any_o thing_n as_o one_o that_o be_v in_o a_o fit_a of_o the_o epilepsy_n but_o our_o body_n be_v accustom_v to_o it_o and_o it_o be_v make_v agreeable_a and_o consistent_a with_o circulation_n of_o the_o blood_n become_v less_o troublesome_a when_o we_o have_v occasion_n for_o extraordinary_a respiration_n for_o these_o reason_n it_o be_v plain_a why_o the_o lung_n ought_v to_o be_v in_o a_o continual_a reciprocal_a motion_n the_o first_o of_o which_o be_v self-evident_a and_o needs_o no_o further_a proof_n and_o the_o second_o be_v sufficient_o evince_v by_o the_o consequence_n that_o follow_v when_o this_o lympha_fw-la be_v not_o evacuate_v when_o it_o be_v too_o thick_a or_o too_o much_o in_o quantity_n or_o on_o the_o other_o people_n side_n the_o air_n which_o we_o breath_n be_v too_o thick_a and_o moist_a and_o it_o be_v not_o due_o carry_v off_o there_o follow_v obstruction_n of_o the_o duct_n of_o the_o trachea_n from_o whence_o proceed_v symptom_n of_o a_o asthma_n orthopnaea_n and_o duspnaea_n some_o sort_n of_o phthisicks_n and_o a_o great_a many_o more_o dangerous_a symptom_n for_o when_o it_o be_v too_o thick_a it_o stick_v fast_o to_o the_o coat_n of_o the_o lung_n and_o not_o be_v easy_o enough_o mix_v and_o incorporate_v with_o the_o air_n the_o quantity_n of_o it_o increase_v till_o it_o stuff_v up_o the_o cavity_n of_o the_o lung_n and_o when_o it_o be_v too_o much_o in_o quantity_n though_o it_o be_v thin_a enough_o yet_o the_o air_n be_v not_o able_a to_o carry_v it_o off_o fast_o enough_o it_o run_v down_o the_o side_n of_o those_o tender_a vessel_n and_o by_o a_o gentle_a irritation_n raise_v a_o tickle_a cough_n last_o when_o the_o humour_n that_o moisten_v the_o lung_n be_v almost_o natural_a as_o to_o quality_n and_o quantity_n yet_o if_o the_o air_n be_v thick_a and_o moist_a it_o be_v so_o much_o impregnate_v with_o its_o own_o moisture_n be_v incapable_a of_o carry_v off_o the_o moisture_n supply_v by_o the_o serum_n of_o the_o blood_n whence_o people_n that_o be_v incline_v to_o obstruction_n of_o their_o lung_n in_o foggy_a and_o moist_a air_n find_v they_o more_o oppress_v that_o moisture_n which_o ought_v to_o be_v carry_v off_o be_v leave_v behind_o but_o if_o we_o consider_v further_o the_o use_n of_o the_o lung_n with_o respect_n to_o body_n the_o body_n we_o shall_v find_v other_o reason_n not_o only_o why_o it_o shall_v be_v in_o a_o constant_a motion_n but_o also_o we_o may_v understand_v why_o we_o can_v live_v without_o a_o continual_a and_o free_a circulation_n for_o in_o respect_n of_o the_o body_n the_o lung_n seem_v in_o some_o measure_n heart_n to_o perform_v the_o office_n of_o another_o heart_n and_o as_o the_o left_a ventricle_n of_o the_o heart_n contract_v send_v out_o the_o blood_n into_o all_o the_o part_n of_o the_o body_n by_o the_o ramification_n of_o the_o sanguiferous_a vessel_n so_o the_o lung_n contract_v force_v the_o blood_n contain_v in_o the_o sanguiferous_a vessel_n which_o be_v distribute_v through_o their_o lobe_n into_o the_o left_a ventricle_n of_o the_o heart_n and_o the_o left_a ventricle_n be_v by_o that_o mean_n more_o vigorous_o dilate_v and_o more_o plentiful_o fill_v with_o blood_n a_o large_a quantity_n of_o it_o be_v force_v out_o into_o the_o aorta_n and_o consequent_o the_o blood_n in_o the_o branch_n of_o the_o aorta_n be_v more_o copious_o press_v by_o subsequent_a matter_n into_o the_o root_n of_o the_o vena_fw-la cava_fw-la and_o so_o forward_o into_o the_o right_a ventricle_n of_o the_o heart_n so_o that_o by_o the_o help_n of_o the_o lung_n the_o dilation_n of_o the_o left_a ventricle_n of_o the_o heart_n be_v immediate_o and_o the_o dilation_n of_o the_o right_a mediate_o promote_v that_o the_o lung_n thus_o promote_v the_o dilation_n of_o the_o ventricles_n of_o the_o heart_n it_o be_v very_o reasonable_a to_o believe_v not_o only_o because_o it_o be_v self-evident_a but_o because_o otherwise_o it_o will_v be_v very_o hard_a to_o conceive_v since_o the_o motion_n of_o the_o heart_n be_v only_a contraction_n and_o the_o dilation_n of_o its_o ventricles_n only_o a_o cessation_n from_o that_o motion_n how_o the_o blood_n be_v force_v into_o they_o with_o vigour_n enough_o to_o distend_v their_o cavity_n for_o there_o be_v so_o little_a reason_n to_o expect_v that_o they_o shall_v dilate_v of_o their_o own_o accord_n that_o we_o shall_v rather_o believe_v they_o will_v be_v continual_o contract_v since_o all_o the_o weight_n of_o blood_n contain_v in_o the_o whole_a sanguiferous_a vessel_n of_o the_o lung_n can_v not_o possible_o dilate_v they_o without_o some_o other_o force_n to_o help_v it_o for_o the_o substance_n of_o the_o heart_n be_v contract_v and_o the_o cavity_n of_o the_o left_a ventricle_n so_o considerable_o diminish_v so_o small_a a_o portion_n of_o blood_n as_o have_v liberty_n to_o press_v against_o its_o orifice_n will_v make_v but_o a_o weak_a pressure_n and_o much_o too_o small_a to_o dilate_v the_o ventricle_n in_o so_o little_a time_n as_o intervene_v the_o successive_a contraction_n beside_o the_o heart_n have_v no_o tendency_n at_o all_o to_o dilate_v itself_o since_o that_o will_v make_v it_o unapt_a to_o yield_v to_o contraction_n we_o must_v suppose_v that_o a_o part_n of_o such_o substance_n can_v easy_o be_v dilate_v but_o will_v require_v some_o force_n great_a than_o can_v be_v supply_v by_o a_o inconsiderable_a pressure_n of_o blood_n faint_o intrude_v by_o almost_o nothing_o at_o all_o but_o the_o lung_n be_v almost_o in_o a_o continual_a contraction_n in_o respect_n of_o the_o sanguiferous_a vessel_n and_o consequent_o squeeze_v out_o the_o blood_n contain_v in_o they_o help_v to_o dilate_v and_o extend_v the_o left_a cavity_n of_o the_o heart_n and_o consequent_o the_o right_n that_o the_o dilation_n of_o the_o ventricles_n of_o the_o heart_n be_v only_o a_o contraction_n resolution_n or_o cessation_n from_o contraction_n be_v allow_v and_o agree_v upon_o to_o prove_v then_o that_o the_o venal_a blood_n can_v return_v with_o force_n sufficient_a to_o dilate_v the_o right_a ventricle_n of_o the_o heart_n nor_o be_v sufficient_o able_a due_o to_o extend_v the_o left_a in_o order_n to_o the_o next_o contraction_n by_o that_o force_n it_o receive_v from_o and_o be_v put_v into_o by_o the_o former_a contraction_n but_o be_v assist_v by_o the_o lung_n we_o may_v easy_o perceive_v for_o not_o only_o the_o blood_n in_o its_o vessel_n but_o even_o any_o liquor_n be_v force_v through_o pipe_n who_o cavity_n increase_v the_o further_o they_o run_v from_o their_o narrow_a and_o small_a original_a always_o move_v with_o less_o force_n the_o far_o it_o go_v so_o that_o although_o in_o every_o systole_n the_o blood_n shall_v be_v force_v forward_o from_o the_o left_a ventricle_n by_o a_o successive_a pressure_n of_o subsequent_a matter_n and_o the_o motion_n shall_v be_v strong_a enough_o to_o make_v it_o circulate_v brisk_o through_o the_o narrow_a and_o capillary_a twig_n of_o the_o artery_n yet_o when_o it_o come_v into_o the_o vein_n it_o will_v move_v much_o more_o slow_a and_o by_o that_o time_n it_o come_v to_o the_o heart_n again_o will_v want_v force_n sufficient_a to_o dilate_v the_o right_a ventricle_n and_o the_o right_a ventricle_n be_v not_o due_o dilate_v so_o little_a blood_n will_v be_v squeeze_v into_o the_o lung_n that_o the_o left_a will_v want_v a_o supply_n of_o blood_n to_o dilate_v it_o and_o consequent_o the_o pressure_n of_o blood_n through_o the_o aorta_fw-mi and_o vena_fw-la cava_fw-la will_v be_v so_o weak_a that_o the_o next_o dilation_n of_o the_o right_a ventricle_n will_v be_v weak_a than_o the_o former_a and_o so_o circulation_n will_v gradual_o decrease_v but_o that_o weak_a motion_n of_o the_o blood_n into_o the_o right_a ventricle_n be_v increase_v by_o the_o force_n of_o subsequent_a matter_n from_o the_o left_a the_o motion_n of_o the_o blood_n into_o the_o lung_n be_v consequent_o more_o plentiful_a and_o as_o it_o pass_v through_o they_o be_v violent_o force_v into_o the_o left_a and_o so_o on_o and_o by_o that_o mean_n as_o i_o say_v before_o the_o lung_n distend_v the_o leave_v immediate_o and_o consequent_o the_o right_a mediate_o that_o the_o motion_n of_o the_o blood_n be_v thus_o weaken_a by_o so_o long_a a_o course_n in_o the_o vein_n be_v further_o evince_v if_o a_o vein_n and_o artery_n be_v open_v at_o once_o for_o the_o blood_n run_v out_o of_o the_o artery_n much_o more_o forcible_o and_o indeed_o it_o will_v be_v reasonable_a to_o think_v it_o so_o though_o it_o be_v not_o manifest_v by_o so_o plain_a a_o experiment_n for_o if_o water_n in_o a_o cistern_n be_v put_v into_o a_o violent_a motion_n at_o one_o end_n the_o further_a it_o run_v along_o the_o less_o violent_a be_v the_o force_n of_o it_o and_o it_o be_v further_a evident_a that_o the_o motion_n of_o
the_o lung_n do_v it_o assist_v the_o dilation_n of_o the_o heart_n as_o i_o have_v show_v by_o stop_v the_o breath_n of_o any_o animal_n which_o for_o want_v of_o free_a circulation_n present_o die_v and_o not_o because_o the_o flame_n of_o the_o blood_n be_v by_o that_o mean_v extinguish_v for_o as_o long_o as_o the_o lung_n due_o perform_v respiration_n and_o the_o heart_n violent_o contract_v and_o drive_v the_o blood_n contain_v in_o its_o ventricles_n forcible_o out_o that_o motion_n of_o the_o blood_n be_v by_o a_o continue_a wave_a pressure_n decrease_v be_v enable_v by_o the_o assistance_n of_o the_o motion_n of_o the_o lung_n to_o dilate_v the_o ventricles_n of_o the_o heart_n with_o a_o sufficient_a quantity_n of_o blood_n to_o be_v force_v out_o the_o next_o contraction_n but_o as_o soon_o as_o the_o lung_n cease_v to_o assist_v the_o languid_a motion_n of_o the_o blood_n in_o dilate_v the_o ventricles_n it_o be_v not_o only_o less_o plentiful_o force_v successive_o thus_o into_o the_o ventricles_n of_o the_o heart_n but_o by_o a_o weak_a pressure_n of_o the_o content_n of_o they_o thrust_v out_o each_o succeed_a pulsation_n the_o arterial_a blood_n be_v less_o plentiful_o drive_v forward_o so_o that_o the_o whole_a mass_n circulate_v flower_n by_o degree_n and_o also_o the_o animal_n spirit_n be_v drive_v less_o violent_o into_o the_o muscle_n that_o supply_v of_o spirit_n separate_v in_o the_o cortical_a part_n of_o the_o brain_n be_v not_o so_o powerful_o thirst_n after_o by_o a_o equal_a succession_n of_o matter_n the_o fermentation_n in_o the_o gland_n be_v weak_a and_o consequent_o the_o follow_a contraction_n gradual_o decline_v both_o in_o number_n and_o vigour_n till_o at_o the_o last_o they_o renew_a cease_v but_o if_o before_o the_o circulation_n of_o the_o blood_n be_v quite_o stop_v that_o animal_n be_v again_o permit_v to_o breath_n the_o contractive_a force_n of_o the_o lung_n drive_v blood_n more_o forcible_o into_o the_o left_a cavity_n of_o the_o heart_n so_o that_o the_o next_o pulsation_n a_o great_a quantity_n of_o blood_n be_v force_v into_o the_o artery_n which_o make_v a_o more_o considerable_a protrusion_n of_o blood_n into_o the_o muscular_a gland_n and_o also_o of_o spirit_n through_o the_o nerve_n by_o which_o mean_n the_o thorax_n contract_v more_o violent_o force_v the_o blood_n in_o great_a quantity_n into_o the_o left_a ventricle_n of_o the_o heart_n and_o the_o motion_n of_o the_o heart_n at_o the_o same_o time_n increase_v raise_v circulation_n to_o its_o natural_a force_n by_o squeeze_v blood_n forward_o into_o the_o right_n and_o so_o successive_o from_o hence_o it_o appear_v that_o the_o blood_n be_v force_v into_o the_o ventricles_n of_o the_o heart_n by_o the_o help_n of_o the_o lung_n for_o if_o when_o the_o motion_n of_o the_o lung_n be_v obstruct_v the_o systole_n and_o diastole_n of_o the_o heart_n cease_v in_o a_o short_a time_n it_o must_v needs_o follow_v that_o it_o be_v in_o some_o measure_n preserve_v in_o that_o motion_n by_o they_o and_o it_o be_v further_o prove_v because_o the_o motion_n of_o the_o heart_n do_v not_o only_o soon_o stop_v when_o respiration_n cease_v but_o also_o because_o it_o be_v increase_v by_o a_o renew_a respiration_n and_o any_o one_o that_o will_v be_v further_o satisfy_v of_o the_o truth_n of_o it_o let_v he_o hold_v his_o breath_n a_o considerable_a time_n and_o he_o will_v find_v his_o pulse_n gradual_o decay_v which_o be_v again_o renew_a by_o reiterated_a breathe_v but_o though_o from_o hence_o it_o may_v appear_v that_o unborn_a the_o motion_n of_o the_o heart_n be_v promote_v by_o the_o assistance_n of_o the_o lung_n yet_o it_o perhaps_o may_v be_v a_o question_n how_o this_o defect_n be_v supply_v in_o unborn_a infant_n and_o how_o their_o blood_n circulate_v since_o than_o their_o lung_n do_v not_o perform_v the_o office_n of_o respiration_n to_o which_o i_o answer_v that_o in_o a_o infant_n before_o birth_n the_o placenta_n supply_v that_o defect_n for_o that_o additional_a force_n which_o the_o infant_n blood_n receive_v from_o the_o motion_n of_o nourishment_n violent_o force_v into_o the_o umbilical_a vessel_n by_o the_o pulsation_n of_o those_o artery_n that_o separate_v it_o from_o the_o mother_n blood_n in_o the_o womb_n do_v prove_v equivalent_a and_o supply_v the_o office_n of_o the_o other_o but_o as_o soon_o as_o the_o circulation_n of_o the_o blood_n cease_v to_o be_v promote_v by_o a_o sepaparation_n and_o protrusion_n of_o that_o juice_n it_o immediate_o if_o unborn_a die_v and_o after_o it_o be_v bear_v have_v a_o continual_a necessity_n of_o breathe_v as_o long_o as_o it_o live_v where_o it_o be_v to_o be_v note_v that_o as_o in_o one_o that_o breathe_v the_o lung_n more_o immediate_o assist_v the_o left_a ventricle_n so_o in_o one_o unborn_a the_o placenta_n more_o immediate_o promote_v the_o dilation_n of_o the_o right_n now_o although_o it_o from_o hence_o appear_v that_o the_o motion_n of_o the_o heart_n be_v promote_v by_o the_o reciprocal_a motion_n of_o the_o lung_n yet_o it_o do_v not_o whole_o depend_v upon_o it_o for_o if_o it_o do_v the_o motion_n of_o the_o heart_n will_v as_o sudden_o stop_v as_o that_o of_o the_o lung_n but_o since_o it_o do_v but_o partly_o depend_v upon_o it_o circulation_n decline_v by_o degree_n upon_o the_o stop_n of_o it_o but_o that_o it_o may_v be_v better_o understand_v how_o the_o lung_n promote_v circulation_n i_o shall_v next_o show_v that_o the_o sanguiferous_a vessel_n in_o the_o lung_n be_v not_o only_o contract_v by_o the_o contraction_n of_o the_o thorax_n but_o also_o in_o every_o inspiration_n and_o since_o it_o be_v know_v that_o the_o bladder_n of_o the_o lung_n be_v encompass_v about_o with_o the_o small_a twig_n and_o minute_n ramification_n of_o sanguiferous_a vessel_n every_o systole_n of_o the_o right_a ventricle_n of_o the_o heart_n these_o must_v needs_o be_v fill_v and_o distend_v with_o blood_n and_o if_o so_o consequent_o that_o blood_n must_v needs_o be_v force_v by_o the_o contraction_n of_o the_o thorax_n through_o the_o vena_fw-la arteriosa_fw-la with_o a_o considerable_a force_n and_o so_o be_v drive_v into_o the_o left_a ventricle_n of_o the_o heart_n with_o more_o case_n where_o we_o may_v by_o the_o way_n take_v notice_n that_o the_o blood_n in_o the_o arteria_fw-la venosa_fw-la from_o the_o orifice_n of_o the_o right_a ventricle_n be_v not_o only_o by_o that_o mean_v thrust_v into_o the_o minute_n vessel_n of_o the_o lung_n more_o easy_o but_o also_o the_o blood_n that_o be_v to_o be_v force_v forward_o by_o the_o next_o pulsation_n be_v more_o ready_o receive_v by_o the_o vena_fw-la arteriosa_fw-la and_o the_o ventricle_n more_o easy_o contract_v when_o the_o vessel_n of_o the_o lung_n be_v thus_o empty_v by_o a_o contraction_n of_o the_o thorax_n than_o if_o they_o be_v distend_v that_o subsequent_a matter_n in_o the_o depend_v part_n be_v receive_v and_o drive_v after_o it_o with_o less_o difficulty_n the_o resistance_n that_o distend_v vessel_n will_v make_v to_o the_o egress_n of_o it_o be_v thus_o prevent_v by_o the_o help_n of_o the_o lung_n that_o the_o blood_n be_v thus_o force_v out_o of_o the_o lung_n into_o the_o ventricle_n of_o the_o heart_n be_v not_o only_o evident_a from_o reason_n but_o also_o experience_n for_o in_o violent_a cough_n where_o the_o lung_n be_v almost_o in_o a_o continual_a contraction_n the_o blood_n be_v more_o violent_o drive_v into_o the_o habit_n of_o the_o body_n that_o it_o be_v force_v into_o the_o face_n visible_o appear_v and_o that_o it_o also_o flow_v into_o the_o habit_n of_o the_o body_n be_v evident_a in_o people_n that_o be_v let_v blood_n which_o by_o cough_v much_o be_v plentiful_o force_v out_o of_o the_o orifice_n and_o that_o the_o contraction_n of_o the_o lung_n in_o cough_v can_v no_o otherwise_o force_v the_o blood_n into_o the_o habit_n of_o the_o body_n but_o through_o the_o left_a ventricle_n be_v very_o plain_a and_o last_o that_o not_o only_o the_o left_a ventricle_n be_v by_o that_o mean_n further_o dilate_v but_o consequent_o the_o right_a by_o the_o assistance_n of_o the_o lung_n be_v manifest_a because_o circulation_n be_v present_o quicken_v by_o cough_v so_o that_o this_o one_o phaenomenon_n prove_v all_o that_o i_o have_v assert_v concern_v the_o use_n of_o the_o lung_n with_o respect_n to_o the_o heart_n but_o it_o may_v here_o also_o be_v question_v how_o the_o lung_n supply_v the_o heart_n in_o inspiration_n when_o the_o cavity_n of_o the_o lung_n be_v dilate_v to_o which_o i_o answer_v that_o though_o the_o cavity_n of_o the_o lung_n be_v dilate_v in_o inspiration_n yet_o the_o bladder_n which_o be_v swell_v and_o dilate_a with_o air_n even_o then_o make_v a_o moderate_a pressure_n upon_o and_o consequent_o a_o contraction_n of_o the_o blood_n vessel_n that_o be_v
ought_v to_o be_v in_o motion_n p._n 164_o the_o use_n of_o the_o lung_n in_o respect_n of_o the_o body_n p._n 169_o to_o dilate_v the_o ventricles_n of_o the_o heart_n p._n 174_o how_o obstruct_v respiration_n kill_v a_o animal_n p._n 178_o whether_o air_n be_v mix_v with_o the_o mass_n of_o blood_n p._n 191_o whether_o nitre_n be_v p._n 192_o and_o how_o p._n 193_o what_o effect_n it_o have_v upon_o the_o mass_n of_o humour_n in_o the_o lung_n p._n 196_o how_o nitre_n depress_n the_o heat_n of_o the_o blood_n p._n 198_o pag._n l._n read_v 41._o 5._o occasion_n for_o accension_n 53._o 18._o motion_n for_o notion_n 60._o 2._o explode_a 84._o 8._o blood_n for_o body_n of_o the_o heatt_z of_o the_o blood_n even_o philosophy_n in_o general_n be_v so_o creation_n mysterious_a and_o so_o infinite_o out_o of_o the_o reach_n of_o our_o short_a and_o weak_a capacity_n that_o the_o best_a of_o philosopher_n may_v true_o be_v say_v to_o have_v but_o a_o slight_a and_o superficial_a knowledge_n of_o it_o for_o if_o that_o small_a part_n we_o know_v be_v compare_v with_o what_o we_o know_v not_o all_o our_o knowledge_n be_v but_o as_o a_o invisible_a speck_n those_o thing_n to_o which_o it_o extend_v be_v inconsiderable_a if_o compare_v with_o that_o vast_a and_o endless_a mass_n of_o the_o universe_n but_o although_o that_o part_n of_o the_o universe_n which_o in_o some_o measure_n sense_n lie_v within_o the_o cope_n of_o our_o sense_n be_v small_a and_o inconsiderable_a when_o compare_v with_o the_o vast_a extent_n of_o the_o whole_a creation_n yet_o when_o we_o reflect_v on_o the_o vast_a variety_n of_o object_n contain_v within_o those_o narrow_a dimension_n we_o find_v and_o must_v needs_o acknowledge_v it_o very_o considerable_a and_o superabundant_o furnish_v with_o matter_n for_o our_o sense_n to_o work_v upon_o for_o the_o extension_n of_o our_o knowledge_n as_o to_o those_o knowledge_n object_n be_v bound_v by_o limit_n not_o very_o spacious_a &_o notwithstanding_o the_o diligence_n and_o industry_n of_o learned_a man_n and_o the_o great_a improvement_n make_v in_o most_o part_n of_o knowledge_n the_o wise_a man_n and_o the_o most_o profound_a philosopher_n must_v of_o necessity_n own_o that_o of_o those_o thing_n they_o know_v most_o their_o knowledge_n be_v very_o imperfect_a we_o know_v but_o in_o part_n and_o indeed_o so_o small_a a_o part_n that_o it_o chief_o seem_v to_o inform_v we_o more_o sensible_o of_o our_o ignorance_n but_o so_o pleasant_a and_o desirable_a be_v knowledge_n and_o we_o find_v so_o much_o desirable_a uneasiness_n in_o ignorance_n when_o once_o we_o have_v taste_v of_o it_o that_o it_o be_v impossible_a to_o abstain_v from_o a_o further_a pursuit_n after_o it_o at_o least_o notwithstanding_o the_o vast_a disproportion_n betwixt_o our_o knowledge_n and_o ignorance_n which_o continual_o lie_v in_o our_o way_n to_o discourage_v we_o and_o as_o we_o thirst_v after_o knowledge_n with_o a_o desire_n to_o attain_v to_o advantageous_a a_o more_o adequate_a and_o complete_a apprehension_n of_o it_o so_o we_o most_o eager_o pursue_v those_o part_n of_o it_o which_o we_o hope_v to_o understand_v most_o clear_o and_o which_o we_o expect_v to_o make_v a_o progress_n in_o with_o the_o most_o considerable_a advantage_n since_o then_o the_o microcosm_n which_o be_v as_o if_o it_o macrocosm_n be_v a_o type_n and_o epitome_n of_o the_o macrocosm_n lie_v much_o more_o within_o the_o narrow_a cope_n of_o our_o sense_n since_o we_o can_v dive_v and_o search_v into_o all_o and_o the_o inmost_a recess_n of_o it_o and_o come_v near_o to_o those_o spring_n and_o fountain_n upon_o which_o all_o the_o effect_n we_o perceive_v in_o it_o depend_v we_o have_v much_o more_o solid_a and_o firm_a foundation_n to_o proceed_v upon_o than_o in_o any_o other_o part_n of_o philosophy_n whatsoever_o and_o may_v much_o more_o reasonable_o hope_v for_o certainty_n and_o truth_n beside_o the_o pursuit_n of_o it_o must_v needs_o be_v not_o only_o more_o pleasant_a but_o advantageous_a and_o although_o in_o a_o man_n body_n some_o thing_n attain_v be_v much_o more_o apparent_a &_o clear_a than_o other_o yet_o the_o most_o obscure_a may_v easy_o be_v so_o far_o explain_v and_o understand_v as_o be_v necessary_a and_o subservient_fw-fr to_o show_v the_o use_n of_o they_o and_o to_o what_o end_v they_o be_v design_v among_o those_o that_o be_v account_v most_o obscure_a the_o heat_n cause_n of_o the_o blood_n be_v unfortunate_o one_o but_o the_o reason_n why_o it_o be_v so_o be_v not_o that_o it_o be_v less_o apparent_a in_o itself_o but_o rather_o the_o inadvertency_n of_o those_o that_o search_v into_o it_o if_o possible_a such_o great_a man_n as_o have_v write_v concern_v it_o may_v be_v guilty_a of_o so_o great_a a_o fault_n which_o although_o otherwise_o no_o small_a one_o be_v much_o more_o excusable_a in_o those_o who_o more_o weighty_a concern_v take_v they_o of_o a_o deep_a enquiry_n since_o then_o so_o many_o learned_a man_n and_o those_o to_o who_o physic_n be_v not_o least_o oblige_a for_o considerable_a improvement_n have_v write_v on_o this_o subject_a i_o think_v it_o not_o only_a justice_n but_o also_o reasonable_a i_o shall_v show_v upon_o what_o ground_n and_o for_o what_o reason_n i_o have_v reject_v their_o opinion_n before_o i_o take_v leave_n to_o propose_v my_o own_o it_o will_v be_v it_o needless_a to_o spend_v time_n in_o inform_v my_o reader_n that_o both_o ancient_a and_o modern_a writer_n have_v endeavour_v to_o account_v for_o it_o and_o it_o will_v be_v information_n to_o but_o a_o few_o since_o none_o that_o have_v make_v any_o considerable_a progress_n in_o physic_n can_v be_v ignorant_a of_o it_o i_o shall_v only_o as_o brief_o as_o i_o can_v mention_v the_o opinion_n of_o the_o ancient_n that_o it_o may_v better_o appear_v to_o the_o more_o unlearned_a wherein_o they_o be_v deficient_a and_o then_o i_o shall_v consider_v the_o most_o remarkable_a opinion_n of_o the_o modern_n that_o less_o competent_a judge_n and_o young_a student_n in_o physic_n may_v spend_v less_o time_n in_o convince_a themselves_o how_o far_o they_o come_v short_a of_o explain_v the_o reason_n of_o the_o heat_n of_o the_o blood_n among_o the_o insatisfactory_a ancient_n who_o want_v those_o improvement_n in_o anatomy_n that_o have_v be_v make_v of_o late_a to_o direct_v they_o in_o their_o judgement_n some_o fancy_v that_o it_o proceed_v from_o a_o calidum_fw-la innatum_fw-la or_o innate_a heat_n which_o be_v fix_v and_o root_v in_o all_o the_o part_n of_o a_o man_n body_n before_o his_o birth_n and_o that_o this_o continue_a heat_n by_o communicate_v itself_o successive_o to_o the_o nourishment_n of_o the_o part_n as_o soon_o as_o it_o be_v receive_v by_o they_o which_o indeed_o be_v so_o weak_a and_o superficial_a a_o account_n of_o it_o that_o it_o rather_o serve_v to_o please_v the_o unlearned_a then_o to_o satisfy_v the_o curious_a and_o more_o inquisitive_a other_o thought_n that_o there_o be_v a_o sort_n of_o flame_n lodge_v in_o the_o heart_n which_o kindle_v the_o blood_n as_o it_o pass_v through_o it_o but_o modern_n have_v learn_v by_o a_o further_a and_o a_o deep_a insight_n into_o man_n body_n that_o the_o former_a of_o those_o be_v rather_o the_o effect_n than_o the_o cause_n and_o by_o frequent_a dissection_n that_o the_o heart_n be_v altogether_o incapable_a of_o contain_v such_o a_o flame_n and_o also_o that_o that_o which_o they_o suppose_v to_o be_v the_o pabulum_fw-la of_o it_o to_o be_v clot_v blood_n they_o have_v with_o sufficient_a reason_n reject_v they_o both_o wherefore_o pass_v by_o these_o i_o shall_v proceed_v to_o consider_v those_o modern_a opinion_n which_o be_v think_v most_o worthy_a our_o consideration_n the_o first_o that_o consider_v i_o shall_v take_v notice_n of_o be_v the_o opinion_n of_o the_o most_o ingenious_a dr._n willis_n who_o although_o in_o some_o thing_n he_o have_v have_v the_o fortune_n to_o be_v mistake_v with_o other_o learned_a man_n the_o best_a being_n not_o exempt_a yet_o for_o the_o most_o part_n have_v make_v the_o great_a improvement_n of_o any_o of_o his_o predecessor_n in_o theory_n this_o learned_a hot_a author_n in_o the_o eight_o paragraph_n or_o thereabouts_o of_o his_o exercitation_n concern_v the_o heat_n of_o the_o blood_n take_v notice_n that_o there_o be_v three_o modes_n or_o sort_n of_o cause_n by_o which_o liquid_n grow_v hot._n first_o à _fw-la culido_fw-la ad_fw-la moto_fw-mi or_o by_o apply_v they_o to_o something_o that_o be_v hot_a as_o when_o water_n boil_v over_o the_o fire_n second_o when_o saline_n corrosive_n mutual_o act_v upon_o one_o another_o or_o on_o sulphureous_a body_n mix_v with_o they_o by_z an_z intense_a and_o powerful_a agitation_n three_o when_o a_o liquor_n abound_v with_o much_o spirit_n or_o sulphur_n take_v flame_n from_o some_o other_o body_n and_o in_o the_o next_o paragraph_n
title_n do_v not_o at_o all_o diversify_v the_o action_n but_o if_o any_o one_o will_v rather_o signify_v the_o heat_n of_o the_o blood_n by_o any_o of_o these_o different_a word_n i_o shall_v be_v equal_o please_v with_o they_o or_o any_o of_o they_o provide_v they_o all_o meet_v in_o the_o matter_n signify_v by_o they_o and_o do_v not_o deny_v that_o which_o seem_v to_o be_v true_a that_o the_o heat_n proceed_v from_o a_o swift_a intestine_a motion_n of_o its_o particle_n which_o motion_n be_v the_o reason_n why_o it_o affect_v our_o sensory_a so_o as_o to_o cause_v a_o sensation_n of_o heat_n but_o as_o the_o reason_n why_o it_o affect_v our_o sensory_a so_o be_v not_o power_n sufficient_o satisfactory_a to_o explain_v what_o be_v the_o cause_n and_o how_o it_o come_v by_o that_o power_n of_o cause_v such_o a_o sensation_n in_o make_v a_o enquiry_n into_o the_o cause_n of_o that_o i_o shall_v beg_v leave_n to_o make_v use_n of_o that_o word_n which_o i_o think_v to_o be_v most_o expressive_a viz._n fermentation_n for_o since_o in_o every_o mechanical_a action_n there_o be_v a_o agent_n and_o a_o fermentation_n patient_n and_o the_o agent_n operate_v upon_o the_o patient_n by_o move_v powerful_o against_o the_o part_n of_o it_o and_o in_o that_o motion_n the_o part_n of_o the_o one_o strike_v against_o and_o rub_v upon_o the_o other_o so_o far_o it_o may_v be_v call_v attrition_n and_o if_o by_o the_o force_n of_o the_o agent_n the_o motion_n and_o consequent_o attrition_n be_v more_o violent_a and_o the_o consequence_n of_o that_o attrition_n be_v a_o production_n of_o a_o power_n to_o cause_v a_o sensation_n of_o heat_n so_o far_o it_o may_v be_v call_v fermentation_n if_o then_o in_o cause_v the_o heat_n of_o the_o blood_n there_o be_v such_o a_o motion_n and_o attrition_n and_o the_o consequence_n of_o it_o be_v heat_n we_o may_v proper_o say_v the_o blood_n grow_v hot_a by_o attrition_n and_o fermentation_n but_o because_o to_o signify_v the_o heat_n of_o the_o blood_n by_o attrition_n fermentation_n and_o fermentation_n will_v be_v needless_a i_o will_v signify_v all_o that_o action_n by_o fermentation_n and_o when_o i_o say_v the_o blood_n grow_v hot_a by_o fermentation_n i_o will_v be_v understand_v to_o mean_v and_o signify_v both_o that_o attrition_n of_o part_n which_o be_v the_o cause_n of_o fermentation_n and_o also_o fermentation_n which_o be_v the_o consequence_n of_o attrition_n yet_o if_o any_o one_o will_v rather_o say_v it_o grow_v hot_a by_o accension_n they_o have_v my_o assent_n provide_v they_o mean_v thereby_o not_o so_o high_a a_o degree_n of_o heat_n as_o be_v usual_o signify_v by_o that_o word_n but_o since_o it_o sound_v rather_o too_o harsh_a and_o imply_v too_o high_a a_o degree_n of_o attrition_n and_o fermentation_n than_o that_o which_o be_v common_o in_o the_o blood_n i_o more_o willing_o make_v choice_n of_o the_o former_a viz._n fermentation_n and_o since_o i_o have_v say_v thus_o much_o of_o the_o use_n of_o word_n apply_v mixture_n to_o signify_v the_o heat_n of_o the_o blood_n i_o shall_v here_o take_v notice_n of_o what_o be_v by_o way_n of_o discourse_n tell_v i_o by_o one_o to_o who_o i_o communicate_v in_o some_o measure_n my_o notion_n concern_v the_o heat_n of_o the_o blood_n which_o be_v this_o he_o say_v he_o think_v he_o can_v prove_v that_o it_o be_v do_v by_o mixture_n and_o pressure_n and_o that_o he_o can_v explain_v the_o heat_n of_o the_o blood_n by_o that_o notion_n i_o shall_v here_o conceal_v the_o author_n name_n because_o he_o have_v not_o make_v it_o public_a upon_o this_o account_n though_o upon_o some_o other_o to_o very_o little_a purpose_n and_o because_o he_o tell_v i_o he_o intend_v to_o publish_v it_o i_o shall_v for_o his_o satisfaction_n and_o also_o the_o satisfaction_n of_o those_o to_o who_o he_o have_v communicate_v it_o say_v that_o as_o i_o have_v show_v that_o in_o mechanical_a action_n there_o be_v a_o motion_n and_o by_o that_o motion_n there_o must_v be_v employ_v a_o mixture_n to_o any_o one_o that_o do_v but_o understand_v the_o circulation_n of_o the_o humour_n in_o a_o man_n body_n and_o it_o will_v consequent_o follow_v that_o where_o there_o be_v a_o mixture_n and_o a_o motion_n of_o humour_n there_o must_v needs_o be_v also_o a_o attrition_n of_o part_n so_o move_v which_o attrition_n imply_v a_o pressure_n for_o there_o can_v be_v no_o attrition_n without_o a_o pressure_n though_o pressure_n do_v not_o imply_v attrition_n this_o be_v all_o he_o tell_v i_o and_o consequent_o all_o that_o i_o can_v answer_v but_o for_o as_o much_o as_o i_o can_v gather_v from_o the_o remain_a part_n of_o his_o discourse_n the_o most_o essential_a part_n of_o his_o notion_n but_o from_o what_o he_o say_v it_o appear_v not_o what_o pressure_n he_o mean_v that_o be_v a_o pressure_n of_o what_o whether_o of_o the_o particle_n of_o blood_n with_o one_o another_o or_o not_o and_o it_o be_v plain_a that_o he_o do_v not_o believe_v that_o animal_n spirit_n circulate_v through_o the_o nerve_n i_o not_o only_o conclude_v that_o his_o pressure_n be_v only_o of_o the_o particle_n of_o blood_n because_o there_o be_v none_o other_o except_o serum_n to_o mix_v with_o it_o but_o also_o that_o what_o he_o have_v to_o say_v for_o it_o be_v rather_o about_o the_o use_n of_o word_n than_o any_o thing_n else_o and_o therefore_o i_o have_v show_v he_o how_o far_o his_o word_n be_v significant_a in_o my_o hypothesis_n but_o word_n whereby_o we_o signify_v the_o heat_n of_o thing_n the_o blood_n be_v nothing_o at_o all_o to_o the_o cause_n of_o it_o and_o to_o dispute_v whether_o it_o may_v be_v call_v accension_n or_o fermentation_n not_o at_o all_o inform_a what_o be_v the_o principal_a or_o accessary_a cause_n of_o it_o i_o shall_v proceed_v to_o show_v how_o it_o be_v begin_v and_o carry_v on_o and_o by_o what_o that_o be_v what_o humour_n be_v active_a and_o what_o passive_a in_o produce_v heat_n or_o a_o power_n to_o heat_n and_o how_o they_o be_v so_o and_o after_o what_o manner_n as_o also_o where_o they_o chief_o operate_v and_o that_o it_o may_v appear_v we_o be_v to_o consider_v they_o that_o the_o material_a and_o corruptible_a part_n of_o a_o man_n in_o which_o the_o immaterial_a and_o immortal_a be_v lodge_v be_v make_v up_o of_o solid_a and_o liquid_a part_n the_o solid_a part_n be_v all_o those_o vessel_n that_o make_v the_o body_n a_o curious_a contrive_v vascular_a engine_n which_o be_v fill_v with_o and_o actuate_v by_o liquid_n and_o in_o which_o they_o all_o circulate_a and_o as_o those_o vessel_n carry_v different_a sort_n of_o liquid_n so_o they_o be_v call_v by_o different_a name_n vein_n artery_n nerve_n etc._n etc._n through_o the_o artery_n and_o vein_n the_o mass_n of_o blood_n continual_o circulate_v and_o animal_n spirit_n through_o the_o nerve_n the_o vein_n and_o artery_n be_v as_o if_o it_o be_v fermentation_n both_o root_v and_o spring_a from_o the_o heart_n be_v branch_v up_o and_o down_o the_o body_n both_o through_o the_o external_n as_o well_o as_o internal_a part_n except_o those_o that_o the_o vena_fw-la porta_n supply_v and_o the_o nerve_n take_v their_o original_a from_o the_o brain_n and_o spinal_a marrow_n be_v disperse_v through_o the_o whole_a and_o meet_v with_o the_o capillary_a termination_n of_o the_o vein_n and_o artery_n they_o be_v interweave_v one_o with_o another_o terminate_v all_o together_o and_o as_o i_o metaphorical_o express_v it_o in_o my_o treatise_n of_o muscular_a motion_n all_o terminate_v in_o small_a gland_n in_o the_o cavity_n of_o which_o both_o through_o the_o substance_n of_o the_o muscle_n as_o well_o as_o the_o internal_a part_n the_o artery_n lay_v down_o blood_n and_o the_o nerve_n either_o mediate_o or_o immediate_o animal_n spirit_n and_o have_v there_o also_o prove_v that_o a_o subtle_a liquor_n make_v and_o prepare_v in_o these_o gland_n by_o formentation_n be_v according_a to_o the_o different_a degree_n of_o spirit_n send_v there_o by_o our_o appetite_n not_o only_o subtilise_v but_o thrust_v out_o by_o a_o succession_n of_o matter_n into_o the_o fiber_n and_o circulate_v through_o they_o distend_v they_o and_o by_o that_o mean_n contract_v the_o muscle_n and_o there_o also_o have_v show_v that_o the_o fermentation_n be_v cause_v by_o a_o mutual_a conflict_n of_o the_o blood_n and_o spirit_n i_o shall_v now_o in_o this_o treatise_n endeavour_v to_o explain_v from_o that_o mutual_a conflict_n the_o heat_n of_o the_o blood_n and_o because_o some_o as_o yet_o doubt_n whether_o animal_n demonstrate_v spirit_n circulate_v through_o the_o nerve_n or_o not_o and_o other_o though_o they_o be_v willing_a and_o find_v it_o necessary_a to_o grant_v that_o spirit_n do_v real_o run_v through_o they_o yet_o profess_v that_o they_o can_v be_v demonstrate_v
into_o motion_n the_o volatile_a salt_n and_o sulphur_n in_o the_o mass_n of_o blood_n make_v it_o more_o apt_a to_o be_v ferment_v which_o be_v more_o or_o less_o promote_v according_a to_o the_o different_a degree_n of_o the_o activity_n of_o the_o spirit_n neither_o the_o animal_n spirit_n nor_o arterial_a blood_n be_v whole_o active_a or_o passive_a that_o the_o heat_n of_o the_o blood_n proceed_v from_o fermentation_n prove_v that_o heat_n proceed_v from_o attrition_n further_o prove_v not_o only_o solid_a body_n but_o also_o liquid_n grow_v hot_a by_o a_o attrition_n of_o their_o particle_n the_o particle_n of_o 〈◊〉_d of_o these_o humour_n be_v first_o put_v into_o motion_n by_o circulation_n that_o the_o particle_n of_o refine_a and_o rarify_v matter_n be_v by_o a_o inversion_n of_o their_o motion_n put_v into_o a_o high_a degree_n of_o it_o prove_v how_o the_o animal_n spirit_n rarify_v the_o blood_n that_o the_o animal_n spirit_n according_a to_o their_o different_a quantity_n different_o exagitate_v the_o mass_n of_o blood_n prove_v by_o the_o observation_n of_o people_n of_o different_a age_n as_o also_o by_o different_a constitution_n and_o the_o practical_a part_n of_o physic_n how_o spirit_n of_o hartshorn_n raise_v the_o pulse_n that_o the_o spirit_n according_a to_o their_o different_a degree_n of_o activity_n various_o exagitate_v the_o mass_n of_o blood_n the_o sharp_a the_o particle_n of_o blood_n be_v the_o more_o they_o corrode_v the_o spirit_n and_o put_v they_o into_o motion_n the_o keason_n of_o flush_a heat_n in_o the_o scurvy_a prove_v by_o compare_v the_o nature_n of_o the_o medicine_n that_o oppose_v it_o and_o correct_v it_o that_o as_o the_o blood_n as_o more_o or_o less_o volatile_a its_o part_n be_v put_v more_o or_o less_o easy_o into_o motion_n prove_v and_o that_o it_o be_v different_o promote_v according_a to_o teir_n different_a degree_n of_o activity_n of_o the_o spirit_n how_o far_o the_o blood_n and_o spirit_n be_v active_a or_o passive_a how_o the_o heat_n of_o the_o blood_n be_v continue_v some_o objection_n consider_v and_o answer_v the_o first_o objection_n answer_v viz._n whether_o the_o heat_n of_o the_o blood_n be_v chief_o cause_v in_o the_o extremity_n of_o the_o vessel_n the_o reason_n why_o the_o heat_n of_o the_o blood_n in_o time_n decay_v and_o that_o reason_v prove_v how_o fermentation_n be_v carry_v on_o in_o a_o die_a body_n and_o the_o reason_n why_o it_o cease_v when_o it_o be_v quite_o dead_a another_o argument_n to_o prove_v that_o the_o heat_n of_o the_o blood_n depend_v on_o and_o be_v cause_v by_o attrition_n fermentation_n &_o circulation_n mutual_o depend_v on_o one_o another_o the_o second_o objection_n answer_v viz._n that_o fermentation_n may_v be_v perform_v in_o so_o short_a a_o time_n as_o the_o circulation_n of_o the_o blood_n admit_v the_o blood_n be_v more_o powerful_o ferment_v in_o the_o substance_n of_o the_o heart_n than_o in_o any_o proportionable_a part_n of_o the_o body_n beside_o fermentation_n be_v not_o only_o promote_v in_o the_o muscular_a part_n but_o also_o in_o the_o internal_a bowel_n three_o thing_n requisite_a to_o continue_v the_o heat_n of_o the_o blood_n the_o use_n of_o the_o lung_n in_o respect_n of_o the_o soul_n be_v to_o express_v all_o its_o conception_n and_o reason_v why_o the_o lung_n ought_v to_o be_v in_o a_o continual_a motion_n be_v because_o it_o carry_v off_o that_o superfluous_a moisture_n that_o supply_v they_o and_o that_o their_o voluntary_a motion_n may_v less_o preternatural_o affect_v our_o body_n what_o effect_n it_o cause_n when_o too_o thick_a and_o also_o why_o thick_a foggy_a air_n be_v troublesome_a to_o some_o people_n the_o use_n of_o the_o lung_n in_o respect_n of_o the_o body_n seem_v to_o be_v to_o perform_v the_o office_n of_o another_o heart_n by_o help_v the_o blood_n to_o force_v violent_o enough_o into_o the_o cavity_n to_o distend_a they_o against_o the_o next_o contraction_n how_o stop_v the_o breath_n of_o a_o animal_n kill_v it_o why_o by_o permit_v it_o to_o breath_n again_o the_o circulation_n of_o the_o blood_n be_v renew_a how_o the_o motion_n of_o the_o heart_n be_v promote_v in_o a_o infant_n unborn_a the_o office_n of_o the_o lung_n be_v partly_o voluntary_a partly_o involuntary_a what_o effect_n the_o air_n have_v upon_o the_o mass_n of_o blood_n in_o respect_n of_o its_o colour_n nitre_n depress_n the_o heat_n of_o the_o blood_n what_o effect_n nitre_n have_v upon_o the_o serum_n of_o the_o blood_n
about_o they_o but_o though_o there_o be_v no_o such_o contraction_n upon_o inspiration_n yet_o the_o dilation_n of_o the_o thorax_n be_v not_o so_o long_o continue_v but_o that_o the_o lung_n renew_v the_o vigorous_a contraction_n of_o the_o heart_n before_o they_o be_v sensible_o decrease_v as_o i_o have_v before_o explain_v it_o from_o what_o i_o have_v say_v of_o the_o use_n of_o the_o involuntary_a lung_n with_o respect_n to_o the_o rational_a soul_n as_o well_o as_o the_o motion_n of_o the_o heart_n it_o appear_v that_o the_o lung_n perform_v a_o sort_n of_o a_o mix_a action_n partly_o voluntary_a and_o partly_o involuntary_a with_o respect_n to_o the_o body_n it_o be_v involuntary_a be_v carry_v on_o whether_o we_o will_v or_o not_o and_o when_o we_o be_v able_a to_o take_v no_o notice_n of_o it_o and_o with_o respect_n to_o the_o soul_n voluntary_a it_o be_v in_o our_o power_n to_o quicken_v or_o remit_v the_o motion_n of_o they_o different_o to_o modulate_v our_o voice_n as_o occasion_n and_o necessity_n require_v or_o our_o own_o will_n incline_v we_o but_o beside_o these_o extraordinary_a office_n it_o perform_v in_o promote_a both_o a_o circulation_n of_o humour_n and_o of_o discourse_n since_o there_o be_v such_o a_o great_a quantity_n of_o air_n draw_v in_o by_o every_o inspiration_n it_o must_v needs_o produce_v some_o effect_n in_o the_o mass_n of_o blood_n and_o those_o humour_n that_o circulate_v along_o with_o it_o and_o since_o it_o be_v so_o minutely_o mix_v with_o it_o by_o the_o small_a and_o circular_a wind_n of_o the_o blood_n vessel_n about_o the_o bladder_n of_o the_o trachea_n the_o blood_n must_v needs_o be_v sufficient_o impregnate_v with_o nitrous_a particle_n but_o it_o be_v a_o question_n how_o the_o nitre_n of_o the_o air_n come_v to_o be_v mix_v with_o the_o blood_n and_o whether_o the_o air_n itself_o be_v mix_v with_o it_o also_o before_o i_o proceed_v to_o show_v how_o the_o mass_n of_o blood_n be_v affect_v by_o it_o i_o shall_v endeavour_v to_o solve_v these_o two_o question_n and_o first_o that_o the_o air_n itself_o be_v no_o otherwise_o mix_v with_o the_o mass_n of_o blood_n but_o as_o i_o have_v show_v viz._n by_o the_o mediation_n of_o the_o distinct_a vessel_n in_o which_o each_o run_n be_v plain_a because_o we_o do_v perceive_v the_o effect_n of_o it_o in_o that_o mass_n and_o also_o we_o may_v probable_o guess_v so_o because_o air_n will_v hinder_v circulation_n and_o much_o disturb_v it_o air_n be_v always_o unapt_a to_o mix_v with_o liquid_n and_o to_o fly_v from_o their_o embrace_n there_o be_v therefore_o these_o reason_n why_o it_o ought_v not_o to_o be_v mix_v with_o the_o blood_n and_o none_o that_o it_o shall_v nor_o any_o sign_n of_o it_o be_v so_o we_o have_v reason_n to_o conclude_v that_o it_o be_v not_o but_o second_o that_o those_o nitrous_a particle_n which_o swim_v in_o the_o air_n be_v mix_v with_o it_o we_o see_v manifest_o by_o the_o effect_n which_o be_v cause_v by_o they_o there_o be_v the_o same_o alteration_n in_o some_o measure_n make_v in_o the_o blood_n as_o it_o pass_v through_o the_o lung_n as_o when_o expose_v to_o the_o open_a air._n but_o the_o question_n than_o will_v be_v how_o the_o nitre_n of_o the_o air_n be_v mix_v with_o the_o mass_n of_o blood_n and_o by_o what_o mean_v to_o which_o it_o may_v be_v answer_v that_o if_o we_o consider_v what_o fine_a and_o subtle_a body_n those_o particle_n of_o nitre_n be_v which_o we_o draw_v in_o by_o inspiration_n and_o through_o what_o minute_n and_o small_a pore_n they_o be_v capable_a of_o pass_v so_o that_o they_o penetrate_v the_o most_o solid_a body_n in_o nature_n well_o may_v we_o suppose_v that_o they_o can_v find_v pore_n fine_a enough_o to_o pass_v through_o the_o coat_n of_o the_o vessel_n that_o they_o pass_v through_o the_o most_o compact_a and_o solid_a body_n body_n that_o be_v much_o more_o close_a and_o less_o porous_a than_o the_o vessel_n of_o the_o lung_n be_v be_v certain_a for_o otherwise_o hot_a water_n contain_v in_o a_o brazen_a vessel_n will_v never_o grow_v cold_a and_o that_o the_o substance_n of_o brass_n be_v less_o porous_a than_o the_o substance_n of_o the_o lung_n no_o thing_n be_v less_o dubious_a moreover_o since_o that_o the_o nitrous_a particle_n of_o the_o air_n be_v convey_v into_o the_o blood_n be_v so_o plain_a from_o the_o effect_n that_o be_v there_o cause_v by_o they_o they_o must_v needs_o be_v convey_v through_o those_o pore_n there_o be_v no_o other_o way_n at_o all_o for_o they_o to_o pass_v by_o but_o another_o question_n which_o may_v perhaps_o be_v ask_v will_v be_v how_o the_o nitrous_a particle_n of_o the_o air_n be_v force_v through_o those_o pore_n which_o will_v be_v easy_o understand_v by_o take_v notice_n that_o when_o the_o thorax_n be_v violent_o contract_v the_o air_n contain_v in_o the_o bronchia_fw-la be_v violent_o press_v together_o in_o order_n to_o a_o expulsion_n of_o it_o a_o considerable_a number_n of_o those_o particle_n of_o nitre_n must_v needs_o be_v press_v through_o those_o pore_n that_o be_v wide_a enough_o to_o receive_v they_o and_o that_o there_o be_v pore_n wide_a enough_o be_v visible_a from_o what_o i_o have_v say_v it_o appear_v hence_o how_o the_o nitre_n of_o the_o air_n be_v mix_v with_o the_o blood_n i_o shall_v next_o consider_v how_o it_o affect_v it_o and_o what_o effect_n it_o produce_v in_o respect_n of_o heat_n to_o understand_v then_o the_o effect_n that_o it_o have_v upon_o all_o that_o mass_n of_o humour_n that_o circulate_v through_o the_o vein_n and_o artery_n to_o wit_n blood_n and_o serous_a lympha_fw-la we_o be_v to_o consider_v they_o both_o together_o and_o apart_o together_o that_o it_o may_v appear_v how_o they_o influence_n each_o other_o and_o a_o part_n that_o we_o may_v know_v for_o what_o end_n each_o be_v impregnate_v with_o those_o nitrous_a particle_n and_o because_o when_o we_o be_v acquaint_v how_o it_o alter_v each_o single_o it_o will_v better_o appear_v how_o they_o influence_n each_o other_o i_o shall_v first_o consider_v they_o apart_o the_o effect_n then_o which_o we_o perceive_v the_o nitre_n blood_n of_o the_o air_n have_v upon_o our_o blood_n and_o the_o alteration_n we_o be_v sensible_a it_o produce_v be_v either_o in_o respect_n of_o its_o colour_n or_o heat_n that_o the_o air_n alter_v the_o colour_n of_o the_o blood_n colour_n and_o make_v it_o more_o florid_n be_v very_o plain_a in_o extravasated_a blood_n and_o be_v so_o common_o know_v that_o i_o need_v not_o take_v any_o further_a notice_n of_o it_o but_o shall_v show_v what_o other_o effect_n it_o cause_v in_o the_o blood_n and_o how_o have_v therefore_o explain_v the_o heat_n of_o the_o blood_n in_o the_o forego_n treatise_n and_o it_o appear_v that_o it_o be_v cause_v by_o a_o swift_a and_o violent_a agitation_n of_o the_o particle_n of_o the_o spirit_n and_o mass_n of_o blood_n the_o way_n to_o understand_v how_o nitre_n affect_v the_o heat_n of_o the_o blood_n be_v to_o consider_v how_o it_o promote_v or_o hinder_v the_o motion_n of_o those_o part_n of_o matter_n which_o cause_n heat_n which_o as_o i_o conceive_v and_o as_o reason_n seem_v to_o evince_v be_v perform_v after_o this_o manner_n the_o nitre_n of_o the_o air_n consist_v of_o particle_n blood_n not_o at_o all_o incline_v to_o motion_n but_o on_o the_o contrary_a dispose_v those_o body_n they_o be_v mix_v with_o to_o rest_n except_o by_o accident_n when_o they_o be_v too_o powerful_o resist_v and_o oppose_v these_o i_o say_v be_v mix_v with_o the_o mass_n of_o blood_n inviscate_v and_o fetter_v up_o the_o most_o subtle_a spirituous_a part_n and_o hinder_v they_o from_o motion_n by_o which_o mean_n the_o more_o gross_a one_o be_v move_v more_o slow_a and_o the_o heat_n of_o the_o blood_n consequent_o abate_v but_o when_o the_o mass_n of_o blood_n be_v so_o elastic_a and_o the_o part_n of_o it_o move_v so_o strong_a that_o the_o nitre_n can_v depress_v they_o sufficient_o and_o check_v they_o the_o heat_n of_o the_o blood_n be_v increase_v the_o motion_n of_o those_o part_n be_v invert_v that_o the_o nitre_n of_o the_o air_n incline_v those_o body_n to_o rest_n with_o which_o it_o be_v mix_v and_o consequent_o the_o blood_n be_v not_o evident_a only_o by_o expose_v hot_a water_n to_o a_o cold_a freeze_a air_n but_o even_o blood_n and_o nothing_o be_v less_o dubious_a than_o that_o excessive_a cold_a extinguish_v a_o moderate_a heat_n but_o that_o nitre_n when_o it_o be_v not_o powerful_a enough_o to_o check_v and_o extinguish_v the_o heat_n of_o the_o blood_n do_v increase_v it_o i_o have_v before_o explain_v and_o the_o manner_n how_o it_o do_v it_o and_o also_o that_o it_o have_v never_o those_o accidental_a effect_n upon_o liquid_n