the_o matter_n boil_v over_o and_o though_o there_o be_v a_o great_a commotion_n excite_v by_o the_o action_n and_o reaction_n of_o the_o ingredient_n which_o be_v attend_v with_o a_o copious_a froth_n and_o a_o hiss_a noise_n yet_o it_o be_v a_o pretty_a while_n ere_o the_o glass_n be_v sensible_o warm_a on_o the_o outside_n but_o by_o that_o time_n the_o salt_n be_v all_o dissolve_v the_o liquor_n in_o the_o thermoscope_n appear_v to_o be_v impel_v up_o about_o three_o inch_n and_o a_o half_a and_o yet_o if_o my_o memory_n do_v not_o much_o deceive_v i_o i_o have_v find_v that_o by_o mix_v salt_n of_o tartar_n with_o another_o salt_n the_o texture_n of_o the_o fix_a alkali_n be_v so_o alter_v that_o upon_o the_o affusion_n of_o spirit_n of_o verdigrease_n make_v without_o spirit_n of_o vinegar_n and_o spirit_n of_o wine_n though_o there_o ensue_v a_o great_a conflict_n with_o noise_n and_o bubble_n yet_o instead_o of_o a_o incalescence_n a_o considerable_a degree_n of_o coldness_n be_v produce_v exper._n x._o it_o be_v very_o probable_a that_o further_a trial_n will_v furnish_v we_o with_o more_o instance_n to_o show_v how_o the_o production_n of_o cold_a may_v in_o some_o case_n be_v effect_v vary_v or_o hinder_v by_o mechanical_a circumstance_n that_o be_v easy_o and_o usual_o overlook_v i_o remember_v on_o this_o occasion_n that_o though_o in_o the_o experiment_n above_o recite_v we_o observe_v that_o oil_n of_o vitriol_n and_o water_n be_v first_o shake_v together_o the_o volatile_a salt_n of_o sal_fw-la ammoniac_a be_v afterward_o put_v to_o they_o produce_v a_o sensible_a coldness_n yet_o i_o find_v that_o if_o a_o little_a oil_n of_o vitriol_n and_o of_o the_o volatile_a salt_n be_v first_o put_v together_o though_o soon_o after_o a_o considerable_a proportion_n of_o water_n be_v add_v there_o will_v be_v produce_v not_o a_o coldness_n but_o a_o manifest_a degree_n of_o heat_n which_o will_v impel_v up_o the_o liquor_n in_o the_o thermoscope_n to_o the_o 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be_v that_o when_o the_o minute_n part_n of_o a_o body_n be_v in_o or_o arrive_v at_o such_o a_o state_n that_o they_o be_v more_o slow_o or_o faint_o agitate_a then_o those_o of_o our_o finger_n or_o other_o organ_n of_o feeling_n we_o judge_v they_o cold_a these_o two_o thing_n lay_v together_o seem_v plain_o enough_o to_o argue_v that_o a_o privation_n or_o negation_n of_o that_o local_a motion_n that_o be_v requisite_a to_o constitute_v heat_n may_v suffice_v for_o the_o denominate_v a_o body_n cold_a as_o coldness_n be_v a_o quality_n of_o the_o object_n which_o as_o it_o be_v perceive_v by_o the_o mind_n be_v also_o a_o affection_n of_o the_o sentient_a and_o therefore_o a_o imminution_n of_o such_o a_o degree_n of_o former_a motion_n as_o be_v necessary_a to_o make_v a_o body_n hot_a as_o to_o sense_n and_o which_o be_v sufficient_a to_o the_o production_n of_o sensible_a coldness_n may_v be_v mechanical_o make_v since_o slowness_n as_o well_o as_o swiftness_n be_v a_o mode_n of_o local_a motion_n be_v a_o mechanical_a thing_n and_o though_o its_o effect_n which_o be_v coldness_n seem_v a_o privation_n or_o negation_n yet_o the_o cause_n of_o it_o may_v be_v a_o positive_a agent_n act_v mechanical_o by_o clog_a the_o agile_a calorific_a particle_n or_o deadn_v their_o motion_n or_o pervert_v their_o determination_n or_o by_o some_o other_o intelligible_a way_n bring_v they_o to_o a_o state_n of_o coldness_n as_o to_o sense_n i_o say_v coldness_n as_o to_o sense_n because_o as_o it_o be_v a_o tactile_a quality_n in_o the_o popular_a acception_n of_o it_o it_o be_v relative_a to_o our_o organ_n of_o feel_v as_o we_o see_v that_o the_o same_o lukewarm_a water_n will_v appear_v hot_a and_o cold_a to_o the_o same_o man_n hand_n if_o when_o both_o be_v plunge_v into_o it_o one_o of_o they_o shall_v have_v be_v new_o
of_o 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 quick_a silver_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 questionable_a or_o manifest_o erroneous_a for_o as_o to_o what_o be_v inculcate_v by_o the_o school_n about_o the_o incalescence_n of_o a_o mixture_n of_o quicklime_n and_o water_n by_o virtue_n of_o a_o suppose_a antiperistasis_n or_o invigoration_n of_o the_o internal_a heat_n of_o the_o lime_n by_o its_o be_v environ_v by_o cold_a water_n i_o have_v elsewhere_o show_v that_o this_o be_v but_o a_o imaginary_a cause_n by_o deliver_v upon_o experiment_n which_o any_o man_n may_v easy_o make_v that_o if_o instead_o of_o cold_a water_n the_o liquor_n be_v pour_v on_o very_o hot_a the_o ebullition_n of_o the_o lime_n will_v not_o be_v the_o less_o but_o rather_o the_o great_a and_o oil_n of_o turpentine_n which_o be_v a_o light_a and_o be_v look_v upon_o as_o a_o subtle_a liquor_n than_o water_n though_o it_o be_v pour_v quite_o cold_a on_o quicklime_n will_v not_o that_o i_o have_v observe_v grow_v so_o much_o as_o sensible_o hot_a with_o it_o and_o now_o i_o have_v mention_v the_o incalescence_n of_o lime_n which_o though_o a_o abvious_a phaenomenon_n have_v exercise_v the_o wit_n of_o divers_a philosopher_n and_o chemist_n i_o will_v add_v two_o or_o three_o observation_n in_o order_n to_o a_o inquiry_n that_o may_v be_v some_o other_o time_n make_v into_o the_o genuine_a cause_n of_o it_o which_o be_v not_o so_o easy_a to_o be_v find_v as_o many_o learned_a man_n may_v at_o first_o sight_n imagine_v the_o acute_a helmont_n indeed_o and_o his_o follower_n have_v ingenious_o enough_o attempt_v to_o derive_v the_o heat_n under_o consideration_n from_o the_o conflict_n of_o some_o alealizate_n and_o acid_n salt_n that_o be_v to_o be_v find_v in_o quicklime_n and_o be_v dissolve_v and_o so_o set_v at_o liberty_n to_o fight_v with_o one_o another_o by_o the_o water_n that_o slake_v the_o lime_n but_o though_o we_o have_v some_o manifest_a mark_n of_o a_o alcalizate_a salt_n in_o lime_n yet_o that_o it_o contain_v also_o a_o acid_n salt_n have_v not_o that_o i_o 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 i._n try_v 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 be_v quench_v proceed_v from_o the_o empyreuma_n as_o the_o chemist_n call_v it_o or_o impression_n leave_v by_o the_o violent_a fire_n that_o be_v employ_v to_o reduce_v the_o stone_n to_o lime_n but_o if_o by_o empyreuma_n be_v mean_v a_o bare_a impression_n make_v by_o the_o fire_n it_o will_v be_v more_o requisite_a than_o easy_a to_o declare_v intelligible_o in_o what_o that_o impression_n consist_v and_o how_o it_o operate_v to_o produce_v such_o considerable_a effect_n and_o if_o the_o effect_n be_v ascribe_v to_o swarm_n of_o atom_n of_o fire_n that_o remain_v adherent_a to_o the_o substance_n of_o the_o lime_n and_o be_v set_v at_o liberty_n to_o fly_v away_o by_o the_o liquor_n which_o seem_v to_o be_v argue_v by_o the_o slake_n of_o lime_n without_o water_n if_o it_o be_v for_o some_o time_n leave_v in_o the_o air_n whereby_o the_o atom_n of_o fire_n get_v opportunity_n to_o fly_v away_o by_o little_a and_o little_a if_o this_o i_o say_v be_v allege_v i_o will_v not_o deny_v 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 who_o effluvium_n or_o emanation_n appear_v to_o adhere_v to_o they_o by_o the_o increase_n of_o weight_n that_o lead_v if_o not_o also_o mars_n do_v manifest_o receive_v from_o the_o operation_n of_o the_o fire_n to_o which_o i_o shall_v add_v that_o whereas_o one_o will_v think_v that_o the_o igneous_a atom_n shall_v either_o fly_v away_o or_o be_v extinguish_v by_o the_o superven_a of_o water_n i_o know_v and_o elsewhere_o give_v account_n of_o a_o ii_o experiment_n in_o which_o two_o liquor_n whereof_o one_o be_v furnish_v i_o by_o nature_n do_v by_o be_v several_a time_n separate_v and_o reconjoyn_v without_o additament_n at_o each_o congress_n produce_v a_o sensible_a heat_n and_o a_o instance_n of_o this_o kind_n though_o iii_o not_o so_o odd_a i_o purposely_o seek_v and_o find_v in_o salt_n of_o tartar_n from_o which_o after_o it_o have_v be_v once_o heat_v by_o the_o affusion_n of_o water_n we_o abstract_a or_o evaporate_v the_o liquor_n without_o violence_n of_o fire_n till_o the_o salt_n be_v again_o dry_a and_o then_o put_v on_o water_n a_o second_o time_n the_o same_o salt_n grow_v hot_a again_o in_o the_o vial_n and_o if_o i_o misremember_v not_o it_o produce_v this_o incalescence_n the_o three_o time_n if_o not_o the_o four_o and_o may_v probable_o have_v do_v it_o often_o if_o i_o have_v have_v occasion_n to_o prosecute_v the_o experiment_n which_o seem_v at_o least_o to_o argue_v that_o the_o great_a violence_n of_o fire_n be_v not_o necessary_a to_o impress_v what_o pass_v for_o a_o empyreum_fw-la upon_o all_o calcine_v body_n that_o will_v heat_n with_o water_n and_o on_o this_o occasion_n i_o shall_v venture_v to_o add_v that_o i_o have_v sometime_o doubt_v whether_o the_o incalescence_n may_v not_o much_o depend_v upon_o the_o particular_a disposition_n of_o the_o calcine_v body_n which_o be_v deprive_v of_o its_o former_a moisture_n and_o make_v more_o porous_a by_o the_o fire_n do_v by_o the_o help_n of_o those_o igneous_a effluvium_n for_o the_o most_o part_n of_o a_o saline_a nature_n that_o be_v disperse_v through_o it_o and_o adhere_v to_o it_o acquire_v such_o a_o texture_n that_o the_o water_n impel_v by_o its_o own_o weight_n and_o the_o pressure_n of_o the_o atmosphere_n be_v able_a to_o get_v into_o a_o multitude_n of_o its_o pore_n at_o once_o and_o sudden_o dissolve_v the_o igneous_a and_o alcalizate_a salt_n it_o every_o where_o meet_v with_o there_o and_o brisk_o disjoin_v the_o earthy_a and_o solid_a particle_n that_o be_v blend_v with_o they_o which_o be_v exceed_o numerous_a though_o each_o of_o they_o perhaps_o be_v very_a minute_n and_o move_v but_o a_o very_a little_a way_n yet_o their_o multitude_n make_v the_o confuse_a agitation_n of_o the_o whole_a aggregate_v of_o they_o and_o of_o the_o particle_n of_o the_o water_n and_o salt_n vehement_a
that_o a_o considerable_a degree_n of_o cold_a be_v produce_v by_o the_o dissolution_n of_o sal_fw-la ammoniac_a in_o common_a water_n yet_o by_o a_o additament_n though_o but_o single_a the_o texture_n of_o it_o may_v be_v so_o alter_v that_o instead_o of_o cold_a a_o notable_a degree_n of_o heat_n will_v be_v produce_v if_o it_o be_v dissolve_v in_o that_o liquor_n for_o the_o manifestation_n of_o which_o we_o devise_v the_o follow_a experiment_n we_o take_v quicklime_n and_o slake_v it_o in_o common_a cold_a water_n that_o all_o the_o igneous_a or_o other_o particle_n to_o which_o its_o power_n of_o heat_n that_o liquor_n be_v ascribe_v may_v be_v extract_v and_o imbibe_v and_o so_o the_o calx_fw-la free_v from_o they_o then_o on_o the_o remain_a powder_n fresh_a water_n be_v often_o pour_v that_o all_o adhere_a relic_n of_o salt_n may_v be_v wash_v off_o after_o this_o the_o thus_o dulcify_v calx_fw-la be_v again_o well_o dry_v be_v mingle_v with_o a_o equal_a weight_n of_o 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according_o do_v scarce_o sensible_o raise_v the_o spirit_n of_o wine_n in_o the_o thermoscope_n though_o that_o be_v a_o tender_a one_o then_o lay_v aside_o that_o water_n and_o put_v the_o instrument_n into_o fresh_a of_o the_o same_o temper_n we_o put_v to_o it_o a_o very_a yellow_a sublimate_n that_o ascend_v high_a than_o the_o other_o part_n and_o seem_v to_o consist_v of_o the_o more_o sulphureous_a flower_n of_o the_o antimony_n with_o a_o mixture_n of_o the_o more_o volatile_a part_n of_o the_o shall_v ammoniac_a and_o this_o substance_n make_v the_o tinct_a spirit_n in_o the_o thermoscope_n descend_v very_o slow_o about_o a_o quarter_n of_o a_o inch_n but_o when_o the_o instrument_n be_v put_v into_o fresh_a water_n of_o the_o same_o temper_n and_o we_o have_v put_v in_o some_o of_o the_o powder_n of_o the_o low_a sort_n of_o sublimate_n which_o be_v dark_a colour_v though_o both_o the_o antimony_n and_o sal_fw-la ammoniac_a it_o consist_v of_o have_v be_v long_o expose_v to_o the_o action_n of_o a_o sublime_a heat_n yet_o the_o water_n be_v thereby_o speedy_o and_o notable_o cool_v insomuch_o that_o the_o spirit_n of_o wine_n in_o the_o weatherglass_n hasty_o descend_v and_o continue_v to_o sink_v till_o by_o our_o guess_n it_o have_v fall_v not_o much_o short_a of_o three_o inch_n of_o these_o phaenomena_n the_o etiology_n as_o some_o modern_n call_v the_o theory_n which_o propose_v the_o cause_n of_o thing_n be_v more_o easy_a to_o be_v find_v by_o a_o little_a consideration_n than_o to_o be_v make_v out_o in_o few_o word_n we_o make_v also_o a_o experiment_n like_o that_o above_o recite_v by_o sublime_v three_o ounce_n a_o piece_n of_o minimum_fw-la and_o sal_fw-la ammoniac_a in_o which_o trial_n we_o find_v that_o though_o in_o the_o caput_fw-la mortuum_fw-la the_o salt_n have_v notable_o wrought_v upon_o the_o calx_fw-la of_o lead_n and_o be_v in_o part_n associate_v with_o it_o as_o appear_v by_o the_o whiteness_n of_o the_o say_v caput_fw-la mortuum_fw-la by_o its_o sweetish_a taste_n and_o by_o the_o weight_n which_o exceed_v four_o dram_n that_o of_o all_o the_o minium_n yet_o a_o convenient_a quantity_n of_o this_o powder_a mixture_n be_v put_v into_o water_n wherein_o the_o former_a weatherglass_n have_v be_v keep_v a_o while_n the_o tinct_a spirit_n of_o wine_n be_v not_o manifest_o either_o raise_v or_o depress_v and_o when_o in_o another_o glass_n we_o prosecute_v the_o trial_n with_o the_o shall_v ammoniac_a that_o have_v be_v sublime_v from_o the_o minium_n it_o do_v indeed_o make_v the_o spirit_n of_o wine_n descend_v but_o scarce_o a_o quarter_n so_o much_o as_o it_o have_v be_v make_v to_o fall_v by_o the_o late_o mention_v sublimate_n of_o sal_fw-la ammoniac_a and_o antimony_n exper._n xiii_o it_o be_v know_v that_o many_o learned_a man_n beside_o several_a chemical_a writer_n ascribe_v the_o incalescence_n that_o be_v meet_v with_o in_o the_o dissolution_n of_o metal_n to_o a_o conflict_n arise_v from_o a_o certain_a antipathy_n or_o hostility_n which_o they_o suppose_v between_o the_o conflict_a body_n and_o particular_o between_o the_o acid_n salt_n of_o the_o one_o and_o the_o alcalizate_a salt_n whether_o fix_v or_o volatile_a of_o the_o other_o but_o since_o this_o doctrine_n suppose_v a_o hatred_n between_o inanimate_a body_n in_o which_o it_o be_v hard_a to_o conceive_v how_o there_o can_v be_v any_o true_a passion_n and_o do_v not_o intelligible_o declare_v by_o what_o mean_v their_o suppose_a hostility_n produce_v heat_n it_o be_v not_o likely_a that_o for_o these_o and_o some_o other_o reason_n inquisitive_a naturalist_n will_v easy_o acquiesce_v in_o it_o and_o on_o the_o other_o side_n it_o may_v be_v consider_v whether_o it_o be_v not_o more_o probable_a that_o heat_n sudden_o produce_v in_o mixture_n proceed_v either_o from_o a_o very_a quick_a and_o
first_o with_o spirit_n of_o vinegar_n and_o then_o of_o wine_n after_o the_o long_a and_o laborious_a way_n prescribe_v by_o basilius_n and_o zwelfer_n but_o easy_o and_o expeditious_o by_o a_o simple_a distillation_n of_o crude_a verdigrease_n of_o the_o better_a sort_n for_o when_o you_o have_v with_o this_o liquor_n be_v if_o there_o be_v need_n once_o rectify_v dissolve_v as_o much_o good_a salt_n of_o tartar_n as_o it_o will_v take_v up_o in_o the_o cold_a if_o you_o draw_v off_o the_o menstruum_fw-la ad_fw-la siccitatem_fw-la the_o remain_v dry_a salt_n will_v be_v manifest_o alter_v in_o texture_n even_o to_o the_o eye_n and_o will_v ready_o enough_o in_o high_a rectify_a spirit_n of_o wine_n afford_v a_o solution_n which_o i_o have_v find_v considerable_a in_o order_n to_o divers_a use_n that_o concern_v not_o our_o present_a discourse_n exper._n vi_o to_o the_o consideration_n of_o the_o follower_n of_o helmont_n i_o shall_v recommend_v a_o experiment_n of_o that_o famous_a chymist_n which_o seem_v to_o suit_v exceed_v well_o with_o the_o doctrine_n propose_v in_o this_o section_n for_o he_o tell_v we_o that_o if_o by_o a_o subtle_a menstruum_fw-la to_o which_o he_o ascribe_v that_o power_n quicksilver_n be_v devest_v or_o deprive_v of_o its_o external_a sulphur_n as_o he_o term_v it_o all_o the_o rest_n of_o the_o fluid_a metal_n which_o he_o witty_o enough_o style_n the_o kernel_n of_o mercury_n will_v be_v no_o long_o corrosible_a by_o it_o so_o that_o upon_o this_o supposition_n though_o common_a quicksilver_n be_v observe_v to_o be_v so_o obnoxious_a to_o aqua_fw-la fortis_fw-la that_o the_o same_o quantity_n of_o that_o liquor_n will_v dissolve_v more_o of_o it_o than_o of_o any_o other_o metal_n yet_o if_o by_o the_o deprivation_n of_o some_o portion_n of_o it_o the_o latent_fw-la texture_n of_o the_o metal_n be_v alter_v though_o not_o that_o i_o remember_v the_o visible_a appearance_n of_o it_o the_o body_n that_o be_v before_o so_o easy_o 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in_o the_o transmute_v body_n and_o yet_o divers_a of_o they_o as_o flint_n ruby_n sapphire_n gold_n silver_n etc._n etc._n that_o be_v insoluble_a before_o some_o of_o they_o in_o any_o know_a menstruum_n and_o other_o in_o any_o but_o corrosive_a liquor_n come_v to_o be_v capable_a of_o be_v dissolve_v in_o common_a water_n exper._n viii_o it_o be_v a_o remarkable_a phaenomenon_n that_o suit_v very_o well_o with_o our_o opinion_n about_o the_o interest_n of_o mechanical_a principle_n in_o the_o corrosive_a power_n of_o menstruum_n and_o the_o corrosibility_n of_o body_n that_o we_o produce_v by_o the_o follow_a experiment_n this_o we_o purposely_o make_v to_o show_v after_o how_o differ_v manner_n the_o same_o body_n may_v be_v dissolve_v by_o two_o menstruum_n who_o minute_n part_n be_v very_o differ_o constitute_v and_o agitate_a for_o whereas_o it_o be_v know_v that_o if_o we_o put_v large_a grain_n of_o sea-salt_n into_o common_a water_n they_o will_v be_v dissolve_v therein_o calm_o and_o silent_o without_o any_o appearance_n of_o conflict_n if_o we_o put_v such_o grain_n of_o salt_n into_o good_a oil_n of_o vitriol_n that_o liquor_n will_v fall_v surious_o upon_o they_o and_o produce_v for_o a_o good_a while_o a_o hiss_a noise_n with_o fume_n and_o a_o great_a store_n of_o bubble_n as_o if_o a_o potent_a menstruum_fw-la be_v corrode_a some_o stubborn_a metal_n or_o mineral_n and_o this_o experiment_n i_o the_o rather_o mention_v because_o it_o may_v be_v of_o use_n to_o we_o on_o divers_a other_o occasion_n for_o else_o it_o be_v not_o the_o only_a though_o it_o be_v the_o remarkabl_a that_o i_o make_v to_o the_o same_o purpose_n exper._n ix_o for_o whereas_o aqua_fw-la fortis_fw-la or_o aqua_fw-la regis_fw-la be_v pour_v upon_o file_n of_o copper_n will_v work_v upon_o they_o with_o much_o noise_n and_o ebullition_n i_o have_v try_v that_o good_a spirit_n of_o sal_fw-la ammoniac_a or_o urine_n be_v put_v upon_o the_o like_a file_n and_o leave_v there_o without_o stop_v the_o glass_n will_v quick_o begin_v to_o work_v on_o they_o and_o quiet_o dissolve_v they_o almost_o as_o water_n dissolve_v sugar_n to_o which_o may_v be_v add_v that_o even_o with_o oil_n of_o turpentine_n i_o have_v though_o but_o slow_o dissolve_v crude_a copper_n and_o the_o experiment_n seem_v to_o favour_v our_o conjecture_n the_o more_o because_o have_v try_v it_o several_a time_n it_o appear_v that_o common_a unrectify_v oil_n will_v perform_v the_o solution_n much_o quick_a than_o that_o which_o be_v purify_v and_o subtilise_v by_o rectification_n which_o though_o more_o subtle_a and_o penetrant_fw-la yet_o be_v it_o seem_v on_o that_o account_n less_o fit_a to_o dissolve_v the_o metal_n than_o the_o grosser_n oil_n who_o particle_n may_v be_v more_o solid_a or_o more_o advantageous_o shape_v or_o on_o some_o other_o mechanical_a account_n better_o qualify_v for_o the_o purpose_n exper._n x._o take_v good_a silver_n and_o have_v dissolve_v it_o in_o aqua_fw-la fortis_fw-la precipitate_v it_o with_o a_o sufficient_a quantity_n of_o good_a spirit_n of_o salt_n then_o have_v wash_v the_o calx_fw-la which_o will_v be_v very_o white_a with_o common_a water_n and_o dry_v it_o well_o melt_v it_o with_o a_o moderate_a fire_n into_o a_o fusible_a mass_n which_o will_v be_v very_o much_o of_o the_o nature_n of_o what_o chemist_n call_v cornu_fw-la lunae_fw-la and_o which_o they_o make_v by_o precipitate_v dissolve_v silver_n with_o a_o bare_a solution_n of_o common_a salt_n make_v in_o common_a water_n and_o whereas_o both_o spirit_n of_o salt_n and_o silver_n dissolve_v in_o aqua_fw-la fortis_fw-la will_n each_o of_o they_o apart_o ready_o dissolve_v in_o simple_a water_n our_o luna_n cornea_n not_o only_o will_v not_o do_v so_o but_o be_v so_o indispose_v to_o dissolution_n that_o i_o remember_v i_o have_v keep_v it_o in_o digestion_n some_o in_o aqua_fw-la fortis_fw-la and_o some_o in_o aqua_fw-la regius_fw-la and_o that_o for_o a_o good_a while_n and_o in_o no_o very_a faint_a degree_n of_o heat_n without_o be_v able_a to_o dissolve_v it_o like_o a_o metal_n the_o menstruum_n have_v indeed_o tinge_v themselves_o upon_o it_o but_o leave_v the_o composition_n undissolve_v at_o the_o bottom_n with_o this_o instance_n of_o which_o sort_n more_o may_v be_v afford_v by_o chemical_a precipitation_n i_o shall_v conclude_v what_o i_o design_v to_o offer_v at_o present_a about_o the_o corrosibility_n of_o body_n as_o it_o may_v be_v consider_v in_o a_o more_o general_a way_n for_o as_o to_o the_o disposition_n that_o particular_a body_n have_v of_o be_v dissolve_v in_o or_o of_o resist_v determinate_a liquor_n it_o be_v much_o easy_a for_o i_o to_o enlarge_v upon_o that_o subject_a than_o it_o be_v to_o provide_v the_o instance_n above_o recite_v and_o these_o be_v not_o so_o few_o but_o that_o it_o be_v hope_v they_o may_v suffice_v to_o make_v it_o probable_a that_o in_o the_o relation_n betwixt_o a_o solvent_a and_o the_o body_n it_o be_v to_o work_v upon_o that_o which_o depend_v upon_o the_o mechanical_a affection_n of_o one_o or_o both_o be_v much_o to_o be_v consider_v and_o have_v a_o great_a interest_n in_o the_o operation_n of_o one_o of_o the_o body_n upon_o the_o other_o finis_fw-la of_o the_o mechanical_a cause_n of_o chemical_a precipitation_n by_o the_o honourable_a robert_n boyle_n esq_n fellow_n of_o the_o r._n society_n london_n print_v by_o e._n flesher_n for_o r._n davis_n bookseller_n in_o oxford_n 1675._o advertisement_n though_o i_o shall_v not_o deny_v that_o in_o grammatical_a strictness_n precipitation_n shall_v be_v reckon_v among_o chemical_a operation_n not_o quality_n yet_o i_o do_v not_o much_o scruple_n to_o insert_v the_o follow_a discourse_n among_o the_o note_n about_o particular_a quality_n because_o many_o if_o not_o most_o of_o the_o phaenomena_n mention_v in_o the_o ensue_a essay_n may_v be_v consider_v as_o depend_v some_o of_o they_o
though_o there_o be_v both_o acid_n and_o alcalizate_a salt_n yet_o i_o do_v not_o find_v that_o either_o acid_a spirit_n or_o oil_n of_o tartar_n or_o even_o spirit_n of_o urine_n will_v precipitate_v the_o dissolve_a substance_n and_o i_o have_v observe_v both_o that_o salt_n of_o a_o contrary_a nature_n will_v precipitate_v body_n out_o of_o the_o same_o menstruum_fw-la as_o not_o only_a salt_n of_o tartar_n but_o sea-salt_n be_v dissolve_v will_v precipitate_v each_o other_o and_o each_o of_o they_o apart_o will_v precipitate_v silver_n out_o of_o aqua_fw-la fortis_fw-la and_o that_o even_o where_o there_o be_v a_o confess_a contrariety_n betwixt_o two_o liquor_n it_o may_v be_v so_o order_v that_o neither_o of_o they_o shall_v precipitate_v what_o be_v dissolve_v by_o the_o other_o of_o which_o i_o shall_v have_v occasion_n to_o give_v ere_o long_o a_o remarkable_a instance_n but_o it_o will_v best_o appear_v that_o the_o abovemention_v theory_n of_o the_o peripatetic_n and_o 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least_o the_o associate_v particle_n of_o the_o dissolve_a body_n too_o heavy_a to_o be_v sustain_v or_o too_o bulky_a to_o be_v keep_v in_o a_o state_n of_o fluidity_n by_o the_o liquor_n that_o in_o many_o precipitation_n there_o be_v make_v a_o coalition_n betwixt_o the_o small_a part_n of_o the_o precipitant_n and_o those_o of_o the_o dissolve_a metal_n or_o other_o body_n and_o frequent_o also_o with_o the_o saline_a spirit_n of_o the_o menstruum_fw-la may_v be_v easy_o show_v by_o the_o weight_n of_o the_o precipitate_v which_o though_o careful_o wash_v and_o dry_v often_o surpass_v and_o sometime_o very_o considerable_o that_o of_o your_o crude_a metal_n that_o be_v dissolve_v of_o which_o we_o late_o give_v a_o instance_n in_o aurum_fw-la fulminans_fw-la and_o precipitate_v silver_n &_o we_o may_v yet_o give_v a_o more_o conspicuous_a one_o in_o that_o which_o chemist_n call_v luna_n cornea_n for_o if_o have_v dissolve_v silver_n in_o good_a aqua_fw-la fortis_fw-la you_o precipitate_v it_o with_o the_o solution_n of_o sea-salt_n in_o fair_a water_n and_o from_o the_o very_a white_a precipitate_v wash_v the_o loose_a adhere_a salt_n the_o remain_a powder_n be_v dry_v and_o slow_o melt_v will_v look_v much_o less_o like_o a_o metalline_a body_n than_o like_o a_o piece_n of_o horn_n whence_o also_o it_o take_v its_o name_n so_o considerable_a be_v the_o additament_n of_o the_o saline_a to_o the_o metalline_a particle_n and_o that_o part_n of_o such_o additament_n be_v retain_v may_v not_o only_o be_v find_v by_o weigh_v but_o in_o divers_a case_n may_v be_v argue_v from_o what_o be_v obvious_a to_o the_o eye_n as_o if_o you_o dissolve_v mercury_n in_o aqua_fw-la fortis_fw-la and_o into_o the_o philtrated_a solution_n drop_v spirit_n of_o salt_n or_o salt-water_n or_o a_o urinous_a spirit_n as_o of_o sal_fw-la ammoniac_a you_o will_v have_v a_o very_a white_a precipitate_v but_o if_o instead_o of_o any_o of_o these_o you_o drop-in_a deliquated_a salt_n of_o tartar_n your_o precipitate_v will_n be_v of_o a_o brick_n or_o orange_n colour_n from_o which_o experiment_n and_o some_o other_o i_o will_v glad_o take_v a_o rise_n to_o persuade_v chemist_n and_o physician_n that_o it_o be_v not_o so_o indifferent_a as_o those_o seem_v to_o think_v who_o look_v on_o precipitation_n butas_fw-la a_o kind_n of_o comminution_n by_o what_o mean_v the_o precipitation_n be_v perform_v for_o by_o reason_n of_o the_o strict_a adhesion_n of_o divers_a saline_a particle_n of_o the_o precipitant_n and_o the_o solvent_a the_o precipitate_v body_n notwithstanding_o all_o the_o wont_a ablution_n may_v have_v its_o quality_n much_o diversify_v by_o those_o of_o the_o particle_n of_o the_o liquor_n when_o these_o be_v fit_v to_o stick_v very_o fast_o to_o it_o which_o last_o word_n i_o add_v because_o though_o that_o sometime_o happen_v yet_o it_o do_v not_o always_o there_o be_v a_o geat_a difference_n than_o every_o body_n take_v notice_n of_o between_o precipitation_n as_o you_o will_v be_v induce_v to_o think_v if_o you_o precipitate_v the_o solution_n of_o silver_n with_o copper_n with_o spirit_n of_o sal_fw-la ammoniac_a with_o salt_n water_n with_o oil_n of_o tartar_n with_o quicksilver_n with_o crude_a tartar_n and_o with_o zink_n and_o in_o the_o late_o propose_a example_n you_o will_v think_v it_o probable_a that_o it_o be_v not_o all_o one_o whether_o to_o dissolve_a mercury_n or_o silver_n you_o employ_v the_o subtle_a distil_a spirit_n of_o salt_n or_o the_o gross_a body_n whether_o in_o a_o dry_a form_n or_o bare_o dissolve_v in_o common_a water_n and_o thus_o much_o of_o the_o conduciveness_n of_o weight_n to_o the_o strike_v down_o the_o corpuscle_n of_o a_o dissolve_a body_n that_o also_o the_o bulk_n of_o a_o body_n may_v very_o much_o contribute_v to_o make_v it_o sink_v or_o swim_v in_o a_o liquor_n appear_v by_o obvious_a instance_n thus_o salt_n or_o sugar_n be_v put_v into_o water_n either_o in_o lump_n or_o even_o in_o powder_n that_o be_v but_o gross_a fall_v at_o first_o to_o the_o bottom_n and_o lie_v there_o notwithstanding_o the_o air_n that_o may_v be_v intercept_v between_o its_o part_n or_o external_o adhere_v to_o it_o but_o when_o by_o the_o infinuate_a action_n of_o the_o water_n it_o be_v dissolve_v into_o minute_n particle_n these_o be_v carry_v up_o and_o down_o with_o those_o of_o the_o liquor_n and_o subside_o not_o the_o like_a happen_v when_o a_o piece_n of_o silver_n be_v cast_v into_o aqua_fw-la fortis_fw-la and_o in_o many_o other_o case_n on_o the_o other_o side_n i_o have_v several_a time_n observe_v that_o some_o body_n that_o have_v long_o swim_v in_o a_o menstruum_fw-la whilst_o their_o minute_n part_n be_v keep_v from_o convening_n in_o it_o do_v afterward_o by_o the_o coalition_n of_o many_o of_o those_o particle_n into_o body_n of_o a_o visible_a bulk_n coagulate_a and_o subside_o though_o sometime_o to_o hinder_v the_o evaporation_n of_o
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 the_o texture_n of_o the_o salt_n of_o tartar_n or_o other_o body_n do_v peculiar_o dispose_v it_o to_o detain_v they_o since_o i_o have_v find_v by_o trial_n that_o shall_v ammoniac_a dissolve_v iu._n in_o water_n though_o boil_v up_o with_o a_o brisk_a fire_n to_o a_o dry_a salt_n will_v upon_o its_o be_v again_o dissolve_v in_o water_n not_o produce_v any_o heat_n but_o a_o very_a considerable_a degree_n of_o cold._n i_o shall_v add_v that_o though_o one_o will_v expect_v a_o great_a cognation_n between_o the_o particle_n of_o fire_n adhere_v to_o quicklime_n and_o those_o of_o high_a rectify_a spirit_n of_o wine_n which_o be_v of_o so_o igneous_a a_o nature_n as_o to_o be_v total_o inflammable_a yet_o i_o have_v not_o find_v that_o the_o affusion_n of_o alkaol_n of_o wine_n upon_o quicklime_n will_v produce_v any_o sensible_a incalescence_n or_o any_o visible_a dissolution_n or_o dissipation_n of_o the_o lime_n as_o common_a water_n will_v have_v do_v though_o it_o seem_v 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 there_o than_o if_o 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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 nall_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 there_o appear_v not_o
copious_a diffusion_n of_o the_o part_n of_o one_o body_n through_o those_o of_o another_o whereby_o both_o be_v confuse_o tumble_v and_o put_v into_o a_o calorific_a motion_n or_o from_o this_o that_o the_o part_n of_o the_o dissolve_a body_n come_v to_o be_v every_o way_n in_o great_a number_n violent_o scatter_v or_o from_o the_o fierce_a and_o confuse_a shock_n or_o justling_n of_o the_o corpuscle_n of_o the_o conflict_a body_n or_o mass_n which_o may_v be_v suppose_v to_o have_v the_o motion_n of_o their_o part_n differ_o modify_v according_o to_o their_o respective_a nature_n or_o from_o this_o that_o by_o the_o plentiful_a ingress_n of_o the_o corpuscle_n of_o the_o one_o into_o the_o almost_o commensurate_a part_n of_o the_o other_o the_o motion_n of_o some_o etherial_a matter_n that_o be_v wont_n before_o swift_o to_o permeate_n the_o distinct_a body_n come_v to_o be_v check_v and_o disturb_v and_o force_v to_o either_o brandish_n or_o whirl_v about_o the_o part_n in_o a_o 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by_o its_o reaction_n so_o intense_a a_o heat_n that_o the_o heat_v emergent_a upon_o such_o a_o mixture_n may_v be_v very_o great_a when_o the_o quantity_n of_o the_o mingle_a liquor_n be_v considerable_o so_o may_v be_v easy_o conclude_v from_o one_o of_o my_o memorial_n wherein_o i_o find_v that_o no_o more_o than_o two_o ounce_n of_o oil_n of_o vitriol_n be_v pour_v but_o not_o all_o at_o once_o into_o four_o ounce_n only_o of_o distil_a rain-water_n make_v and_o keep_v it_o manifest_o warm_a for_o a_o pretty_a deal_n above_o a_o hour_n and_o during_o no_o small_a part_n of_o that_o time_n keep_v it_o so_o hot_a that_o it_o be_v troublesome_a to_o be_v handle_v exper._n fourteen_o the_o former_a experiment_n bring_v into_o my_o mind_n one_o that_o i_o mention_v without_o teach_v it_o in_o the_o history_n of_o cold_a and_o it_o appear_v very_o surprise_v to_o those_o that_o know_v not_o the_o ground_n of_o it_o for_o have_v sometime_o merry_o propose_v to_o heat_v cold_a liquor_n with_o ice_n the_o undertake_n seem_v extravagant_a if_o not_o impossible_a but_o be_v easy_o perform_v by_o take_v out_o of_o a_o basin_n of_o cold_a water_n wherein_o divers_a fragment_n of_o ice_n be_v swim_v one_o or_o two_o piece_n that_o i_o perceive_v be_v well_o drench_v with_o the_o liquor_n and_o immerse_v they_o sudden_o into_o a_o wide-mouthed_a glass_n wherein_o strong_a oil_n of_o vitriol_n have_v be_v put_v for_o this_o menstruum_fw-la present_o mingle_v with_o the_o water_n that_o adhere_v to_o the_o ice_n produce_v in_o it_o a_o brisk_a heat_n and_o that_o sometime_o with_o a_o manifest_a smoke_n which_o nimble_o dissolve_v the_o contiguous_a part_n of_o ice_n and_o those_o the_o next_o and_o so_o the_o whole_a ice_n be_v speedy_o reduce_v to_o water_n and_o the_o corrosive_n menstruum_fw-la be_v by_o two_o or_o three_o shake_n well_o disperse_v through_o it_o and_o mingle_v with_o it_o the_o whole_a mixture_n will_v grow_v in_o a_o trice_n so_o hot_a that_o sometime_o the_o vial_n that_o contain_v it_o be_v not_o to_o be_v endure_v in_o one_o hand_n exper._n xv._n notwithstanding_o the_o vast_a difference_n betwixt_o common_a water_n and_o high_a rectify_a spirit_n of_o wine_n whereof_o man_n general_o take_v the_o former_a for_o the_o most_o contrary_a body_n to_o fire_n and_o whereof_o the_o chemist_n take_v the_o late_a to_o be_v but_o a_o kind_n of_o liquid_a sulphur_n since_o it_o may_v present_o be_v all_o reduce_v into_o flame_n yet_o as_o i_o expect_v i_o find_v upon_o trial_n that_o oil_n of_o vitriol_n be_v mingle_v with_o pure_a spirit_n of_o wine_n will_v as_o well_o grow_v hot_a as_o with_o common_a water_n nor_o do_v this_o experiment_n always_o require_v great_a quantity_n of_o the_o liquor_n for_o when_o i_o take_v but_o one_o ounce_n of_o strong_a oil_n of_o vitriol_n though_o i_o put_v to_o it_o less_o than_o half_a a_o ounce_n of_o choice_a spirit_n of_o wine_n yet_o those_o two_o be_v light_o shake_v together_o do_v in_o a_o trice_n conceive_v so_o brisk_a a_o heat_n that_o they_o almost_o fill_v the_o vial_n with_o fume_n and_o make_v it_o so_o hot_a thar_z i_o have_v unaware_o like_a to_o have_v burn_v my_o hand_n with_o it_o before_o i_o can_v lay_v it_o aside_o i_o make_v the_o like_a trial_n with_o the_o same_o corrosive_a menstruum_fw-la and_o common_a aqua_fw-la aquavitae_fw-la buy_v at_o a_o strong-water-shop_n by_o the_o mixture_n of_o which_o liquor_n heat_n be_v produce_v in_o the_o vial_n that_o i_o can_v not_o well_o endure_v the_o like_a success_n i_o have_v in_o a_o experiment_n wherein_o oil_n of_o vitriol_n be_v mix_v with_o common_a brandy_n save_v that_o in_o this_o the_o heat_n produce_v seem_v not_o so_o intense_a as_o in_o the_o former_a trial_n which_o itself_o afford_v not_o so_o fierce_a a_o heat_n as_o that_o which_o be_v make_v with_o rectify_a spirit_n of_o wine_n exper._n xvi_o those_o chemist_n who_o conceive_v that_o all_o the_o incalescency_n of_o body_n upon_o their_o be_v mix_v proceed_v from_o their_o antipathy_n or_o hostility_n will_v not_o perhaps_o expect_v that_o the_o part_n of_o the_o same_o body_n either_o numerical_o or_o in_o specie_fw-la as_o the_o school_n phrase_n it_o shall_v and_o that_o without_o manifest_a conflict_n grow_v very_o hot_a together_o and_o yet_o have_v for_o trial_n sake_n put_v two_o ounce_n of_o colcothar_n so_o strong_o calcine_v that_o it_o be_v burn_v almost_o to_o blackness_n into_o a_o retort_n we_o pour_v upon_o it_o two_o ounce_n of_o strong_a oil_n of_o english_a vitriol_n and_o find_v that_o after_o about_o a_o minute_n of_o a_o hour_n they_o begin_v to_o grow_v so_o hot_a that_o i_o can_v not_o endure_v to_o hold_v my_o hand_n to_o the_o bottom_n of_o the_o vessel_n to_o which_o the_o mixture_n give_v a_o heat_n that_o continue_v sensible_a on_o the_o outside_n for_o between_o twenty_o and_o thirty_o minute_n exper._n xvii_o though_o i_o have_v not_o observe_v any_o liquor_n to_o equal_a oil_n of_o vitriol_n in_o the_o number_n of_o liquor_n with_o which_o it_o will_v grow_v hot_a yet_o i_o have_v not_o meet_v with_o any_o liquor_n wherewith_o it_o come_v to_o a_o great_a incalescence_n than_o it_o frequent_o enough_o do_v with_o common_a oil_n of_o turpentine_n for_o when_o we_o cause_v divers_a ounce_n of_o each_o to_o be_v well_o shake_v together_o in_o a_o strong_a vessel_n fasten_v to_o prevent_v mischief_n to_o the_o end_n of_o a_o pole_n or_o staff_n the_o ebullition_n be_v great_a and_o fierce_a enough_o to_o be_v not_o underserved_o admire_v by_o the_o spectator_n and_o this_o bring_v into_o my_o mind_n a_o pleasant_a adventure_n afford_v by_o these_o liquor_n of_o each_o of_o which_o have_v for_o the_o production_n of_o heat_n and_o other_o purpose_n cause_v a_o good_a bottle_n full_a to_o be_v put_v up_o with_o other_o thing_n into_o
couple_n of_o imperfection_n that_o more_o particular_o relate_v to_o the_o doctrine_n of_o quality_n and_o first_o i_o do_v not_o think_v it_o a_o convince_v argument_n that_o be_v wont_a to_o be_v employ_v by_o the_o aristotelian_o for_o their_o element_n as_o well_o as_o by_o the_o chemist_n for_o their_o principle_n that_o because_o this_o or_o that_o quality_n which_o they_o ascribe_v to_o a_o element_n or_o a_o principle_n be_v find_v in_o this_o or_o that_o body_n which_o they_o call_v mix_v therefore_o it_o must_v owe_v that_o quality_n to_o the_o participation_n of_o that_o principle_n or_o element_n for_o the_o same_o texture_n of_o part_n or_o other_o modification_n of_o matter_n may_v produce_v the_o like_a quality_n in_o the_o more_o simple_a and_o the_o more_o compound_a body_n and_o they_o may_v both_o separately_z derive_v it_o from_o the_o same_o cause_n and_o not_o one_o from_o the_o participation_n of_o the_o other_o so_o water_n and_o earth_n and_o metal_n and_o 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ask_v whence_o it_o become_v total_o inflammable_a they_o must_v tell_v you_o from_o the_o fire_n and_o yet_o the_o whole_a body_n at_o least_o as_o far_o as_o sense_n can_v discover_v be_v fluid_a and_o the_o whole_a body_n become_v flame_n and_o then_o be_v most_o fluid_a of_o all_o so_o that_o fire_n and_o water_n as_o contrary_a as_o they_o make_v they_o must_v both_o be_v by_o vast_a odds_o predominant_a in_o the_o same_o body_n this_o spirit_n of_o wine_n also_o be_v a_o liquor_n who_o least_o part_n that_o be_v sensible_a be_v actual_o heavy_a and_o compose_v a_o liquor_n which_o be_v seven_o or_o eight_o hundred_o time_n as_o heavy_a as_o air_n of_o the_o same_o bulk_n which_o yet_o experience_n show_v not_o to_o be_v devoid_a of_o weight_n must_v be_v suppose_v to_o abound_v with_o earthy_a particle_n and_o yet_o this_o spirituous_a liquor_n may_v in_o a_o trice_n become_v flame_n which_o they_o will_v have_v to_o be_v the_o light_a body_n in_o the_o world_n but_o to_o enlarge_v on_o this_o subject_n will_v be_v to_o forget_v that_o the_o design_n of_o this_o tract_n engage_v i_o to_o deal_v not_o with_o the_o peripatetic_a school_n but_o the_o spagyrical_n to_o which_o i_o shall_v therefore_o return_v and_o give_v you_o this_o advertisement_n about_o it_o that_o what_o i_o have_v hitherto_o object_v be_v mean_v against_o the_o more_o common_a and_o receive_a doctrine_n about_o the_o material_a principle_n of_o body_n repute_v mix_v as_o it_o be_v wont_n by_o vulgar_a chemist_n to_o be_v apply_v to_o the_o render_v a_o account_n of_o the_o quality_n of_o substance_n corporeal_a and_o therefore_o i_o pretend_v not_o that_o the_o past_a objection_n shall_v conclude_v against_o other_o chemical_a theory_n than_o that_o which_o i_o be_v concern_v to_o question_v and_o if_o adept_v philosopher_n suppose_v there_o be_v such_o or_o any_o other_o more_o than_o ordinary_o intelligent_a spagyrist_n shall_v propose_v any_o particular_a hypothesis_n differ_v from_o those_o that_o i_o have_v question_v as_o their_o doctrine_n and_o reason_n be_v not_o yet_o know_v to_o i_o so_o i_o pretend_v not_o that_o the_o past_a argument_n shall_v conclude_v against_o they_o and_o be_o willing_a to_o think_v that_o person_n advantage_v with_o such_o peculiar_a opportunity_n to_o dive_v into_o the_o mystery_n of_o nature_n will_v be_v able_a to_o give_v we_o if_o they_o shall_v please_v a_o far_o better_a account_n of_o the_o quality_n of_o body_n than_o what_o be_v wont_a to_o be_v propose_v by_o the_o generality_n of_o chemist_n thus_o dear_a pyrophilus_n i_o have_v lay_v before_o you_o some_o of_o the_o chief_a imperfection_n i_o have_v observe_v in_o the_o vulgar_a chemist_n doctrine_n of_o quality_n and_o consequent_o i_o have_v give_v you_o some_o of_o the_o chief_a reason_n that_o hinder_v i_o from_o acquiesce_v in_o it_o and_o as_o my_o objection_n be_v not_o take_v from_o the_o scholastical_a subtlety_n nor_o the_o doubtful_a speculation_n of_o the_o peripatetic_n or_o other_o adversary_n of_o the_o hermetick_n philosophy_n but_o from_o the_o nature_n of_o thing_n and_o from_o chemical_a experiment_n themselves_o so_o i_o hope_v if_o any_o of_o your_o spagyrical_a friend_n have_v a_o mind_n to_o convince_v i_o he_o will_v attempt_v to_o do_v it_o by_o the_o most_o proper_a way_n which_o be_v by_o actual_o give_v we_o clear_a and_o particular_a explication_n at_o least_o of_o the_o grand_a phaenomena_n of_o quality_n which_o if_o he_o shall_v do_v he_o will_v find_v i_o very_o ready_a to_o acquiesce_v in_o a_o truth_n that_o come_v usher_v in_o and_o endear_v by_o so_o acceptable_a and_o useful_a a_o thing_n as_o a_o philosophical_a theory_n of_o quality_n finis_fw-la reflection_n upon_o the_o hypothesis_n of_o alcali_n and_o acidum_fw-la by_o the_o honourable_a robert_n boyle_n esq_n fellow_n of_o the_o r._n society_n london_n print_v by_o e._n flesher_n for_o r._n davis_n bookseller_n in_o oxford_n 1675._o though_o the_o 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the_o cold_a whereas_o when_o the_o oil_n of_o vitriol_n be_v excite_v by_o a_o convenient_a heat_n which_o be_v not_o faint_a it_o corrode_v the_o mercury_n into_o a_o fine_a white_a calx_fw-la or_o powder_n which_o by_o the_o affusion_n of_o fair_a water_n will_v be_v present_o turn_v into_o a_o yellowish_a calx_fw-la of_o the_o colour_n and_o nature_n of_o a_o turbith_n i_o remember_v also_o that_o have_v for_o trial_n sake_n dissolve_v in_o a_o weak_a spirit_n of_o salt_n a_o four_o part_n of_o its_o weight_n of_o fine_a crystal_n of_o nitre_n we_o find_v that_o it_o will_v not_o in_o the_o cold_a at_o least_o during_o a_o good_a while_n that_o we_o wait_v for_o its_o operation_n dissolve_v leaf-gold_n but_o when_o the_o menstruum_fw-la be_v a_o little_a heat_v at_o the_o fire_n the_o solution_n proceed_v ready_o enough_o and_o in_o some_o case_n though_o the_o external_a heat_n be_v but_o small_a yet_o there_o may_v intervene_v a_o brisk_a heat_n and_o much_o cooperate_v in_o 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the_o sublimate_n be_v suffer_v to_o lie_v on_o and_o if_o you_o aim_v only_o at_o a_o legible_a impression_n a_o few_o minute_n of_o a_o hour_n as_o four_o or_o five_o may_v serve_v the_o turn_n exper._n vi_o this_o bring_v into_o my_o mind_n a_o observation_n i_o have_v sometime_o have_v occasion_n to_o make_v that_o i_o find_v more_o useful_a than_o common_a and_o it_o be_v that_o divers_a body_n whether_o distil_v or_o not_o distil_v that_o be_v not_o think_v capable_a of_o dissolve_v other_o body_n because_o in_o moderate_a degree_n of_o heat_n they_o will_v not_o work_v on_o they_o may_v yet_o by_o intense_a degree_n of_o heat_n be_v bring_v to_o be_v fit_a solvent_n for_o they_o to_o which_o purpose_n i_o remember_v that_o have_v a_o distil_a liquor_n which_o be_v rather_o sweet_a to_o the_o taste_n than_o either_o acid_n lixiviate_v or_o urinous_a though_o for_o that_o reason_n it_o seem_v unfit_a to_o work_v on_o pearl_n and_o according_o do_v not_o dissolve_v they_o in_o a_o considerable_a time_n wherein_o they_o be_v keep_v with_o it_o in_o a_o more_o than_o ordinary_o warm_a digestion_n yet_o the_o glass_n be_v for_o many_o hour_n amount_v perhaps_o to_o some_o day_n keep_v in_o such_o a_o heat_n of_o sand_n as_o make_v the_o liquor_n boil_v we_o have_v a_o dissolution_n of_o pearl_n that_o unite_n with_o the_o menstruum_fw-la make_v it_o a_o very_a valuable_a liquor_n and_o though_o the_o solvent_n of_o crude_a gold_n wont_a to_o be_v employ_v by_o chemist_n be_v general_o distil_v liquor_n that_o be_v acid_a and_o in_o the_o late_o mention_v solvent_a make_v of_o crude_a salt_n and_o common_a water_n acidity_n seem_v to_o be_v the_o predominant_a quality_n which_o make_v the_o use_n of_o solution_n make_v in_o aqua_fw-la regius_fw-la etc._n etc._n suspect_v by_o many_o physician_n and_o chemist_n yet_o fit_o choose_v alcalizate_a body_n themselves_o as_o repugnant_a as_o they_o use_v to_o be_v to_o acid_n without_o the_o help_n of_o any_o liquor_n 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