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couple_n of_o imperfection_n that_o more_o particular_o relate_v to_o the_o doctrine_n of_o quality_n and_o first_o i_o do_v not_o think_v it_o a_o convince_v argument_n that_o be_v wont_a to_o be_v employ_v by_o the_o aristotelian_o for_o their_o element_n as_o well_o as_o by_o the_o chemist_n for_o their_o principle_n that_o because_o this_o or_o that_o quality_n which_o they_o ascribe_v to_o a_o element_n or_o a_o principle_n be_v find_v in_o this_o or_o that_o body_n which_o they_o call_v mix_v therefore_o it_o must_v owe_v that_o quality_n to_o the_o participation_n of_o that_o principle_n or_o element_n for_o the_o same_o texture_n of_o part_n or_o other_o modification_n of_o matter_n may_v produce_v the_o like_a quality_n in_o the_o more_o simple_a and_o the_o more_o compound_a body_n and_o they_o may_v both_o separately_z derive_v it_o from_o the_o same_o cause_n and_o not_o one_o from_o the_o participation_n of_o the_o other_o so_o water_n and_o earth_n and_o metal_n and_o 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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
small_a a_o quantity_n of_o poison_n some_o small_a concretion_n or_o coagulation_n make_v of_o the_o minute_n particle_n of_o the_o blood_n into_o little_a clot_n less_o agile_a and_o more_o unwieldy_a than_o they_o be_v when_o they_o move_v separately_z which_o may_v be_v illustrate_v by_o the_o little_a curdling_n that_o may_v be_v make_v of_o the_o part_n of_o milk_n by_o a_o very_a small_a proportion_n of_o runnet_n or_o some_o acid_a liquor_n and_o the_o little_a coagulation_n make_v of_o the_o spirit_n of_o wine_n by_o that_o of_o urine_n nor_o will_v i_o now_o inquire_v whether_o beside_o the_o retardment_n of_o the_o motion_n of_o the_o blood_n some_o poison_n and_o other_o analogous_a agent_n may_v not_o give_v the_o motion_n of_o it_o a_o new_a modification_n as_o if_o some_o corpuscle_n that_o usual_o be_v more_o whirl_v or_o brandish_v be_v put_v into_o a_o more_o direct_a motion_n that_o may_v give_v it_o a_o peculiar_a kind_n of_o grate_v or_o other_o action_n upon_o the_o nervous_a and_o fibrous_a part_n of_o the_o body_n these_o i_o say_v and_o other_o suspicious_a that_o have_v sometime_o come_v into_o my_o thought_n i_o must_v not_o stay_v to_o examine_v but_o shall_v now_o rather_o offer_v to_o consideration_n whether_o since_o some_o part_n of_o the_o humane_a body_n be_v very_o differ_v from_o other_o in_o their_o structure_n and_o internal_a constitution_n and_o since_o also_o some_o agent_n may_v abound_v in_o corpuscle_n of_o differ_v shape_n bulk_n and_o motion_n the_o same_o medicine_n may_v not_o in_o reference_n to_o the_o same_o humane_a body_n be_v potential_o cold_a or_o potential_o hot_a according_a as_o it_o be_v apply_v or_o perhaps_o may_v upon_o one_o or_o both_o of_o the_o account_n new_o mention_v be_v cold_a in_o reference_n to_o one_o part_n of_o the_o body_n and_o hot_a in_o reference_n to_o the_o other_o and_o these_o effect_n need_v not_o be_v always_o ascribe_v to_o the_o mere_a and_o immediate_a action_n of_o the_o corpuscle_n of_o the_o medicine_n but_o sometime_o to_o the_o new_a quality_n they_o acquire_v in_o their_o passage_n by_o associate_a themselves_o with_o the_o blood_n or_o other_o fluid_n of_o the_o body_n or_o to_o the_o expulsion_n of_o some_o calorific_a or_o frigorific_a corpuscle_n or_o to_o the_o disposition_n they_o give_v the_o part_n on_o which_o they_o operate_v to_o be_v more_o or_o less_o permeate_v and_o agitate_a than_o before_o by_o some_o subtle_a aethereal_a matter_n or_o other_o efficient_n of_o heat_n or_o cold._n some_o of_o these_o conjecture_n about_o the_o relative_n nature_n of_o potential_o cold_a body_n may_v be_v either_o confirm_v or_o illustrate_v by_o such_o instance_n as_o these_o that_o spirit_n of_o wine_n be_v inward_o take_v be_v potential_o very_o hot_a and_o yet_o be_v outward_o apply_v to_o some_o burn_v and_o some_o hot_a tumor_n do_v notable_o abate_v the_o heat_n of_o the_o inflame_a part_n though_o the_o same_o spirit_n apply_v even_o outward_o to_o a_o tender_a eye_n will_v cause_v a_o great_a and_o dolorous_a agitation_n in_o it_o and_o camphire_n which_o in_o the_o do_v of_o less_o than_o a_o half_a or_o perhaps_o a_o quarter_n of_o a_o scruple_n have_v be_v observe_v to_o diffuse_v a_o heat_n through_o the_o body_n be_v with_o success_n external_o apply_v by_o physician_n and_o surgeon_n in_o refrigerate_a medicine_n but_o i_o leave_v the_o further_a inquiry_n into_o the_o operation_n of_o medicine_n to_o physician_n who_o may_v possible_o by_o what_o have_v be_v say_v be_v assist_v to_o compose_v the_o difference_n between_o some_o famous_a writer_n about_o the_o temperament_n of_o some_o medicine_n as_o mercury_n camphire_n etc._n etc._n which_o some_o will_v have_v to_o be_v cold_a and_o other_o maintain_v to_o be_v hot_a and_o shall_v only_o offer_v by_o way_n of_o confirm_v in_o general_a that_o potential_a coldness_n be_v only_o a_o relative_n quality_n a_o few_o particular_n the_o first_o whereof_o be_v afford_v by_o compare_v together_o the_o vi_o and_o the_o vii_o experiment_n before_o go_v which_o have_v oceasion_v this_o digression_n about_o potential_a coldness_n since_o by_o they_o it_o seem_v probable_a that_o the_o same_o thing_n may_v have_v it_o in_o reference_n to_o one_o body_n and_o not_o to_o another_o according_a to_o the_o disposition_n of_o the_o body_n it_o operate_v upon_o or_o that_o operate_v upon_o it_o and_o the_o fume_n of_o lead_n have_v be_v observe_v sometime_o for_o i_o have_v not_o find_v the_o effect_n to_o succeed_v always_o to_o arrest_v the_o fluidity_n of_o mercury_n which_o change_n be_v suppose_v to_o be_v the_o effect_n of_o a_o potential_a coldness_n belong_v to_o the_o chemist_n saturn_n in_o reference_n to_o fluid_a mercury_n though_o it_o have_v not_o that_o operation_n on_o any_o other_o liquor_n that_o we_o know_v of_o and_o last_o for_o i_o will_v not_o be_v too_o prolix_a though_o nitre_n and_o sal_fw-la ammoniac_a be_v both_o apart_o and_o joint_o cold_a in_o reference_n to_o water_n and_o though_o however_o nitre_n be_v thorough_o melt_v in_o a_o crucible_n it_o will_v not_o take_v fire_n of_o itself_o yet_o if_o whilst_o it_o be_v in_o fusion_n you_o shall_v by_o degree_n cast_v on_o it_o some_o powder_a sal_fw-la ammoniac_a it_o will_v take_v fire_n and_o flash_v vehement_o almost_o as_o if_o sulphur_n have_v be_v inject_v but_o our_o excursion_n have_v i_o fear_v last_v too_o long_o and_o therefore_o i_o shall_v present_o re-enter_v into_o the_o way_n and_o proceed_v to_o set_v down_o some_o trial_n about_o cold._n exper._n viii_o in_o the_o first_o experiment_n we_o observe_v that_o upon_o the_o pour_v of_o water_n upon_o sal_fw-la ammoniac_a there_o ensue_v a_o intense_a degree_n of_o cold_a and_o we_o have_v elsewhere_o recite_v that_o the_o like_a effect_n be_v produce_v by_o put_v instead_o of_o common_a water_n oil_n of_o vitriol_n to_o sal_fw-la ammoniac_a but_o now_o to_o show_v further_o what_o influence_n motion_n and_o texture_n may_v have_v upon_o such_o trial_n it_o may_v not_o be_v amiss_o to_o add_v the_o follow_a experiment_n to_o twelve_o ounce_n of_o sal_fw-la ammoniac_a we_o put_v by_o degree_n a_o equal_a weight_n of_o water_n and_o whilst_o the_o liquor_n be_v dissolve_v the_o salt_n and_o by_o that_o action_n produce_v a_o great_a coldness_n we_o wary_o pour_v in_o twelve_o ounce_n also_o of_o good_a oil_n of_o vitriol_n of_o which_o new_a mixture_n the_o event_n be_v that_o a_o notable_a degree_n of_o heat_n be_v quick_o produce_v in_o the_o glass_n wherein_o the_o ingredient_n be_v confound_v as_o unlikely_a as_o it_o seem_v that_o whereas_o each_o of_o the_o two_o liquor_n be_v wont_n with_o sal_fw-la ammoniac_a to_o produce_v a_o intense_a cold_a both_o of_o they_o act_v on_o it_o together_o shall_v produce_v the_o contrary_a quality_n but_o the_o reason_n i_o have_v to_o expect_v the_o success_n i_o meet_v with_o be_v this_o that_o it_o be_v probable_a the_o heat_n arise_v from_o the_o mixture_n of_o the_o two_o liquor_n will_v overpower_v the_o coldness_n produceable_a by_o the_o operation_n of_o either_o or_o both_o of_o they_o upon_o the_o salt_n finis_fw-la exper._n ix_o in_o most_o of_o the_o experiment_n that_o we_o have_v hitherto_o propose_v cold_a be_v wont_a to_o be_v regular_o produce_v in_o a_o mechanical_a way_n but_o i_o shall_v now_o add_v that_o in_o some_o sort_n of_o trial_n i_o find_v that_o the_o event_n be_v vary_v by_o unobserved_a circumstance_n so_o that_o sometime_o manifest_a coldness_n will_v be_v produce_v by_o mix_v two_o body_n together_o which_o at_o another_o time_n will_v upon_o their_o congress_n disclose_v a_o manifest_a heat_n and_o sometime_o again_o though_o more_o rare_o will_v have_v but_o a_o very_a faint_a and_o remiss_a degree_n of_o either_o of_o this_o sort_n of_o experiment_n who_o event_n i_o can_v not_o confident_o undertake_v for_o i_o find_v to_o be_v the_o dissolution_n of_o salt_n of_o tartar_n in_o spirit_n of_o vinegar_n and_o of_o some_o other_o salt_n that_o be_v not_o acid_a in_o the_o same_o menstruum_fw-la and_o even_o spirit_n of_o verdigrease_n make_v per_fw-la se_fw-la though_o a_o more_o potent_a menstruum_fw-la then_o common_a spirit_n of_o vinegar_n will_v not_o constant_o produce_v near_o such_o a_o heat_n at_o the_o begin_n of_o its_o operation_n as_o the_o greatness_n of_o the_o seem_a effervescence_n then_o excite_v will_v make_v one_o expect_v as_o may_v appear_v by_o the_o follow_a observation_n transcribe_v verbatim_o out_o of_o one_o of_o my_o adversaria_fw-la into_o eight_o ounce_n of_o spirit_n of_o verdigrease_n into_o which_o we_o have_v put_v a_o while_n before_o a_o standard-thermoscope_a to_o acquire_v the_o like_a temper_n with_o the_o liquor_n we_o put_v in_o a_o wide-mouthed_a glass_n two_o ounce_n of_o salt_n of_o tartar_n as_o fast_o as_o we_o dare_v for_o fear_n of_o make_v
undissolved_a powder_n at_o the_o bottom_n and_o yet_o if_o before_o any_o liquor_n be_v employ_v the_o sulphur_n be_v gentle_o melt_v and_o then_o the_o alkali_n of_o tartar_n be_v by_o degree_n put_v to_o it_o and_o incorporate_v with_o it_o as_o there_o will_v result_v a_o new_a texture_n discoverable_a to_o the_o eye_n by_o the_o new_a colour_n of_o the_o composition_n so_o there_o will_v emerge_n a_o disposition_n that_o be_v not_o before_o in_o either_o of_o the_o ingredient_n to_o be_v dissolve_v by_o spirit_n of_o wine_n insomuch_o that_o though_o the_o mixture_n be_v keep_v till_o it_o be_v quite_o cold_a or_o long_o after_o too_o provide_v it_o be_v careful_o secure_v from_o the_o access_n of_o the_o air_n the_o spirit_n of_o wine_n be_v put_v to_o it_o and_o shake_v with_o it_o will_n if_o you_o have_v go_v to_o work_v aright_o acquire_v a_o yellow_a tincture_n in_o a_o minute_n of_o a_o hour_n and_o perhaps_o in_o less_o than_o half_a a_o quarter_n of_o a_o hour_n a_o red_a one_o be_v rich_o impregnate_v with_o sulphureous_a particle_n discoverable_a by_o the_o smell_n taste_v and_o divers_a operation_n exper._n ii_o it_o be_v know_v to_o several_a chemist_n that_o spirit_n of_o salt_n do_v not_o dissolve_v crude_a mercury_n in_o the_o cold_a and_o i_o remember_v i_o keep_v they_o for_o a_o considerable_a time_n in_o no_o contemptible_a heat_n without_o find_v any_o solution_n follow_v but_o i_o suppose_v many_o of_o they_o will_v be_v gratify_v by_o a_o experiment_n once_o mention_v to_o i_o by_o a_o ingenious_a german_a gentleman_n namely_o that_o if_o mercury_n be_v precipitate_v per_fw-la se_fw-la that_o be_v reduce_v to_o a_o red_a powder_n without_o additament_n by_o the_o mere_a operation_n of_o the_o fire_n the_o texture_n will_v be_v so_o change_v that_o the_o abovementioned_a spirit_n will_v ready_o dissolve_v it_o for_o i_o find_v it_o upon_o trial_n to_o do_v so_o nay_o sometime_o so_o ready_o that_o i_o scarce_o remember_v that_o i_o ever_o see_v any_o menstruum_fw-la so_o nimble_o dissolve_v any_o metalline_a body_n whatsoever_o exper._n iii_o the_o former_a experiment_n be_v the_o more_o remarkable_a because_o that_o though_o oil_n of_o vitriol_n will_v in_o a_o good_a heat_n corrode_v quicksilver_n as_o we_o have_v already_o relate_v in_o the_o first_o section_n yet_o i_o remember_v i_o keep_v a_o precipitate_v per_fw-la se_fw-la for_o divers_a hour_n in_o a_o considerable_a degree_n of_o heat_n without_o find_v it_o to_o be_v dissolve_v or_o corrode_v by_o the_o menstruum_fw-la and_o yet_o have_v for_o trial_n sake_n put_v another_o parcel_n of_o the_o same_o mercurial_a powder_n into_o some_o aqua_fw-la fortis_fw-la or_o spirit_n of_o nitre_n there_o ensue_v a_o speedy_a dissolution_n even_o in_o the_o cold_a and_o that_o this_o disposition_n to_o be_v dissolve_v by_o spirit_n of_o salt_n that_o mercury_n acquire_v by_o be_v turn_v into_o precipitate_v per_fw-la se_fw-la that_o be_v by_o be_v calcine_v be_v not_o mere_o the_o effect_n of_o the_o operation_n of_o the_o fire_n upon_o it_o but_o of_o some_o change_n of_o texture_n produce_v by_o that_o operation_n may_v be_v probable_o argue_v from_o hence_o that_o whereas_o spirit_n of_o salt_n be_v a_o very_a proper_a menstruum_fw-la as_o i_o have_v often_o try_v for_o the_o dissolve_v of_o iron_n or_o steel_n yet_o when_o that_o metal_n be_v reduce_v by_o the_o action_n of_o the_o fire_n especial_o if_o a_o kind_n of_o vitrification_n and_o a_o irroration_n with_o distil_a vinegar_n have_v precede_v to_o crocus_n martis_n though_o it_o be_v thereby_o bring_v to_o a_o very_a fine_a powder_n yet_o i_o find_v not_o that_o as_o spirit_n of_o salt_n will_v ready_o and_o with_o heat_n and_o noise_n dissolve_v file_n of_o mars_n so_o it_o will_v have_v the_o same_o or_o any_o thing_n near_o such_o a_o operation_n upon_o the_o crocus_n but_o rather_o after_o a_o good_a while_n it_o will_v leave_v in_o the_o bottom_n of_o the_o glass_n a_o considerable_a if_o not_o the_o great_a part_n of_o it_o scarce_o if_o at_o all_o sensible_o alter_v and_o the_o menstruum_fw-la seem_v rather_o to_o have_v extract_v a_o tincture_n than_o make_v a_o ordinary_a solution_n since_o the_o colour_n of_o it_o be_v a_o high_a yellow_a or_o red_a whereas_o mars_n dissolve_v in_o spirit_n of_o salt_n afford_v a_o green_a solution_n whether_o by_o repeat_v operation_n with_o fresh_a menstruum_fw-la further_o dissolution_n may_v in_o time_n be_v make_v i_o have_v not_o occasion_n to_o try_v and_o it_o may_v suffice_v for_o our_o present_a purpose_n that_o mars_n by_o the_o operation_n of_o the_o fire_n do_v evident_o acquire_v not_o as_o mercury_n have_v do_v a_o manifest_a facility_n but_o on_o the_o contrary_a a_o great_a indisposition_n to_o be_v dissolve_v by_o spirit_n of_o salt_n to_o second_v this_o experiment_n we_o vary_v it_o by_o employ_v instead_o of_o spirit_n of_o salt_n strong_a oil_n of_o vitriol_n which_o be_v pour_v on_o a_o little_a crocus_n martis_n make_v per_fw-la se_fw-la do_v not_o as_o that_o menstruum_fw-la be_v wont_a to_o do_v upon_o file_n of_o crude_a mars_n ready_o and_o manifest_o fall_v upon_o the_o powder_n with_o froth_n and_o noise_n but_o on_o the_o contrary_a rest_v for_o divers_a hour_n calm_o upon_o it_o without_o so_o much_o as_o produce_v with_o it_o any_o sensible_a warmth_n exper._n iu._n it_o agree_v very_o well_o with_o our_o doctrine_n about_o the_o dependence_n of_o the_o corrosibility_n of_o body_n upon_o their_o texture_n that_o from_o divers_a body_n whilst_o they_o be_v in_o conjunction_n with_o other_o there_o result_v mass_n and_o those_o homogeneous_a as_o to_o sense_n that_o be_v easy_o dissoluble_a in_o liquor_n in_o which_o a_o great_a part_n of_o the_o matter_n if_o it_o be_v separate_v from_o the_o rest_n will_v not_o be_v at_o all_o dissolve_v thus_o we_o see_v that_o common_a vitriol_n be_v easy_o dissolve_v in_o mere_a water_n whereas_o if_o it_o be_v skilful_o calcine_v it_o will_v yield_v sometime_o near_o half_a its_o first_o weight_n of_o insipid_a colcothar_n which_o not_o only_o be_v not_o soluble_a in_o water_n but_o which_o neither_o aqua_fw-la fortis_fw-la no_n aqua_fw-la regis_fw-la though_o sometime_o they_o will_v colour_v themselves_o upon_o it_o be_v able_a as_o far_o as_o i_o have_v try_v to_o make_v solution_n of_o we_o see_v likewise_o that_o simple_a water_n will_v be_v boil_v for_o a_o competent_a time_n with_o hartshorn_n dissolve_v it_o and_o make_v a_o jelly_n of_o it_o and_o yet_o when_o we_o have_v take_v hartshorn_n thorough_o calcine_v to_o whiteness_n not_o only_o we_o find_v that_o common_a water_n be_v no_o long_o a_o fit_a solvent_a for_o it_o but_o we_o observe_v that_o when_o we_o put_v oil_n of_o vitriol_n itself_o upon_o it_o a_o good_a part_n of_o the_o white_a powder_n be_v even_o by_o that_o corrosive_n menstruum_fw-la leave_v undissolved_a exper._n v._n in_o the_o fifteen_o of_o the_o forego_n experiment_n i_o refer_v to_o a_o way_n of_o make_v the_o flower_n or_o powder_n of_o common_a sulphur_n become_v easy_o dissoluble_a which_o otherwise_o it_o be_v far_o from_o be_v in_o high_o rectify_v spirit_n of_o wine_n wherefore_o i_o shall_v now_o add_v that_o it_o be_v quick_o perform_v by_o gentle_o melt_v the_o sulphur_n and_o incorporate_n with_o it_o by_o degree_n a_o equal_a or_o a_o great_a weight_n of_o sine_o powder_a salt_n of_o tartar_n or_o of_o fix_a nitre_n for_o if_o the_o mixture_n be_v put_v warm_a into_o a_o mortar_n that_o be_v so_o too_o and_o as_o soon_o as_o it_o be_v reduce_v to_o powder_n be_v put_v into_o a_o glass_n and_o well_o shake_v with_o pure_a spirit_n of_o wine_n it_o will_v as_o perhaps_o i_o may_v have_v elsewhere_o observe_v in_o a_o few_o minute_n acquire_v a_o yellow_a colour_n which_o afterward_o will_v grow_v deep_o and_o manifest_v itself_o by_o the_o smell_n and_o effect_n to_o be_v a_o real_a solution_n of_o sulphur_n and_o yet_o this_o solubleness_n in_o spirit_n of_o wine_n seem_v procure_v by_o the_o change_n of_o texture_n result_v from_o the_o commixtion_n of_o mere_a salt_n of_o tartar_n which_o chemist_n know_v to_o their_o trouble_n to_o be_v itself_o a_o body_n almost_o as_o difficult_a as_o sulphur_n to_o be_v dissolve_v in_o phlegmless_a spirit_n of_o wine_n unless_o the_o constitution_n of_o it_o be_v first_o alter_v by_o some_o convenient_a additament_n which_o last_o word_n i_o add_v because_o though_o spirit_n of_o verdigrease_n be_v a_o menstruum_fw-la that_o use_v to_o come_v off_o in_o distillation_n much_o more_o entire_o than_o other_o acid_a menstruum_n from_o the_o body_n it_o have_v dissolve_v yet_o it_o will_v serve_v well_o for_o a_o additament_n to_o open_v as_o the_o chemist_n speak_v the_o body_n of_o the_o salt_n of_o tartar_n for_o this_o purpose_n i_o employ_v spirit_n of_o verdigrease_n not_o make_v