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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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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
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 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represent_v as_o a_o thing_n that_o further_a experience_n may_v possible_o countenance_n because_o i_o have_v sometime_o find_v that_o the_o degree_n of_o the_o operation_n of_o cold_a have_v be_v much_o vary_v by_o latent_fw-la circumstance_n some_o body_n be_v more_o wrought_v upon_o and_o other_o less_o than_o be_v upon_o very_o probable_a ground_n expect_v and_o particular_o i_o remember_v that_o though_o oil_n of_o vitriol_n be_v one_o of_o the_o firy_a liquor_n that_o be_v yet_o know_v and_o do_v perform_v some_o of_o the_o operation_n of_o fire_n itself_o as_o we_o shall_v elsewhere_o have_v occasion_n to_o show_v and_o will_v thaw_v ice_n soon_o than_o spirit_n of_o wine_n or_o any_o other_o liquor_n as_o i_o have_v try_v yet_o have_v put_v about_o a_o pound_n or_o more_o by_o our_o estimate_n of_o choice_n rectify_v oil_n of_o vitriol_n into_o a_o strong_a glass-vial_n proportionable_a to_o it_o we_o find_v that_o except_o a_o little_a that_o be_v fluid_a at_o the_o top_n 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expand_n water_n it_o condense_n common_a oil_n but_o the_o next_o day_n i_o find_v to_o my_o wonder_n that_o not_o only_o the_o oil_n remain_v unfrozen_a by_o the_o sharp_a frost_n it_o have_v be_v expose_v to_o but_o that_o it_o have_v not_o its_o transparency_n trouble_v though_o it_o be_v know_v that_o oil_n will_v be_v bring_v to_o concrete_a and_o turn_v opacous_a by_o a_o far_o less_o degree_n of_o cold_a than_o be_v requisite_a to_o freeze_v water_n notwithstanding_o which_o this_o liquor_n which_o be_v lodge_v in_o a_o glass_n so_o thin_a that_o it_o be_v blow_v at_o the_o flame_n of_o a_o lamp_n continue_v fluid_a and_o diaphanous_a in_o very_o frosty_a weather_n so_o long_o till_o i_o lose_v the_o expectation_n of_o see_v it_o congeal_v or_o concrete_v and_o this_o bring_v into_o my_o mind_n that_o though_o camphire_n be_v as_o i_o former_o note_v reckon_v by_o many_o potential_o cold_a yet_o we_o keep_v some_o oil_n of_o it_o of_o our_o make_n wherein_o the_o whole_a body_n 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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 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acidum_fw-la do_v not_o in_o my_o apprehension_n perform_v what_o may_v be_v just_o expect_v from_o philosophical_a explication_n it_o be_v say_v indeed_o that_o the_o acidum_fw-la work_v on_o the_o alcali_n or_o this_o upon_o that_o produce_v the_o effect_n propose_v but_o that_o be_v only_o to_o tell_v we_o what_o be_v the_o agent_n that_o operate_v and_o not_o the_o manner_n of_o the_o operation_n or_o the_o mean_n and_o process_n whereby_o it_o produce_v the_o effect_n propose_v and_o it_o be_v this_o modus_fw-la that_o inquisitive_a naturalist_n chief_o desire_v to_o learn_v and_o if_o it_o be_v say_v that_o it_o be_v by_o the_o mutual_a hostility_n of_o the_o principle_n that_o the_o effect_n be_v produce_v it_o may_v be_v answer_v that_o beside_o that_o that_o hostility_n itself_o be_v not_o as_o we_o have_v just_a now_o observe_v a_o thing_n clear_a if_o so_o mucha_fw-mi s_o intelligible_a this_o be_v so_o general_a and_o indeterminate_a a_o way_n of_o explicate_a thing_n as_o 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think_v i_o can_v very_o well_o make_v those_o foresee_a objection_n appear_v groundless_a or_o unsatisfactory_a yet_o that_o can_v scarce_o be_v do_v without_o engage_v in_o controversy_n that_o will_v prove_v more_o tedious_a than_o i_o judge_v they_o necessary_a and_o yet_o although_o what_o i_o have_v say_v in_o this_o excursion_n be_v but_o a_o part_n of_o what_o i_o can_v say_v i_o will_v not_o be_v think_v to_o have_v forget_v what_o i_o intimate_v at_o the_o begin_n of_o it_o for_o though_o the_o reason_n i_o allege_v keep_v i_o from_o acquiesce_v in_o the_o doctrine_n of_o alcali_n and_o acidum_fw-la as_o it_o be_v propose_v under_o the_o notion_n of_o a_o philosophical_a hypothesis_n such_o as_o the_o cartesian_a or_o epicurean_a which_o be_v each_o of_o they_o allege_v by_o their_o embracer_n to_o be_v mechanical_a and_o of_o a_o very_a catholic_n extent_n yet_o i_o deny_v not_o that_o the_o consideration_n of_o the_o duelist_n or_o the_o two_o jar_a principle_n of_o alcali_n and_o acidum_fw-la may_v be_v of_o good_a use_n to_o spagyrist_n and_o physician_n as_o i_o elsewhere_o further_o declare_v nor_o do_v i_o pretend_v by_o the_o past_a discourse_n that_o question_n one_o doctrine_n of_o the_o chemist_n to_o beget_v a_o general_a contempt_n of_o their_o notion_n and_o much_o less_o of_o their_o experiment_n for_o the_o operation_n of_o chemistry_n may_v be_v misapply_v by_o the_o erroneous_a reason_n of_o the_o artist_n without_o cease_v to_o be_v themselves_o thing_n of_o great_a use_n as_o be_v applicable_a as_o well_o to_o the_o discovery_n or_o confirmation_n of_o solid_a theory_n as_o the_o production_n of_o new_a phaenomena_n and_o beneficial_a effect_n and_o though_o i_o think_v that_o many_o notion_n of_o paracelsus_n and_o helmont_n and_o some_o other_o eminent_a spagyrist_n be_v unsolid_a and_o not_o worthy_a the_o veneration_n that_o their_o admirer_n cherish_v
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
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 hope_n of_o be_v able_a in_o a_o short_a time_n to_o send_v they_o abroad_o more_o numerous_a and_o by_o his_o be_v hinder_v to_o do_v so_o partly_o by_o remove_n partly_o by_o the_o want_n of_o some_o paper_n that_o be_v odd_o lose_v or_o spoil_v and_o partly_o by_o the_o sickness_n of_o himself_o and_o divers_a of_o his_o near_a relation_n and_o some_o of_o these_o impediment_n do_v yet_o suppress_v what_o the_o author_n intend_v shall_v have_v make_v a_o part_n of_o the_o book_n which_o now_o he_o suffer_v to_o be_v publish_v without_o they_o though_o divers_a of_o his_o paper_n about_o some_o other_o particular_a quality_n have_v be_v write_v so_o long_o ago_o as_o to_o have_v lie_v for_o many_o year_n neglect_v among_o other_o of_o his_o old_a write_n which_o that_o he_o may_v have_v both_o leisure_n and_o health_n to_o review_v and_o fit_a for_o publication_n be_v the_o ardent_a wish_n of_o the_o sincere_a lover_n of_o real_a knowledge_n who_o have_v reason_n to_o look_v on_o it_o as_o no_o mean_a proof_n of_o his_o constant_a kindness_n to_o experimental_a philosophy_n that_o in_o these_o tract_n he_o persevere_fw-la in_o his_o course_n of_o free_o and_o candid_o communicate_v his_o experiment_n and_o observation_n to_o the_o public_a notwithstanding_o the_o liberty_n that_o have_v be_v too_o bold_o take_v to_o mention_v they_o as_o their_o own_o by_o some_o late_a writer_n as_o particular_o by_o the_o compiler_n of_o the_o treatise_n entitle_v polygraphice_v who_o in_o two_o chapter_n have_v allow_v himself_o to_o present_v his_o reader_n with_o alove_n fifty_o experiment_n take_v out_o of_o our_o author_n book_n of_o colour_n without_o own_v any_o one_o of_o they_o to_o he_o or_o so_o much_o as_o name_v he_o or_o his_o book_n in_o either_o of_o those_o chapter_n nor_o that_o i_o remember_v in_o any_o of_o the_o other_o nor_o do_v i_o think_v this_o practice_n justify_v by_o the_o confession_n make_v in_o the_o preface_n import_v that_o the_o compiler_n have_v take_v the_o particular_n he_o deliver_v from_o the_o write_n of_o other_o for_o this_o general_a and_o perfunctory_a acknowledgement_n neither_o do_v right_a to_o particular_a author_n nor_o by_o name_v they_o enable_v the_o reader_n to_o know_v whether_o the_o thing_n deliver_v come_v from_o person_n fit_a to_o be_v credit_v or_o not_o and_o therefore_o since_o it_o be_v but_o too_o likely_a that_o such_o concealment_n of_o the_o name_n if_o not_o usurpation_n of_o the_o labour_n of_o the_o benefactor_n to_o philosophy_n will_v prove_v much_o more_o forbid_v to_o many_o other_o to_o impart_v their_o experiment_n than_o as_o yet_o they_o have_v to_o our_o generous_a author_n it_o seem_v to_o be_v the_o interest_n of_o the_o commonwealth_n of_o learn_v open_o to_o discountenance_v so_o discourage_v a_o practice_n and_o to_o show_v that_o they_o do_v not_o think_v it_o fit_v that_o possessor_n of_o useful_a piece_n of_o knowledge_n shall_v be_v strong_o tempt_v to_o envy_v they_o to_o the_o public_a to_o the_o end_n only_o that_o a_o few_o compiler_n shall_v not_o be_v put_v upon_o so_o reasonable_a and_o easy_a a_o work_n as_o by_o a_o few_o word_n or_o name_n to_o show_v themselves_o just_a if_o not_o grateful_a but_o not_o to_o keep_v the_o reader_n any_o long_o from_o the_o perusal_n of_o these_o tract_n themselves_o i_o shall_v conclude_v with_o intimate_v only_o that_o what_o our_o author_n say_v in_o one_o of_o they_o concern_v the_o insufficiency_n of_o the_o chemical_a hypothesis_n for_o explain_v the_o effect_n of_o nature_n be_v not_o at_o all_o intend_a by_o he_o to_o derogate_v from_o the_o sober_a professor_n of_o chemistry_n or_o to_o discourage_v they_o from_o useful_a chemical_a operation_n forasmuch_o as_o i_o have_v the_o satisfaction_n some_o year_n since_o to_o see_v in_o the_o author_n hand_n a_o discourse_n of_o he_o about_o the_o usefulness_n of_o chemistry_n for_o the_o advancement_n of_o natural_a philosophy_n with_o which_o also_o it_o be_v hope_v he_o will_v ever_o long_o gratify_v the_o public_a advertisement_n relate_v to_o the_o follow_a treatise_n to_o obviate_v some_o misapprehension_n that_o may_v arise_v concern_v the_o ensue_a note_n about_o particular_a quality_n it_o may_v not_o be_v improper_a to_o add_v something_o in_o this_o place_n to_o what_o have_v be_v say_v in_o another_o 1â—â—1_n paper_n in_o reference_n to_o those_o note_n and_o consequent_o to_o premise_v to_o the_o particular_a experiment_n some_o few_o general_a advertisement_n about_o they_o and_o i._o we_o may_v consider_v that_o there_o may_v be_v three_o differ_a way_n of_o treat_v historical_o of_o particular_a quality_n for_o either_o one_o may_v in_o a_o full_a and_o methodical_a history_n prosecute_v the_o phaenomena_n or_o one_o may_v make_v a_o collection_n of_o various_a experiment_n and_o observation_n whence_o may_v be_v gather_v divers_a phaenomena_n to_o illustrate_v several_a but_o not_o all_o of_o the_o head_n or_o part_n of_o such_o a_o ample_a or_o methodical_a history_n or_o in_o the_o three_o place_n one_o may_n in_o a_o more_o confine_v way_n content_a one_o self_n to_o deliver_v such_o experiment_n and_o observation_n of_o the_o production_n or_o the_o destruction_n or_o change_n of_o this_o or_o that_o quality_n as_o be_v due_o reason_v on_o may_v suffice_v to_o show_v wherein_o the_o nature_n of_o that_o quality_n do_v consist_v especial_o in_o opposition_n to_o those_o erroneous_a conceit_n that_o have_v be_v entertain_v about_o it_o of_o the_o first_o of_o these_o three_o way_n of_o treat_v of_o a_o quality_n i_o pretend_v not_o to_o have_v give_v any_o complete_a example_n but_o you_o will_v find_v that_o i_o have_v begin_v such_o history_n in_o my_o specimens_n about_o fluidity_n and_o firmness_n and_o in_o the_o experiment_n observation_n etc._n etc._n that_o i_o have_v put_v together_o about_o cold._a the_o second_o sort_n of_o historical_a write_n i_o have_v give_v a_o instance_n of_o in_o my_o experiment_n about_o colour_n but_o in_o these_o ensue_a note_n the_o occasion_n i_o have_v to_o make_v they_o have_v oblige_v i_o chief_o to_o have_v a_o eye_n to_o the_o disproval_n of_o the_o error_n of_o the_o peripatetic_n and_o the_o chemist_n about_o they_o i_o hope_v i_o shall_v not_o be_v think_v to_o have_v fall_v very_o short_a in_o my_o attempt_n if_o i_o have_v here_o and_o there_o perform_v what_o may_v be_v require_v in_o the_o three_o way_n of_o write_v historical_o of_o a_o quality_n my_o present_a design_n be_v chief_o to_o give_v a_o intelligent_a and_o historical_a account_n of_o the_o possible_a mechanical_a origination_n not_o of_o the_o various_a phaenomena_n of_o the_o particular_a quality_n succinct_o mention_v in_o these_o note_n though_o my_o secondary_a end_n be_v to_o become_v a_o benefactor_n to_o the_o history_n of_o quality_n by_o provide_v material_n for_o myself_o or_o better_a architect_n i_o have_v not_o scruple_v to_o add_v to_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
gentleman_n that_o have_v new_o bring_v it_o from_o the_o west-indies_n i_o find_v it_o whilst_o it_o be_v fresh_a to_o have_v a_o fragrancy_n suitable_a to_o the_o name_n that_o be_v give_v it_o there_o be_v also_o a_o sort_n of_o rat_n in_o muscovy_n who_o skin_n whereof_o i_o have_v see_v several_a have_v a_o smell_n that_o have_v procure_v they_o the_o name_n of_o musk-rat_n to_o which_o i_o know_v not_o whether_o we_o may_v not_o add_v the_o mention_n of_o a_o certain_a sort_n of_o duck_n which_o some_o call_v musk-duck_n because_o at_o a_o certain_a season_n of_o the_o year_n if_o they_o be_v chafe_v by_o violent_a motion_n they_o will_v under_o the_o wing_n emit_v a_o musky_a in_o stead_n of_o a_o sweaty_a send_v which_o upon_o trial_n i_o perceive_v to_o be_v true_a on_o the_o other_o side_n i_o have_v know_v a_o certain_a wood_n grow_v in_o the_o indies_n which_o especial_o when_o the_o scent_n be_v excite_v by_o rub_v stink_v so_o rank_o and_o so_o like_o paracelsus_n 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large_a dunghill_n that_o be_v then_o in_o lincolns-inn-field_n when_o they_o come_v to_o a_o certain_a distance_n from_o it_o they_o be_v both_o of_o they_o surprise_v to_o meet_v with_o a_o very_a strong_a smell_n of_o musk_n occasion_v probable_o by_o a_o certain_a degree_n or_o a_o peculiar_a kind_n of_o putrefaction_n which_o each_o be_v for_o a_o while_o shy_a of_o take_v notice_n of_o for_o fear_v his_o companion_n shall_v have_v laugh_v at_o he_o for_o it_o but_o when_o they_o come_v much_o near_o the_o dunghill_n that_o please_a smell_n be_v succeed_v by_o a_o stink_n proper_a to_o such_o a_o heap_n of_o excrement_n this_o put_v i_o in_o mind_n of_o add_v that_o though_o the_o excrement_n of_o animal_n and_o particular_o their_o sweat_n be_v usual_o foetid_v yet_o that_o it_o be_v not_o the_o nature_n of_o a_o excrement_n but_o the_o constitution_n that_o usual_o belong_v to_o they_o make_v they_o so_o have_v seem_v probable_a to_o i_o upon_o some_o observation_n for_o not_o to_o mention_v what_o be_v relate_v of_o alexander_n the_o great_a i_o know_v a_o gentleman_n of_o a_o very_a happy_a temperature_n of_o body_n who_o sweat_n upon_o a_o critical_a examination_n wherein_o i_o make_v use_v also_o of_o a_o surprise_n i_o find_v to_o be_v fragrant_a which_o be_v confirm_v also_o by_o some_o learned_a man_n of_o my_o acquaintance_n and_o particular_o a_o physician_n that_o lie_v with_o he_o though_o civet_n usual_o pass_v for_o a_o perfume_n and_o as_o such_o be_v wont_a to_o be_v buy_v at_o a_o great_a rate_n yet_o it_o seem_v to_o be_v but_o a_o clammy_a excrement_n of_o the_o animal_n that_o afford_v it_o which_o be_v secrete_v into_o bag_n provide_v by_o nature_n to_o receive_v it_o and_o i_o the_o rather_o mention_v civet_n because_o it_o usual_o afford_v a_o phaenomenon_n that_o agree_v very_o well_o with_o the_o mechanical_a doctrine_n concern_v odour_n though_o it_o do_v not_o demonstrate_v it_o for_o when_o i_o have_v have_v the_o curiosity_n to_o visit_v divers_a of_o those_o civet_n cat_n as_o they_o call_v they_o though_o they_o have_v head_n like_a fox_n than_o cat_n i_o observe_v that_o a_o certain_a degree_n of_o laxity_n if_o i_o may_v so_o style_v it_o of_o the_o odorous_a atmosphere_n be_v requisite_a to_o make_v the_o smell_v fragrant_a for_o when_o i_o be_v near_o the_o cage_n where_o many_o of_o they_o be_v keep_v together_o or_o any_o great_a vessel_n full_a of_o civet_n the_o smell_n probable_o by_o the_o plenty_n and_o perhaps_o the_o over-brisk_a motion_n of_o the_o effluvia_fw-la be_v rather_o rank_a and_o offensive_a than_o agreeable_a whereas_o when_o i_o remove_v into_o the_o next_o room_n or_o to_o some_o other_o convenient_a distance_n the_o steam_n be_v less_o crowd_v and_o far_o from_o their_o fountain_n present_v themselves_o to_o my_o nostril_n under_o the_o notion_n of_o a_o perfume_n and_o not_o to_o dismiss_v this_o our_o eleven_o experiment_n without_o touch_v once_o more_o upon_o musk_n i_o shall_v 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silver_n or_o crystal_n or_o venetian_a talc_n or_o some_o other_o body_n that_o i_o elsewhere_o name_n &_o yet_o these_o body_n be_v endow_v with_o divers_a quality_n as_o the_o two_o former_a with_o fusibleness_n and_o malleability_n and_o all_o of_o they_o with_o weight_n and_o fixity_n so_o that_o in_o these_o and_o the_o like_a body_n whence_o chemist_n have_v not_o make_v it_o yet_o appear_v that_o their_o salt_n sulphur_n and_o mercury_n can_v be_v true_o and_o adequate_o separate_v it_o will_v scarce_o be_v other_o than_o precarious_a to_o derive_v the_o malleableness_n colour_n and_o other_o quality_n of_o such_o body_n from_o those_o principle_n under_o this_o head_n i_o consider_v also_o that_o a_o great_a part_n of_o the_o chemical_a doctrine_n of_o quality_n be_v bottom_v on_o or_o suppose_n beside_o their_o new_o question_a analysis_n by_o fire_n some_o other_o thing_n which_o as_o far_o as_o i_o know_v have_v not_o yet_o be_v well_o prove_v and_o i_o question_v whether_o 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derive_v true_o from_o this_o or_o that_o particular_a principle_n as_o salt_n for_o instance_n and_o mercury_n therefore_o it_o must_v needs_o be_v derivable_a from_o the_o three_o as_o sulphur_n this_o way_n of_o argue_v involve_v a_o far_a supposition_n than_o that_o new_o examine_v for_o it_o imply_v that_o every_o quality_n in_o a_o compound_a body_n must_v arise_v from_o some_o one_o of_o the_o tria_fw-la prima_fw-la whereas_o experience_n assure_v we_o that_o body_n may_v by_o composition_n obtain_v quality_n that_o be_v not_o to_o be_v find_v in_o any_o of_o the_o separate_a ingredient_n as_o we_o see_v in_o paint_v that_o though_o blue_a and_o yellow_a be_v neither_o of_o they_o green_a yet_o their_o mixture_n will_v be_v so_o and_o though_o no_o single_a sound_n will_v make_v a_o octave_n or_o diapason_n yet_o two_o sound_n who_o proportion_n be_v double_a will_v have_v a_o eight_o and_o tinn_n and_o copper_n melt_v and_o mingle_v together_o in_o a_o due_a proportion_n will_v make_v a_o bell-metal_n far_o more_o sonorous_a than_o either_o of_o they_o be_v before_o it_o be_v obvious_a enough_o for_o chemist_n themselves_o to_o observe_v that_o though_o lead_v be_v a_o insipid_a body_n and_o spirit_n of_o vinegar_n a_o very_a sharp_a one_o yet_o saccharum_n saturni_n that_o be_v compound_v out_o of_o these_o two_o have_v a_o sweetness_n that_o make_v it_o not_o ill_o deserve_v its_o name_n but_o this_o ill-grounded_a supposition_n of_o the_o chemist_n be_v extend_v far_o in_o a_o usual_a topic_n of_o they_o according_a to_o which_o they_o conclude_v that_o i_o know_v not_o how_o many_o quality_n as_o well_o manifest_a as_o occult_a must_v be_v explicate_v by_o their_o tria_fw-la prima_fw-la because_o they_o be_v not_o explicable_a by_o the_o four_o element_n of_o the_o peripatetic_n to_o make_v which_o argumentation_n valid_a it_o must_v be_v prove_v which_o i_o fear_v it_o will_v never_o be_v that_o there_o be_v no_o other_o way_n by_o which_o those_o quality_n may_v be_v explicate_v but_o by_o a_o determinate_a number_n of_o material_a principle_n whether_o four_o or_o three_o beside_o that_o till_o they_o have_v show_v that_o such_o quality_n may_v be_v intelligible_o explicate_v by_o their_o principle_n the_o objection_n will_v lie_v as_o strong_a for_o the_o aristotelian_o against_o they_o as_o for_o they_o against_o the_o aristotelian_o chap._n ii_o next_o i_o consider_v that_o there_o be_v divers_a quality_n even_o in_o mix_a body_n wherein_o it_o do_v not_o appear_v that_o the_o use_n of_o the_o chemical_a doctrine_n be_v necessary_a as_o for_o instance_n when_o pure_a gold_n be_v by_o heat_n only_o bring_v to_o fusion_n and_o consequent_o to_o the_o state_n of_o fluidity_n and_o upon_o the_o remission_n of_o that_o heat_n grow_v a_o solid_a and_o consistent_a body_n again_o what_o addition_n or_o expulsion_n or_o change_n of_o any_o of_o the_o tria_fw-la prima_fw-la do_v appear_v to_o be_v the_o cause_n of_o this_o change_n of_o consistence_n which_o be_v easy_a to_o be_v account_v for_o according_a to_o the_o mechanical_a way_n by_o the_o vehement_a agitation_n that_o the_o fire_n make_v of_o the_o minute_n part_n of_o the_o gold_n to_o bring_v it_o to_o fusion_n and_o the_o cohesion_n of_o those_o part_n by_o virtue_n of_o their_o gravity_n and_o fitness_n to_o adhere_v to_o one_o another_o when_o that_o agitation_n cease_v when_o venice_n glass_n be_v mere_o by_o be_v beat_v to_o powder_v deprive_v of_o its_o transparency_n and_o turn_v into_o a_o body_n opacous_a and_o white_a what_o need_n or_o use_v of_o the_o tria_fw-la prima_fw-la have_v we_o in_o the_o explication_n of_o this_o phaenomenon_n or_o of_o that_o other_o which_o occur_v when_o by_o bare_o melt_v down_o this_o white_a and_o opacous_a body_n it_o be_v deprive_v of_o its_o opacity_n and_o colour_n and_o become_v diaphanous_a and_o of_o this_o sort_n of_o instance_n you_o will_v meet_v with_o divers_a in_o the_o follow_a note_n about_o particular_a quality_n for_o which_o reason_n i_o shall_v forbear_v the_o mention_n of_o they_o here_o chap._n iii_o i_o observe_v too_o that_o the_o spagyrical_a doctrine_n of_o quality_n be_v insufficient_a and_o too_o narrow_a to_o reach_v to_o all_o the_o phaenomena_n or_o even_o to_o all_o the_o notable_a one_o that_o aught_o to_o be_v explicable_a by_o they_o and_o this_o insufficiency_n i_o find_v to_o be_v twofold_a for_o first_o there_o be_v divers_a quality_n of_o which_o chemist_n will_v not_o so_o much_o as_o attempt_v to_o give_v we_o explication_n and_o of_o other_o particular_a quality_n the_o explication_n such_o as_o they_o be_v that_o they_o give_v we_o be_v often_o very_o deficient_a and_o unsatisfactory_a and_o do_v not_o sometime_o so_o much_o as_o take_v notice_n of_o divers_a considerable_a phaenomena_n that_o belong_v to_o the_o quality_n whereof_o they_o pretend_v to_o give_v a_o account_n of_o which_o you_o will_v meet_v with_o divers_a instance_n in_o the_o ensue_a note_n and_o therefore_o i_o shall_v only_o to_o declare_v my_o meaning_n the_o better_a invite_v you_o to_o observe_v with_o i_o that_o though_o gold_n be_v the_o body_n they_o affect_v to_o be_v most_o conversant_a with_o yet_o it_o will_v be_v very_o hard_a to_o show_v how_o the_o specific_a weight_n of_o gold_n can_v be_v deduce_v from_o any_o or_o all_o of_o the_o three_o principle_n since_o mercury_n itself_o that_o be_v of_o body_n know_v to_o we_o the_o heavy_a next_z to_o gold_n be_v so_o much_o light_a than_o gold_n that_o whereas_o i_o have_v usual_o find_v mercury_n to_o be_v to_o a_o equal_a weight_n of_o water_n somewhat_o though_o little_a less_o than_o fourteen_o to_o one_o i_o find_v pure_a gold_n to_o be_v about_o nineteen_o time_n as_o heavy_a as_o so_o much_o water_n which_o will_v make_v it_o very_o difficult_a not_o to_o say_v impossible_a for_o they_o to_o explain_v how_o gold_n shall_v bare_o by_o participate_v of_o mercury_n which_o be_v a_o body_n much_o light_a than_o itself_o obtain_v that_o great_a specific_a gravity_n we_o find_v it_o to_o have_v for_o the_o two_o other_o hypostatical_a principle_n we_o know_v be_v far_o light_a than_o mercury_n and_o i_o think_v it_o will_v much_o puzzle_v the_o chemist_n to_o give_v we_o any_o example_n of_o a_o compound_a body_n that_o be_v specifical_o heavy_a than_o the_o heavy_a of_o the_o ingredient_n that_o it_o be_v make_v up_o of_o and_o this_o be_v the_o first_o kind_n of_o insufficiency_n i_o be_v take_v notice_n of_o in_o the_o chemical_a doctrine_n of_o quality_n the_o other_o be_v that_o there_o be_v several_a body_n which_o the_o most_o learned_a among_o themselves_o confess_v not_o to_o consist_v of_o their_o tria_fw-la prima_fw-la and_o yet_o be_v endow_v with_o quality_n which_o consequent_o be_v not_o in_o those_o subject_n to_o be_v explicate_v by_o the_o tria_fw-la prima_fw-la which_o be_v grant_v not_o to_o be_v
though_o i_o can_v say_v much_o by_o way_n of_o answer_n i_o shall_v now_o only_o observe_v that_o this_o argument_n be_v ground_v but_o upon_o a_o supposition_n and_o will_v be_v of_o no_o force_n if_o from_o the_o primary_n affection_n of_o body_n one_o may_v deduce_v any_o good_a mechanical_a explication_n of_o fusibility_n in_o the_o general_n without_o necessary_o suppose_v such_o a_o primigeneal_a sulphur_n as_o the_o chemist_n fancy_n or_o derive_v it_o from_o thence_o in_o other_o body_n and_o indeed_o since_o not_o only_a saltpetre_n sea_n salt_n vitriol_n and_o alum_n but_o salt_n of_o tartar_n and_o the_o volatile_a salt_n of_o urine_n be_v all_o of_o they_o fusible_a i_o do_v not_o well_o see_v how_o chemist_n can_v derive_v the_o fusibleness_n even_o of_o salt_n obtain_v by_o their_o own_o analysis_n such_o as_o salt_n of_o tartar_n and_o of_o urine_n from_o the_o participation_n of_o the_o sulphureous_a ingredient_n especial_o since_o if_o such_o a_o attempt_n shall_v be_v make_v it_o will_v overthrow_v the_o hypothesis_n of_o three_o simple_a body_n whereof_o they_o will_v have_v all_o mix_a one_o to_o be_v compound_v and_o still_o it_o will_v remain_v to_o be_v explicate_v upon_o what_o account_n the_o principle_n that_o be_v say_v to_o endow_v the_o other_o with_o such_o a_o quality_n come_v to_o be_v endow_v therewith_o itself_o for_o it_o be_v plain_a that_o a_o mass_n of_o sulphur_n be_v not_o a_o atomical_a or_o adamantine_a body_n but_o consist_v of_o a_o multitude_n of_o corpuscle_n of_o determinate_a figure_n and_o connect_v after_o a_o determinate_a manner_n so_o that_o it_o may_v be_v reasonable_o demand_v why_o such_o a_o convention_n of_o particle_n rather_o than_o many_o another_o that_o do_v not_o constitute_v a_o fusible_a body_n chap._n vi_o and_o this_o lead_v i_o to_o a_o further_a consideration_n which_o make_v i_o look_v upon_o the_o chemist_n explication_n as_o not_o deep_a and_o radical_a enough_o and_o it_o be_v this_o that_o when_o they_o tell_v we_o for_o instance_n that_o the_o fusibleness_n of_o body_n proceed_v from_o sulphur_n in_o case_n they_o say_v true_a they_o do_v but_o tell_v we_o what_o material_a ingredient_n it_o be_v that_o being_n mingle_v with_o and_o disperse_v through_o the_o other_o part_n of_o a_o body_n make_v it_o apt_a to_o melt_v but_o this_o do_v not_o intelligible_o declare_v what_o it_o be_v that_o make_v a_o portion_n of_o matter_n fusible_a and_o how_o the_o sulphureous_a ingredient_n introduce_v that_o disposition_n into_o the_o rest_n of_o the_o mass_n wherewith_o it_o be_v commix_v or_o unite_v and_o yet_o it_o be_v such_o explication_n as_o these_o that_o a_o inquisitive_a naturalist_n chief_o look_v after_o and_o which_o i_o therefore_o call_v philosophical_a and_o to_o show_v that_o there_o may_v be_v more_o fontal_n explication_n i_o shall_v only_o observe_v that_o not_o to_o wander_v from_o our_o present_a instance_n sulphur_n itself_o be_v fusible_a and_o therefore_o as_o i_o late_o intimate_v fusibility_n which_o be_v not_o the_o quality_n of_o one_o atom_n or_o particle_n but_o of_o a_o aggregate_v of_o particle_n ought_v itself_o to_o be_v account_v for_o in_o that_o principle_n before_o the_o fusibleness_n of_o all_o other_o body_n be_v derive_v from_o it_o and_o it_o will_v in_o the_o follow_a note_n appear_v that_o in_o sulphur_n itself_o that_o quality_n may_v be_v probable_o deduce_v from_o the_o convention_n of_o corpuscle_n of_o determinate_a shape_n and_o size_n contex_v or_o connect_v after_o a_o convenient_a manner_n and_o if_o either_o nature_n or_o art_n or_o chance_n shall_v bring_v together_o particle_n endow_v with_o the_o like_a mechanical_a affection_n and_o associate_v they_o after_o the_o like_a manner_n the_o result_a body_n will_v be_v fusible_a though_o the_o component_a particle_n have_v never_o be_v part_n of_o the_o chemist_n primordial_a sulphur_n and_o such_o particle_n so_o convening_n may_v perhaps_o 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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 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put_v among_o themselves_o or_o with_o those_o of_o the_o additament_n into_o a_o complicate_v state_n or_o entangle_v contexture_n this_o be_v the_o usual_a and_o principal_a way_n of_o produce_v fixity_n we_o shall_v dwell_v somewhat_o the_o long_a upon_o it_o and_o give_v instance_n of_o several_a degree_n of_o fixation_n for_o though_o they_o do_v not_o produce_v that_o quality_n in_o the_o strict_a acceptation_n of_o the_o word_n fixity_n yet_o it_o be_v useful_a in_o our_o present_a inquiry_n to_o take_v notice_n by_o what_o mean_v that_o volatility_n come_v to_o be_v gradual_o abate_v since_o that_o may_v facilitate_v our_o understanding_n how_o the_o volatility_n of_o a_o body_n come_v to_o be_v total_o abate_v and_o consequent_o the_o body_n to_o be_v fix_v chap._n iu._n and_o first_o we_o find_v that_o a_o fix_a additament_n if_o its_o part_n be_v convenient_o shape_v may_v easy_o give_v a_o degree_n of_o fixity_n to_o a_o very_a volatile_a body_n thus_o spirit_n of_o nitre_n 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and_o other_o sulphureous_a particle_n be_v drive_v away_o by_o the_o excite_a heat_n yet_o the_o saline_a part_n that_o combine_v with_o the_o fix_v one_o of_o the_o colcothar_n stick_v fast_o enough_o to_o they_o not_o to_o be_v easy_o drive_v away_o and_o if_o oil_n of_o vitriol_n be_v in_o a_o due_a proportion_n drop_v upon_o salt_n of_o tartar_n there_o result_v a_o tartarum_fw-la vitriolatum_fw-la wherein_o the_o acid_n and_o alkalizate_a part_n cohere_v so_o strong_o that_o it_o be_v not_o a_o ordinary_a degree_n of_o fire_n will_v be_v able_a to_o disjoin_v they_o insomuch_o that_o divers_a chemist_n have_v though_o very_o erroneous_o think_v this_o compound_a salt_n to_o be_v indestructible_a but_o a_o less_o heavy_a liquor_n than_o the_o ponderous_a oil_n of_o vitriol_n may_v by_o a_o alkaly_n be_v more_o strong_o detain_v than_o that_o oil_n itself_o experience_n have_v assure_v i_o that_o spirit_n of_o salt_n be_v drop_v to_o satiety_n upon_o a_o fix_a alkaly_n i_o use_v either_o that_o of_o nitre_n or_o of_o tartar_n there_o will_v be_v make_v so_o strict_a a_o union_n that_o have_v without_o additament_n distil_v the_o result_a salt_n with_o a_o strong_a and_o last_a fire_n it_o appear_v not_o at_o all_o considerable_o to_o be_v wrought_v upon_o and_o be_v not_o so_o much_o as_o melt_v but_o it_o be_v not_o the_o bare_a mixture_n or_o commistion_n of_o volatile_a particle_n with_o fix_v one_o yea_o though_o the_o former_a be_v predominant_a in_o quantity_n that_o will_v suffice_v to_o elevate_v the_o latter_a for_o unless_o the_o figure_n of_o the_o latter_a be_v congruous_a and_o fit_v to_o fasten_v to_o the_o other_o the_o volatile_a part_n will_v fly_v away_o in_o the_o heat_n and_o leave_v the_o rest_n as_o fix_v as_o before_o as_o when_o sand_n or_o ash_n be_v wet_v or_o drench_v with_o water_n they_o quick_o part_v with_o that_o water_n without_o part_v with_o any_o degree_n of_o their_o fixity_n but_o on_o the_o other_o side_n it_o be_v not_o always_o necessary_a that_o the_o body_n which_o be_v fit_v to_o destroy_v or_o much_o abate_v the_o volatility_n of_o another_o substance_n shall_v be_v itself_o fix_v for_o if_o there_o be_v a_o skilful_a or_o lucky_a coaptation_n of_o the_o figure_n of_o the_o particle_n of_o both_o the_o body_n these_o particle_n may_v take_v such_o hold_n of_o one_o another_o as_o to_o compose_v corpuscle_n that_o will_v neither_o by_o reason_n of_o their_o strict_a union_n be_v divide_v by_o heat_n nor_o by_o reason_n of_o their_o result_a grossness_n be_v elevate_v even_o by_o a_o strong_a fire_n or_o at_o least_o by_o such_o a_o degree_n of_o heat_n as_o will_v have_v suffice_v to_o raise_v more_o indispose_v body_n than_o either_o of_o the_o separate_a ingredient_n of_o the_o mixture_n this_o observation_n if_o due_o make_v out_o do_v so_o much_o favour_v our_o doctrine_n about_o the_o mechanical_a origine_fw-la of_o fixation_n and_o may_v be_v of_o such_o use_n not_o only_o to_o chemist_n in_o some_o of_o their_o operation_n but_o to_o philosopher_n in_o assign_v the_o cause_n of_o divers_a phaenomena_n of_o nature_n that_o it_o may_v be_v worth_a while_n to_o exemplify_v it_o by_o some_o instance_n the_o first_o whereof_o i_o shall_v take_v from_o a_o usual_a practice_n of_o the_o chemist_n themselves_o which_o i_o the_o rather_o do_v to_o let_v you_o see_v that_o such_o know_a experiment_n be_v too_o often_o over-looked_n by_o they_o that_o make_v they_o but_o yet_o may_v hint_n or_o confirm_v theory_n to_o those_o that_o reflect_v on_o they_o the_o instance_n i_o here_o speak_v of_o be_v that_o which_o be_v afford_v by_o the_o vulgar_a preparation_n of_o bezoardicum_n minerale_fw-mi for_o though_o the_o rectify_a butter_n or_o oil_n of_o antimony_n and_o the_o spirit_n of_o nitre_n that_o be_v put_v together_o to_o make_v this_o white_a praecipitate_v be_v both_o of_o they_o distil_a liquor_n yet_o the_o copious_a powder_n that_o result_v from_o their_o union_n be_v by_o that_o union_n of_o volatile_a part_n so_o far_o fix_v that_o after_o they_o have_v edulcorate_v it_o with_o water_n they_o prescribe_v the_o calcine_v of_o it_o in_o a_o crucible_n for_o five_o or_o six_o hour_n which_o operation_n it_o can_v not_o bear_v unless_o it_o have_v attain_v to_o a_o considerable_a fixation_n this_o discourse_n suppose_v with_o the_o generality_n of_o chemist_n that_o the_o addition_n of_o a_o due_a quantity_n of_o spirit_n of_o nitre_n be_v necessary_a to_o be_v employ_v in_o make_v the_o bezoardicum_n minerale_fw-mi but_o if_o it_o be_v a_o true_a observation_n which_o be_v attribute_v to_o the_o learned_a guntherus_n billichius_fw-la but_o which_o i_o have_v no_o furnace_n at_o hand_n to_o examine_v when_o i_o hear_v of_o it_o if_o i_o say_v it_o be_v true_a that_o a_o bezoardicum_n minerale_fw-mi may_v be_v obtain_v without_o spirit_n of_o nitre_n bare_o by_o a_o slow_a evaporation_n make_v in_o a_o glasse-dish_n of_o the_o more_o fugitive_a part_n of_o the_o oil_n of_o antimony_n this_o instance_n will_v not_o indeed_o be_v proper_a in_o this_o place_n but_o yet_o will_v belong_v to_o the_o second_o of_o the_o forego_n way_n of_o introduce_v fixity_n i_o proceed_v now_o to_o allege_v other_o particular_n in_o favour_n of_o the_o abovementioned_a observation_n if_o you_o take_v strong_a spirit_n of_o salt_n that_o when_o the_o glass_n be_v unstop_v will_v smoke_v of_o itself_o in_o the_o cold_a air_n and_o satiate_v it_o with_o the_o volatile_a spirit_n of_o urine_n the_o superfluous_a moisture_n be_v abstract_v you_o will_v obtain_v by_o this_o preparation_n which_o you_o may_v remember_v i_o long_o since_o communicate_v to_o you_o and_o divers_a other_o virtusi_n a_o compound_a salt_n scarce_o if_o at_o all_o distinguishable_a from_o sal_fw-la ammoniac_a and_o which_o will_v not_o as_o the_o salt_n it_o consist_v of_o will_v do_v before_o their_o coalition_n easy_o fly_v up_o of_o itself_o into_o the_o air_n but_o will_v require_v a_o not_o despicable_a degree_n of_o fire_n to_o sublime_a it_o of_o these_o semivolatile_a composition_n of_o salt_n i_o have_v make_v and_o elsewhere_o mention_v other_o which_o i_o shall_v not_o here_o repeat_v but_o pass_v on_o to_o other_o instance_n pertinent_a to_o our_o present_a design_n i_o late_o mention_v that_o the_o volatility_n of_o the_o spirit_n of_o nitre_n may_v be_v very_o much_o abate_v by_o bring_v they_o to_o coagulate_v into_o crystall_n with_o particle_n of_o corrode_v silver_n but_o i_o shall_v now_o add_v that_o i_o guess_v and_o by_o trial_n find_v that_o these_o nitrous_a spirit_n may_v be_v make_v much_o more_o fix_v by_o the_o addition_n of_o the_o spirit_n of_o salt_n which_o if_o it_o be_v good_a will_v of_o itself_o smoke_n in_o the_o air._n for_o have_v dissolve_v a_o convenient_a quantity_n of_o crystall_n of_o silver_n in_o distil_a water_n and_o
species_n which_o i_o the_o less_o scruple_n here_o to_o do_v because_o i_o have_v etc._n elsewhere_o more_o distinct_o enumerate_v and_o sort_v the_o solvent_n of_o body_n the_o attribute_n that_o seem_v the_o most_o proper_a to_o qualify_v a_o liquor_n to_o be_v corrosive_a be_v all_o of_o they_o mechanical_a be_v such_o as_o be_v these_o that_o follow_v first_o that_o the_o menstruum_fw-la consist_v of_o or_o abound_v with_o corpuscle_n not_o too_o big_a to_o get_v in_o at_o the_o pore_n or_o commissure_v of_o the_o body_n to_o be_v dissolve_v nor_o yet_o be_v so_o very_a minute_n as_o to_o pass_v through_o they_o as_o the_o beam_n of_o light_n do_v through_o glass_n or_o to_o be_v unable_a by_o reason_n of_o their_o great_a slenderness_n and_o flexibility_n to_o disjoin_v the_o part_n they_o invade_v second_o that_o these_o corpuscle_n be_v of_o a_o shape_n â—itting_v they_o to_o insinuate_v themselves_o more_o or_o less_o into_o the_o pore_n or_o commissure_v abovementioned_a in_o 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sweet_a whilst_o it_o retain_v the_o texture_n that_o belong_v to_o it_o as_o it_o be_v new_a especial_o if_o it_o be_v make_v of_o some_o sort_n of_o grape_n that_o grow_v in_o hot_a region_n yet_o after_o fermentation_n it_o will_v in_o tract_n of_o time_n as_o it_o be_v spontaneous_o degenerate_a into_o vinegar_n in_o which_o liquor_n to_o a_o multitude_n of_o the_o more_o solid_a corpuscle_n of_o the_o must_v their_o frequent_a and_o mutual_a attrition_n may_v be_v suppose_v to_o have_v give_v edge_n like_o those_o of_o the_o blade_n of_o sword_n or_o knife_n and_o in_o which_o perhaps_o the_o confuse_a agitation_n that_o precede_v extricate_v or_o as_o it_o be_v unsheathe_v some_o acid_a particle_n that_o derive_v from_o the_o sap_n of_o the_o vine_n or_o perchance_o more_o original_o from_o the_o juice_n of_o the_o earth_n be_v at_o first_o in_o the_o must_v but_o lay_v conceal_v and_o as_o it_o be_v sheathe_v among_o the_o other_o particle_n wherewith_o they_o be_v associate_v 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aqua_fw-la regius_fw-la which_o be_v corrosive_a menstruum_n dissolve_v metal_n the_o former_a of_o they_o silver_n and_o the_o latter_a gold_n much_o more_o speedy_o and_o copious_o when_o a_o external_a heat_n give_v their_o intestine_a motion_n a_o new_a degree_n of_o vehemency_n or_o velocity_n which_o be_v but_o a_o mechanical_a thing_n and_o yet_o this_o superadded_a measure_n of_o agitation_n be_v not_o only_o in_o the_o abovementioned_a instance_n a_o powerful_o assistant_n cause_n in_o the_o solution_n make_v by_o the_o late_o mention_v corrosive_a liquor_n but_o be_v that_o without_o which_o some_o menstruum_n be_v not_o wont_n sensible_o to_o corrode_v some_o body_n at_o all_o as_o we_o have_v try_v in_o keep_v quicksilver_n in_o three_o or_o four_o time_n its_o weight_n of_o oil_n of_o vitriol_n since_o in_o this_o menstruum_fw-la i_o find_v not_o the_o mercury_n to_o be_v dissolve_v or_o corrode_v though_o i_o keep_v it_o a_o long_a time_n in_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
light_a body_n to_o flow_v from_o the_o substantial_a form_n of_o amber_n will_v not_o expect_v it_o in_o a_o body_n so_o change_v and_o deprive_v of_o its_o noble_a part_n yet_o this_o caput_fw-la mortuum_fw-la be_v so_o far_o from_o have_v lose_v its_o electrical_a faculty_n that_o it_o seem_v to_o attract_v more_o vigorous_o than_o amber_n itself_o be_v wont_a to_o do_v before_o it_o be_v commit_v to_o distillation_n and_o from_o the_o forego_n instance_n afford_v we_o by_o the_o glass_n of_o antimony_n we_o may_v learn_v that_o when_o the_o form_n of_o a_o body_n seem_v to_o be_v destroy_v by_o a_o fiery_a analysis_n that_o dissipate_v the_o part_n of_o it_o the_o remain_a substance_n may_v yet_o be_v endow_v with_o electricity_n as_o the_o caput_fw-la mortuum_fw-la of_o amber_n may_v acquire_v it_o as_o in_o the_o case_n of_o the_o glass_n of_o antimony_n make_v of_o the_o calx_fw-la and_o of_o the_o flower_n and_o from_o the_o second_o example_n abovementioned_a and_o from_o 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