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 stone_n etc._n etc._n be_v heavy_a upon_o the_o account_n of_o the_o common_a cause_n of_o gravity_n and_o not_o because_o the_o rest_n partake_v of_o the_o earth_n as_o may_v appear_v in_o elementary_a water_n which_o be_v as_o simple_a a_o body_n as_o it_o and_o yet_o be_v heavy_a so_o water_n and_o oil_n and_o exact_o deflegm_v spirit_n of_o wine_n and_o mercury_n and_o also_o metal_n and_o glass_n of_o antimony_n and_o minium_n or_o calcine_v lead_n while_o these_o three_o be_v in_o fusion_n be_v fluid_a be_v make_v so_o by_o the_o various_o determine_a motion_n of_o their_o minute_n part_n and_o other_o cause_n of_o fluidity_n and_o not_o by_o the_o participation_n of_o water_n since_o the_o arid_a calces_fw-la of_o lead_n and_o antimony_n be_v not_o like_a to_o have_v retain_v in_o the_o fire_n so_o volatile_a a_o liquor_n as_o water_n and_o since_o fluidity_n be_v a_o quality_n that_o mercury_n enjoy_v in_o a_o more_o durable_a manner_n than_o water_n itself_o for_o that_o metalline_a liquor_n as_o also_o spirit_n of_o wine_n well_o rectify_v will_v not_o be_v bring_v to_o freeze_v with_o the_o high_a degree_n of_o cold_a of_o our_o sharp_a winter_n though_o a_o far_o less_o degree_n of_o cold_a will_v make_v water_n cease_v to_o be_v fluid_a and_o turn_v it_o into_o ice_n to_o this_o i_o shall_v only_o add_v in_o the_o second_o place_n that_o it_o be_v not_o unpleasant_a to_o see_v how_o arbitrary_o the_o peripatetic_n derive_v the_o quality_n of_o body_n from_o their_o four_o element_n as_o if_o to_o give_v a_o instance_n in_o the_o late_o name_v quality_n liquidity_n you_o show_v they_o exact_o deflegm_v spirit_n of_o wine_n and_o ask_v they_o whence_o it_o have_v its_o great_a fluidness_n they_o will_v tell_v you_o from_o water_n which_o yet_o be_v far_o less_o fluid_a than_o it_o and_o this_o spirit_n of_o wine_n itself_o be_v much_o less_o so_o than_o the_o flame_n into_o which_o the_o spirit_n of_o wine_n be_v easy_o resoluble_a but_o if_o you_o 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 follow_a discourse_n be_v at_o first_o write_v by_o way_n of_o appendix_n to_o the_o treatise_n of_o the_o imperfection_n of_o the_o chemical_a doctrine_n of_o quality_n yet_o the_o bulk_n of_o it_o swell_v beyond_o what_o be_v foresee_v make_v it_o seem_v expedient_a to_o publish_v it_o as_o a_o tract_n by_o itself_o reflection_n upon_o the_o hypothesis_n of_o alcali_n and_o acidum_fw-la chap._n i._n i_o presume_v it_o will_v not_o be_v difficult_a to_o discern_v that_o much_o of_o what_o have_v be_v say_v about_o the_o imperfection_n of_o the_o vulgar_a chemical_a doctrine_n concern_v quality_n may_v with_o easy_a variation_n be_v apply_v to_o some_o other_o hypothesis_n that_o be_v of_o kin_n to_o that_o doctrine_n and_o particular_o to_o their_o theory_n that_o will_v derive_v both_o the_o quality_n of_o body_n and_o the_o rest_n of_o the_o phaenomena_n of_o nature_n from_o what_o they_o call_v acidum_fw-la and_o alcali_n for_o though_o these_o two_o difference_n may_v be_v meet_v with_o in_o a_o great_a number_n and_o variety_n of_o body_n and_o consequent_o the_o consideration_n of_o they_o may_v frequent_o enough_o be_v of_o good_a use_n especial_o to_o spagyrist_n and_o physician_n when_o they_o be_v conversant_a about_o the_o secondary_a and_o if_o i_o may_v so_o call_v they_o chemical_a cause_n and_o operation_n of_o divers_a mix_v body_n yet_o i_o confess_v i_o can_v acquiesce_v in_o this_o hypothesis_n of_o alkali_n and_o acidum_fw-la in_o the_o latitude_n wherein_o i_o find_v it_o urge_v and_o apply_v by_o the_o admirer_n of_o it_o as_o if_o it_o can_v be_v useful_o substitute_v in_o the_o place_n of_o matter_n and_o motion_n the_o hypothesis_n be_v in_o a_o sort_n subordinate_a to_o that_o of_o the_o tria_fw-la prima_fw-la in_o ascribe_v to_o two_o contrary_a saline_a principle_n what_o vulgar_a chemist_n do_v to_o their_o salt_n sulphur_n and_o mercury_n most_o of_o the_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
experiment_n note_n etc._n etc._n about_o the_o mechanical_a origine_fw-la or_o production_n of_o divers_a particular_a quality_n among_o which_o be_v insert_v a_o discourse_n of_o the_o imperfection_n of_o the_o chymist_n doctrine_n of_o quality_n together_o with_o some_o 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 1676._o the_o publisher_n to_o the_o reader_n to_o keep_v the_o reader_n from_o be_v at_o all_o surprise_v at_o the_o date_n of_o the_o title-page_n i_o must_v inform_v he_o that_o a_o good_a part_n of_o the_o ensue_a tract_n be_v print_v off_o and_o in_o my_o custody_n the_o last_o year_n and_o the_o rest_n have_v come_v out_o with_o they_o divers_a month_n ago_o if_o the_o noble_a author_n have_v not_o be_v hinder_v from_o commit_v they_o to_o the_o press_n by_o the_o desire_n and_o 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have_v ascribe_v to_o they_o what_o indeed_o flow_v from_o their_o coordination_n and_o contrivance_n chap._n vii_o the_o last_o defect_n i_o observe_v in_o the_o chemical_a doctrine_n of_o quality_n be_v that_o in_o many_o case_n it_o agree_v not_o well_o with_o the_o phaenomena_n of_o nature_n and_o that_o by_o one_o or_o both_o of_o these_o way_n first_o there_o be_v divers_a change_n of_o quality_n wherein_o one_o may_v well_o expect_v that_o a_o chemical_a principle_n shall_v have_v a_o great_a stroke_n and_o yet_o it_o do_v not_o at_o all_o appear_v to_o have_v so_o he_o that_o consider_v what_o great_a operation_n divers_a of_o the_o hermetick_n ascribe_v to_o this_o or_o that_o hypostatical_a principle_n and_o how_o many_o quality_n according_a to_o they_o must_v from_o it_o be_v derive_v can_v scarce_o do_v other_o than_o expect_v that_o a_o great_a change_n as_o to_o those_o quality_n happen_v in_o a_o mix_a body_n shall_v at_o least_o be_v accompany_v with_o some_o notable_a action_n of_o or_o alteration_n in_o the_o principle_n and_o yet_o i_o have_v meet_v with_o many_o instance_n wherein_o quality_n be_v produce_v or_o abolish_v or_o very_o much_o alter_v without_o any_o manifest_a introduction_n expulsion_n or_o considerable_a change_n of_o the_o principle_n whereon_o that_o quality_n be_v say_v to_o depend_v or_o perhaps_o of_o either_o of_o the_o two_o other_o as_o when_o a_o piece_n of_o fine_a silver_n that_o have_v be_v neald_v in_o the_o fire_n and_o suffer_v to_o cool_v leisurely_o be_v very_o flexible_a be_v make_v stiff_a and_o hard_o to_o bend_v bare_o by_o a_o few_o stroke_n of_o a_o hammer_n and_o a_o string_n of_o a_o lute_n acquire_v or_o lose_v a_o sympathy_n as_o they_o call_v it_o with_o another_o string_n of_o the_o same_o or_o another_o instrument_n bare_o by_o be_v either_o stretch_v so_o as_o to_o make_v a_o unison_n with_o it_o or_o screw_v up_o or_o let_v down_o beyond_o or_o beneath_o that_o degree_n of_o tension_n to_o multiply_v instance_n of_o this_o kind_n will_v be_v to_o anticipate_v those_o you_o will_v hereafter_o meet_v with_o in_o their_o due_a place_n and_o therefore_o i_o shall_v pass_v on_o from_o the_o first_o sort_n of_o phaenomena_n that_o favour_n not_o the_o chemical_a hypothesis_n about_o quality_n to_o the_o other_o which_o consist_v of_o those_o wherein_o either_o that_o do_v not_o happen_v which_o according_a to_o their_o hypothesis_n ought_v to_o happen_v or_o the_o contrary_n happen_v to_o what_o according_a to_o their_o hypothesis_n may_v just_o be_v expect_v of_o this_o you_o will_v meet_v with_o instance_n hereafter_o i_o shall_v now_o trouble_v you_o but_o with_o one_o the_o better_a to_o declare_v my_o meaning_n it_o be_v not_o unknown_a to_o those_o chemist_n that_o work_n much_o in_o silver_n and_o in_o copper_n that_o the_o former_a will_v endure_v ignition_n and_o become_v red-hot_a in_o the_o fire_n before_o it_o will_v be_v bring_v to_o fusion_n and_o the_o latter_a be_v yet_o far_o more_o difficult_a to_o be_v melt_v down_o than_o the_o other_o yet_o if_o you_o separately_z dissolve_v those_o two_o metal_n in_o aqua_fw-la fortis_fw-la and_o by_o evaporation_n reduce_v they_o to_o crystall_n these_o will_v be_v bring_v to_o fusion_n in_o a_o very_a little_a time_n and_o with_o a_o very_a moderate_a heat_n without_o break_v the_o glass_n that_o contain_v they_o if_o you_o ask_v a_o vulgar_a chemist_n the_o cause_n of_o this_o facility_n of_o fusion_n he_o will_v probable_o tell_v you_o without_o scruple_n that_o it_o be_v from_o the_o saline_a part_n of_o the_o aqua_fw-la fortis_fw-la which_o be_v embody_a in_o the_o metal_n and_o of_o a_o very_a fusible_a nature_n impart_v that_o easiness_n of_o fusion_n to_o the_o metal_n they_o be_v mix_v with_o according_a to_o which_o plausible_a explication_n one_o may_v well_o expect_v that_o if_o the_o saline_a corpuscle_n be_v exquisite_o mingle_v with_o tin_n they_o will_v make_v it_o far_o more_o fusible_a than_o of_o itself_o it_o be_v and_o yet_o as_o i_o have_v elsewhere_o note_v when_o i_o put_v tin_n into_o a_o convenient_a quantity_n of_o aqua_fw-la fortis_fw-la the_o metal_n be_v corrode_v subside_v as_o be_v usual_a in_o the_o form_n of_o white_n of_o egg_n which_o be_v well_o dry_v the_o tinn_n be_v so_o far_o from_o be_v grow_v more_o fusible_a by_o the_o addition_n of_o the_o saline_a particle_n of_o the_o menstruum_fw-la that_o whereas_o it_o be_v know_v that_o simple_a tin_n will_v melt_v long_o before_o it_o come_v to_o be_v red-hot_a this_o prepare_a tin_n will_v endure_v for_o a_o good_a while_n not_o only_o a_o thorough_a ignition_n but_o the_o blast_n of_o a_o pair_n of_o double_a bellows_o which_o we_o usual_o employ_v to_o melt_v silver_n and_o copper_n itself_o without_o be_v at_o all_o bring_v to_o fusion_n and_o as_o for_o those_o spagyrist_n that_o admit_v as_o most_o of_o they_o be_v grant_v to_o do_v that_o all_o kind_n of_o metal_n may_v be_v turn_v into_o gold_n by_o a_o very_a small_a proportion_n of_o what_o they_o call_v the_o philosopher_n elixir_n one_o may_v i_o think_v show_v they_o from_o their_o own_o concession_n that_o divers_a quality_n may_v be_v change_v even_o in_o such_o constant_a body_n as_o metal_n without_o the_o addition_n of_o any_o considerable_a proportion_n of_o the_o simple_a ingredient_n to_o which_o they_o be_v wont_n to_o ascribe_v those_o quality_n provide_v the_o agent_n as_o a_o efficient_a rather_o than_o as_o a_o material_a cause_n be_v able_a to_o make_v a_o great_a change_n in_o the_o mechanical_a affection_n of_o the_o part_n whereof_o the_o metal_n it_o act_v on_o be_v make_v up_o thus_o if_o we_o suppose_v a_o pound_n of_o silver_n a_o pound_n of_o lead_n and_o a_o pound_n of_o iron_n to_o be_v transmute_v into_o gold_n each_o by_o a_o grain_n of_o the_o powder_n of_o projection_n this_o ting_a powder_n as_o a_o material_a cause_n be_v inconsiderable_a by_o reason_n of_o the_o smaliness_n of_o its_o bulk_n and_o as_o a_o efficient_a cause_n it_o work_v differ_v and_o even_o contrary_a effect_n according_a to_o the_o disposition_n wherein_o it_o find_v the_o metal_n to_o be_v transmute_v and_o the_o change_v it_o produce_v in_o the_o constituent_a texture_n of_o it_o thus_o it_o bring_v quicksilver_n to_o be_v fix_v which_o it_o be_v not_o before_o and_o deprive_v it_o of_o the_o fluidity_n which_o it_o have_v before_o it_o bring_v silver_n to_o be_v indissolvable_a in_o aqua_fw-la fortis_fw-la which_o ready_o dissolve_v it_o before_o and_o dissoluble_a in_o aqua_fw-la regis_fw-la which_o before_o will_v not_o touch_v it_o and_o which_o be_v very_o considerable_a to_o our_o present_a purpose_n whereas_o it_o make_v iron_n much_o more_o susible_a than_o mars_n it_o make_v lead_n much_o less_o fusible_a than_o while_o it_o retain_v its_o pristine_a form_n since_o saturn_n melt_v ere_o it_o come_v to_o ignition_n which_o gold_n require_v to_o bring_v it_o to_o fusion_n but_o this_o be_v propose_v only_o as_o a_o argument_n ad_fw-la hominem_fw-la till_o the_o truth_n of_o the_o transmutation_n of_o metal_n into_o gold_n by_o way_n of_o projection_n be_v sufficient_o prove_v and_o the_o circumstance_n and_o phaenomena_fw-la of_o it_o particular_o declare_v i_o must_v not_o forget_v to_o take_v notice_n that_o some_o learned_a modern_a chemist_n will_v be_v think_v to_o explicate_v divers_a of_o the_o change_n that_o happen_v to_o body_n in_o point_n of_o odour_n colour_n etc._n etc._n by_o say_v that_o in_o such_o alteration_n the_o sulphur_n or_o other_o hypostatical_a principle_n be_v intravert_v or_o extravert_v or_o as_o other_o speak_v invert_v but_o i_o confess_v to_o i_o these_o seem_v to_o be_v rather_o new_a term_n then_o real_a explication_n for_o to_o omit_v divers_a of_o the_o argument_n mention_v in_o this_o present_a treatise_n that_o may_v be_v apply_v to_o this_o way_n of_o solve_v the_o phaenomena_n of_o quality_n one_o may_v just_o object_n that_o the_o suppose_a extraversion_n or_o intraversion_n of_o sulphur_n can_v by_o no_o mean_n reach_v to_o give_v a_o account_n of_o so_o great_a a_o variety_n of_o odour_n colour_n and_o other_o quality_n as_o may_v be_v find_v in_o the_o change_a portion_n of_o matter_n we_o be_v speak_v of_o and_o which_o be_v more_o what_o they_o call_v by_o these_o and_o the_o like_a name_n can_v be_v do_v without_o local_a motion_n transpose_v the_o particle_n of_o the_o matter_n and_o consequent_o produce_v in_o it_o a_o change_n of_o texture_n which_o be_v the_o very_a thing_n we_o will_v infer_v and_o which_o be_v suppose_v we_o may_v grant_v sulphur_n to_o be_v oftentimes_o actual_o present_a in_o the_o alter_a body_n without_o allow_v it_o to_o be_v always_o necessary_a to_o produce_v the_o alteration_n in_o they_o since_o corpuscle_n so_o condition_v and_o contex_v will_v perform_v such_o effect_n whether_o
in_o close_a vessel_n be_v make_v to_o carry_v over_o with_o it_o some_o of_o the_o lead_n as_o we_o clear_o find_v by_o the_o increase_a weight_n of_o the_o quicksilver_n that_o pass_v into_o the_o receiver_n which_o by_o the_o way_n may_v make_v we_o cautious_a how_o we_o conclude_v quicksilver_n to_o be_v pure_a mere_o from_o its_o have_v be_v distil_v over_o there_o remain_v but_o one_o body_n more_o heavy_a than_o those_o i_o come_v from_o name_v and_o that_o be_v gold_n which_o be_v also_o of_o a_o fixity_n so_o great_a that_o it_o be_v indeed_o admirable_a i_o do_v not_o wonder_v that_o not_o only_o the_o more_o wary_a naturalist_n but_o the_o more_o severe_a among_o the_o chemist_n themselves_o shall_v think_v it_o incapable_a of_o be_v volatilise_v but_o yet_o if_o we_o consider_v how_o very_a minute_n part_v gold_n may_v be_v rational_o suppose_v to_o consist_v of_o and_o to_o be_v divisible_a into_o i_o think_v it_o shall_v not_o seem_v impossible_a that_o if_o man_n can_v light_v on_o volatile_a salt_n endow_v with_o figure_n fit_a to_o stick_v fast_o to_o the_o corpuscle_n of_o the_o gold_n they_o will_v carry_v up_o with_o they_o body_n who_o solidity_n can_v scarce_o be_v more_o extraordinary_a than_o their_o minuteness_n be_v and_o in_o effect_n we_o have_v make_v more_o than_o one_o menstruum_fw-la with_o which_o some_o particle_n of_o gold_n may_v be_v carry_v up_o but_o when_o i_o employ_v that_o which_o i_o recommend_v to_o you_o former_o under_o the_o name_n of_o menstruum_fw-la peracutum_fw-la which_o consist_v main_o and_o sometime_o only_o of_o spirit_n of_o nitre_n several_a time_n draw_v from_o butter_n of_o antimony_n i_o be_v able_a without_o a_o very_a violent_a fire_n in_o a_o few_o hour_n to_o elevate_v so_o much_o crude_a gold_n as_o in_o the_o neck_n of_o the_o retort_n afford_v i_o a_o considerable_a quantity_n of_o sublimate_n which_o i_o have_v have_v red_a as_o blood_n and_o who_o consist_v partly_o of_o gold_n manifest_o appear_v by_o this_o that_o i_o be_v able_a with_o ease_n to_o reduce_v that_o metal_n out_o of_o it_o in_o reckon_v up_o the_o instrument_n of_o volatilization_n we_o must_v not_o quite_o leave_v out_o the_o mention_n of_o the_o air_n which_o i_o have_v often_o observe_v to_o facilitate_v the_o elevation_n of_o some_o body_n even_o in_o close_a vessel_n wherein_o though_o to_o fill_v they_o too_o full_o be_v judge_v by_o many_o a_o compendious_a practice_n because_o the_o steam_n have_v a_o less_o way_n to_o ascend_v yet_o experience_n have_v several_a time_n inform_v i_o that_o at_o least_o in_o some_o case_n they_o take_v wrong_a measure_n and_o that_o to_o pass_v by_o another_o cause_n of_o their_o disappointment_n a_o large_a proportion_n of_o air_n purposely_o leave_v in_o the_o vessel_n may_v more_o than_o compensate_a the_o great_a space_n that_o be_v to_o be_v ascend_v by_o the_o vapour_n or_o exhalation_n of_o the_o matter_n that_o be_v to_o be_v distil_v or_o sublime_v and_o if_o in_o close_a vessel_n the_o presence_n of_o the_o air_n may_v promote_v the_o ascension_n of_o body_n it_o may_v well_o be_v expect_v that_o the_o elevation_n of_o divers_a of_o they_o may_v be_v further_v by_o be_v attempt_v in_o open_a vessel_n to_o which_o the_o air_n have_v free_a access_n and_o if_o we_o may_v give_v any_o credit_n to_o the_o probable_a relation_n of_o some_o chemist_n the_o air_n do_v much_o contribute_v to_o the_o volatilization_n of_o some_o body_n that_o be_v bare_o though_o indeed_o for_o no_o short_a time_n expose_v to_o it_o but_o the_o account_n on_o which_o the_o air_n by_o its_o bare_a presence_n or_o peculiar_a operation_n conduce_v to_o the_o volatilization_n of_o some_o body_n be_v a_o thing_n very_o difficult_a to_o be_v determine_v without_o have_v recourse_n to_o some_o notion_n about_o gravity_n and_o levity_n and_o of_o the_o constitution_n of_o the_o corpuscle_n that_o compose_v the_o air_n which_o i_o take_v to_o be_v both_o very_a numerous_a and_o no_o less_o various_a and_o therefore_o i_o must_v not_o in_o these_o occasional_a note_n launch_v out_o into_o such_o a_o subject_a though_o for_o fear_n i_o shall_v be_v blame_v for_o too_o much_o slight_v my_o old_a acquaintance_n the_o air_n i_o dare_v not_o quite_o omit_v the_o power_n it_o have_v to_o dispose_v some_o body_n to_o volatility_n a_o moderate_a attention_n may_v suffice_v to_o make_v it_o be_v discern_v that_o in_o what_o have_v be_v hitherto_o deliver_v i_o have_v for_o the_o most_o part_n consider_v the_o small_a portion_n of_o matter_n to_o be_v elevate_v in_o volatilization_n as_o entire_a corpuscle_n and_o therefore_o it_o may_v be_v now_o pertinent_a to_o intimate_v in_o a_o line_n or_o two_o that_o there_o may_v be_v also_o case_n wherein_o a_o kind_n of_o volatilization_n improper_o so_o call_v may_v be_v effect_v by_o make_v use_n of_o such_o additament_n as_o break_v off_o or_o otherwise_o divide_v the_o particle_n of_o the_o corpuscle_n to_o be_v elevate_v and_o by_o adhere_v to_o and_o so_o clog_a one_o of_o the_o particle_n to_o which_o it_o prove_v more_o congruous_a enable_v the_o other_o which_o be_v now_o bring_v to_o be_v more_o light_a or_o disengage_v to_o ascend_v this_o may_v be_v illustrate_v by_o what_o happen_v when_o sal_fw-la ammoniac_a be_v well_o ground_n with_o lapis_n calaminaris_n or_o with_o some_o fix_a alkali_n and_o then_o commit_v to_o distillation_n for_o the_o sea-salt_n that_o enter_v the_o composition_n of_o the_o shall_v ammoniac_a be_v detain_v by_o the_o stone_n or_o the_o alkali_n there_o be_v a_o divorce_n make_v between_o the_o common_a salt_n and_o the_o urinous_a and_o fuliginous_a salt_n that_o be_v incorporate_v with_o it_o and_o be_v now_o disengage_v from_o it_o be_v easy_o elevate_v i_o elsewhere_o mention_n that_o i_o have_v observe_v in_o man_n urine_n a_o kind_n of_o native_a sal_fw-la ammoniac_a much_o less_o volatile_a than_o the_o fugitive_n that_o be_v sublime_v from_o man_n blood_n hartshorn_n etc._n etc._n and_o therefore_o suppose_v that_o a_o separation_n of_o part_n may_v be_v make_v by_o a_o alkali_n as_o well_o in_o this_o salt_n as_o in_o the_o common_a factitious_a sal_fw-la ammoniac_a i_o put_v to_o fresh_a urine_n a_o convenient_a proportion_n which_o be_v a_o plentiful_a one_o of_o salt_n of_o pot-ash_n that_o be_v then_o at_o hand_n and_o distil_v the_o liquor_n it_o yield_v according_a to_o expectation_n a_o spirit_n more_o volatile_a than_o the_o phlegm_n and_o of_o a_o very_a pierce_a taste_n which_o way_n of_o obtain_v a_o spirit_n without_o any_o violence_n of_o fire_n and_o without_o either_o previous_o abstract_v the_o phlegm_n as_o we_o be_v fain_o to_o do_v in_o fresh_a urine_n or_o tedious_o wait_v for_o the_o fermentation_n of_o stale_a urine_n i_o teach_v some_o chemist_n because_o of_o the_o usefulness_n of_o spirit_n of_o urine_n which_o be_v obtain_v this_o innocent_a way_n will_v probable_o be_v employ_v with_o much_o less_o suspicion_n of_o corrosiveness_n than_o if_o in_o the_o operation_n i_o have_v make_v use_n of_o quicklime_n another_o illustration_n of_o what_o i_o be_v not_o long_o since_o say_v may_v be_v fetch_v from_o the_o experiment_n of_o make_v spirit_n of_o nitre_n by_o mix_v saltpetre_n with_o oil_n of_o vitriol_n and_o distil_v they_o together_o for_o the_o oil_n do_v so_o divide_v or_o break_v the_o corpuscle_n of_o the_o nitre_n that_o the_o now-disposed_n particle_n of_o that_o salt_n which_o amount_v to_o a_o great_a portion_n of_o the_o whole_a will_v be_v make_v easy_o enough_o to_o ascend_v even_o with_o a_o moderate_a fire_n of_o sand_n and_o sometime_o without_o any_o fire_n at_o all_o in_o the_o form_n of_o spirit_n exceed_v unquiet_a subtle_a and_o apt_a to_o moak_v away_o to_o which_o instance_n of_o this_o imperfect_a kind_n of_o volatilization_n more_o may_v be_v add_v but_o that_o you_o may_v well_o think_v i_o have_v detain_v you_o but_o too_o long_o already_o with_o indigested_a note_n about_o one_o quality_n chap._n vii_o the_o last_o mean_n of_o volatilize_a body_n be_v the_o operation_n of_o the_o fire_n or_o some_o other_o actual_a heat_n but_o of_o this_o which_o be_v obvious_a it_o will_v be_v superfluous_a to_o discourse_v only_o this_o i_o shall_v intimate_v that_o there_o may_v be_v body_n which_o in_o such_o degree_n of_o fire_n as_o be_v wont_a to_o be_v give_v in_o the_o vulgar_a operation_n of_o chemist_n will_v not_o be_v elevate_v which_o yet_o may_v be_v force_v up_o by_o such_o violent_a and_o last_a fire_n as_o be_v employ_v by_o the_o melter_n of_o oar_n and_o founder_n of_o gun_n and_o sometime_o by_o glass-maker_n and_o on_o this_o consideration_n i_o shall_v here_o observe_v to_o you_o since_o i_o do_v not_o do_v it_o at_o my_o entrance_n on_o these_o note_n that_o chemist_n be_v wont_a to_o
upon_o a_o power_n that_o certain_a body_n have_v to_o cause_n precipitation_n and_o some_o upon_o such_o a_o disposition_n to_o be_v strike_v down_o by_o other_o as_o may_v if_o man_n please_v be_v call_v precipitability_n and_o so_o these_o differ_a affection_n may_v with_o at_o least_o tolerable_a congruity_n be_v refer_v to_o those_o that_o we_o have_v elsewhere_o style_v chemical_a quality_n but_o though_o i_o hope_v i_o may_v in_o these_o few_o line_n have_v say_v enough_o concern_v the_o name_n give_v to_o these_o attribute_n yet_o perhaps_o it_o will_v be_v find_v in_o time_n that_o the_o thing_n themselves_o may_v deserve_v a_o large_a discourse_n than_o my_o little_a leisure_n will_v allow_v they_o for_o that_o be_v not_o a_o causeless_a intimation_n of_o the_o importance_n of_o the_o subject_n wherewith_o i_o conclude_v the_o follow_a tract_n since_o beside_o that_o many_o more_o instance_n may_v have_v be_v particular_o refer_v to_o the_o head_n treat_v of_o in_o the_o ensue_a essay_n there_o be_v improper_a kind_n of_o precipitation_n beside_o those_o mention_v in_o the_o former_a part_n of_o the_o discourse_n to_o which_o one_o may_v not_o incongruous_o refer_v divers_a of_o the_o phaenomena_n of_o nature_n as_o well_o in_o the_o great_a as_o in_o the_o lesser_a world_n whereof_o either_o no_o cause_n at_o all_o or_o but_o improper_a one_o be_v wont_n to_o be_v give_v and_o beside_o the_o simple_a spirit_n and_o salt_n usual_o employ_v by_o chemist_n there_o be_v many_o compound_v and_o decompound_v body_n not_o only_o factitious_a but_o natural_a and_o some_o such_o as_o one_o will_v scarce_o suspect_v that_o may_v in_o congruous_a subject_n produce_v such_o precipitation_n as_o i_o speak_v of_o and_o the_o phaenomena_n and_o consequent_n of_o such_o operation_n may_v in_o divers_a case_n prove_v conducive_a both_o to_o the_o discovery_n of_o physical_a cause_n and_o the_o production_n of_o useful_a effect_n though_o the_o particularise_v of_o such_o phaenomena_n do_v rather_o belong_v to_o a_o history_n of_o precipitation_n than_o to_o such_o a_o discourse_n as_o that_o which_o follow_v wherein_o i_o propose_v not_o so_o much_o to_o deliver_v the_o latent_fw-la mystery_n as_o to_o investigate_v the_o mechanical_a cause_n of_o precipitation_n of_o the_o mechanical_a cause_n of_o chemical_a precipitation_n chap._n i._n by_o precipitation_n be_v here_o mean_v such_o a_o agitation_n or_o motion_n of_o a_o heterogeneous_a liquor_n as_o in_o no_o long_a time_n make_v the_o part_n of_o it_o subside_o and_o that_o usual_o in_o the_o form_n of_o a_o powder_n or_o other_o consistent_a body_n as_o on_o many_o occasion_n chemist_n call_v the_o substance_n that_o be_v make_v to_o fall_v to_o the_o bottom_n of_o the_o liquor_n the_o precipitate_v so_o for_o brevity_n sake_n we_o shall_v call_v the_o body_n that_o be_v put_v into_o the_o liquor_n to_o procure_v that_o subside_v the_o precipitant_n as_o also_o that_o which_o be_v to_o be_v strike_v down_o the_o precipitable_a substance_n or_o matter_n and_o the_o liquor_n wherein_o it_o swim_v before_o the_o separation_n the_o menstruum_fw-la or_o solvent_a when_o a_o hasty_a fall_n of_o a_o heterogeneous_a body_n be_v procure_v by_o a_o precipitant_n the_o operation_n be_v call_v precipitation_n in_o the_o proper_a or_o strict_a sense_n but_o when_o the_o separation_n be_v make_v without_o any_o such_o addition_n or_o the_o substance_n separate_v from_o the_o fluid_a part_n of_o the_o liquor_n instead_o of_o subside_v emerge_n than_o the_o word_n be_v use_v in_o a_o more_o comprehensive_a but_o less_o proper_a acceptation_n as_o for_o the_o cause_n of_o precipitation_n the_o very_a name_n itself_o in_o its_o chemical_a sense_n have_v be_v scarce_o hear_v of_o in_o the_o peripatetic_a school_n it_o be_v not_o to_o be_v expect_v that_o they_o shall_v have_v give_v a_o account_n of_o the_o reason_n of_o the_o thing_n and_o it_o be_v like_a that_o those_o few_o aristotelian_o that_o have_v by_o their_o converse_n with_o the_o laboratory_n or_o write_n of_o chemist_n take_v notice_n of_o this_o operation_n will_v according_a to_o their_o custom_n on_o such_o occasion_n have_v recourse_n for_o the_o explication_n of_o it_o to_o some_o secret_a sympathy_n or_o antipathy_n between_o the_o body_n who_o action_n and_o reaction_n intervene_v in_o this_o operation_n but_o if_o this_o be_v the_o way_n propose_v of_o account_v for_o it_o i_o shall_v quick_o have_v occasion_n to_o say_v somewhat_o to_o it_o in_o consider_v the_o way_n propose_v by_o the_o chemist_n who_o be_v wont_a to_o refer_v precipitation_n either_o as_o be_v most_o usual_a to_o a_o sympathy_n betwixt_o the_o precipitate_v body_n and_o the_o menstruum_fw-la which_o make_v the_o solvent_a run_v to_o the_o embrace_n of_o the_o precipitant_n and_o so_o let_v fall_v the_o particle_n of_o the_o body_n sustain_v before_o or_o with_o other_o to_o a_o great_a antipathy_n or_o contrariety_n between_o the_o acid_a salt_n of_o the_o menstruum_fw-la and_o the_o fix_a salt_n of_o the_o oil_n or_o solution_n of_o calcine_v tartar_n which_o be_v the_o most_o general_a and_o usual_a precipitant_n they_o employ_v but_o i_o see_v not_o how_o either_o of_o these_o cause_n will_v either_o reach_v to_o all_o the_o phaenomena_n that_o have_v be_v exhibit_v or_o give_v a_o true_a account_n even_o of_o some_o of_o those_o to_o which_o it_o seem_v applicable_a for_o first_o in_o precipitation_n wherein_o what_o they_o call_v a_o sympathy_n between_o the_o liquor_n be_v suppose_v to_o produce_v the_o effect_n this_o admire_a sympathy_n do_v not_o in_o my_o apprehension_n evince_v such_o a_o mysterious_a occult_a quality_n as_o be_v presume_v but_o rather_o consist_v in_o a_o great_a congruity_n as_o to_o bigness_n shape_n motion_n and_o pore_n of_o the_o minute_n part_n between_o the_o menstruum_fw-la and_o the_o precipitant_n than_o between_o the_o same_o solvent_a and_o the_o body_n it_o keep_v before_o dissolve_v and_o though_o this_o sympathy_n right_o explain_v may_v be_v allow_v to_o have_v a_o interest_n in_o some_o such_o precipitation_n as_o let_v fall_v the_o dissolve_a body_n in_o its_o pristine_a nature_n and_o form_n and_o only_o reduce_v into_o minute_n powder_n yet_o i_o find_v not_o that_o in_o the_o generality_n of_o precipitation_n this_o doctrine_n will_v hold_v for_o in_o some_o that_o we_o have_v make_v of_o gold_n and_o silver_n in_o proper_a menstruum_n after_o the_o subside_v matter_n have_v be_v well_o wash_v and_o dry_v several_a precipitate_v of_o gold_n make_v some_o with_o oil_n of_o tartar_n which_o abound_v with_o a_o fix_a salt_n and_o be_v the_o usual_a precipitant_n and_o some_o with_o a_o urinous_a spirit_n which_o work_v by_o virtue_n of_o a_o salt_n high_o fugitive_a or_o volatile_a i_o find_v the_o powder_n to_o exceed_v the_o weight_n of_o the_o gold_n and_o silver_n i_o have_v put_v to_o dissolve_v and_o the_o eye_n itself_o sufficient_o discover_v such_o precipitate_v not_o to_o be_v mere_a metalline_a powder_n but_o composition_n who_o consist_v not_o as_o have_v be_v by_o some_o body_n suspect_v of_o the_o combine_a salt_n alone_o but_o of_o the_o metalline_a part_n also_o may_v be_v strong_o conclude_v not_o only_o from_o the_o ponderousness_n of_o divers_a of_o they_o in_o reference_n to_o their_o bulk_n but_o also_o manifest_o from_o the_o reduction_n of_o true_a malleable_a metal_n from_o several_a of_o they_o chap._n ii_o the_o other_o chemical_a way_n of_o explicate_a precipitation_n may_v in_o a_o right_a sense_n be_v make_v use_n of_o by_o a_o naturalist_n on_o some_o particular_a occasion_n but_o i_o think_v it_o much_o too_o narrow_a and_o defective_a as_o it_o be_v in_o a_o general_a way_n propose_v to_o be_v fit_a to_o be_v acquiesce_v in_o for_o first_o it_o be_v plain_a that_o it_o be_v not_o only_a salt_n of_o tartar_n and_o other_o fix_a alcaly_n that_o precipitate_v most_o body_n that_o be_v dissolve_v in_o acid_a menstruum_n as_o in_o make_v of_o aurum_fw-la fulminans_fw-la oil_n of_o tartar_n precipitate_v the_o gold_n out_o of_o aqua_fw-la regis_fw-la but_o acid_a liquor_n themselves_o do_v on_o many_o occasion_n no_o less_o powerful_o precipitate_v metal_n and_o other_o body_n out_o of_o one_o another_o thus_o spirit_n of_o salt_n as_o i_o have_v often_o try_v precipitate_v silver_n out_o of_o aqua_fw-la fortis_fw-la the_o corrosive_a spirit_n of_o nitre_n copious_o precipitate_v that_o white_a powder_n whereof_o they_o make_v bezoardicum_n minerale_fw-mi spirit_n or_o oil_n of_o sulphur_n make_v by_o a_o glass-bell_n precipitate_v coral_n pearl_n etc._n etc._n dissolve_v in_o spirit_n of_o vinegar_n as_o be_v know_v to_o many_o chemist_n who_o now_o use_v this_o oleum_fw-la sulphuris_fw-la per_fw-la campanam_fw-la to_o make_v the_o magistery_n of_o pearl_n etc._n etc._n for_o which_o vulgar_a chemist_n employ_v oleum_fw-la tartari_fw-la per_fw-la deliquium_fw-la i_o have_v sometime_o make_v a_o menstruum_fw-la wherein_o