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time_n to_o acquire_v by_o the_o help_n only_o of_o its_o position_n may_v be_v impart_v to_o it_o in_o a_o very_a short_a time_n by_o the_o intervention_n of_o such_o a_o nimble_a agent_n as_o the_o fire_n as_o may_v be_v often_o though_o not_o always_o observe_v in_o tongue_n exper._n ix_o and_o such_o like_a iron_n utensil_n that_o have_v be_v ignite_v have_v be_v set_v to_o cool_v lean_v against_o some_o wall_n or_o other_o prop_n that_o keep_v they_o in_o a_o erect_a posture_n which_o make_v it_o probable_a that_o the_o great_a commotion_n of_o the_o part_n make_v by_o the_o vehement_a heat_n of_o the_o fire_n dispose_v the_o iron_n whilst_o it_o be_v yet_o soft_a and_o have_v its_o pore_n more_o lax_n and_o part_n more_o pliable_a dispose_v it_o i_o say_v to_o receive_v much_o quick_a impression_n from_o the_o magnetical_a effluvia_fw-la of_o the_o earth_n than_o it_o will_v have_v do_v if_o it_o have_v still_o be_v cold_a exper._n x_o and_o it_o be_v very_o observable_a to_o 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instance_n of_o the_o production_n of_o heat_n and_o i_o shall_v also_o forbear_v to_o insist_v on_o such_o know_a thing_n as_o the_o incalescence_n observable_a upon_o the_o pour_v either_o of_o oil_n of_o vitriol_n upon_o salt_n of_o tartar_n in_o the_o make_n of_o tartarum_fw-la vitriolatum_fw-la or_o of_o aqua_fw-la fortis_fw-la upon_o silver_n or_o quicksilver_n in_o the_o dissolution_n of_o these_o metal_n but_o shall_v rather_o choose_v to_o mention_v some_o few_o instance_n not_o so_o notorious_a as_o the_o former_a but_o not_o unfit_a by_o their_o variety_n to_o exemplify_v several_a of_o the_o differ_a way_n of_o exciting_a heat_n and_o yet_o i_o shall_v not_o decline_v the_o mention_n of_o the_o most_o obvious_a and_o familiar_a instance_n of_o all_o namely_o the_o heat_n observe_v in_o quicklime_n upon_o the_o affusion_n of_o cold_a water_n because_o among_o learned_a man_n and_o especial_o peripatetic_n i_o find_v cause_n to_o be_v assign_v that_o be_v either_o just_o 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remember_v be_v prove_v and_o if_o the_o emerge_n of_o heat_n be_v a_o sufficient_a reason_n to_o prove_v a_o latent_fw-la acid_a salt_n in_o lime_n i_o know_v not_o why_o i_o may_v not_o infer_v that_o the_o like_a salt_n lie_v conceal_v in_o other_o body_n which_o the_o chemist_n take_v to_o be_v of_o the_o pure_a or_o mere_a sort_n of_o alcalys_n for_o i_o have_v purposely_o try_v exper._n i_o that_o by_o put_v a_o pretty_a quantity_n of_o dry_a salt_n of_o tartar_n in_o the_o palm_n of_o my_o hand_n and_o wet_v it_o well_o in_o cold_a water_n there_o have_v be_v a_o very_a sensible_a heat_n produce_v in_o the_o mixture_n and_o when_o i_o have_v make_v the_o trial_n with_o a_o more_o considerable_a quantity_n of_o salt_n and_o water_n in_o a_o viol_n the_o heat_n prove_v troublesome_o intense_a and_o continue_v to_o be_v at_o least_o sensible_a a_o good_a while_n after_o this_o experiment_n seem_v to_o favour_v the_o opinion_n that_o the_o heat_v produce_v in_o lime_n whilst_o it_o 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but_o there_o may_v be_v a_o sense_n which_o i_o can_v explicate_v in_o few_o word_n wherein_o the_o cooperation_n of_o a_o substantial_a effluvium_fw-la for_o so_o i_o call_v it_o of_o the_o fire_n may_v be_v admit_v in_o give_v a_o account_n of_o our_o phaenomenon_n but_o the_o cause_n former_o assign_v as_o it_o be_v crude_o propose_v leave_v in_o my_o mind_n some_o scruple_n for_o it_o be_v not_o so_o easy_a to_o apprehend_v that_o such_o light_n and_o minute_n body_n as_o those_o of_o fire_n be_v suppose_v shall_v be_v so_o long_o detain_v as_o by_o this_o hypothesis_n they_o must_v be_v allow_v to_o be_v in_o quicklime_n keep_v in_o well-stopped_a vessel_n from_o get_v out_o of_o so_o lax_n and_o porous_a a_o body_n as_o lime_n especial_o since_o we_o see_v not_o a_o great_a incalescence_n or_o ebullition_n ensue_v upon_o the_o pour_v of_o water_n upon_o minium_n or_o crocus_n martis_n per_fw-la se_fw-la though_o they_o have_v be_v calcine_v by_o violent_a and_o last_a fire_n 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salt_n vehement_a enough_o to_o produce_v a_o sensible_a heat_n especial_o if_o we_o admit_v that_o there_o be_v such_o a_o change_n make_v in_o the_o pore_n as_o occasion_n a_o great_a increase_n of_o this_o agitation_n by_o the_o ingress_n and_o action_n of_o some_o subtle_a ethereal_a matter_n from_o which_o alone_a monsieur_n des_fw-fr cartes_n ingenious_o attempt_v to_o derive_v the_o incalescence_n of_o lime_n and_o water_n as_o well_o as_o that_o of_o metal_n dissolve_v in_o corrosive_a liquor_n though_o as_o to_o the_o phaenomena_n we_o have_v be_v consider_v there_o seem_v at_o least_o to_o concur_v a_o peculiar_a disposition_n of_o body_n wherein_o heat_n be_v to_o be_v produce_v to_o do_v one_o or_o both_o of_o these_o two_o thing_n namely_o to_o retain_v good_a store_n of_o the_o igneous_a effluvia_fw-la and_o to_o be_v by_o their_o adhesion_n or_o some_o other_o operation_n of_o the_o fire_n reduce_v to_o such_o a_o texture_n of_o its_o component_a particle_n as_o to_o be_v fit_a to_o have_v they_o easy_o penetrate_v and_o brisk_o as_o well_o as_o copious_o dissipate_v by_o invade_v water_n and_o this_o conjecture_n for_o i_o propose_v it_o as_o no_o other_o seem_v favour_v by_o divers_a phaenomena_n some_o whereof_o i_o shall_v now_o annex_v for_o here_o it_o may_v be_v observe_v that_o both_o the_o dissolve_a salt_n of_o tartar_n late_o mention_v and_o the_o artificial_a liquor_n that_o grow_v hot_a with_o the_o natural_a reacquire_v that_o disposition_n to_o incalescence_n upon_o a_o bare_a constipation_n or_o close_a texture_n of_o the_o part_n from_o the_o superfluous_a moisture_n they_o be_v drown_v in_o before_o the_o heat_n that_o bring_v they_o to_o this_o texture_n have_v be_v so_o gentle_a that_o it_o be_v no_o way_n likely_a that_o the_o igneous_a exhalation_n can_v themselves_o produce_v such_o a_o heat_n or_o at_o least_o that_o they_o shall_v adhere_v in_o such_o number_n as_o must_v be_v requisite_a to_o such_o a_o effect_n unless_o 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to_o be_v greedy_o enough_o soak_v in_o by_o the_o lump_n of_o lime_n and_o i_o further_o try_v that_o if_o on_o this_o lime_n so_o drench_v i_o pour_v cold_a water_n there_o ensue_v no_o manifest_a heat_n nor_o do_v i_o so_o much_o as_o find_v the_o lump_n swell_v and_o thereby_o break_v till_o some_o hour_n after_o which_o seem_v to_o argue_v that_o the_o texture_n of_o the_o lime_n be_v such_o as_o to_o admit_v the_o particle_n of_o the_o spirit_n of_o wine_n into_o some_o of_o its_o pore_n which_o be_v either_o large_a or_o more_o congruous_a without_o admit_v it_o into_o the_o most_o numerous_a one_o whereinto_o the_o liquor_n must_v be_v receive_v to_o be_v able_a sudden_o to_o dissipate_v the_o corpuscle_n of_o lime_n into_o their_o minute_a particle_n into_o which_o corpuscle_n it_o seem_v that_o the_o change_n that_o the_o aqueous_a particle_n receive_v by_o associate_a with_o the_o spirituous_a one_o make_v they_o far_o less_o fit_a to_o penetrate_v and_o move_v brisk_o 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of_o the_o retort_n and_o suffer_v to_o cool_v it_o appear_v to_o have_v a_o fiery_a disposition_n that_o it_o have_v not_o before_o for_o if_o any_o lump_n of_o it_o as_o big_a as_o a_o nutmeg_n or_o a_o almond_n be_v cast_v into_o the_o water_n it_o will_v hiss_v as_o if_o a_o coal_n of_o fire_n have_v be_v plunge_v into_o the_o liquor_n which_o be_v soon_o thereby_o sensible_o heat_v nay_o have_v keep_v divers_a lump_n of_o this_o prepare_a calx_fw-la well_o cover_v from_o the_o air_n for_o divers_a week_n to_o try_v whether_o it_o will_v retain_v this_o property_n i_o find_v as_o i_o expect_v that_o the_o calx_fw-la operate_v after_o the_o same_o manner_n if_o not_o more_o powerful_o for_o sometime_o especial_o when_o it_o be_v reduce_v to_o small_a piece_n it_o will_v upon_o its_o come_n into_o the_o water_n make_v such_o a_o brisk_a noise_n as_o may_v almost_o pass_v for_o a_o kind_n of_o explosion_n these_o phaenomena_n seem_v to_o argue_v that_o the_o disposition_n that_o lime_n have_v to_o grow_v hot_a with_o water_n depend_v much_o on_o some_o peculiar_a texture_n since_o the_o aqueous_a part_n that_o one_o will_v think_v capable_a of_o quench_v all_o or_o most_o of_o the_o atom_n of_o fire_n that_o be_v suppose_v to_o adhere_v to_o quicklime_n do_v not_o near_o so_o much_o weaken_v the_o disposition_n of_o it_o to_o incalescence_n as_o the_o accession_n of_o the_o spirituous_a corpuscle_n and_o their_o contexture_n with_o those_o of_o the_o lime_n increase_v that_o igneous_a disposition_n and_o that_o there_o may_v intervene_v such_o a_o association_n seem_v to_o i_o the_o more_o probable_a not_o only_o because_o much_o of_o the_o distil_a liquor_n be_v as_o phlegmatic_a as_o if_o it_o have_v be_v rob_v of_o its_o more_o active_a part_n but_o because_o i_o have_v sometime_o have_v spirit_n of_o wine_n come_v over_o with_o quicklime_n not_o in_o unobserved_a steam_n but_o white_a fume_n to_o which_o i_o shall_v add_v that_o beside_o that_o the_o taste_n and_o perhaps_o odour_n of_o the_o spirit_n of_o wine_n be_v often_o manifest_o change_v by_o a_o well-made_a distillation_n from_o quicklime_n i_o have_v sometime_o find_v that_o liquor_n to_o give_v the_o lime_n a_o kind_n of_o alcalizat_n penetrancy_n not_o to_o say_v fieriness_n of_o taste_n that_o be_v very_o brisk_a and_o remarkable_a but_o i_o will_v not_o undertake_v that_o every_o experimenter_n nor_o i_o myself_o shall_v always_o make_v trial_n of_o this_o kind_n with_o the_o same_o success_n that_o i_o have_v in_o those_o above_o recite_v in_o regard_n that_o i_o have_v find_v quick-limes_a to_o differ_v much_o not_o only_o according_a to_o the_o degree_n of_o their_o calcination_n and_o to_o their_o recentness_n but_o also_o and_o that_o especial_o according_a to_o the_o differ_a nature_n of_o the_o stone_n and_o other_o body_n calcine_v which_o observation_n engage_v i_o the_o more_o to_o propose_v what_o have_v be_v hitherto_o deliver_v about_o quicklime_n as_o only_a narrative_n and_o a_o conjecture_n which_o i_o now_o perceive_v have_v detain_v we_o so_o long_o that_o i_o be_o oblige_v to_o hasten_v to_o the_o remain_a experiment_n and_o to_o be_v the_o more_o succinct_a in_o deliver_v they_o exper._n vi_o and_o it_o will_v be_v convenient_a to_o begin_v with_o a_o instance_n or_o two_o of_o the_o production_n of_o heat_n wherein_o there_o appear_v not_o to_o intervene_v any_o thing_n in_o the_o part_n of_o the_o agent_n or_o patient_n but_o local_a motion_n and_o the_o natural_a effect_n of_o it_o and_o as_o to_o this_o sort_n of_o experiment_n a_o little_a attention_n and_o reflection_n may_v make_v some_o familiar_a phaenomenon_n apposite_a to_o our_o present_a purpose_n when_o for_o example_n a_o smith_n do_v hasty_o hammer_v a_o nail_n or_o such_o like_a piece_n of_o iron_n the_o hammer_v metal_n will_v grow_v exceed_o hot_a and_o yet_o
three_o either_o gold_n or_o silver_n or_o crystal_n or_o venetian_a talc_n or_o some_o other_o body_n that_o i_o elsewhere_o name_n &_o yet_o these_o body_n be_v endow_v with_o divers_a quality_n as_o the_o two_o former_a with_o fusibleness_n and_o malleability_n and_o all_o of_o they_o with_o weight_n and_o fixity_n so_o that_o in_o these_o and_o the_o like_a body_n whence_o chemist_n have_v not_o make_v it_o yet_o appear_v that_o their_o salt_n sulphur_n and_o mercury_n can_v be_v true_o and_o adequate_o separate_v it_o will_v scarce_o be_v other_o than_o precarious_a to_o derive_v the_o malleableness_n colour_n and_o other_o quality_n of_o such_o body_n from_o those_o principle_n under_o this_o head_n i_o consider_v also_o that_o a_o great_a part_n of_o the_o chemical_a doctrine_n of_o quality_n be_v bottom_v on_o or_o suppose_n beside_o their_o new_o question_a analysis_n by_o fire_n some_o other_o thing_n which_o as_o far_o as_o i_o know_v have_v not_o yet_o be_v well_o prove_v 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in_o a_o due_a proportion_n will_v make_v a_o bell-metal_n far_o more_o sonorous_a than_o either_o of_o they_o be_v before_o it_o be_v obvious_a enough_o for_o chemist_n themselves_o to_o observe_v that_o though_o lead_v be_v a_o insipid_a body_n and_o spirit_n of_o vinegar_n a_o very_a sharp_a one_o yet_o saccharum_n saturni_n that_o be_v compound_v out_o of_o these_o two_o have_v a_o sweetness_n that_o make_v it_o not_o ill_o deserve_v its_o name_n but_o this_o ill-grounded_a supposition_n of_o the_o chemist_n be_v extend_v far_o in_o a_o usual_a topic_n of_o they_o according_a to_o which_o they_o conclude_v that_o i_o know_v not_o how_o many_o quality_n as_o well_o manifest_a as_o occult_a must_v be_v explicate_v by_o their_o tria_fw-la prima_fw-la because_o they_o be_v not_o explicable_a by_o the_o four_o element_n of_o the_o peripatetic_n to_o make_v which_o argumentation_n valid_a it_o must_v be_v prove_v which_o i_o fear_v it_o will_v never_o be_v that_o there_o be_v no_o other_o way_n by_o which_o those_o quality_n may_v be_v explicate_v but_o by_o a_o determinate_a number_n of_o material_a principle_n whether_o four_o or_o three_o beside_o that_o till_o they_o have_v show_v that_o such_o quality_n may_v be_v intelligible_o explicate_v by_o their_o principle_n the_o objection_n will_v lie_v as_o strong_a for_o the_o aristotelian_o against_o they_o as_o for_o they_o against_o the_o aristotelian_o chap._n ii_o next_o i_o consider_v that_o there_o be_v divers_a quality_n even_o in_o mix_a body_n wherein_o it_o do_v not_o appear_v that_o the_o use_n of_o the_o chemical_a doctrine_n be_v necessary_a as_o for_o instance_n when_o pure_a gold_n be_v by_o heat_n only_o bring_v to_o fusion_n and_o consequent_o to_o the_o state_n of_o fluidity_n and_o upon_o the_o remission_n of_o that_o heat_n grow_v a_o solid_a and_o consistent_a body_n again_o what_o addition_n or_o expulsion_n or_o change_n of_o any_o of_o the_o tria_fw-la prima_fw-la do_v appear_v to_o be_v the_o cause_n of_o this_o change_n of_o consistence_n which_o be_v easy_a to_o be_v account_v for_o according_a to_o the_o mechanical_a way_n by_o the_o vehement_a agitation_n that_o the_o fire_n make_v of_o the_o minute_n part_n of_o the_o gold_n to_o bring_v it_o to_o fusion_n and_o the_o cohesion_n of_o those_o part_n by_o virtue_n of_o their_o gravity_n and_o fitness_n to_o adhere_v to_o one_o another_o when_o that_o agitation_n cease_v when_o venice_n glass_n be_v mere_o by_o be_v beat_v to_o powder_v deprive_v of_o its_o transparency_n and_o turn_v into_o a_o body_n opacous_a and_o white_a what_o need_n or_o use_v of_o the_o tria_fw-la prima_fw-la have_v we_o in_o the_o explication_n of_o this_o phaenomenon_n or_o of_o that_o other_o which_o occur_v when_o by_o bare_o melt_v down_o this_o white_a and_o opacous_a body_n it_o be_v deprive_v of_o its_o opacity_n and_o colour_n and_o become_v diaphanous_a and_o of_o this_o sort_n of_o instance_n you_o will_v meet_v with_o divers_a in_o the_o follow_a note_n about_o particular_a quality_n for_o which_o reason_n i_o shall_v forbear_v the_o mention_n of_o they_o here_o chap._n iii_o i_o observe_v too_o that_o the_o spagyrical_a doctrine_n of_o quality_n be_v insufficient_a and_o too_o narrow_a to_o reach_v to_o all_o the_o phaenomena_n or_o even_o to_o all_o the_o notable_a one_o that_o aught_o to_o be_v explicable_a by_o they_o and_o this_o insufficiency_n i_o find_v to_o be_v twofold_a for_o first_o there_o be_v divers_a quality_n of_o which_o chemist_n will_v not_o so_o much_o as_o attempt_v to_o give_v we_o explication_n and_o of_o other_o particular_a quality_n the_o explication_n such_o as_o they_o be_v that_o they_o give_v we_o be_v often_o very_o deficient_a and_o unsatisfactory_a and_o do_v not_o sometime_o so_o much_o as_o take_v notice_n of_o divers_a considerable_a phaenomena_n that_o belong_v to_o the_o quality_n whereof_o they_o pretend_v to_o give_v a_o account_n of_o which_o you_o will_v meet_v 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