he_o say_v that_o there_o be_v other_o way_n of_o calefaction_n as_o fermentation_n putrefaction_n and_o attrition_n but_o the_o sear_n only_o observable_a in_o solid_a body_n the_o design_n accension_n of_o which_o be_v to_o prove_v that_o since_o the_o blood_n have_v not_o any_o other_o body_n apply_v to_o communicate_v heat_n to_o it_o and_o since_o it_o be_v not_o impregnate_v with_o saline_n corrosive_n but_o be_v sufficient_o stock_v with_o sulphureous_a particle_n and_o since_o fermentation_n putrefaction_n and_o attrition_n be_v only_o the_o cause_n of_o heat_n in_o solid_a body_n it_o must_v needs_o be_v preserve_v in_o a_o continual_a heat_n by_o accension_n of_o its_o sulphureous_a pabulum_fw-la but_o if_o we_o do_v hot_a but_o due_o consider_v how_o heat_n be_v promote_v in_o all_o these_o several_a sort_n of_o substance_n it_o will_v present_o appear_v that_o in_o philosophy_n there_o be_v but_o one_o way_n by_o which_o all_o whether_o liquid_a or_o solid_a grow_v hot_a and_o if_o so_o than_o it_o will_v follow_v that_o whether_o we_o say_v the_o blood_n grow_v hot_a by_o apply_v of_o a_o hot_a thing_n to_o it_o or_o saline_n corrosive_n whether_o by_o fermentation_n accension_n or_o attrition_n it_o will_v be_v equivalent_o the_o same_o to_o make_v it_o evident_a heat_n then_o that_o there_o be_v but_o one_o way_n by_o which_o all_o body_n grow_v hot_a and_o that_o to_o say_v that_o the_o heat_n of_o it_o proceed_v from_o the_o application_n of_o other_o hot_a body_n saline_n corrosive_n accension_n fermentation_n or_o attrition_n be_v but_o to_o express_v the_o same_o thing_n several_a way_n since_o they_o be_v all_o equivalent_o perform_v the_o same_o way_n we_o be_v to_o consider_v what_o be_v the_o nature_n of_o hot_a body_n and_o wherein_o their_o power_n consist_v either_o to_o cause_n heat_v themselves_o or_o to_o communicate_v that_o power_n to_o other_o and_o because_o several_a remiss_a degree_n of_o heat_n differ_v only_o in_o proportion_n from_o fire_n which_o be_v the_o most_o intense_a and_o because_o that_o be_v free_a from_o those_o mask_n and_o cloud_n which_o intervene_v it_o and_o our_o sense_n when_o it_o be_v in_o more_o remiss_a degree_n the_o best_a way_n to_o understand_v the_o reason_n of_o heat_n will_v be_v to_o consider_v wherein_o the_o essential_a nature_n of_o fire_n consist_v among_o philosopher_n sight_n although_o it_o be_v very_o dubious_a what_o it_o be_v that_o cause_v fire_n to_o differ_v so_o much_o from_o all_o other_o substance_n yet_o it_o be_v by_o the_o consent_n of_o most_o modern_n and_o evident_a from_o flame_n itself_o and_o the_o manner_n that_o it_o destroy_v other_o body_n by_o that_o it_o be_v make_v up_o of_o rarify_v matter_n who_o particle_n be_v in_o a_o swift_a and_o powerful_a intestine_a agitation_n and_o of_o a_o peculiar_a figure_n and_o size_n and_o if_o fire_n be_v nothing_o else_o but_o matter_n rarefy_v and_o in_o a_o swift_a motion_n and_o from_o that_o swift_a and_o intense_a motion_n of_o matter_n affect_v our_o organ_n of_o sense_n we_o perceive_v heat_n we_o must_v needs_o conclude_v that_o whatever_o rarefy_v matter_n and_o put_v its_o part_n into_o a_o brisk_a motion_n be_v the_o cause_n of_o heat_n and_o although_o according_a to_o the_o diversity_n of_o subject_n that_o heat_n be_v disperse_v through_o it_o have_v different_a appearance_n to_o our_o sense_n and_o in_o most_o it_o be_v light_a which_o when_o it_o exist_v separate_o be_v always_o join_v with_o it_o it_o be_v obscure_v by_o the_o interposition_n and_o mixture_n of_o other_o matter_n yet_o if_o heat_n depend_v essential_o upon_o the_o effect_n that_o rarefy_v matter_n in_o motion_n have_v upon_o our_o sense_n it_o be_v undeniable_o true_a that_o heat_n be_v cause_v only_o one_o way_n remote_o and_o proximate_o with_o respect_n to_o matter_n in_o motion_n and_o the_o effect_v it_o then_o have_v upon_o we_o viz._n by_o put_v the_o part_n of_o matter_n into_o a_o brisk_a motion_n to_o affect_v our_o sense_n with_o violence_n enough_o to_o cause_v such_o a_o sensation_n but_o before_o i_o proceed_v to_o a_o further_a proof_n of_o what_o i_o have_v assert_v viz._n 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 it_o be_v a_o controversy_n whether_o heat_v be_v actual_o in_o the_o body_n that_o cause_v it_o or_o whether_o matter_n in_o motion_n only_o produce_v such_o a_o effect_n as_o the_o sense_n of_o heat_n upon_o our_o sensory_a although_o it_o be_v not_o requisite_a i_o shall_v here_o publish_v my_o opinion_n of_o it_o yet_o it_o be_v necessary_a i_o shall_v explain_v what_o i_o mean_v when_o i_o say_v that_o heat_n be_v only_o produce_v one_o way_n or_o that_o heat_n be_v cause_v by_o put_v the_o part_n of_o matter_n into_o a_o swift_a motion_n or_o that_o heat_n depend_v on_o the_o effect_n which_o rarefy_v matter_n have_v upon_o our_o sense_n when_o it_o be_v in_o motion_n but_o if_o i_o be_v here_o to_o declare_v my_o opinion_n of_o sensation_n this_o point_n which_o be_v so_o different_o hold_v by_o various_a philosopher_n i_o shall_v say_v that_o as_o far_o as_o i_o can_v conceive_v of_o it_o heat_n be_v not_o actual_o in_o the_o body_n that_o cause_v it_o to_o be_v perceive_v by_o our_o sense_n but_o potential_o in_o as_o much_o as_o that_o body_n have_v a_o power_n to_o cause_v such_o a_o sensation_n and_o although_o a_o great_a many_o may_v wonder_v that_o fire_n which_o cause_n heat_v shall_v not_o be_v hot_a itself_o yet_o there_o be_v as_o much_o reason_n to_o believe_v that_o it_o be_v not_o as_o that_o a_o sword_n which_o will_v cause_v pain_n be_v not_o pain_n itself_o for_o those_o who_o think_v that_o fire_n which_o cause_n heat_v be_v heatt_z itself_o take_v the_o cause_n for_o the_o effect_n and_o affirm_v it_o to_o be_v so_o beside_o heat_v be_v only_o a_o sensation_n and_o it_o it_o be_v impossible_a there_o shall_v be_v a_o sensation_n where_o there_o be_v no_o sense_n it_o be_v impossible_a there_o shall_v be_v heat_n where_o there_o be_v only_a fire_n and_o no_o sense_n for_o it_o to_o work_v upon_o for_o heat_n be_v not_o a_o mode_n of_o matter_n rarefy_v and_o in_o motion_n but_o a_o effect_n of_o matter_n so_o modify_v but_o say_v they_o it_o be_v impossible_a for_o we_o to_o think_v so_o true_o if_o we_o be_v not_o direct_v in_o our_o thought_n by_o reason_n we_o may_v irrational_o think_v that_o matter_n in_o motion_n which_o only_o cause_v heat_n be_v heat_n but_o if_o our_o reason_n proceed_v upon_o those_o medium_n which_o our_o sense_n furnish_v we_o with_o and_o certain_o we_o can_v on_o no_o other_o we_o shall_v easy_o be_v induce_v to_o believe_v that_o the_o cause_n be_v not_o the_o effect_n there_o be_v a_o great_a deal_n of_o reason_n for_o we_o to_o believe_v so_o though_o none_o to_o the_o contrary_n when_o then_o i_o say_v that_o heat_n be_v only_o produce_v one_o way_n i_o mean_v that_o there_o be_v but_o one_o way_n to_o modify_v body_n so_o as_o to_o make_v they_o capable_a of_o cause_v heat_n when_o they_o affect_v our_o sensory_a and_o when_o i_o say_v that_o heat_n be_v cause_v by_o put_v the_o part_n of_o matter_n into_o motion_n i_o mean_v that_o a_o power_n of_o produce_v heat_n be_v cause_v so_o and_o when_o i_o say_v that_o heat_n depend_v on_o the_o effect_n that_o rarefy_v matter_n have_v upon_o our_o sense_n i_o mean_v it_o be_v cause_v by_o those_o affect_v our_o sense_n and_o because_o always_o when_o i_o have_v occasion_n to_o mention_v the_o cause_n of_o heat_n it_o will_v be_v too_o much_o circumlocution_n to_o say_v the_o power_n of_o cause_v heat_n be_v produce_v so_o or_o otherwise_o i_o shall_v use_v the_o word_n heat_v sometime_o to_o signify_v that_o motion_n of_o rarify_v matter_n which_o be_v sufficient_a to_o cause_v heat_n and_o shall_v call_v that_o motion_n heat_v in_o respect_n of_o the_o effect_n which_o it_o cause_v but_o to_o proceed_v to_o a_o further_o and_o more_o evident_a proof_n that_o heat_n prove_v or_o a_o power_n to_o produce_v it_o be_v only_o cause_v one_o way_n we_o be_v to_o consider_v how_o the_o motion_n of_o particle_n be_v carry_v on_o in_o all_o those_o which_o dr._n willis_n call_v different_a way_n of_o cause_v heat_n viz._n per_fw-la admotum_fw-la calidi_fw-la saline_n corrosive_n accension_n and_o even_o fermentation_n and_o putrefaction_n and_o first_o when_o water_n be_v put_v over_o the_o fire_n and_o heat_a per_fw-la admotum_fw-la calidi_fw-la the_o fine_a particle_n of_o fire_n penetrate_v the_o vessel_n be_v imbibe_v into_o the_o water_n and_o be_v fetter_v up_o and_o keep_v from_o fly_v away_o by_o the_o part_n of_o the_o liquor_n put_v they_o also_o into_o a_o quick_a motion_n from_o whence_o proceed_v a_o sensible_a heat_n in_o
sulphureous_a oily_a matter_n be_v far_a manifest_a by_o expose_v the_o brain_n of_o any_o animal_n to_o the_o air_n because_o they_o present_o grow_v rancid_n and_o fetid_v it_o appear_v then_o that_o the_o animal_n spirit_n be_v a_o oily_a mucilaginous_a substance_n abound_v with_o the_o most_o volatile_a salt_n and_o sulphur_n of_o the_o blood_n and_o that_o they_o be_v in_o a_o continual_a circulation_n from_o the_o brain_n and_o spinal_a marrow_n through_o the_o branch_n of_o the_o nerve_n and_o that_o be_v forcible_o lay_v down_o in_o the_o gland_n there_o meet_v with_o the_o arterial_a blood_n i_o shall_v next_o endeavour_v to_o show_v how_o the_o heat_n of_o the_o blood_n be_v carry_v on_o and_o continue_v which_o i_o conceive_v to_o be_v after_o this_o manner_n these_o oily_a salino-sulphureous_a spirit_n be_v violent_o drive_v explain_v through_o the_o nerve_n meet_v with_o the_o arterial_a blood_n in_o the_o glandule_n and_o these_o two_o liquor_n be_v forcible_o drive_v one_o against_o another_o the_o particle_n of_o they_o be_v intimate_o mix_v together_o by_o which_o mean_v the_o animal_n spirit_n be_v as_o if_o it_o be_v ground_n and_o rub_v betwixt_o the_o fix_a and_o more_o solid_a particle_n of_o the_o blood_n whereby_o they_o be_v minutely_o dissolve_v and_o be_v put_v into_o a_o swift_a intestine_a motion_n they_o endavour_v powerful_o to_o expand_v themselves_o and_o to_o fly_v away_o but_o be_v hold_v in_o and_o reverberate_v by_o those_o grosser_n particle_n their_o motion_n be_v by_o that_o mean_v invert_v and_o that_o force_v which_o if_o they_o have_v but_o liberty_n will_v be_v lose_v in_o a_o further_a expansion_n be_v invert_v and_o drive_v forcible_o upon_o the_o other_o particle_n they_o mutual_o increase_v and_o promote_v one_o another_o motion_n by_o which_o motion_n the_o blood_n when_o it_o affect_v our_o sensory_a cause_v we_o to_o perceive_v heat_n in_o carry_v on_o of_o which_o it_o be_v to_o be_v observe_v that_o the_o animal_n promote_v spirit_n be_v thus_o accidental_o expanded_a and_o put_v into_o motion_n by_o the_o grosser_n part_n of_o the_o blood_n and_o be_v thus_o hold_v in_o and_o strike_v back_o by_o they_o do_v not_o only_o by_o that_o mean_n fly_v back_o and_o increase_v each_o other_o motion_n but_o also_o hurry_v the_o grosser_n particle_n of_o the_o blood_n along_o with_o they_o and_o so_o increase_v their_o motion_n and_o by_o strike_v against_o they_o and_o knoke_v they_o together_o break_v they_o as_o if_o it_o be_v into_o small_a part_n and_o consequent_o ratify_v and_o expand_v they_o also_o it_o be_v further_a to_o be_v observe_v that_o as_o these_o spirit_n they_o be_v more_o or_o less_o in_o quantity_n so_o the_o gross_a part_n of_o the_o blood_n grind_v they_o together_o and_o put_v they_o in_o motion_n they_o more_o powerful_o or_o less_o vigorous_o expand_v and_o move_v according_o digest_v and_o rarify_v the_o mass_n of_o blood_n to_o a_o high_a or_o low_a degree_n and_o consequent_o put_v the_o part_n of_o it_o into_o a_o strong_a or_o weak_a motion_n we_o may_v further_o take_v notice_n also_o that_o the_o sharp_a the_o particle_n motion_n of_o the_o blood_n be_v so_o they_o corrode_v and_o grind_v the_o spirit_n into_o part_n with_o great_a violence_n and_o consequent_o sharpen_v their_o motion_n again_o when_o the_o mass_n of_o blood_n be_v very_o full_a of_o and_o plentiful_o ferment_v abound_v with_o volatile_a salt_n &_o sulphur_n the_o particle_n of_o it_o be_v with_o less_o difficulty_n put_v into_o motion_n by_o the_o spirit_n and_o join_v with_o they_o increase_v their_o motion_n and_o on_o the_o contrary_a when_o the_o mass_n of_o blood_n be_v more_o dull_a and_o phlegmatic_a it_o neither_o so_o powerful_o grind_v the_o animal_n spirit_n nor_o be_v so_o easy_o put_v into_o motion_n itself_o furthermore_o the_o animal_n spirit_n do_v not_o only_o according_a to_o spirit_n their_o different_a quantity_n different_o exagitate_v the_o mass_n of_o blood_n but_o also_o according_a to_o their_o different_a degree_n of_o activity_n whence_o the_o more_o volatile_a and_o strong_a the_o spirit_n be_v the_o more_o conspicuous_a be_v their_o effect_n last_o we_o may_v take_v notice_n that_o neither_o the_o animal_n spirit_n passive_a nor_o the_o mass_n of_o blood_n be_v altogether_o active_a or_o passive_a in_o produce_v these_o effect_n but_o mutual_o both_o of_o they_o and_o by_o turn_v have_v premise_v this_o short_a account_n of_o the_o heat_n of_o the_o blood_n without_o any_o manner_n of_o proof_n to_o the_o end_n that_o we_o may_v have_v a_o more_o clear_a and_o entire_a view_n how_o it_o be_v cause_v without_o the_o interruption_n it_o will_v have_v make_v to_o prove_v every_o paragraph_n as_o i_o propose_v it_o i_o shall_v now_o proceed_v to_o a_o proof_n of_o what_o i_o have_v propose_v collective_o for_o the_o material_a formal_a and_o efficient_a cause_n of_o it_o and_o first_o that_o the_o animal_n spirit_n and_o arterial_a blood_n be_v both_o forcible_o lay_v down_o in_o the_o glandule_n i_o have_v give_v sufficient_a reason_n to_o evince_v in_o my_o treatise_n of_o muscular_a motion_n and_o have_v give_v further_a proof_n of_o it_o here_o to_o prove_v then_o that_o the_o heat_n of_o the_o blood_n do_v proceed_v prove_v from_o that_o fermentation_n it_o be_v necessary_a to_o explain_v the_o mechanical_a motion_n of_o the_o part_n of_o those_o liquor_n that_o work_n mutual_o one_o upon_o another_o i_o shall_v in_o the_o next_o place_n show_v that_o the_o heat_n of_o the_o blood_n be_v cause_v by_o such_o a_o mechanical_a motion_n of_o part_n as_o i_o have_v before_o mention_v that_o the_o animal_n spirit_n than_o be_v forcible_o drive_v against_o the_o arterial_a blood_n be_v so_o self_n evident_a that_o it_o need_v no_o proof_n and_o if_o so_o it_o must_v needs_o follow_v that_o the_o particle_n of_o the_o one_o will_v be_v intimate_o mix_v with_o the_o other_o and_o it_o be_v undeniable_o true_a that_o the_o animal_n spirit_n will_v by_o that_o mean_n be_v ground_n and_o rub_v betwixt_o the_o particle_n of_o the_o blood_n which_o be_v in_o motion_n and_o among_o which_o they_o be_v mix_v and_o the_o animal_n spirit_n be_v of_o a_o oily_a salino-sulphureous_a nature_n will_v consequent_o be_v expanded_a and_o rarify_v and_o put_v by_o that_o mean_n into_o a_o swift_a degree_n of_o motion_n be_v evident_a whether_o we_o consider_v the_o effect_n that_o solid_a or_o liquid_a substance_n have_v on_o one_o another_o when_o in_o motion_n for_o amber_n by_o a_o violent_a attrition_n of_o its_o part_n against_o a_o woollen_a cloth_n feel_v hot_a the_o sulphureous_a fat_a effluvium_n be_v by_o that_o attrition_n increase_v and_o cause_v to_o fly_v out_o in_o great_a quantity_n it_o be_v evident_a also_o by_o strike_v of_o a_o piece_n of_o flint_n against_o steel_n that_o the_o sulphureous_a particle_n of_o the_o flint_n be_v as_o if_o it_o be_v disyok_v from_o the_o embrace_n of_o the_o more_o firm_a and_o solid_a particle_n of_o the_o stone_n and_o be_v rub_v and_o grind_v betwixt_o they_o be_v put_v into_o a_o violent_a motion_n which_o cause_v they_o so_o much_o to_o rarify_v and_o expand_v that_o whenever_o they_o affect_v our_o sensory_a they_o cause_v that_o sensation_n we_o call_v heat_n which_o be_v according_o violent_a as_o their_o degree_n of_o motion_n be_v more_o or_o less_o intense_a and_o so_o amber_n by_o a_o mild_a attrition_n be_v moderate_o warm_a and_o by_o a_o violent_a more_o sensible_a again_o it_o be_v observable_a in_o the_o turn_n of_o any_o large_a and_o prove_v weighty_a wheel_n where_o the_o extraordinary_a weight_n make_v such_o a_o forcible_a pressure_n of_o those_o part_n that_o lie_v about_o the_o axletree_n that_o by_o strong_a and_o frequent_a attrition_n of_o the_o part_n together_o the_o crude_a sulphur_n which_o be_v fetter_v up_o in_o the_o substance_n of_o the_o wood_n be_v by_o degree_n loosen_a and_o dissolve_v and_o be_v put_v into_o motion_n be_v rarify_v and_o expanded_a which_o be_v still_o ground_n betwixt_o the_o solider_fw-la part_n of_o the_o wood_n its_o part_n be_v yet_o put_v into_o so_o strong_a a_o motion_n that_o they_o break_v and_o dissolve_v that_o solid_a substance_n and_o by_o create_v a_o flame_n consume_v and_o burn_v it_o in_o like_a manner_n the_o particle_n of_o fire_n be_v apply_v to_o gunpowder_n by_o dissolve_v and_o grind_n of_o its_o part_n in_o piece_n and_o put_v they_o into_o a_o violent_a motion_n cause_v they_o to_o expand_v and_o explode_v but_o not_o only_o solid_a body_n cause_n heat_n by_o particle_n grind_v of_o volatile_a sulphureous_a particle_n betwixt_o they_o and_o so_o by_o put_v they_o into_o motion_n but_o also_o the_o patticle_n of_o liquids_n by_o grind_v one_o upon_o another_o put_v themselves_o into_o so_o violent_a a_o motion_n as_o not_o only_o to_o cause_v heat_n but_o
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
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
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
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