no_o parenchyma_n and_o very_o little_a either_o of_o heat_n or_o spirit_n of_o their_o own_o whereas_o on_o the_o contrary_a the_o blood_n be_v of_o a_o deep_a red_a not_o translucid_a of_o a_o substance_n fluid_fw-la and_o interminate_a and_o abound_v with_o heat_n and_o spirit_n and_o therefore_o it_o be_v vain_a to_o expect_v a_o assimilation_n where_o the_o suppose_a agent_n and_o patient_n be_v of_o nature_n in_o all_o thing_n so_o incompatible_a so_o contrary_a we_o deny_v not_o that_o the_o vein_n in_o some_o respect_n conduce_v to_o the_o conservation_n of_o the_o blood_n but_o how_o only_o as_o they_o be_v organ_n inservient_fw-la to_o the_o defence_n of_o it_o from_o external_a injury_n and_o the_o reduction_n of_o it_o from_o the_o part_n upon_o which_o it_o be_v new_o affuse_v out_o of_o the_o artery_n and_o as_o for_o any_o similar_v action_n of_o the_o vein_n upon_o the_o blood_n they_o have_v none_o at_o all_o yea_o their_o office_n of_o conserve_n it_o do_v consist_v chief_o in_o their_o inactivity_n i.e._n in_o this_o that_o they_o be_v not_o apt_a to_o alter_v or_o deprave_v it_o as_o glass-vessell_n be_v the_o best_a to_o conserve_v liquor_n in_o because_o they_o neither_o communicate_v any_o ill_a quality_n of_o their_o own_o nor_o permit_v the_o like_a to_o be_v communicate_v from_o other_o to_o they_o but_o that_o which_o do_v principal_o conserve_v the_o blood_n in_o the_o purity_n of_o its_o nature_n be_v the_o very_a same_o thing_n that_o make_v it_o from_o the_o beginning_n viz._n the_o vital_a heat_n and_o spirit_n derive_v from_o the_o heart_n which_o by_o their_o enliven_a warmth_n and_o continual_a motion_n do_v not_o only_o vindicate_v the_o blood_n from_o corruption_n but_o also_o all_o the_o solid_a part_n of_o the_o body_n and_o so_o even_o the_o vein_n themselves_o also_o as_o long_o as_o the_o lamp_n of_o life_n continue_v burn_v and_o that_o be_v once_o extinguish_v how_o soon_o alas_o do_v all_o part_n of_o the_o body_n yield_v to_o the_o quick_a tyranny_n of_o corruption_n 3_o nor_o have_v the_o heart_n more_o right_a to_o this_o noble_a office_n of_o sanguification_n for_o blood_n nor_o the_o heart_n but_o the_o vital_a spirit_n reside_v in_o the_o blood_n that_o borrow_v all_o its_o vital_a heat_n and_o activity_n mere_o from_o the_o vital_a blood_n contain_v in_o its_o ventricle_n and_o distribute_v into_o its_o substance_n by_o the_o coronary_a artery_n of_o which_o vital_a influx_n be_v the_o heart_n deprive_v but_o for_o some_o few_o moment_n it_o will_v soon_o become_v as_o torpid_a and_o motionless_a as_o any_o other_o part_n of_o the_o whole_a body_n so_o far_o be_v it_o from_o exalt_v the_o chyle_n into_o so_o noble_a a_o nectar_n as_o the_o blood_n be_v by_o any_o similar_v action_n of_o its_o own_o to_o assure_v this_o please_v you_o take_v out_o the_o yet-panting_a heart_n of_o any_o the_o strong_a and_o sound_a animal_n and_o have_v with_o warm_a water_n rinse_v all_o the_o blood_n out_o of_o the_o ventricle_n fill_v they_o again_o with_o warm_a chyle_n or_o milk_n and_o see_v whether_o it_o will_v be_v able_a to_o convert_v the_o same_o into_o blood_n certain_o you_o shall_v find_v none_o the_o least_o change_n to_o be_v wrought_v upon_o the_o liquor_n infuse_v yet_o the_o heart_n be_v a_o solid_a and_o strong_a part_n and_o one_o will_v scarce_o think_v it_o probable_a that_o that_o action_n which_o it_o be_v suppose_v to_o perform_v by_o reason_n of_o its_o solid_a substance_n shall_v be_v intercept_v in_o so_o short_a a_o space_n of_o time_n forasmuch_o therefore_o as_o the_o heart_n do_v in_o a_o moment_n time_n surcease_v its_o activity_n and_o desist_v from_o the_o work_n of_o change_v chyle_n into_o blood_n as_o soon_o as_o the_o vital_a blood_n be_v effuse_v out_o of_o its_o ventricle_n it_o be_v as_o manifest_v as_o certain_a that_o the_o virtue_n generative_a of_o blood_n be_v not_o radicate_v in_o the_o solid_a substance_n of_o the_o heart_n primary_o but_o in_o something_o else_o viz._n in_o that_o very_a thing_n upon_o who_o absence_n immediate_o that_o virtue_n be_v destroy_v which_o be_v the_o vital_a blood_n again_o the_o dissection_n of_o live_v animal_n teach_v we_o that_o the_o vital_a heat_n be_v much_o great_a in_o the_o ventricle_n than_o in_o the_o substance_n of_o the_o heart_n and_o reason_n bid_v we_o thence_o to_o infer_v that_o the_o same_o heat_n be_v original_o in_o the_o ventricle_n and_o but_o at_o second_o hand_n or_o by_o way_n of_o communication_n in_o the_o parenchyma_fw-la now_o if_o the_o activity_n of_o even_o the_o heart_n itself_o be_v derive_v original_o from_o the_o vital_a blood_n and_o that_o the_o vital_a blood_n be_v more_o powerful_a than_o the_o heart_n we_o can_v hardly_o deny_v the_o same_o to_o be_v the_o primary_n cause_n or_o agent_n of_o sanguification_n unless_o at_o least_o it_o shall_v appear_v that_o the_o vital_a blood_n be_v less_o apt_a for_o such_o a_o work_n than_o the_o heart_n but_o compare_v the_o agreeableness_n of_o the_o heart_n to_o such_o a_o office_n with_o that_o of_o the_o vital_a blood_n to_o the_o same_o we_o shall_v quick_o perceive_v which_o of_o the_o two_o have_v the_o great_a for_o the_o vital_a blood_n be_v of_o the_o same_o species_n with_o the_o thing_n to_o be_v make_v or_o produce_v but_o the_o substance_n of_o the_o heart_n be_v far_o different_a from_o it_o it_o be_v therefore_o canonical_a that_o all_o natural_a agent_n endeavour_v according_a to_o their_o energy_n to_o assimilate_v to_o their_o own_o nature_n the_o thing_n upon_o which_o they_o act_n it_o seem_v of_o equal_a certainty_n that_o the_o activity_n of_o the_o vital_a blood_n be_v most_o proper_o consign_v to_o the_o work_n of_o sanguification_n a_o further_a evidence_n of_o this_o may_v be_v draw_v from_o hence_o that_o the_o chyle_n and_o blood_n be_v most_o intimate_o mix_v together_o in_o the_o ventricle_n of_o the_o heart_n while_o the_o chyle_n do_v only_o superficial_o and_o in_o transitu_fw-la touch_v the_o side_n of_o they_o to_o which_o may_v be_v add_v that_o the_o chyle_n make_v but_o a_o very_a short_a stay_n in_o the_o heart_n but_o remain_v constant_o commix_v with_o the_o blood_n until_o it_o be_v thereto_o perfect_o assimilate_v last_o the_o blood_n flow_v in_o the_o heart_n artery_n and_o vein_n do_v exceed_v the_o chyle_n of_o one_o meal_n in_o quantity_n at_o least_o ten_o time_n and_o in_o strength_n or_o activity_n a_o hundred_o for_o what_o be_v more_o potent_a than_o that_o spirit_n which_o enliven_v the_o whole_a body_n what_o soft_a gentle_a and_o more_o easy_o superable_a than_o chyle_n and_o therefore_o no_o doubt_n but_o the_o blood_n do_v easy_o obtain_v the_o victory_n over_o the_o chyle_n and_o overrun_v it_o with_o his_o own_o nature_n to_o secure_v this_o assertion_n from_o all_o doubt_n whatever_o let_v we_o have_v recourse_n to_o the_o observation_n of_o dr._n harvey_n the_o true_a oedipus_n in_o all_o abstrusity_n of_o this_o kind_n of_o the_o progress_n of_o nature_n in_o the_o generation_n of_o the_o part_n of_o a_o animal_n successive_o one_o after_o another_o mentum_fw-la which_o alone_o form_v the_o blood_n in_o a_o chicken_n out_o of_o the_o colliqua_fw-la mentum_fw-la and_o we_o shall_v soon_o be_v satisfy_v that_o the_o first_o blood_n be_v make_v by_o the_o vital_a spirit_n that_o great_a man_n atte_v that_o the_o white_a of_o the_o egg_n do_v for_o some_o day_n after_o the_o hen_n have_v sit_v a-brood_n upon_o it_o retain_v its_o native_a whiteness_n and_o that_o out_o of_o the_o colliquament_n or_o white_a make_v more_o thin_a and_o fluid_a the_o chick_n be_v generate_v without_o the_o addition_n of_o any_o other_o matter_n the_o question_n than_o be_v only_o this_o how_o that_o white_a colour_n in_o the_o colliquamentum_fw-la or_o so_o much_o of_o it_o as_o the_o plastic_a faculty_n convert_v into_o blood_n come_v to_o be_v change_v into_o red_a certain_a it_o be_v this_o can_v be_v effect_v by_o any_o thing_n that_o be_v read_v before_o because_o there_o be_v no_o part_n of_o the_o egg_n of_o or_o incline_v to_o that_o colour_n and_o the_o yelk_n remain_v entire_a a_o good_a while_n after_o there_o be_v blood_n to_o be_v see_v in_o the_o punctum_fw-la saliens_fw-la nor_o be_v it_o the_o fleshy_a part_n that_o communicate_v this_o vermillion_a tincture_n to_o the_o blood_n because_o they_o remain_v white_a after_o the_o blood_n be_v make_v out_o of_o the_o colliquamentum_fw-la
accessary_a organical_a these_o observation_n be_v undeniable_a we_o may_v safe_o assert_v that_o the_o vital_a spirit_n in_o the_o seminal_a matter_n be_v excite_v and_o assist_v by_o the_o external_a heat_n of_o the_o hen_n sit_v upon_o the_o egg_n and_o by_o degree_n become_v active_a and_o infuse_v heat_n into_o the_o vital_a liquor_n wherein_o it_o do_v reside_v do_v thereupon_o in_o process_n of_o time_n induce_v the_o colour_n of_o blood_n and_o that_o only_a by_o mean_n of_o its_o vital_a heat_n and_o motion_n and_o that_o no_o other_o part_n be_v to_o be_v repute_v for_o principal_a agent_n in_o the_o work_n of_o sanguification_n nevertheless_o we_o do_v not_o hereby_o exclude_v concurrent_a extrinsical_a agent_n or_o cause_n but_o into_o that_o account_n ready_o admit_v the_o hen_n who_o warmth_n at_o first_o both_o excite_a and_o assist_v the_o vital_a spirit_n in_o the_o work_n of_o sanguification_n and_o the_o substance_n of_o the_o heart_n itself_o which_o afterward_o conduce_v in_o some_o sort_n to_o the_o same_o nor_o do_v we_o repudiate_v accessary_a organical_a cause_n as_o the_o fabric_n of_o the_o heart_n the_o artery_n and_o vein_n all_o which_o be_v inservient_fw-la to_o the_o continual_a motion_n of_o the_o blood_n only_o we_o affirm_v that_o the_o vital_a spirit_n by_o reason_n of_o its_o heat_n and_o motion_n have_v a_o just_a right_n to_o the_o dignity_n of_o principal_a agent_n in_o make_v of_o blood_n we_o say_v observation_n the_o conversion_n of_o the_o colliquamenâ—um_n into_o blood_n by_o the_o heat_n and_o motion_n of_o the_o vital_a spirit_n illustrate_v by_o sundry_a analogous_n experiment_n and_o observation_n by_o reason_n of_o its_o heat_n and_o motion_n for_o that_o colour_n frequent_o be_v advance_v from_o a_o white_a or_o pale_a to_o several_a kind_n of_o red_a mere_o by_o heat_n and_o motion_n be_v demonstrable_a by_o sundry_a easy_a and_o familiar_a experiment_n our_o confectioner_n well_o know_v that_o long_o boil_v of_o quince_n and_o other_o fruit_n do_v give_v they_o a_o ruddy_a colour_n so_o likewise_o fruit_n bake_v in_o a_o oven_n be_v more_o incline_v to_o redness_n than_o while_o they_o be_v raw_a the_o same_o be_v true_a also_o even_o of_o flesh_n and_o bread_n which_o by_o bake_v or_o roast_v acquire_v redness_n in_o their_o superficial_a part_n and_o some_o chemist_n affirm_v that_o a_o tincture_n of_o bread_n will_v assume_v a_o certain_a degree_n of_o redness_n after_o long_a digestion_n this_o be_v not_o we_o acknowledge_v common_a to_o all_o liquor_n especial_o simple_a one_o for_o simple_a water_n and_o such_o as_o be_v distil_v suffer_v little_a or_o no_o change_n of_o colour_n upon_o decoction_n though_o long_o but_o general_o all_o compound_v liquor_n especial_o if_o they_o contain_v any_o nutritive_a juice_n in_o competent_a quantity_n and_o have_v beside_o any_o touch_n of_o salt_n or_o acid_n spirit_n in_o they_o be_v observe_v to_o acquire_v a_o sanguine_a tincture_n by_o decoction_n upon_o which_o fertile_a hint_n as_o we_o conjecture_v that_o high_o learned_a industrious_a 119._o in_o apolog._n pro_fw-la circulatione_fw-la sanguinis_fw-la advers._fw-la parisan_n p._n 119._o and_o acute_a person_n dr._n ent_n seem_v to_o have_v ground_v that_o ingenious_a opinion_n of_o he_o that_o the_o redness_n of_o the_o blood_n arise_v ex_fw-la aciditate_fw-la spiritus_fw-la vitalis_fw-la salinei_fw-la from_o the_o acidity_n of_o the_o vital_a spirit_n have_v their_o original_n from_o a_o certain_a seminal_a salt_n however_o we_o have_v good_a reason_n to_o persuade_v ourselves_o that_o all_o vital_a liquor_n i._n e_o such_o wherein_o the_o vital_a spirit_n of_o animal_n do_v reside_v be_v apt_a to_o acquire_v more_o or_o less_o of_o redness_n provide_v they_o obtain_v sufficient_a heat_n and_o agitation_n or_o strife_n in_o their_o motion_n this_o be_v evident_a in_o all_o sanguineous_a animal_n in_o which_o the_o chyle_n be_v first_o white_a and_o after_o change_v into_o blood_n and_o as_o for_o exsanguious_a animal_n they_o also_o give_v some_o testimony_n of_o this_o truth_n as_o may_v be_v instance_a in_o oyster_n in_o which_o blood_n be_v frequent_o find_v and_o yet_o without_o a_o prodigy_n in_o summâ—r_a time_n by_o reason_n their_o vital_a heat_n seem_v then_o to_o be_v augment_v and_o in_o winter_n when_o their_o heat_n be_v again_o lessen_v below_o what_o be_v requisite_a to_o induce_v redness_n their_o vital_a juice_n be_v always_o whitish_a to_o return_v to_o sanguineous_a animal_n as_o they_o be_v general_o hot_a of_o constitution_n than_o exsanguious_a so_o be_v their_o sanguine_a part_n always_o hot_a than_o their_o pale_a and_o white_a part_n in_o like_a manner_n in_o cold_a disease_n as_o the_o green_a sickness_n cachexy_n dropsy_n and_o in_o all_o phlegmatic_a constitution_n the_o blood_n be_v pale_a than_o in_o hot_a disease_n and_o constitution_n again_o the_o venal_a blood_n as_o it_o lose_v the_o heat_n which_o it_o have_v acquire_v in_o pass_v through_o the_o heart_n and_o artery_n so_o do_v it_o proportionate_o by_o little_a and_o little_o lose_v that_o florid_n and_o deep_a scarlet_a dye_n that_o it_o have_v in_o the_o heart_n and_o artery_n for_o blood_n let_v forth_o of_o a_o vein_n appear_v bluish_a and_o come_v short_a of_o that_o lively_a fresh_a scarlet_n that_o be_v observe_v in_o blood_n efflux_v from_o a_o artery_n all_o which_o clear_o show_v by_o who_o efficiency_n it_o be_v that_o the_o vital_a juice_n in_o sanguineous_a animal_n be_v excoct_v into_o blood_n and_o what_o conserves_n the_o same_o in_o its_o primitive_a purity_n and_o lustre_n viz._n the_o vital_a spirit_n continual_o renew_v in_o and_o enliven_a the_o blood_n for_o that_o be_v once_o extinguish_v how_o soon_o do_v the_o blood_n degenerate_a into_o cruor_fw-la and_o lose_v its_o fresh_a scarlet_a tincture_n have_v thus_o investigate_v what_o that_o be_v life_n that_o the_o same_o agent_n which_o make_v the_o first_o blood_n in_o a_o embryo_n do_v make_v it_o ever_o after_o in_o a_o animal_n dâ—ring_v life_n which_o make_v the_o first_o blood_n in_o a_o embryo_n by_o convert_v the_o vital_a liquor_n from_o a_o white_a into_o a_o purple_a nectar_n we_o can_v be_v long_o in_o explore_v what_o that_o be_v which_o in_o animal_n make_v blood_n all_o the_o life_n after_o by_o convert_v the_o chyle_n likewise_o from_o a_o white_a into_o a_o red_a liquor_n it_o be_v a_o infallible_a rule_n you_o know_v that_o the_o identity_n of_o effect_n depend_v upon_o the_o identity_n of_o cause_n because_o a_o effect_n be_v not_o suppose_v to_o be_v until_o it_o have_v obtain_v existence_n from_o its_o proper_a cause_n and_o at_o the_o same_o time_n the_o cause_n give_v that_o existence_n they_o can_v but_o give_v also_o the_o identity_n belong_v to_o it_o all_o which_o be_v import_v in_o that_o common_a axiom_n idem_fw-la quà _fw-la idem_fw-la semper_fw-la facit_fw-la idem_fw-la for_o though_o free_a and_o arbitrary_a cause_n may_v act_v at_o liberty_n and_o by_o vary_v the_o manner_n of_o their_o operate_n vary_v also_o their_o effect_n yet_o natural_a one_o be_v bind_v up_o to_o a_o determinate_a mode_n of_o energy_n and_o must_v as_o long_o as_o they_o continue_v the_o same_o act_n after_o one_o and_o the_o same_o way_n and_o so_o produce_v invariable_o the_o same_o effect_n forasmuch_o therefore_o as_o the_o efficient_a of_o the_o first_o blood_n be_v a_o agent_n natural_a and_o not_o arbitrary_a if_o it_o continue_v the_o same_o in_o a_o animal_n while_o the_o animal_n live_v it_o must_v of_o necessity_n continue_v the_o same_o operation_n that_o it_o do_v continue_v the_o very_a same_o during_o life_n be_v most_o certain_a because_o it_o be_v the_o principle_n of_o life_n nor_o can_v life_n subsist_v for_o so_o much_o as_o one_o moment_n without_o it_o nor_o do_v this_o efficient_a of_o blood_n only_o persist_v the_o same_o in_o the_o body_n that_o it_o be_v at_o the_o first_o conception_n but_o grow_v every_o day_n more_o vigorous_a potent_a and_o fit_a for_o the_o work_n until_o the_o animal_n have_v attain_v to_o the_o flower_n of_o his_o age_n and_o to_o imagine_v that_o a_o agent_n natural_a such_o as_o the_o vital_a spirit_n shall_v at_o any_o time_n become_v idle_a intermit_v its_o operation_n and_o not_o exercise_v all_o its_o force_n be_v gross_o absurd_a conclude_v we_o therefore_o that_o the_o vital_a spirit_n as_o it_o be_v the_o efficient_a cause_n of_o sanguification_n in_o the_o embryo_n from_o the_o first_o conception_n so_o be_v it_o constant_o author_n of_o the_o same_o work_n until_o the_o animal_n die_v of_o the_o use_v of_o the_o blood_n exercitation_n the_o five_o it_o follow_v now_o 1._o article_n 1._o that_o we_o inquire_v to_o what_o end_n nature_n have_v consign_v so_o continual_a a_o province_n because_o that_o the_o blood_n be_v not_o the_o general_n nourishment_n of_o the_o body_n because_o as_o this_o of_o sanguification_n to_o that_o
true_a that_o the_o lung_n be_v fill_v with_o aer_fw-la and_o empty_v again_o or_o elevate_v and_o depress_v alternate_o as_o bellows_n be_v yet_o be_v it_o doubtful_a whether_o as_o the_o hand_n which_o move_v the_o bellows_n by_o open_v and_o shut_v they_o be_v the_o cause_n both_o of_o the_o influx_n and_o efflux_n of_o the_o aer_fw-la in_o they_o there_o be_v not_o some_o other_o part_n of_o the_o chest_n beside_o the_o lung_n which_o be_v first_o dilate_v and_o contract_v be_v the_o cause_n why_o the_o lung_n be_v open_v and_o shut_v or_o more_o plain_o whether_o the_o expansion_n of_o the_o lung_n be_v from_o a_o ingenite_fw-la faculty_n and_o that_o the_o lung_n have_v no_o such_o ingenite_fw-la motive-faculty_n be_v sufficient_o manifest_a even_o from_o hence_o that_o their_o motion_n be_v always_o conform_a to_o that_o of_o the_o diaphragme_n and_o from_o hence_o that_o we_o can_v suppress_v accelerate_v or_o retard_v our_o respiration_n as_o we_o please_v other_o derive_v the_o motion_n of_o the_o lung_n from_o the_o heart_n lung_n nor_o from_o the_o impulse_n of_o the_o blood_n out_o of_o the_o heart_n into_o the_o lung_n or_o rather_o the_o blood_n expel_v out_o of_o the_o right_a ventricle_n of_o the_o heart_n through_o the_o vena_fw-la arteriosa_fw-la into_o the_o lung_n and_o so_o lift_v they_o up_o but_o this_o be_v erroneous_a because_o 1_o the_o efflux_n of_o the_o blood_n out_o of_o the_o right_a ventricle_n be_v cause_v by_o a_o ordinary_a motion_n pure_o natural_a to_o the_o heart_n whereas_o as_o we_o say_v even_o now_o respiration_n be_v sometime_o arbitrary_a 2_o the_o cause_n of_o pulsation_n and_o respiration_n will_v then_o be_v not_o only_o one_o and_o the_o same_o but_o those_o motion_n also_o will_v agree_v in_o their_o time_n and_o period_n whereas_o scarce_o four_o nay_o six_o pulse_n be_v equal_a in_o time_n to_o one_o single_a respiration_n 3_o the_o blood_n do_v not_o stay_v long_o enough_o in_o the_o vessel_n of_o the_o lung_n to_o keep_v they_o elevate_v all_o that_o while_o they_o be_v distend_v but_o be_v in_o continual_a motion_n and_o in_o a_o moment_n circulate_v by_o the_o arteria_fw-la venosa_fw-la into_o the_o left_a ventricle_n of_o the_o heart_n and_o where_o it_o be_v retard_v in_o its_o course_n by_o any_o misaffection_n either_o in_o the_o capillary_a vessel_n or_o in_o the_o substance_n of_o the_o lung_n as_o it_o many_o time_n happen_v in_o the_o disease_n vulgar_o call_v the_o rise_n of_o the_o light_n it_o cause_v extreme_a difficulty_n of_o breathe_v 4_o in_o great_a apoplexy_n while_o the_o pulse_n continue_v good_a and_o regular_a the_o respiration_n many_o time_n cease_v other_o will_v have_v it_o that_o the_o lung_n borrow_v their_o motion_n from_o the_o thorax_n or_o thorax_n nor_o from_o the_o motion_n of_o the_o muscle_n of_o the_o thorax_n chest_n contain_v they_o but_o the_o reason_n which_o detain_v we_o from_o assent_v thereto_o be_v that_o after_o the_o chest_n be_v cut_v quite_o open_a the_o lung_n continue_v their_o motion_n for_o a_o good_a while_n and_o strong_o which_o be_v impossible_a if_o they_o derive_v their_o motion_n from_o the_o chest_n now_o it_o be_v evince_v that_o the_o lung_n be_v not_o move_v either_o by_o themselves_o faculty_n but_o from_o the_o diaphragme_n move_v by_o a_o congenite_fw-la faculty_n or_o by_o the_o heart_n or_o by_o the_o thorax_n it_o remain_v that_o they_o must_v be_v move_v by_o some_o other_o part_n in_o the_o breast_n in_o which_o as_o in_o the_o first_o original_n the_o motion_n of_o inspiraiton_n do_v begin_v and_o this_o part_n seem_v to_o be_v no_o other_o but_o the_o diaphragme_n and_o that_o for_o these_o reason_n 1_o in_o wound_n or_o perforation_n of_o the_o breast_n the_o lung_n instant_o fall_v together_o as_o it_o be_v close_v themselves_o for_o some_o short_a space_n while_o the_o diaphragme_n be_v still_o elevate_v and_o depress_v alternate_o contract_v and_o again_o relax_v the_o end_n of_o the_o spuricus_fw-la rib_n and_o cartilage_n to_o which_o it_o be_v annex_v whence_o it_o come_v that_o the_o aer_fw-la rush_v violent_o into_o the_o cavity_n of_o the_o chest_n and_o upon_o the_o elevation_n of_o the_o diaphragme_n be_v drive_v out_o again_o through_o the_o wound_n with_o impetuosity_n sufficient_a to_o blow_v out_o a_o candle_n 2_o every_o man_n in_o inspiration_n feel_v the_o thorax_n to_o be_v dilate_v and_o the_o whole_a abdomen_fw-la lift_v up_o and_o the_o end_n of_o the_o low_a rib_n to_o be_v draw_v inward_a the_o diaphragme_n be_v extend_v downward_o with_o its_o middle_a part_n crowd_v down_o the_o stomach_n liver_n and_o gut_n and_o with_o its_o circumference_n or_o extreme_a part_n contract_v the_o rib_n 3_o allow_v the_o diaphragme_n to_o be_v the_o primum_fw-la movens_fw-la among_o all_o part_n inservient_fw-la to_o inspiration_n we_o may_v easy_o understand_v why_o the_o respiration_n become_v more_o frequent_a and_o remiss_a when_o the_o stomach_n be_v full_a and_o when_o the_o aer_fw-la be_v make_v more_o dense_a than_o ordinary_a by_o fog_n and_o thick_a exhalation_n for_o in_o the_o former_a case_n the_o diaphragme_n have_v not_o room_n enough_o to_o expand_v itself_o downward_o as_o it_o ought_v and_o so_o be_v compel_v to_o compensate_a the_o smallness_n of_o its_o motion_n by_o the_o frequency_n of_o it_o and_o in_o the_o latter_a the_o lung_n be_v so_o prepossess_v with_o gross_a vapour_n as_o that_o they_o can_v admit_v much_o aer_fw-la at_o a_o time_n and_o therefore_o the_o diaphragme_n be_v necessitate_v to_o repeat_v its_o motion_n so_o much_o the_o often_o 4_o in_o apoplexy_n unless_o they_o be_v fatal_a though_o the_o respiration_n be_v almost_o insensible_a yet_o the_o motion_n of_o the_o diaphragme_n be_v continue_v as_o may_v be_v peroeive_v by_o the_o gentle_a motion_n of_o the_o chest._n 5_o respiration_n be_v more_o perturb_a and_o vitiate_a by_o disease_n of_o the_o diaphragme_n than_o by_o those_o of_o any_o other_o part_n of_o the_o breast_n and_o it_o have_v be_v observe_v by_o veslingius_n that_o a_o steatoma_n grow_v upon_o even_o the_o carneous_a part_n of_o it_o cause_v extreme_a difficulty_n of_o breathe_v now_o these_o be_v the_o reason_n that_o have_v induce_v we_o to_o believe_v that_o the_o motion_n of_o respiration_n begin_v in_o the_o diaphragme_n which_o be_v a_o kind_n of_o muscle_n of_o a_o peculiar_a figure_n iiâ—_o syntagm_n anâ—tom_n p._n iiâ—_o substance_n position_n and_o action_n may_v as_o well_o be_v conceive_v to_o be_v extend_v by_o virtue_n of_o a_o certain_a peculiar_a and_o ingenite_fw-la faculty_n as_o the_o heart_n be_v by_o a_o pulsifick_a faculty_n so_o that_o we_o may_v conclude_v the_o same_o to_o be_v the_o prime_n and_o principal_a instrument_n of_o respiration_n natural_a or_o gentle_a we_o say_v natural_a or_o gentle_a by_o contradistinction_n to_o respiration_n violent_a arbitrary_a yet_o as_o well_o the_o interco_v all_o as_o pectoral_a musclâ—â—_n be_v allow_v to_o conspire_v with_o the_o diaphragme_n in_o respiration_n violent_a and_o arbitrary_a or_o arbitrary_a for_o allow_v of_o galen_n triple_a difference_n of_o respiration_n viz._n free_a and_o gentle_a violent_a and_o more_o violent_a or_o sublime_a we_o conceive_v the_o first_o to_o depend_v upon_o the_o diaphragme_n alone_o the_o second_o to_o require_v a_o concurrence_n of_o the_o intercostal_a muscle_n of_o which_o the_o interior_a serve_v to_o contract_n and_o the_o exterior_a to_o dilate_v the_o chest_n and_o the_o last_o to_o be_v effect_v by_o the_o diaphragme_n intercostal_n and_o pectoral_a muscle_n all_o be_v set_v a_o work_n and_o combine_v together_o to_o the_o motion_n and_o as_o for_o respiration_n voluntary_a such_o as_o we_o can_v at_o pleasure_n suppress_v accelerate_v or_o retard_v that_o be_v manifest_o by_o the_o help_n of_o the_o intercostal_a muscle_n there_o be_v no_o other_o instrument_n of_o motion_n voluntary_a but_o the_o muscle_n and_o no_o other_o muscle_n immediate_o conduce_v to_o the_o contraction_n and_o dilatation_n of_o the_o breast_n ex_fw-la arbitrio_fw-la nostro_fw-la but_o the_o intercostal_n concern_v the_o three_o viz._n the_o final_a cause_n or_o use_v of_o respiration_n the_o most_o general_a opinion_n to_o omit_v all_o other_o as_o less_o considerable_a be_v spirit_n the_o final_a cause_n of_o respiration_n not_o the_o refrigeration_n of_o the_o heart_n or_o vital_a flame_n but_o the_o subtiliation_n of_o the_o blood_n which_o by_o the_o admistion_n of_o aer_fw-la be_v make_v the_o more_o convenient_a fuel_n for_o the_o lamp_n of_o life_n and_o matter_n of_o the_o vital_a spirit_n that_o the_o principal_a use_n of_o respiration_n be_v for_o the_o refrigeration_n of_o the_o heart_n which_o though_o very_o ancient_a and_o plausible_a be_v rather_o mere_o conjectural_a than_o areopagitical_a or_o demonstrative_a for_o 1_o as_o aer_fw-la overhot_a be_v injurious_a to_o the_o heart_n so_o be_v aer_fw-la over-cold_a and_o as_o
aer_fw-la moderate_o cold_a be_v beneficial_a to_o the_o heart_n when_o it_o be_v excessive_o heat_v so_o be_v aer_fw-la moderate_o hot_a beneficial_a when_o the_o heart_n be_v too_o much_o cool_v but_o while_o the_o heart_n be_v in_o good_a temper_n than_o the_o aer_fw-la most_o agreeable_a to_o it_o be_v neither_o hot_a nor_o cold_a but_o temperate_a 2_o it_o be_v inconsistent_a with_o the_o prudence_n of_o nature_n to_o make_v the_o natural_a heat_n of_o the_o heart_n so_o intense_a and_o excessive_a as_o to_o require_v perpetual_a ventilation_n with_o cold_a aer_fw-la when_o it_o have_v be_v much_o easy_a for_o she_o to_o have_v kindle_v a_o more_o gentle_a fire_n there_o in_o at_o first_o than_o to_o bring_v cold_a aer_fw-la to_o the_o hearth_n with_o so_o much_o ado_n to_o keep_v it_o in_o moderation_n ever_o after_o and_o in_o case_n that-fire_n shall_v chance_v at_o any_o time_n to_o grow_v less_o or_o languish_v as_o it_o often_o do_v in_o extreme_a cold_a aer_fw-la many_o man_n be_v freeze_v to_o death_n in_o green-land_n russia_n and_o other_o northern_a country_n what_o provision_n have_v nature_n make_v for_o the_o reaccension_n or_o instauration_n of_o it_o 3_o if_o it_o be_v only_o the_o cold_a of_o the_o aer_fw-la that_o be_v beneficial_a to_o the_o heart_n then_o certain_o the_o water_n which_o be_v much_o cold_a than_o the_o aer_fw-la will_v more_o convenient_o satisfy_v that_o necessity_n in_o fish_n which_o yet_o can_v live_v without_o aer_fw-la 4_o in_o person_n of_o cold_a and_o leucophlegmatique_a constitution_n there_o will_v be_v no_o need_n at_o all_o of_o respiration_n especial_o in_o frosty_a weather_n when_o the_o heart_n have_v as_o much_o want_n of_o warmth_n as_o of_o cold_a and_o more_o too_o we_o confess_v indeed_o that_o at_o such_o time_n our_o respiration_n be_v more_o slow_a and_o rare_a and_o in_o the_o heat_n of_o summer_n more_o quick_a and_o frequent_a as_o it_o be_v also_o in_o fever_n but_o the_o reason_n hereof_o be_v that_o in_o summer_n the_o blood_n be_v make_v hot_a be_v soon_o subtiliate_v into_o spirit_n and_o those_o spirit_n fast_o consume_v and_o dissipate_v and_o so_o require_v more_fw-mi aer_fw-la to_o promote_v the_o subtiliation_n and_o inflammability_n of_o its_o spiritual_a part_n so_o that_o it_o shall_v seem_v the_o aer_fw-la be_v require_v rather_o as_o a_o excitement_n than_o as_o a_o hindrance_n to_o the_o vital_a flame_n we_o say_v for_o the_o excitation_n or_o accension_n of_o the_o flame_n of_o life_n by_o subtiliate_v the_o blood_n and_o make_v the_o inflammable_a part_n thereof_o more_o convenient_a fuel_n for_o the_o same_o vital_a flame_n and_o for_o the_o matter_n of_o the_o spirit_n which_o be_v diffuse_v through_o the_o whole_a body_n serve_v to_o conserve_v and_o vivifie_v all_o the_o part_n no_o otherwise_o than_o bellows_n conduce_v to_o the_o accension_n of_o flame_n in_o wood_n for_o as_o the_o aer_fw-la blow_v out_o of_o a_o bellows_n do_v promote_v the_o accension_n of_o fire_n bellows_n the_o same_o exemplify_v by_o the_o accension_n of_o flame_n in_o wood_n by_o aer_fw-la blow_v out_o of_o bellows_n in_o wood_n or_o other_o combustible_a matter_n not_o by_o reason_n of_o any_o cold_a for_o contrary_n never_o generate_v each_o other_o but_o by_o the_o subtlety_n of_o its_o particle_n and_o the_o vehemence_n of_o its_o motion_n in_o respect_n whereof_o it_o both_o dissipate_v the_o ash_n that_o hinder_v the_o ingress_n of_o the_o fire_n and_o impell_v the_o particle_n of_o the_o fire_n into_o the_o pore_n of_o the_o wood_n so_o as_o that_o they_o penetrate_v more_o deep_o into_o the_o substance_n thereof_o invade_v and_o kindle_v all_o the_o inflammable_a particle_n therein_o contain_v so_o do_v the_o aer_fw-la bring_v into_o the_o lung_n and_o commix_v itself_o with_o the_o blood_n circulate_v through_o they_o insinuate_v itself_o by_o the_o arteria_fw-la venosa_fw-la into_o the_o left_a ventricle_n of_o the_o heart_n and_o there_o partly_o by_o its_o subtlety_n partly_o by_o its_o expansive_a motion_n so_o conspire_v with_o the_o pulse_n of_o the_o heart_n as_o to_o conduce_v to_o the_o rarefaction_n and_o subtiliation_n of_o the_o more_o thin_a and_o inflammable_a part_n of_o the_o blood_n that_o so_o they_o may_v be_v make_v both_o commodious_a fuel_n for_o the_o fire_n burn_v in_o the_o heart_n and_o also_o fit_a matter_n of_o the_o vital_a spirit_n all_o the_o difference_n be_v there_o be_v no_o ash_n make_v in_o the_o heart_n the_o flame_n thereof_o be_v more_o pure_a than_o focal-fire_n and_o subsist_v in_o a_o matter_n as_o fine_a and_o subtle_a as_o spirit_n of_o wine_n nor_o be_v there_o any_o sooty_a exhalation_n such_o as_o arise_v from_o oil_n burn_v in_o a_o lamp_n but_o such_o a_o flame_n be_v perpetual_o revive_v out_o of_o the_o blood_n in_o the_o heart_n as_o be_v make_v by_o the_o pure_a spirit_n of_o wine_n set_v on_o fire_n this_o use_n of_o the_o aer_fw-la inspire_v may_v be_v in_o some_o sort_n infer_v from_o the_o very_a structure_n of_o the_o lung_n lung_n and_o infer_v from_o the_o structure_n of_o the_o lung_n for_o to_o what_o purpose_n do_v both_o the_o vena_fw-la arteriosa_fw-la and_o arteria_fw-la venosa_fw-la divide_v and_o disperse_v into_o so_o many_o branch_n and_o surcle_n throughout_o the_o lobe_n of_o the_o lung_n unless_o it_o be_v to_o convey_v the_o aer_fw-la bring_v into_o they_o out_o of_o the_o bronchia_fw-la or_o pipe_n derive_v from_o the_o aspera_fw-la arteria_fw-la together_o with_o the_o blood_n into_o the_o left_a ventricle_n of_o the_o heart_n there_o to_o excite_v the_o vital_a flame_n for_o certain_a it_o be_v from_o the_o structure_n of_o these_o vessel_n that_o the_o aer_fw-la do_v not_o arrive_v at_o and_o enter_v the_o heart_n pure_a and_o sincere_a as_o it_o ought_v to_o do_v in_o case_n it_o be_v to_o refrigerate_v the_o heart_n but_o mix_v with_o the_o blood_n return_v out_o of_o the_o lung_n which_o be_v the_o reason_n why_o in_o the_o dissection_n of_o live_a creature_n no_o aer_fw-la be_v to_o be_v find_v in_o the_o arteria_fw-la venosa_fw-la be_v before_o it_o come_v thither_o thorough_o commix_v or_o confuse_v with_o the_o blood_n nor_o can_v we_o force_v aer_fw-la into_o the_o heart_n through_o the_o lung_n of_o a_o dead_a body_n because_o the_o motion_n of_o the_o blood_n be_v then_o cease_v and_o this_o we_o conceive_v to_o be_v the_o principal_a end_n or_o use_v of_o inspiration_n as_o for_o that_o of_o expiration_n it_o seem_v to_o be_v no_o other_o but_o the_o explosion_n of_o the_o same_o aer_fw-la formerly_z receive_v expiration_n the_o use_n of_o expiration_n together_o with_o the_o halitus_fw-la or_o vapour_n of_o the_o blood_n that_o steam_n from_o it_o while_o it_o be_v circulate_v through_o the_o lung_n for_o as_o to_o that_o antique_a opinion_n of_o the_o discharge_n of_o fullginous_a exhalation_n issue_v from_o the_o heart_n to_o the_o reason_n by_o we_o former_o allege_v to_o discredit_v 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