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
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 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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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