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 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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 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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
more_o ready_o to_o its_o motion_n upward_o be_v less_o compact_a above_o then_o below_o i_o shall_v produce_v two_o or_o three_o instance_n which_o prove_v that_o if_o it_o have_v but_o less_o liberty_n to_o ascend_v by_o the_o opposition_n of_o some_o other_o body_n then_o to_o descend_v it_o will_v as_o natural_o fly_v downward_o as_o it_o do_v now_o upward_o when_o it_o be_v otherwise_o and_o i_o shall_v also_o prove_v that_o if_o it_o have_v but_o a_o equal_a resistance_n on_o each_o side_n it_o will_v expand_v orbicular_o and_o first_o that_o if_o flame_n have_v but_o a_o equal_a resistance_n from_o ambient_fw-la body_n on_o each_o side_n it_o will_v expand_v orbicular_o will_v be_v prove_v by_o this_o experiment_n viz._n fill_v a_o hollow_a globe_n with_o gunpowder_n one_o side_n of_o which_o be_v a_o little_o thin_a than_o the_o other_o and_o whatever_o way_n that_o thin_a side_n be_v turn_v whether_o down_o upward_o or_o horizon-ward_n the_o gunpowder_n will_v expand_v and_o break_v out_o that_o way_n second_o to_o prove_v that_o if_o there_o be_v but_o more_o liberty_n for_o the_o descent_n than_o ascent_n of_o it_o fleame_z will_v natural_o fly_v downward_o we_o need_v but_o shoot_v a_o gun_n off_o with_o the_o mouth_n downward_o for_o the_o explauded_a gunpowder_n find_v a_o open_a and_o easy_a passage_n downward_o and_o be_v resist_v upward_o and_o on_o each_o side_n it_o natural_o descend_v but_o some_o perhaps_o that_o do_v not_o thorough_o understand_v why_o a_o thing_n be_v say_v natural_o to_o ascend_v or_o descend_v may_v be_v unwilling_a to_o believe_v that_o when_o a_o gun_n be_v shoot_v downward_o the_o motion_n of_o the_o flame_n be_v a_o natural_a motion_n but_o may_v rather_o think_v it_o preternatural_a but_o that_o it_o may_v appear_v that_o it_o be_v as_o true_o a_o naral_a motion_n in_o philosophy_n philosophy_n as_o the_o ascend_a motion_n of_o it_o i_o shall_v consider_v why_o flame_n may_v be_v say_v natural_o to_o ascend_v fleame_z then_o be_v say_v natural_o to_o ascend_v because_o it_o be_v the_o nature_n of_o it_o for_o the_o most_o part_n to_o do_v so_o which_o be_v as_o much_o as_o to_o say_v the_o nature_n of_o flame_n incline_v it_o to_o ascend_v how_o the_o nature_n of_o it_o incline_v it_o to_o ascend_v i_o have_v already_o show_v and_o that_o there_o be_v the_o same_o reason_n why_o the_o descend_a motion_n shall_v be_v term_v natural_a will_v easy_o be_v prove_v for_o as_o it_o be_v natural_a for_o it_o to_o ascend_v as_o long_o as_o it_o have_v only_o the_o air_n to_o oppose_v its_o motion_n so_o it_o be_v its_o nature_n to_o descend_v when_o the_o order_n of_o opposition_n be_v change_v and_o the_o latter_a be_v as_o much_o a_o natural_a motion_n as_o the_o former_a all_o that_o diversify_v the_o tendency_n of_o flame_n be_v those_o accidental_a circumstance_n which_o be_v about_o it_o and_o as_o a_o ball_n cast_v against_o the_o bottom_n of_o a_o room_n rebound_v upward_o and_o when_o it_o be_v throw_v against_o the_o top_n of_o it_o as_o natural_o fly_v down_o so_o flame_n be_v in_o a_o brisk_a motion_n natural_o fly_v up_o or_o down_o as_o the_o part_n of_o matter_n it_o strike_v against_o resist_v it_o and_o cause_v it_o to_o fly_v back_o from_o they_o have_v make_v this_o short_a digression_n i_o shall_v proceed_v next_o to_o examine_v examine_v diemerbroek_n opinion_n who_o think_v that_o the_o vital_a spirit_n by_o reason_n of_o its_o volatility_n always_o endeavour_v to_o fly_v away_o do_v continual_o agitate_v those_o grosser_n particle_n of_o the_o blood_n with_o which_o it_o be_v entangle_v and_o detain_v from_o flight_n and_o be_v diverse_o vibrate_v and_o beat_v back_o and_o so_o the_o whole_a mass_n be_v keep_v in_o a_o continual_a fermentative_a motion_n there_o be_v a_o heat_n produce_v in_o it_o which_o in_o a_o great_a agitation_n be_v great_a etc._n etc._n and_o so_o differ_v according_a to_o the_o different_a degree_n of_o agitation_n all_o that_o i_o shall_v or_o need_v to_o take_v notice_n of_o here_o be_v that_o that_o agitation_n of_o particle_n which_o he_o say_v cause_v the_o heat_n of_o the_o blood_n rather_o produce_v a_o sensation_n of_o heat_n by_o affect_v our_o sense_n in_o their_o motion_n than_o produce_v that_o which_o we_o call_v heat_n in_o the_o blood_n but_o to_o know_v the_o true_a reason_n of_o the_o heat_n of_o the_o blood_n we_o must_v understand_v how_o those_o particle_n be_v put_v into_o motion_n which_o by_o affect_v our_o sensory_a cause_n such_o a_o sensation_n so_o that_o he_o seem_v to_o i_o to_o say_v no_o more_o then_o that_o that_o which_o have_v a_o power_n to_o cause_n heat_n be_v the_o cause_n of_o that_o power_n when_o he_o ought_v in_o order_n to_o explain_v the_o heat_n of_o the_o blood_n to_o have_v show_v from_o whence_o that_o power_n proceed_v the_o reason_n of_o which_o i_o shall_v have_v take_v in_o some_o measure_n for_o the_o reason_n of_o the_o heat_n potential_o in_o the_o mass_n of_o blood_n but_o from_o what_o he_o have_v say_v it_o appear_v that_o he_o have_v not_o explain_v the_o true_a reason_n of_o the_o heat_n of_o the_o blood_n so_o plain_o that_o i_o need_v say_v no_o more_o against_o it_o dr._n henshaw_n think_v that_o the_o dissimilitude_n betwixt_o the_o chyle_n consider_v and_o blood_n be_v so_o great_a that_o it_o become_v immediate_o the_o cause_n of_o a_o extraordinary_a ebullition_n upon_o their_o mixture_n together_o which_o be_v very_o much_o increase_v by_o the_o reciprocal_a motion_n of_o the_o lung_n whereby_o the_o blood_n be_v wrought_v into_o a_o froth_n by_o that_o time_n it_o get_v into_o the_o left_a ventricle_n of_o the_o heart_n which_o sudden_a excess_n of_o heat_n he_o think_v not_o unlike_o what_o happen_v upon_o the_o mix_n of_o several_a chemical_a liquor_n together_o for_o the_o heat_n often_o become_v so_o great_a that_o they_o often_o endanger_v the_o vessel_n that_o contain_v they_o but_o he_o may_v as_o well_o have_v say_v that_o there_o be_v so_o great_a a_o dissimilitude_n betwixt_o hot_a blood_n and_o cold_a milk_n that_o as_o soon_o as_o the_o milk_n be_v mix_v with_o it_o it_o will_v cause_v a_o extraordiary_a ebullition_n and_o that_o by_o expose_v they_o to_o the_o air_n &_o run_v they_o through_o pipe_n the_o heat_n will_v increase_v but_o this_o be_v so_o plain_o false_a that_o it_o need_v no_o other_o argument_n but_o reflection_n to_o convince_v the_o weak_a reason_n and_o he_o may_v equal_o as_o well_o conclude_v that_o water_n will_v kindle_v a_o fire_n and_o increase_v the_o flame_n of_o it_o because_o oil_n will_v as_o that_o chyle_n will_v put_v the_o blood_n into_o a_o heat_n because_o oil_n of_o turpentine_n and_o spirit_n of_o wine_n will_v grow_v hot_a when_o mix_v together_o but_o the_o conclusion_n be_v manifest_o absurd_a i_o shall_v in_o the_o next_o place_n endeavour_v to_o show_v the_o reason_n of_o the_o heat_n of_o the_o blood_n as_o evident_o as_o possible_o i_o can_v from_o what_o i_o have_v already_o say_v in_o answer_n to_o dr._n willis_n opinion_n it_o sufficient_o appear_v that_o whether_o we_o say_v the_o blood_n grow_v hot_a per_fw-la admotum_fw-la calidi_fw-la accension_n or_o any_o other_o way_n it_o be_v no_o more_o than_o to_o express_v the_o same_o thing_n several_a way_n or_o to_o make_v word_n different_a in_o sound_n to_o express_v one_o and_o the_o same_o thing_n but_o as_o all_o that_o have_v write_v on_o this_o subject_a have_v make_v choice_n of_o a_o opinion_n different_a name_n to_o signify_v the_o heat_n of_o the_o blood_n by_o whilst_o some_o will_v have_v it_o do_v by_o accension_n other_o by_o attrition_n etc._n etc._n so_o they_o have_v by_o that_o mean_n rather_o dispute_v about_o name_n and_o word_n than_o any_o real_a and_o fundamental_a difference_n in_o their_o opinion_n i_o shall_v not_o here_o enter_v into_o a_o dispute_n whether_o the_o blood_n when_o it_o become_v hot_a may_v most_o proper_o be_v say_v to_o grow_v hot_a or_o its_o heat_n express_v by_o any_o one_o of_o those_o title_n they_o have_v be_v please_v to_o signify_v it_o by_o for_o as_o in_o discourse_v about_o the_o constituent_a part_n of_o a_o man_n it_o be_v not_o necessary_a to_o fix_v any_o name_n upon_o that_o man_n but_o whether_o it_o be_v thomas_n robert_n or_o william_n the_o constituent_a part_n of_o he_o if_o he_o be_v a_o perfect_a man_n will_v still_o be_v the_o same_o so_o in_o discourse_v concern_v the_o heat_n of_o the_o blood_n and_o consider_v the_o principal_a cause_n or_o agent_n and_o the_o more_o remote_a and_o accessary_a cause_n it_o be_v no_o matter_n at_o all_o whether_o the_o consequence_n of_o these_o cause_n be_v signify_v by_o the_o word_n accension_n attrition_n or_o fermentation_n because_o the_o difference_n of_o the_o
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
animal_n spirit_n be_v too_o high_a and_o blood_n volatile_a or_o too_o much_o in_o quantity_n they_o raise_v this_o fermentation_n so_o high_a that_o the_o blood_n be_v present_o put_v into_o a_o preternatural_a heat_n from_o whence_o proceed_v that_o preternatural_a heat_n in_o fever_n and_o the_o way_n that_o physician_n either_o do_v or_o can_v take_v in_o such_o case_n be_v either_o to_o take_v down_o the_o animal_n spirit_n by_o withdraw_a part_n of_o their_o pabulum_fw-la and_o by_o acid_n give_v internal_o to_o harden_v the_o texture_n of_o the_o blood_n and_o make_v it_o less_o subject_a to_o grow_v too_o hot_a by_o fermentation_n or_o otherwise_o by_o cool_v and_o fix_v those_o predominant_a spirit_n and_o evacuate_v other_o accessary_a cause_n by_o proper_a excretory_n and_o emuctory_n of_o the_o body_n last_o that_o the_o more_o any_o rarefy_v sulphureous_a body_n be_v expanded_a betwixt_o the_o more_o gross_a and_o solid_a part_n of_o matter_n those_o gross_a one_o be_v put_v into_o a_o strong_a motion_n be_v evident_a from_o a_o musket_n charge_v with_o shot_n which_o with_o a_o small_a quantity_n of_o expanded_a matter_n will_v scarce_o be_v move_v but_o by_o a_o great_a quantity_n of_o explode_a matter_n be_v put_v into_o so_o swift_a a_o motion_n that_o they_o fly_v forcible_o a_o considerable_a way_n have_v thus_o far_o prove_v what_o i_o propose_v to_o be_v reasonable_a motion_n and_o likely_a and_o nothing_o but_o what_o be_v consonant_n to_o the_o practice_n of_o most_o rational_a physician_n i_o proceed_v to_o show_v that_o the_o sharp_a the_o particle_n of_o the_o blood_n be_v they_o corrode_v and_o grind_v the_o spirit_n into_o small_a and_o minute_n particle_n with_o a_o great_a deal_n more_o violence_n and_o by_o that_o mean_n cause_v they_o to_o expand_v more_o vigorous_o and_o by_o put_v they_o into_o a_o strong_a motion_n cause_n a_o high_a degree_n of_o heat_n this_o be_v sufficient_o prove_v by_o the_o preternatural_a effect_n that_o scurvy_a scorbutic_a salt_n cause_n in_o some_o people_n for_o when_o the_o mass_n of_o blood_n be_v impregnate_v with_o acid_n acrid_a humour_n these_o meet_v with_o the_o spirit_n cause_n preter_fw-la natural_a flush_a heat_n which_o appear_v in_o several_a part_n of_o the_o body_n and_o sometime_o in_o the_o whole_a which_o be_v so_o violent_a that_o those_o that_o be_v affect_v with_o they_o complain_v that_o they_o feel_v themselves_o as_o hot_a as_o if_o they_o be_v in_o a_o stew_n or_o a_o bagnio_fw-it that_o this_o preternatural_a heat_n proceed_v from_o corrosive_a salt_n humour_n ferment_v with_o the_o spirit_n be_v very_o manifest_a since_o these_o symptom_n be_v only_o cur_v by_o such_o medicine_n as_o correct_v the_o acidity_n and_o acrimony_n of_o the_o blood_n viz._n when_o it_o most_o partake_v of_o acrimony_n by_o sweet_a diaphoretic_n decoction_n or_o some_o sort_n of_o acid_n which_o dull_a and_o take_v off_o their_o corrode_a edge_n or_o when_o they_o be_v more_o acid_n by_o volatile_a salt_n that_o carry_v they_o off_o by_o sweat_n or_o urine_n or_o by_o acid_n absorber_n which_o by_o correct_v the_o acidity_n of_o the_o pancreatic_a juice_n leave_v the_o ferment_n of_o the_o liver_n more_o predominant_a and_o the_o bitter_a choler_n be_v by_o that_o mean_v breed_v a_o great_a deal_n more_o plentiful_o digest_v and_o carry_v off_o those_o crude_a humour_n which_o by_o the_o aforesaid_a mean_n be_v make_v thin_a enough_o to_o go_v off_o by_o urinal_n and_o insensible_a transpiration_n be_v disperse_v and_o carry_v off_o those_o way_n and_o the_o mass_n of_o blood_n be_v cleanse_v of_o those_o sharp_a humour_n be_v reduce_v to_o a_o healthful_a state_n if_o then_o by_o consider_v the_o nature_n of_o those_o medicine_n that_o it_o correct_v vicious_a humour_n we_o may_v learn_v to_o know_v what_o be_v the_o nature_n of_o those_o humour_n we_o must_v conclude_v that_o whatever_o be_v correct_v by_o medicine_n direct_o contrary_a to_o acrimony_n the_o nature_n of_o that_o humour_n be_v acrid_a and_o when_o by_o the_o use_n of_o volatile_a salt_n the_o distemper_a humour_n of_o our_o body_n be_v attenuate_v and_o dispose_v to_o evacuation_n and_o at_o the_o same_o time_n we_o know_v that_o volatile_a salt_n by_o volatize_v and_o prepare_v the_o superfluous_a fix_a acid_n acrid_a humour_n of_o the_o mass_n of_o blood_n dispose_v they_o to_o be_v carry_v off_o we_o have_v all_o the_o reason_n imaginable_a to_o conclude_v that_o when_o we_o find_v those_o medicine_n carry_v off_o such_o symptom_n that_o they_o be_v cause_v by_o such_o humour_n and_o that_o these_o flush_a heat_n in_o the_o scurvy_a proceed_v from_o acrid_a acid_n humour_n be_v plain_a because_o all_o salt_n meat_n that_o abound_v with_o acid_n and_o all_o sharp_a acrid_a bear_n that_o have_v a_o acrid_a fluid_a salt_n predominant_a in_o it_o as_o also_o vinegar_n and_o such_o like_a make_v those_o symptom_n more_o violent_a if_o then_o both_o from_o the_o method_n of_o cure_n and_o the_o cause_n itself_o augment_v by_o such_o sort_n of_o juice_n we_o gather_v they_o proceed_v from_o sharp_a acrid_a acid_n humour_n we_o may_v be_v certain_a that_o those_o symptom_n be_v cause_v by_o such_o humour_n grind_v and_o corrode_a the_o animal_n spirit_n and_o that_o by_o put_v they_o into_o a_o preternatural_a motion_n they_o be_v the_o cause_n of_o such_o sensation_n and_o that_o those_o sensation_n only_o proceed_v from_o thence_o we_o may_v easy_o conceive_v for_o since_o as_o long_o as_o those_o humour_n circulate_a with_o the_o mass_n of_o blood_n and_o forcible_o meet_v with_o the_o animal_n spirit_n they_o can_v only_o affect_v they_o by_o move_v among_o they_o they_o must_v needs_o put_v they_o into_o a_o more_o swift_a motion_n and_o a_o unusual_a expansion_n by_o corrode_a and_o grind_v they_o more_o powerful_o betwixt_o their_o particle_n which_o be_v evident_a from_o the_o cause_n of_o those_o flush_a heat_n i_o just_o now_o mention_v and_o from_o the_o reason_n i_o have_v before_o give_v of_o heat_n but_o that_o the_o sharp_a the_o mass_n of_o blood_n be_v the_o more_o the_o animal_n spirit_n be_v ground_n and_o expanded_a betwixt_o the_o particle_n of_o it_o be_v evident_a from_o reason_n itself_o for_o it_o be_v prove_v before_o that_o the_o heat_n of_o the_o blood_n proceed_v from_o a_o swift_a intestine_a motion_n of_o the_o particle_n of_o the_o blood_n and_o spirit_n cause_v by_o attrition_n nothing_o be_v more_o reasonable_a than_o that_o the_o more_o solid_a the_o mass_n of_o blood_n be_v the_o strong_a the_o attrition_n be_v and_o consequent_o the_o motion_n of_o particle_n which_o upon_o our_o sensory_a cause_n heat_n must_v be_v more_o violent_a and_o as_o in_o strike_v of_o a_o flint_n with_o a_o piece_n of_o steel_n the_o more_o firm_a and_o hard_o the_o steel_n be_v the_o more_o powerful_o it_o loosn_v the_o texture_n of_o the_o flint_n and_o strong_o expand_v its_o sulphureous_a particle_n put_v they_o into_o that_o motion_n which_o constitute_v flame_n so_o by_o parity_n of_o reason_n we_o may_v expect_v that_o the_o particle_n of_o blood_n will_v cause_v the_o sulphureous_a volatile_a part_n of_o the_o spirit_n to_o expand_v more_o powerful_o the_o more_o solid_a and_o compact_a they_o be_v and_o that_o the_o texture_n and_o constitution_n of_o saline_n humour_n be_v more_o solid_a and_o their_o part_n more_o corrode_a than_o of_o a_o sweet_a balsamic_a liquor_n i_o think_v none_o can_v deny_v who_o compare_v vinegar_n and_o spirit_n of_o vitriol_n with_o tincture_n of_o sulphur_n and_o although_o in_o fever_n where_o the_o blood_n abound_v with_o too_o much_o exalt_v sulphur_n spirit_n of_o vitriol_n and_o other_o acid_n cool_v the_o blood_n by_o fix_v the_o spirit_n and_o coagulate_v the_o sulphur_n yet_o when_o the_o blood_n be_v impregnate_v with_o scorbutic_a salt_n acidity_n join_v with_o acrimony_n cause_n heat_v by_o corrode_a the_o spirit_n when_o they_o want_v a_o mixture_n of_o crude_a sulphur_n to_o dull_v their_o edge_n of_o which_o it_o will_v be_v no_o difficulty_n to_o convince_v those_o that_o be_v considerable_o trouble_v with_o scorbutic_a symptom_n but_o furthermore_o i_o shall_v prove_v that_o the_o mass_n of_o blood_n the_o more_o prove_v it_o abound_v with_o volatile_a salt_n and_o sulphur_n be_v more_o easy_o put_v into_o a_o violent_a heat_n and_o that_o its_o particle_n be_v more_o easy_o put_v into_o motion_n ready_o join_v with_o the_o animal_n spirit_n and_o increase_v they_o and_o that_o on_o the_o contrary_a the_o more_o dull_a and_o phlegmatic_a any_o body_n be_v the_o less_o apt_a be_v its_o particle_n to_o be_v put_v in_o motion_n and_o as_o it_o be_v common_o take_v notice_n of_o in_o all_o body_n so_o it_o be_v not_o less_o observable_a in_o the_o mass_n of_o blood_n for_o we_o always_o find_v that_o the_o least_o quantity_n of_o any_o volatile_a liquor_n
the_o heart_n and_o from_o the_o heart_n to_o the_o extremity_n of_o the_o vessel_n again_o be_v very_o short_a before_o there_o can_v be_v any_o sensible_a or_o considerable_a decay_n of_o it_o the_o blood_n be_v anew_o ferment_v in_o the_o gland_n and_o so_o by_o a_o continual_a circulation_n the_o heat_n of_o the_o blood_n be_v preserve_v and_o because_o by_o this_o time_n the_o animal_n spirit_n mix_v in_o the_o first_o fermentation_n with_o the_o blood_n be_v almost_o spend_v be_v incorporate_v with_o it_o and_o because_o part_v of_o it_o be_v continual_o separate_v in_o the_o brain_n it_o meet_v a_o second_o time_n with_o new_a supply_n and_o also_o by_o repeat_v fermentation_n be_v more_o impregnate_v with_o spirit_n as_o well_o as_o digest_v and_o ripen_v to_o a_o high_a degree_n of_o maturity_n thus_o i_o have_v give_v a_o account_n how_o the_o heat_n of_o the_o blood_n be_v carry_v on_o in_o the_o vessel_n that_o it_o may_v more_o clear_o appear_v how_o the_o original_a cause_n of_o heat_n be_v principal_o in_o the_o gland_n that_o the_o animal_n spirit_n be_v put_v into_o a_o elastic_a prove_v motion_n in_o the_o gland_n i_o have_v before_o prove_v by_o the_o grosser_n particle_n of_o the_o blood_n and_o that_o the_o blood_n so_o ferment_v be_v successive_o cast_v out_o into_o the_o vein_n be_v plain_a enough_o to_o any_o one_o that_o do_v but_o understand_v circulation_n to_o prove_v then_o that_o the_o blood_n be_v thrust_v out_o of_o the_o gland_n do_v by_o a_o further_a expansion_n of_o those_o spirit_n for_o a_o while_n increase_v the_o fermentation_n and_o that_o when_o the_o vigour_n of_o the_o spirit_n be_v spend_v it_o will_v gradual_o decay_v we_o need_v but_o take_v notice_n how_o fermentation_n be_v begin_v and_o carry_v on_o in_o other_o liquor_n for_o when_o oil_n of_o vitriol_n and_o spirit_n of_o ammoniac_a salt_n be_v mix_v together_o the_o part_n of_o each_o be_v in_o some_o measure_n mix_v and_o put_v into_o motion_n by_o drop_v the_o one_o into_o the_o other_o they_o present_o begin_v to_o ferment_n which_o fermentation_n be_v gradual_o exalt_v till_o by_o a_o frequent_a collision_n and_o attrition_n the_o most_o fermentative_a part_n fly_v away_o or_o their_o vigour_n be_v lose_v and_o then_o fermentation_n gradual_o decrease_v and_o in_o like_a manner_n all_o other_o liquor_n that_o for_o a_o time_n ferment_n with_o a_o sensible_a heat_n but_o if_o possible_a it_o will_v further_o appear_v that_o the_o original_a &_o principal_a cause_n of_o fermentation_n be_v in_o the_o gland_n if_o we_o do_v but_o consider_v how_o fermentation_n be_v carry_v on_o in_o a_o die_a body_n for_o in_o a_o body_n that_o be_v about_o to_o die_v the_o vigour_n as_o well_o as_o dead_a quantity_n of_o animal_n spirit_n be_v diminish_v and_o those_o too_o be_v less_o vigorous_o ground_n betwixt_o the_o part_n of_o the_o arterial_a blood_n expand_v so_o weak_o that_o they_o scarce_o agitate_v the_o mass_n of_o blood_n sufficient_o to_o preserve_v its_o heat_n but_o as_o soon_o as_o the_o blood_n and_o spirit_n cease_v to_o circulate_v the_o heat_n of_o the_o blood_n present_o grow_v mild_a till_o at_o last_o it_o be_v quite_o extinguish_v now_o if_o when_o the_o fermentation_n be_v weak_a the_o heat_n of_o the_o blood_n be_v more_o remiss_a and_o depress_v and_o when_o circulation_n be_v stop_v it_o consequent_o cease_v it_o must_v needs_o follow_v that_o the_o animal_n spirit_n be_v the_o cause_n of_o that_o fermentation_n and_o that_o it_o be_v promote_v by_o drive_v those_o two_o liquor_n forcible_o together_o and_o that_o the_o fermentation_n be_v chief_o cause_v in_o the_o gland_n be_v plain_a because_o when_o the_o spirit_n and_o blood_n cease_v to_o be_v drive_v together_o and_o there_o ferment_v the_o heat_n of_o the_o blood_n decrease_v and_o that_o it_o be_v not_o in_o the_o vessel_n be_v evident_a because_o after_o circulation_n be_v stop_v it_o present_o decline_v whereas_o if_o it_o be_v cause_v in_o the_o vessel_n it_o will_v continue_v after_o death_n as_o well_o as_o before_o since_o it_o than_o have_v the_o same_o matter_n though_o it_o want_v circulation_n and_o a_o forcible_a mixture_n and_o what_o i_o have_v show_v to_o be_v the_o consequence_n of_o it_o i_o shall_v only_o bring_v one_o argument_n more_o to_o prove_v that_o the_o attrition_n heat_n of_o the_o blood_n depend_v upon_o the_o attrition_n and_o fermentation_n in_o the_o glandule_n which_o may_v be_v infer_v from_o this_o common_a observation_n that_o the_o heat_n of_o the_o blood_n be_v increase_v by_o all_o violent_a motion_n for_o upon_o all_o violent_a motion_n a_o large_a quantity_n of_o animal_n spirit_n be_v send_v to_o the_o part_n to_o be_v move_v in_o order_n to_o prepare_v a_o great_a quantity_n of_o subtle_a liquor_n to_o distend_a and_o dilate_v the_o fibre_n the_o fermentation_n be_v not_o only_o raise_v high_a in_o the_o glandule_n but_o the_o motion_n of_o the_o heart_n be_v thus_o accidental_o increase_v quicken_v the_o circulation_n of_o the_o blood_n so_o much_o that_o before_o the_o vigorous_a motion_n of_o its_o part_n which_o be_v raise_v in_o the_o precedent_a fermentation_n be_v spend_v it_o be_v again_o renew_a but_o the_o circulation_n of_o the_o blood_n be_v not_o only_o quicken_v by_o the_o contraction_n of_o the_o heart_n but_o also_o by_o the_o frequent_o repeat_v contraction_n of_o the_o muscle_n for_o the_o heart_n contract_v send_v it_o out_o into_o the_o musculous_a part_n and_o again_o those_o muscle_n drive_v it_o soon_o and_o more_o forcible_o back_o upon_o the_o heart_n from_o whence_o it_o appear_v that_o both_o the_o heat_n of_o the_o blood_n be_v increase_v by_o be_v often_o ferment_v in_o those_o glandule_n and_o consequent_o that_o it_o depend_v on_o the_o mixture_n and_o fermentation_n of_o the_o animal_n spirit_n and_o arterial_a blood_n from_o hence_o it_o be_v manifest_a how_o far_o circulation_n be_v beneficial_a another_o in_o carry_v on_o the_o heat_n of_o the_o blood_n and_o if_o we_o consider_v the_o reason_n which_o i_o have_v give_v of_o muscular_a motion_n we_o shall_v see_v that_o as_o fermentation_n depend_v on_o muscular_a motion_n so_o muscular_a motion_n depend_v on_o fermentation_n so_o that_o as_o i_o say_v before_o there_o be_v a_o continual_a chain_n and_o circulation_n of_o cause_n as_o well_o as_o humour_n in_o a_o man_n body_n to_o proceed_v therefore_o to_o the_o second_o objection_n i_o suppose_v some_o admit_v may_v raise_v viz._n whether_o this_o fermentation_n can_v be_v carry_v on_o in_o so_o short_a a_o time_n as_o a_o continual_a and_o quick_a circulation_n will_v admit_v this_o do_v not_o only_o appear_v possible_a from_o evident_a matter_n of_o fact_n but_o also_o if_o we_o consider_v that_o in_o much_o less_o time_n than_o what_o be_v allow_v for_o fermentation_n in_o the_o glandule_n if_o a_o spark_n of_o fire_n be_v put_v to_o gunpowder_n it_o immediate_o put_v its_o part_n into_o a_o explosion_n and_o that_o the_o blood_n not_o only_a ferment_n in_o so_o short_a a_o time_n but_o that_o it_o may_v prepare_v that_o subtle_a matter_n which_o circulate_v through_o the_o muscular_a fibres_fw-fr we_o may_v with_o a_o great_a deal_n of_o reason_n believe_v if_o we_o do_v but_o take_v notice_n that_o warm_a milk_n if_o it_o be_v but_o forcible_o milk_v into_o vinegar_n it_o present_o be_v separate_v into_o two_o part_n viz._n curd_n and_o whey_n if_o then_o by_o mix_v these_o two_o liquor_n they_o cause_v so_o great_a a_o change_n on_o one_o another_o i_o can_v conceive_v any_o reason_n why_o part_n of_o the_o animal_n spirit_n ferment_v with_o the_o blood_n may_v not_o as_o soon_o be_v mix_v with_o some_o part_n of_o the_o rarefy_v succus_fw-la nutritius_n and_o force_v forward_o into_o the_o fibre_n but_o from_o what_o i_o have_v say_v it_o appear_v that_o beside_o the_o heat_n of_o the_o blood_n be_v cause_v in_o the_o glandule_n by_o fermentation_n and_o how_o it_o be_v continue_v in_o the_o musculous_a part_n i_o shall_v in_o the_o next_o place_n consider_v in_o what_o part_v it_o be_v most_o vigorous_o ferment_v which_o will_v appear_v only_o by_o consider_v where_o the_o spirit_n be_v most_o plentiful_o lay_v down_o for_o if_o fermentation_n depend_v on_o and_o be_v chief_o cause_v by_o the_o animal_n spirit_n as_o i_o have_v show_v then_o it_o must_v needs_o follow_v that_o the_o heat_n of_o the_o blood_n be_v most_o promote_v in_o those_o part_n where_o animal_n spirit_n be_v most_o predominant_a and_o have_v prove_v that_o in_o order_n to_o prepare_v that_o subtle_a liquor_n which_o cause_v contraction_n of_o the_o muscle_n a_o great_a quantity_n of_o animal_n spirit_n be_v send_v there_o it_o will_v follow_v that_o the_o blood_n grow_v hot_a be_v most_o vigorous_o ferment_v in_o those_o part_n that_o be_v in_o motion_n and_o
than_o it_o will_v follow_v that_o the_o heart_n be_v a_o part_n in_o constant_a motion_n and_o that_o motion_n proceed_v from_o a_o successive_a supply_n of_o spirit_n the_o blood_n must_v needs_o acquire_v the_o most_o considerable_a degree_n of_o heat_n in_o the_o substance_n of_o it_o but_o although_o i_o say_v that_o the_o blood_n for_o these_o reason_n acquire_v a_o great_a heat_n in_o the_o heart_n then_o in_o any_o other_o part_n i_o will_v not_o be_v think_v to_o mean_v that_o it_o grow_v hot_a so_o in_o the_o ventricles_n of_o the_o heart_n for_o the_o use_n of_o the_o heart_n be_v only_o to_o force_v the_o blood_n out_o of_o it_o and_o by_o dilate_v to_o receive_v it_o in_o again_o for_o another_o expulsion_n and_o so_o to_o keep_v it_o in_o circulation_n it_o can_v get_v no_o great_a heat_n there_o since_o it_o want_v spirit_n to_o ferment_n with_o it_o but_o i_o only_o mean_v that_o consider_v the_o substance_n and_o dimension_n of_o the_o muscular_a part_n of_o the_o heart_n and_o that_o small_a portion_n of_o blood_n contain_v in_o the_o artery_n disperse_v through_o it_o that_o that_o blood_n acquire_v a_o great_a heat_n than_o that_o quantity_n of_o blood_n do_v in_o another_o part_n that_o be_v not_o in_o motion_n but_o there_o be_v beside_o muscular_a part_n many_o bowel_n considerable_a internal_a part_n in_o a_o man_n body_n in_o which_o a_o great_a number_n of_o blood_n vessel_n be_v distribute_v it_o perhaps_o will_v be_v ask_v whether_o fermentation_n be_v carry_v on_o in_o these_o too_o to_o which_o i_o answer_v that_o animal_n spirit_n and_o arterial_a blood_n be_v either_o mediate_o or_o immediate_o lay_v down_o in_o they_o all_o there_o must_v needs_o be_v a_o fermentation_n which_o be_v prove_v upon_o such_o premise_n by_o what_o i_o have_v already_o say_v there_o be_v no_o need_n i_o shall_v repeat_v it_o again_o but_o since_o anatomist_n have_v not_o as_o yet_o discover_v nerve_n to_o be_v distribute_v through_o the_o liver_n although_o blood_n be_v communicate_v to_o it_o by_o the_o vena_fw-la porta_n which_o supply_v the_o office_n of_o a_o artery_n to_o the_o liver_n it_o perhaps_o may_v be_v doubt_v whether_o fermentation_n be_v carry_v on_o after_o the_o same_o manner_n there_o and_o consequent_o whether_o the_o office_n of_o the_o liver_n be_v perform_v by_o fermentation_n or_o not_o that_o it_o be_v i_o shall_v show_v hereafter_o and_o also_o how_o the_o gland_n in_o that_o part_n be_v supply_v with_o spirit_n from_o what_o i_o have_v hitherto_o say_v it_o appear_v what_o be_v necessary_a to_o continue_v the_o heat_n of_o the_o blood_n and_o also_o what_o be_v the_o cause_n of_o it_o for_o first_o it_o be_v necessary_a that_o the_o animal_n spirit_n and_o blood_n blood_n shall_v be_v in_o a_o continual_a circulation_n that_o be_v forcible_o drive_v together_o their_o particle_n may_v be_v intimare_o mix_v one_o with_o another_o and_o second_o that_o the_o animal_n spirit_n shall_v be_v ground_n betwixt_o the_o part_n of_o the_o mass_n of_o blood_n that_o they_o may_v be_v thereby_o rarify_v and_o expanded_a and_o their_o particle_n put_v into_o a_o swift_a motion_n and_o three_o it_o be_v requisite_a that_o the_o animal_n spirit_n shall_v be_v of_o a_o oily_a sulphureous_a volatile_a temper_n that_o be_v more_o easy_o rarify_v and_o expanded_a they_o may_v be_v present_o put_v into_o motion_n and_o cause_v the_o whole_a mass_n to_o ferment_n have_v then_o explain_v the_o heat_n of_o the_o blood_n and_o prove_v it_o agreeable_a to_o these_o circumstance_n i_o be_o for_o the_o reason_n before_o mention_v persuade_v to_o believe_v that_o the_o heat_n of_o the_o blood_n thus_o proceed_v from_o fermentation_n of_o the_o use_n of_o the_o lung_n for_o as_o much_o as_o appear_v from_o the_o book_n of_o several_a learned_a man_n the_o use_v of_o the_o lung_n have_v not_o be_v hitherto_o indisputable_a no_o more_o than_o the_o use_v of_o other_o part_n for_o as_o there_o be_v several_a opinion_n concern_v other_o so_o there_o be_v no_o less_o dispute_n about_o this_o whilst_o some_o will_v have_v it_o to_o be_v only_o a_o sort_n of_o fan_n to_o cool_v and_o air_n the_o blood_n and_o other_o that_o it_o be_v design_v to_o kindle_v and_o put_v the_o blood_n into_o a_o flame_n by_o continual_o supply_v it_o with_o nitre_n whether_o of_o these_o be_v most_o probable_a may_v easy_o be_v gather_v by_o consider_v the_o effect_n that_o air_n have_v upon_o we_o for_o since_o the_o air_n be_v continual_o draw_v in_o and_o thrust_v out_o again_o in_o respiration_n any_o one_o that_o do_v but_o know_v what_o effect_n it_o have_v upon_o himself_o can_v be_v ignorant_a of_o the_o use_n of_o the_o lung_n in_o respect_n of_o the_o heat_n of_o the_o blood_n evident_o find_v himself_o cool_v by_o it_o and_o if_o any_o one_o that_o by_o daily_a experience_n find_v that_o it_o cool_v he_o can_v conclude_v thence_o that_o it_o kindle_v and_o promote_v the_o heat_n of_o the_o blood_n he_o may_v be_v please_v with_o his_o notion_n but_o no_o body_n else_o will_v with_o such_o as_o contradict_v self-evident_a truth_n but_o that_o it_o may_v appear_v how_o far_o the_o lung_n may_v be_v say_v to_o be_v a_o fan_n or_o ventilabrum_fw-la to_o the_o blood_n and_o whether_o the_o air_n promote_v the_o heat_n of_o it_o or_o not_o i_o shall_v take_v this_o method_n first_o consider_v the_o use_n of_o the_o lung_n with_o respect_n to_o the_o rational_a soul_n and_o second_o with_o respect_n to_o the_o body_n the_o use_n of_o the_o lung_n with_o a_o more_o immediate_a respect_n to_o soul_n the_o soul_n appear_v to_o be_v nothing_o else_o but_o as_o a_o large_a capacious_a vessel_n endue_v with_o a_o cavity_n to_o contain_v a_o great_a quantity_n of_o air_n so_o that_o it_o perform_v the_o same_o office_n in_o the_o body_n as_o a_o pair_n of_o bellows_o to_o organ_n for_o as_o in_o organ_n the_o bellows_o supply_v pipe_n of_o different_a size_n with_o air_n and_o that_o be_v drive_v through_o they_o produces_z different_z sounds_z so_o the_o lung_n dilate_v and_o extend_v by_o the_o motion_n of_o the_o thorax_n and_o be_v full_a of_o air_n contract_n and_o according_o as_o the_o pharinx_n and_o its_o part_n be_v different_o modulate_v so_o the_o air_n forcible_o drive_v through_o they_o cause_v different_a voice_n in_o which_o action_n the_o lung_n seem_v chief_o to_o be_v a_o organ_n reason_v make_v on_o purpose_n to_o be_v serviceable_a to_o the_o rational_a soul_n to_o express_v all_o its_o conception_n and_o reason_n and_o to_o form_v voice_n or_o articulate_v sound_n to_o signify_v those_o notion_n contain_v in_o and_o apprehend_v by_o it_o that_o those_o thing_n which_o must_v otherwise_o remain_v in_o silence_n may_v be_v communicate_v to_o promote_v a_o mutual_a commerce_n and_o conversation_n among_o men._n but_o here_o some_o may_v ask_v if_o it_o be_v chief_o design_v to_o form_n articulate_v sound_n as_o it_o real_o seem_v to_o be_v why_o do_v we_o take_v our_o breath_n continual_o or_o why_o be_v our_o spirit_n constant_o consume_v by_o keep_v the_o part_n in_o a_o perpetual_a motion_n since_o sometime_o we_o use_v it_o very_o little_a for_o a_o long_a time_n to_o express_v any_o thing_n by_o one_o half_a of_o our_o life_n and_o the_o large_a too_o be_v pass_v away_o in_o silence_n to_o which_o it_o may_v be_v answer_v that_o it_o be_v necessary_a the_o lung_n because_o shall_v be_v in_o a_o constant_a and_o continual_a motion_n that_o they_o may_v be_v keep_v in_o readiness_n to_o express_v what_o and_o whenever_o we_o have_v a_o mind_n another_o reason_n be_v that_o since_o the_o cavity_n of_o the_o lung_n be_v they_o constant_o supply_v with_o a_o serous_a lympha_fw-la to_o moisten_v their_o coat_n and_o to_o moderate_v the_o acrimony_n of_o the_o air_n it_o be_v necessary_a there_o shall_v be_v a_o constant_a and_o continual_a respiration_n to_o carry_v that_o serous_a lympha_fw-la off_z which_o will_v otherwise_o stuff_v 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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 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a_o treatise_n concern_v the_o heat_n of_o the_o blood_n and_o also_o of_o the_o use_n of_o the_o lung_n by_o richard_n boulton_n of_o brazen-nose_n college_n in_o oxford_n london_n print_v for_o a._n and_o j._n churchill_n at_o the_o black_a swan_n in_o pater-noster-row_n 1698._o imprimatur_fw-la jo._n mere_a vice-can_a oxon._n jan._n 24._o 1697._o hunc_fw-la librum_fw-la cui_fw-la titulus_fw-la a_o treatise_n of_o the_o heat_n of_o the_o blood_n etc._n etc._n dignum_fw-la censemus_fw-la quî_fw-la imprimatur_fw-la thomas_n millington_n praeses_fw-la samuel_n collins_n edward_n hulse_n richard_n morton_n charles_n goodall_n censor_n martij_fw-la 5._o 1697_o 8._o to_o the_o reverend_a dr._n jo._n mere_a principal_n of_o brazen-nose_n college_n and_o vicechancellor_n of_o the_o university_n of_o oxford_n sir_n it_o be_v not_o any_o great_a opinion_n i_o have_v of_o my_o present_a performance_n though_o there_o be_v some_o who_o will_v persuade_v i_o that_o it_o be_v not_o altogether_o 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in_o a_o university_n and_o a_o great_a many_o more_o improve_v in_o successful_a and_o judicious_a practice_n have_v sufficient_o qualify_v you_o for_o a_o judge_n and_o patron_n when_o i_o consider_v the_o former_a and_o withal_o my_o own_o weakness_n i_o confess_v i_o have_v less_o reason_n to_o desire_v the_o latter_a but_o sinoe_v it_o usual_o happen_v that_o those_o that_o be_v least_o subject_n to_o fault_n be_v common_o candid_a critic_n and_o most_o ready_a to_o forgive_v other_o i_o be_o bold_a to_o beg_v your_o patronage_n yet_o not_o for_o its_o fault_n since_o that_o be_v below_o your_o judgement_n but_o whatever_o truth_n be_v contain_v in_o it_o which_o will_v scarce_o be_v deny_v by_o one_o that_o be_v so_o much_o a_o encourager_n of_o learning_n but_o perhaps_o i_o ought_v to_o make_v a_o apology_n to_o you_o as_o well_o as_o the_o world_n for_o deviate_a from_o the_o opinion_n of_o some_o learned_a man_n especiat_o of_o that_o never_o too_o much_o honour_v dr._n willis_n who_o be_v one_o of_o the_o great_a physician_n of_o his_o and_o precede_a age_n and_o true_o all_o that_o i_o can_v say_v for_o myself_o be_v that_o as_o it_o will_v be_v below_o the_o character_n of_o so_o great_a a_o man_n to_o write_v any_o thing_n upon_o any_o other_o consideration_n than_o a_o improvement_n of_o knowledge_n and_o truth_n so_o undoubted_o he_o will_v not_o desire_v any_o thing_n he_o write_v shall_v be_v believe_v except_o it_o seem_v so_o that_o than_o which_o i_o hope_v will_v be_v a_o apology_n for_o such_o a_o attempt_n be_v that_o i_o have_v consider_v his_o opinion_n with_o no_o other_o design_n than_o a_o endeavour_n after_o truth_n and_o have_v offer_v nothing_o against_o his_o opinion_n but_o plain_a and_o unprejudiced_a reason_n and_o though_o i_o have_v give_v reason_n enough_o to_o prove_v he_o be_v mistake_v in_o this_o point_n yet_o i_o must_v ever_o have_v the_o great_a veneration_n and_o esteem_n for_o all_o such_o man_n of_o 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you_o have_v be_v please_v to_o take_v i_o into_o your_o favour_n and_o also_o that_o you_o will_v pardon_v i_o for_o take_v this_o liberty_n since_o it_o be_v only_o design_v to_o testify_v my_o gratitude_n for_o those_o favour_n you_o have_v already_o be_v please_v to_o confer_v on_o your_o very_a humble_a and_o oblige_a servant_n r._n boulton_n the_o content_n the_o introduction_n page_z 1_o our_o knowledge_n be_v very_o short_a ibid._n and_o imperfect_a p._n 3_o the_o pursuit_n of_o knowledge_n very_o desirable_a p._n 4_o where_o most_o easy_o attain_v p._n 5_o the_o heat_n of_o the_o blood_n not_o obscure_a in_o respect_n of_o its_o cause_n p._n 6_o the_o opinion_n of_o the_o ancient_n very_o superficial_a p._n 9_o dr._n willis_n opinion_n answer_v p._n 11_o but_o one_o way_n by_o which_o body_n grow_v hot_a p._n 13_o fire_n be_v rarify_v matter_n in_o motion_n p._n 16_o heat_v not_o actual_o in_o the_o body_n that_o cause_v it_o p._n 19_o heat_v only_o a_o sensation_n p._n 20_o 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increase_v the_o force_n of_o it_o and_o for_o this_o reason_n a_o gun_n which_o be_v charge_v with_o a_o great_a weight_n of_o shot_n more_o forcible_o recoil_v the_o powder_n not_o find_v free_a liberty_n to_o expand_v but_o fly_v backward_o with_o a_o great_a force_n it_o be_v also_o further_o evident_a from_o the_o reason_n which_o i_o have_v give_v why_o nitre_n be_v beneficial-in_a continue_a flame_n and_o make_v it_o more_o vigorous_a the_o gross_a part_n of_o the_o blood_n have_v thus_o put_v blood_n the_o animal_n spirit_n into_o a_o swift_a motion_n and_o by_o invert_v they_o in_o their_o motion_n have_v cause_v they_o to_o increase_v one_o another_o motion_n the_o spirit_n at_o last_o set_v upon_o the_o mass_n of_o blood_n and_o by_o break_v and_o dissolve_v the_o particle_n of_o it_o rarify_v they_o and_o cause_v they_o to_o expand_v also_o so_o the_o ray_n of_o the_o sun_n be_v in_o a_o swift_a motion_n and_o gather_v into_o a_o point_n by_o a_o burn_a glass_n grow_v more_o vigorous_a so_o as_o to_o dissolve_v and_o burn_v even_o solid_a body_n and_o after_o the_o like_a manner_n flame_n by_o the_o force_n of_o it_o subtilize_v and_o attenuate_v the_o sulphureous_a part_n of_o its_o fuel_n neither_o do_v it_o only_o rarify_v and_o expand_v the_o sulphureous_a matter_n of_o its_o fuel_n but_o also_o carry_v violent_o the_o ash_n of_o the_o calcine_v matter_n along_o with_o it_o where_o it_o may_v be_v observe_v that_o as_o the_o particle_n of_o animal_n spirit_n be_v not_o in_o so_o strong_a a_o motion_n as_o those_o of_o fire_n so_o the_o particle_n of_o the_o blood_n be_v move_v with_o a_o more_o easy_a force_n than_o ash_n which_o be_v far_o more_o solid_a but_o for_o a_o further_a proof_n that_o the_o mass_n of_o blood_n grow_v hot_a in_o a_o prove_v natural_a state_n by_o the_o method_n and_o way_n which_o i_o have_v endeavour_v to_o explain_v i_o shall_v in_o the_o next_o place_n prove_v that_o the_o animal_n spirit_n be_v put_v into_o motion_n according_a to_o their_o different_a quantity_n different_o expand_v themselves_o and_o exagitate_v the_o mass_n of_o blood_n and_o put_v its_o part_n in_o a_o more_o violent_a or_o weak_a motion_n and_o consequent_o increase_v or_o diminish_v the_o heat_n of_o it_o and_o this_o be_v easy_o manifest_a if_o we_o do_v but_o observe_v that_o young_a age_n &_o healthful_a people_n who_o nerve_n as_o well_o as_o the_o fountain_n from_o whence_o they_o spring_v be_v full_a of_o and_o abound_v with_o spirit_n be_v always_o of_o a_o more_o brisk_a and_o vigorous_a heat_n then_o people_n of_o a_o decline_a age_n who_o nerve_n be_v less_o plentiful_o stock_v with_o they_o but_o it_o be_v not_o only_o observable_a in_o people_n of_o different_a constitution_n age_n but_o also_o in_o different_a constitution_n that_o as_o the_o pabulum_fw-la of_o the_o animal_n spirit_n be_v more_o plentiful_a and_o yield_v a_o more_o constant_a and_o large_a supply_n so_o the_o heat_n of_o the_o blood_n be_v more_o powerful_a and_o intense_a as_o in_o cold_a and_o phlegmatic_a constitution_n where_o the_o mass_n of_o blood_n abound_v with_o dull_a phlegmatic_a humour_n or_o acid_n and_o austere_a juice_n of_o too_o close_a and_o compact_a texture_n and_o a_o large_a supply_n of_o spirit_n be_v deny_v the_o blood_n be_v not_o of_o so_o hot_a a_o temper_n as_o in_o choleric_a constitution_n whence_o it_o evident_o appear_v that_o the_o heat_n of_o the_o blood_n depend_v on_o the_o vigour_n of_o the_o animal_n spirit_n for_o if_o when_o the_o vessel_n be_v fill_v with_o spirit_n and_o plentiful_o supply_v the_o gland_n that_o fermentation_n be_v raise_v high_o and_o by_o that_o mean_v the_o heat_n of_o the_o blood_n be_v according_o increase_v it_o be_v a_o most_o certain_a conclusion_n that_o the_o heat_n of_o the_o blood_n depend_v upon_o the_o effect_n that_o the_o animal_n spirit_n have_v in_o that_o fermentation_n which_o be_v further_o confirm_v by_o the_o common_a physic_n and_o constant_a practice_n of_o all_o physician_n for_o when_o the_o natural_a heat_n as_o some_o call_v it_o be_v languid_a and_o weak_a and_o almost_o extinguish_v they_o give_v such_o medicine_n as_o increase_v the_o heat_n of_o the_o blood_n by_o renew_v the_o vigour_n of_o the_o spirit_n whence_o to_o people_n that_o be_v almost_o a_o die_a their_o spirit_n be_v dull_v or_o exhaust_v nothing_o be_v more_o usual_a then_o to_o give_v they_o spirit_n of_o hartshorn_n pulse_n or_o of_o armonick-salt_n or_o some_o other_o saline_n or_o sulphureous_a spirit_n which_o present_o join_v with_o those_o in_o the_o nerve_n increase_v the_o fermentation_n in_o the_o gland_n and_o by_o that_o mean_v put_v the_o mass_n of_o blood_n into_o a_o more_o swift_a exagitation_n and_o by_o raise_v the_o fermentation_n not_o only_o renew_v circulation_n but_o the_o heat_n of_o the_o blood_n on_o the_o contrary_a when_o the_o
inflame_v the_o blood_n of_o those_o that_o be_v of_o a_o tender_a and_o open_a constitution_n much_o soon_o than_o phlegmatic_a and_o melancholy_a peoples_n and_o as_o the_o former_a be_v evident_a in_o those_o that_o be_v subject_a to_o fever_n so_o the_o latter_a be_v not_o less_o remarkable_a in_o those_o of_o cold_a constitution_n for_o to_o increase_v the_o natural_a heat_n of_o their_o blood_n when_o it_o be_v too_o much_o depress_v it_o be_v not_o only_o necessary_a to_o take_v away_o some_o of_o those_o crude_a humour_n which_o stuff_n up_o the_o vessel_n and_o too_o much_o depress_v the_o spirit_n but_o also_o by_o volatile_a and_o spirituous_a medicine_n to_o increase_v the_o spirit_n and_o at_o the_o same_o time_n to_o exalt_v and_o spiritualise_v the_o blood_n by_o absorb_v acid_n and_o exalt_v the_o volitile_o and_o subtle_a part_n to_o render_v they_o predominant_a moreover_o that_o the_o animal_n spirit_n do_v not_o only_o according_a spirit_n to_o their_o different_a quantity_n and_o the_o different_a state_n of_o the_o blood_n various_o exagitate_v and_o increase_v the_o heat_n of_o it_o but_o also_o according_a to_o their_o different_a degree_n of_o activity_n and_o strength_n be_v put_v beyond_o dispute_n by_o the_o different_a effect_n that_o spirit_n of_o wine_n or_o aqua-mirabilis_a have_v upon_o we_o from_o sack_n which_o any_o one_o that_o do_v but_o taste_n must_v soon_o acknowledge_v it_o remain_v in_o the_o next_o place_n that_o i_o shall_v passive_a show_v how_o far_o the_o animal_n spirit_n be_v active_a and_o how_o far_o passive_a in_o cause_v these_o effect_n as_o well_o as_o the_o blood_n which_o evident_o appear_v from_o what_o i_o have_v already_o say_v for_o when_o the_o spirit_n and_o blood_n be_v forcible_o drive_v together_o than_o they_o seem_v to_o be_v mutual_o active_a and_o passive_a the_o spirit_n be_v force_v betwixt_o the_o particle_n of_o the_o blood_n and_o vice_n versâ_fw-la but_o the_o animal_n spirit_n be_v ground_n and_o rarify_v betwixt_o the_o particle_n of_o the_o blood_n be_v so_o far_o passive_a but_o be_v by_o that_o mean_v expanded_a by_o a_o powerful_a expansive_a and_o elastic_a motion_n exagitate_v the_o mass_n of_o blood_n and_o by_o that_o mean_n be_v active_a so_o that_o throughout_o the_o whole_a process_n it_o appear_v that_o neither_o of_o they_o single_o be_v altogether_o active_a or_o passive_a but_o both_o mutual_o and_o by_o turn_n from_o what_o i_o have_v say_v it_o appear_v how_o the_o continue_v heat_n of_o the_o blood_n be_v cause_v i_o shall_v in_o the_o next_o place_n proceed_v to_o show_v how_o it_o be_v continue_v which_o will_v be_v sufficient_o evident_a if_o we_o do_v but_o consider_v that_o the_o animal_n humour_n be_v in_o a_o constant_a and_o continual_a circulation_n for_o since_o all_o the_o blood_n in_o a_o man_n body_n be_v allow_v to_o circulate_v through_o the_o heart_n several_a time_n in_o a_o hour_n and_o that_o the_o blood_n from_o thence_o be_v continual_o force_v and_o disperse_v through_o the_o part_n of_o the_o body_n and_o so_o great_a a_o quantity_n of_o blood_n be_v at_o one_o pulsation_n lay_v down_o in_o the_o whole_a habit_n of_o the_o body_n and_o ferment_n at_o the_o same_o time_n with_o the_o animal_n spirit_n there_o must_v needs_o be_v raise_v in_o the_o blood_n a_o considerable_a heat_n or_o in_o other_o word_n the_o part_n of_o the_o blood_n and_o spirit_n must_v of_o necessity_n be_v put_v into_o so_o swift_a and_o intense_a a_o degree_n of_o motion_n as_o to_o enable_v they_o to_o produce_v a_o extraordinary_a heat_n when_o they_o strike_v upon_o our_o sensory_a the_o whole_a mass_n then_o circulate_v thus_o through_o the_o extremity_n of_o the_o vessel_n there_o be_v not_o only_o a_o great_a deal_n of_o blood_n ferment_v every_o pulsation_n but_o also_o by_o a_o continual_a succession_n of_o pulsation_n the_o blood_n be_v force_v into_o a_o fermentation_n by_o the_o expansive_a motion_n of_o the_o spirit_n be_v by_o that_o mean_v preserve_v in_o a_o constant_a and_o continual_a heat_n but_o i_o know_v here_o will_v some_o difficulty_n offer_v themselves_o and_o answer_v perhaps_o some_o may_v doubt_v whether_o the_o blood_n only_a ferment_n in_o the_o extremity_n of_o the_o vessel_n and_o not_o in_o the_o vessel_n themselves_o and_o since_o it_o be_v hot_a in_o the_o artery_n before_o it_o be_v lay_v down_o in_o the_o gland_n as_o well_o as_o in_o the_o vein_n after_o fermentation_n they_o may_v think_v it_o reasonable_a to_o conclude_v that_o wherever_o it_o ferment_n there_o it_o be_v fermentation_n be_v cause_v and_o because_o there_o be_v a_o great_a deal_n of_o blood_n betwixt_o their_o extremity_n and_o the_o large_a vessel_n they_o may_v think_v that_o the_o fermentation_n in_o the_o extremity_n can_v be_v the_o cause_n of_o the_o heat_n of_o the_o blood_n in_o the_o large_a vessel_n it_o be_v a_o old_a maxim_n that_o tolle_fw-la causam_fw-la tollitur_fw-la effectus_fw-la which_o be_v as_o much_o as_o to_o say_v the_o cause_n immediateley_o go_v before_o the_o effect_n another_o doubt_n which_o perhaps_o may_v arise_v will_v be_v that_o since_o i_o affirm_v that_o there_o be_v such_o a_o mutual_a action_n and_o passion_n in_o the_o attrition_n of_o these_o humour_n in_o order_n to_o a_o fermentation_n whether_o fermentation_n can_v be_v carry_v on_o in_o such_o a_o manner_n in_o so_o short_a a_o time_n as_o the_o quick_a circulation_n and_o consequent_o protrusion_n of_o the_o blood_n from_o the_o extremity_n of_o the_o vessel_n admit_v as_o to_o the_o first_o to_o wit_n whether_o the_o fermentation_n of_o the_o vessel_n blood_n be_v cause_v in_o the_o extremity_n of_o the_o vessel_n or_o the_o large_a one_o i_o affirm_v that_o it_o be_v chief_o and_o original_o cause_v in_o the_o extremity_n of_o the_o vessel_n just_o where_o the_o nerve_n and_o artery_n meet_v and_o where_o their_o content_n be_v first_o mix_v together_o and_o that_o the_o fermentation_n in_o the_o large_a vessel_n be_v but_o a_o continuation_n of_o the_o effect_n of_o the_o same_o original_a cause_n and_o as_o when_o water_n be_v heat_v over_o a_o fire_n that_o part_n of_o the_o water_n which_o be_v at_o the_o top_n of_o the_o vessel_n that_o contain_v it_o be_v as_o true_o say_v to_o receive_v its_o heat_n from_o the_o fire_n as_o that_o in_o the_o bottom_n so_o that_o blood_n which_o be_v in_o the_o body_n of_o the_o vena_fw-la cava_fw-la be_v as_o real_o put_v into_o a_o fermentation_n by_o a_o mixture_n of_o spirit_n as_o that_o in_o the_o extremity_n for_o the_o animal_n spirit_n be_v mix_v with_o the_o arterial_a blood_n in_o the_o gland_n and_o ground_n betwixt_o their_o particle_n and_o be_v by_o that_o mean_v put_v into_o a_o elastic_a and_o expansive_a motion_n they_o powerful_o ferment_n and_o exagitate_v the_o whole_a mass_n this_o blood_n then_o so_o ferment_v be_v thrust_v out_o of_o the_o gland_n by_o a_o succession_n of_o matter_n force_v in_o the_o next_o pulsation_n and_o so_o forward_o by_o the_o next_o successive_o till_o it_o be_v drive_v into_o the_o vena_fw-la cava_fw-la now_o as_o soon_o as_o it_o be_v thrust_v out_o of_o the_o gland_n those_o spirit_n which_o do_v so_o powerful_o expand_v before_o and_o the_o remain_a part_n of_o they_o which_o be_v not_o mix_v with_o that_o subtle_a liquor_n that_o circulate_v through_o the_o fibre_n be_v yet_o further_o corrode_v and_o exagitated_a by_o pulsation_n still_o continue_v to_o expand_v themselves_o and_o by_o that_o mean_n keep_v the_o blood_n in_o a_o continual_a heat_n and_o the_o animal_n spirit_n be_v yet_o more_o expanded_a do_v not_o only_o continue_v but_o in_o a_o great_a measure_n increase_v the_o heat_n of_o it_o but_o these_o spirit_n be_v frequent_o oppose_v decay_v in_o their_o expansion_n by_o strike_v against_o the_o blood_n loose_a in_o a_o short_a time_n a_o great_a deal_n of_o their_o vigour_n the_o particle_n that_o before_o ground_fw-mi the_o animal_n spirit_n betwixt_o they_o obstruct_v their_o motion_n and_o the_o animal_n spirit_n not_o be_v able_a any_o long_o to_o keep_v they_o in_o a_o just_a motion_n sufficient_a to_o continue_v the_o heat_n which_o be_v natural_a to_o human_a blood_n they_o be_v as_o if_o it_o be_v link_v and_o fetter_v up_o betwixt_o those_o grosser_n part_n &_o be_v incorporate_v into_o one_o substance_n with_o they_o which_o be_v the_o reason_n that_o the_o blood_n by_o frequent_a circulation_n be_v ripen_v and_o digest_v and_o for_o this_o reason_n the_o flesh_n of_o a_o hare_n grow_v tender_a by_o be_v course_v along_o time_n the_o blood_n be_v thus_o impregnate_v with_o animal_n spirit_n and_o by_o that_o mean_n want_v spirit_n in_o a_o free_a and_o strong_a motion_n will_v by_o degree_n grow_v cold_a but_o the_o interval_n of_o time_n while_o the_o blood_n move_v from_o the_o extremity_n of_o the_o vessel_n to_o
except_o by_o hinder_v the_o fierce_a volatile_a part_n which_o ought_v to_o be_v dissipate_v from_o fly_v away_o through_o the_o pore_n of_o the_o skin_n which_o be_v increase_v thereby_o to_o too_o great_a a_o quantity_n exagitate_v the_o mass_n of_o blood_n too_o much_o from_o hence_o it_o brief_o yet_o plain_o appear_v that_o the_o nitre_n of_o the_o air_n alter_v the_o colour_n of_o the_o blood_n and_o also_o serve_v to_o temper_v the_o heat_n of_o it_o i_o shall_v now_o consider_v what_o effect_n it_o have_v upon_o the_o serous_a blood_n lympha_fw-la and_o if_o we_o may_v but_o compare_v it_o to_o milk_n which_o differ_v only_o from_o chyle_n by_o be_v less_o impregnate_v with_o oil_n it_o will_v be_v manifest_a that_o it_o precipitate_v the_o watery_a part_n of_o the_o serum_n which_o join_v with_o the_o fix_a salt_n of_o the_o blood_n dispose_v they_o to_o be_v separate_v and_o carry_v off_o by_o the_o urinary_a passage_n this_o be_v so_o strong_o prove_v both_o by_o non-naturals_a and_o medicine_n that_o to_o deny_v it_o will_v be_v to_o contradict_v reason_n and_o plead_v ignorance_n of_o those_o thing_n it_o be_v almost_o impossible_a for_o we_o not_o to_o take_v notice_n of_o for_o if_o we_o sit_v by_o a_o fire_n in_o a_o close_a warm_a room_n and_o drink_v a_o good_a quantity_n of_o beer_n which_o be_v not_o very_o strong_a it_o present_o if_o we_o go_v into_o the_o cold_a air_n run_v off_o by_o urinal_n beside_o nothing_o in_o medicine_n be_v a_o more_o know_v and_o common_a diuretic_n than_o sal._n prunel_n which_o be_v purify_v nitre_n concenter_v and_o condense_v and_o it_o be_v no_o less_o observable_a in_o a_o experimental_a observation_n of_o the_o famous_a dr._n lower_n who_o in_o his_o book_n de_fw-fr cord_n take_v notice_n that_o as_o much_o serum_n be_v precipitate_v in_o a_o short_a time_n after_o we_o rise_v from_o bed_n as_o in_o the_o whole_a night_n when_o we_o be_v less_o affect_v with_o the_o ambient_fw-la air._n how_o beneficial_a nitre_n be_v in_o precipitate_v the_o serum_n of_o the_o blood_n and_o what_o advantage_n the_o animal_n oeconomy_n receive_v thereby_o i_o shall_v not_o now_o inquire_v yet_o how_o inconsiderable_a a_o part_n of_o its_o office_n soever_o it_o may_v seem_v yet_o if_o it_o be_v due_o weigh_v it_o will_v appear_v very_o useful_a from_o what_o i_o have_v say_v concern_v the_o alteration_n make_v on_o the_o blood_n and_o it_o be_v serum_n i_o shall_v now_o proceed_v to_o consider_v how_o they_o influence_n each_o other_o but_o since_o as_o much_o as_o be_v sufficient_a for_o our_o present_a purpose_n may_v be_v gather_v from_o what_o have_v go_v before_o it_o be_v plain_a that_o the_o cool_a serum_n will_v help_v to_o temper_v the_o heat_n of_o the_o blood_n and_o vice_n versa_fw-la i_o shall_v wave_v a_o further_a notice_n of_o it_o here_o and_o shall_v rather_o show_v that_o the_o lung_n perform_v many_o more_o and_o considerable_a office_n in_o respect_n of_o each_o part_n but_o to_o explain_v they_o will_v not_o only_o be_v to_o treat_v of_o the_o lung_n but_o the_o whole_a body_n and_o the_o use_v of_o all_o the_o part_n which_o be_v not_o my_o present_a design_n i_o shall_v omit_v give_v a_o imperfect_a account_n of_o they_o because_o they_o be_v so_o interweave_v mutual_o with_o one_o another_o that_o they_o can_v true_o be_v understand_v without_o a_o account_n of_o the_o whole_a finis_fw-la our_o knowledge_n in_o philosophy_n be_v limit_v to_o a_o small_a part_n of_o the_o creation_n which_o be_v furnish_v with_o object_n too_o copious_a for_o our_o sense_n of_o which_o at_o the_o best_a we_o have_v but_o a_o imperfect_a knowledge_n the_o pursuit_n of_o knowledge_n very_o desirable_a especial_o of_o that_o which_o be_v most_o advantageous_a there_o be_v more_o reason_n to_o expect_v truth_n and_o certainty_n in_o the_o microcosm_n than_o the_o macrocosm_n where_o it_o be_v easy_o attain_v the_o heat_n of_o the_o blood_n not_o obscure_a in_o respect_n of_o its_o cause_n both_o ancient_n and_o modern_n have_v differ_v as_o to_o the_o cause_n of_o it_o the_o opinion_n of_o the_o ancient_n very_o superficial_a and_o insatisfactory_a dr._n willis_n '_o s_o opinion_n consider_v who_o assert_n that_o there_o be_v three_o way_n by_o which_o liquid_n grow_v hot_a and_o that_o the_o blood_n grow_v hot_a by_o accension_n to_o which_o it_o be_v answer_v that_o there_o be_v but_o one_o way_n in_o philosophy_n by_o which_o all_o thing_n grow_v hot_a several_a degree_n of_o heat_n differ_v only_o in_o degree_n of_o a_o peculiar_a power_n to_o cause_n heat_n and_o fire_n which_o be_v the_o high_a be_v rarify_v matter_n in_o a_o swift_a motion_n which_o mask_v in_o different_a subject_n affect_v not_o our_o sight_n heat_n be_v not_o actual_o in_o the_o body_n that_o cause_v it_o but_o potential_o because_o that_o body_n have_v a_o power_n to_o cause_v such_o a_o sensation_n heat_n be_v only_o a_o sensation_n which_o be_v actual_o where_o there_o be_v sense_n to_o perceive_v it_o that_o heat_n be_v only_o produce_v one_o way_n further_o prove_v viz._n by_o put_v the_o part_n of_o matter_n into_o motion_n a_o seem_a objection_n answer_v his_o comparison_n of_o the_o blood_n accension_n with_o flame_n consider_v there_o be_v several_a degree_n of_o heat_n produce_v without_o visible_a flame_n nitre_n make_v up_o no_o part_n of_o the_o flame_n the_o nitrous_a part_n of_o the_o air_n promote_v flame_n by_o keep_v its_o matter_n from_o disperse_v too_o soon_o wherefore_o fire_n burn_v better_a in_o the_o winter_n than_o in_o the_o summer_n why_o a_o candle_n in_o a_o glass_n globe_n be_v extinguish_v by_o extract_v the_o air._n his_o comparison_n of_o extinguish_a flame_n compare_v with_o the_o death_n of_o a_o animal_n consider_v nitre_n do_v not_o promote_v the_o heat_n of_o the_o blood_n but_o rather_o depress_n for_o in_o liquids_n the_o volatile_a part_n be_v sufficient_o oppose_v by_o the_o part_n of_o the_o blood_n and_o keep_v from_o fly_v away_o blood_n may_v grow_v hot_a without_o a_o sulphureous_a pabulum_fw-la his_o comparison_n of_o the_o recrement_n of_o flame_n and_o of_o blood_n consider_v which_o appear_v wide_o inconsistent_a first_o because_o that_o juice_n that_o sweat_v through_o the_o coat_n of_o the_o trachea_n and_o the_o skin_n be_v not_o recrementitious_a and_o the_o fuliginous_a effluvium_n of_o fire_n be_v recrement_n second_o because_o the_o former_a if_o not_o carry_v of_o increase_v it_o but_o smoak_n extinguish_v fire_n smoak_n be_v not_o altogether_o a_o effluvium_fw-la of_o flame_n smoak_n thus_o compound_v a_o digression_n in_o which_o be_v give_v the_o reason_n why_o flame_n ascend_v rather_o than_o descend_v which_o be_v because_o it_o have_v less_o opposition_n in_o its_o motion_n that_o way_n because_o the_o air_n the_o near_a to_o the_o centre_n make_v strong_a opposition_n than_o that_o above_o which_o be_v prove_v by_o these_o experiment_n it_o be_v also_o prove_v by_o the_o expansion_n of_o gunpowder_n the_o motion_n of_o flame_n downward_o be_v a_o natural_a motion_n in_o philosophy_n diemerbroek_n opinion_n examine_v dr._n henshaw_n '_o s_o opinion_n consider_v ancient_a and_o modern_a writer_n have_v rather_o dispute_v about_o the_o use_n of_o word_n than_o much_o difference_n observable_a in_o their_o opinion_n the_o reason_n why_o heat_n affect_v our_o sensory_a do_v not_o show_v how_o it_o come_v by_o that_o power_n the_o blood_n grow_v hot_a by_o attrition_n the_o consequence_n of_o which_o be_v fermentation_n attrition_n and_o the_o consequence_n of_o it_o both_o to_o be_v signify_v by_o the_o word_n fermentation_n how_o far_o the_o heat_n of_o the_o blood_n proceed_v from_o pressure_n and_o mixture_n to_o dispute_v about_o word_n be_v not_o material_a in_o a_o enquity_n after_o the_o cause_n of_o thing_n the_o whole_a body_n be_v make_v up_o of_o vessel_n and_o humour_n contain_v in_o they_o by_o what_o mean_v the_o spirit_n and_o blood_n be_v mix_v in_o order_n â—o_o a_o fermentation_n animal_n spirit_n demonstrate_v in_o the_o substance_n of_o the_o brain_n viz._n that_o mucilaginous_a oily_a moisture_n which_o we_o call_v brain_n a_o objection_n answer_v that_o it_o be_v the_o most_o spirituous_a part_n of_o the_o blood_n and_o consequent_o animal_n spirit_n prove_v that_o oily_a substance_n be_v capable_a of_o perform_v all_o those_o action_n which_o we_o can_v suppose_v the_o animal_n spirit_n do_v another_o objection_n answer_v that_o these_o spirit_n be_v in_o a_o constant_a motion_n prove_v the_o nature_n of_o the_o animal_n spirit_n consider_v the_o reason_n of_o the_o heat_n of_o the_o blood_n explain_v how_o its_o heat_n be_v promote_v the_o heat_n of_o the_o blood_n vary_v according_a to_o the_o different_a quantity_n of_o they_o it_o vary_v also_o according_a to_o the_o sharpness_n of_o those_o humour_n that_o put_v the_o animal_n spirit_n