a_o blue_a liquor_n which_o not_o a_o few_o ingenious_a person_n and_o among_o they_o some_z who_o profession_n make_v they_o very_o conversant_a with_o colour_n have_v look_v upon_o with_o some_o wonder_n but_o these_o azure_a colour_a liquor_n shall_v be_v free_v from_o the_o subside_v matter_n which_o the_o salt_n of_o tartar_n or_o urine_n precipitate_v out_o of_o they_o rather_o by_o be_v decant_v than_o by_o filtration_n for_o by_o the_o latter_a of_o these_o way_n we_o have_v sometime_o find_v the_o colour_n of_o they_o very_o much_o impair_v and_o little_a superior_a to_o that_o of_o the_o grosser_n substance_n that_o it_o leave_v in_o the_o filtre_n experiment_n xxiii_o that_o rose_n hold_v over_o the_o fume_v of_o sulphur_n may_v quick_o by_o it_o be_v deprive_v of_o their_o colour_n and_o have_v as_o much_o of_o their_o leave_n as_o the_o fume_v work_n upon_o burn_v pale_a be_v a_o experiment_n that_o divers_a other_o have_v try_v as_o well_o as_o i._o but_o pyrophilus_n it_o may_v seem_v somewhat_o strange_a to_o one_o that_o have_v never_o consider_v the_o compound_v nature_n of_o brimstone_n that_o whereas_o the_o fume_v of_o sulphur_n will_v as_o we_o have_v say_v whiten_n the_o leave_n of_o rose_n that_o liquor_n which_o be_v common_o call_v oil_n of_o sulphur_n per_fw-la campanam_fw-la because_o it_o be_v suppose_v to_o be_v make_v by_o the_o condensation_n of_o these_o fume_n in_o glass_n shape_v like_o bell_n into_o a_o liquor_n do_v powerful_o heighten_v the_o tincture_n of_o red_a rose_n and_o make_v it_o more_o red_a and_o vivid_n as_o we_o have_v easy_o try_v by_o put_v some_o red-rose_n leave_v that_o have_v be_v long_o dry_v and_o so_o have_v lose_v much_o of_o their_o colour_n into_o a_o vial_n of_o fair_a water_n for_o a_o while_n after_o the_o affusion_n of_o a_o convenient_a quantity_n of_o the_o liquor_n we_o be_v speak_v of_o both_o the_o leave_v themselves_o and_o the_o water_n they_o be_v steep_v in_o discover_v a_o very_a fresh_a and_o lovely_a colour_n experiment_n xxiv_o it_o may_v pyrophilus_n somewhat_o serve_v to_o illustrate_v not_o only_o the_o doctrine_n of_o pigment_n and_o of_o colour_n but_o divers_a other_o part_n of_o the_o corpuscular_a philosophy_n as_o that_o explicate_v odour_n and_o many_o other_o thing_n not_o as_o the_o school_n by_o airy_a quality_n but_o by_o real_a though_o extreme_o minute_n body_n to_o examine_v how_o much_o of_o a_o colourless_a liquor_n a_o very_a small_a parcel_n of_o a_o pigment_n may_v imbue_n with_o a_o discernible_a colour_n and_o though_o there_o be_v scarce_o any_o thing_n of_o preciseness_n to_o be_v expect_v from_o such_o trial_n yet_o i_o presume_v that_o at_o least_o i_o shall_v be_v able_a to_o show_v a_o much_o further_a subdivision_n of_o the_o part_n of_o matter_n into_o visible_a particle_n than_o i_o have_v hitherto_o find_v take_v notice_n of_o and_o than_o most_o man_n will_v imagine_v no_o body_n that_o i_o know_v of_o have_v yet_o attempt_v to_o reduce_v this_o matter_n to_o any_o measure_n the_o body_n the_o most_o promise_a for_o such_o a_o purpose_n may_v seem_v to_o be_v the_o metal_n especial_o gold_n because_o of_o the_o multitude_n and_o minuteness_n of_o its_o part_n which_o may_v be_v argue_v from_o the_o incomparable_a closeness_n of_o its_o texture_n but_o though_o we_o try_v a_o solution_n of_o gold_n make_v in_o aqua_fw-la regius_fw-la first_o and_o then_o in_o fair_a water_n yet_o in_o regard_n we_o be_v to_o determine_v the_o pigment_n we_o employ_v not_o by_o bulk_n but_o weight_n and_o because_o also_o that_o the_o yellow_a colour_n of_o gold_n be_v but_o a_o faint_a one_o in_o comparison_n of_o the_o deep_a còlour_n of_o cochineel_n we_o rather_o choose_v this_o to_o make_v our_o trial_n with_o but_o among_o divers_a of_o these_o it_o will_v suffice_v to_o set_v down_o one_o which_o be_v careful_o make_v in_o vessel_n convenient_o shape_v and_o that_o in_o the_o presence_n of_o a_o witness_n and_o a_o assistant_n the_o sum_n whereof_o i_o find_v among_o my_o adversaria_fw-la register_v in_o the_o follow_a word_n to_o which_o i_o shall_v only_o premise_v to_o lessen_v the_o wonder_n of_o so_o strange_a a_o diffusion_n of_o the_o pigment_n that_o cochineel_n will_v be_v better_o dissolve_v and_o have_v its_o colour_n far_o more_o heighten_v by_o spirit_n of_o urine_n than_o i_o say_v not_o by_o common_a water_n but_o by_o rectify_v spirit_n of_o wine_n itself_o the_o note_n i_o speak_v off_o be_v this_o one_o grain_n of_o cochineel_n dissolve_v in_o a_o pretty_a quantity_n of_o spirit_n of_o urine_n and_o then_o dissolve_v further_o by_o degree_n in_o fair_a water_n impart_v a_o discernible_a though_o but_o a_o very_a faint_a colour_n to_o about_o six_o glass-fulls_a of_o water_n each_o of_o they_o contain_v about_o forty_o three_o ounce_n and_o a_o half_a which_o amount_v to_o above_o a_o hundred_o twenty_o five_o thousand_o time_n its_o own_o weight_n experiment_n xxv_o it_o may_v afford_v a_o considerable_a hint_n pyrophilus_n to_o he_o that_o will_v improve_v the_o art_n of_o die_v to_o know_v what_o change_n of_o colour_n may_v be_v produce_v by_o the_o three_o several_a sort_n of_o salt_n already_o often_o mention_v some_o or_o other_o of_o which_o may_v be_v procure_v in_o quantity_n at_o reasonable_a rate_n in_o the_o juice_n decoction_n infusion_n and_o in_o a_o word_n the_o more_o soluble_a part_n of_o vegetable_n and_o though_o the_o design_n of_o this_o discourse_n be_v the_o improvement_n of_o knowledge_n not_o of_o trade_n yet_o thus_o much_o i_o shall_v not_o scruple_n to_o intimate_v here_o that_o the_o blue_a liquor_n mention_v in_o the_o twenty_o and_o one_o and_o twenty_o experiment_n be_v fat_a from_o be_v the_o only_a vegetable_a substance_n upon_o which_o acid_n urinous_n and_o alcalizate_a salt_n have_v the_o like_a operation_n to_o those_o recite_v in_o those_o two_o experiment_n for_o ripe_a privet_fw-la berry_n for_o instance_n be_v crush_v upon_o white_a paper_n though_o they_o stain_v it_o with_o a_o purplish_a colour_n yet_o if_o we_o let_v fall_v on_o some_o part_n of_o it_o two_o or_o three_o drop_n of_o spirit_n of_o salt_n and_o on_o the_o other_o part_n a_o little_a more_o of_o the_o strong_a solution_n of_o pot-ash_n the_o former_a liquor_n immediate_o turn_v that_o part_n of_o the_o thick_a juice_n or_o pulp_n on_o which_o it_o fall_v into_o a_o lovely_a red_a and_o the_o latter_a turn_v the_o other_o part_n of_o it_o into_o a_o delightful_a green_n though_o i_o will_v not_o undertake_v that_o those_o colour_n in_o that_o substance_n shall_v not_o be_v much_o more_o orient_a than_o last_a and_o though_o pyrophilus_n this_o experiment_n may_v seem_v to_o be_v almost_o the_o same_o with_o those_o already_o deliver_v concern_v syrup_n of_o violet_n and_o the_o juice_n of_o blew-bottle_n yet_o i_o think_v it_o not_o amiss_o to_o take_v this_o occasion_n to_o inform_v you_o that_o this_o experiment_n reach_v much_o far_o than_o perhaps_o you_o yet_o imagine_v and_o may_v be_v of_o good_a use_n to_o those_o who_o it_o concern_v to_o know_v how_o die_a stuff_n may_v be_v wrought_v upon_o by_o saline_n liquor_n for_o i_o have_v find_v this_o experiment_n to_o succeed_v in_o so_o many_o various_a berry_n flower_n blossom_n and_o other_o fine_a part_n of_o vegetable_n that_o neither_o my_o memory_n nor_o my_o leisure_n serve_v i_o to_o enumerate_v they_o and_o it_o be_v somewhat_o surprise_v to_o see_v by_o how_o differingly-coloured_a flower_n or_o blossom_n for_o example_n the_o paper_n be_v stain_v will_v by_o a_o acid_n spirit_n be_v immediate_o turn_v red_a and_o by_o any_o alcaly_a or_o any_o urinous_a spirit_n turn_v green_a insomuch_o that_o even_o the_o crush_a blossom_n of_o meserion_n which_o i_o gather_v in_o winter_n and_o frosty_a wether_n and_o those_o of_o pease_n crush_v upon_o white_a paper_n how_o remote_a soever_o their_o colour_n be_v from_o green_n will_v in_o a_o moment_n pass_v into_o a_o deep_a degree_n of_o that_o colour_n upon_o the_o touch_n of_o a_o alcalizate_a liquor_n to_o which_o let_v we_o add_v that_o either_o of_o those_o new_a pigment_n if_o i_o may_v so_o call_v they_o may_v by_o the_o affusion_n of_o enough_o of_o a_o contrary_a liquor_n be_v present_o change_v from_o red_a into_o green_n and_o from_o green_a into_o red_a which_o observation_n will_v hold_v also_o in_o syrup_n of_o violet_n juice_n of_o blew-bottle_n etc._n etc._n annotation_n after_o what_o i_o have_v former_o deliver_v to_o evince_v that_o there_o be_v many_o instance_n wherein_o new_a colour_n be_v produce_v or_o acquire_v by_o body_n which_o chemist_n be_v wont_a to_o think_v destitute_a of_o salt_n or_o to_o who_o change_n of_o colour_n no_o new_a accession_n of_o saline_n particle_n do_v appear_v to_o contribute_v i_o think_v we_o may_v safe_o enough_o
as_o far_o as_o i_o can_v judge_v by_o what_o i_o have_v try_v be_v able_a to_o make_v it_o a_o yellow_a liquor_n insomuch_o that_o a_o single_a drop_n of_o a_o rich_a solution_n of_o cochineel_n in_o spirit_n of_o urine_n be_v dilute_v with_o above_o a_o ounce_n of_o fair_a water_n exhibit_v no_o yellowishness_n at_o all_o but_o a_o fair_a though_o somewhat_o faint_a pink_n or_o carnation_n and_o even_o when_o cochineel_n be_v by_o degree_n dilute_v much_o beyond_o the_o new_o mention_v colour_n by_o the_o way_n former_o relate_v to_o you_o in_o the_o twenty_o four_o experiment_n i_o remember_v not_o that_o there_o appear_v in_o the_o whole_a trial_n any_o yellow_a but_o if_o you_o take_v balsom_a of_o sulphur_n for_o instance_n though_o it_o may_v appear_v in_o a_o glass_n where_o it_o have_v a_o good_a thickness_n to_o be_v of_o a_o deep_a red_a yet_o if_o you_o shake_v the_o glass_n or_o pour_v a_o few_o drop_n on_o a_o sheet_n of_o white_a paper_n spread_v they_o on_o it_o with_o your_o finger_n the_o balsam_n that_o fall_v back_o along_o the_o side_n of_o the_o glass_n and_o that_o which_o stain_v the_o paper_n will_v appear_v yellow_a not_o red._n and_o there_o be_v divers_a tincture_n such_o as_o that_o of_o amber_n make_v with_o spirit_n of_o wine_n to_o name_n now_o no_o more_o that_o will_v appear_v either_o yellow_a or_o red_a according_a as_o the_o vessel_n that_o they_o fill_v be_v slender_n or_o broad_n experiment_n xxxiii_o but_o to_o proceed_v to_o the_o experiment_n i_o be_v about_o to_o deliver_v first_o oil_n or_o spirit_n of_o turpentine_n though_o clear_a as_o fair_a water_n be_v digest_v upon_o the_o pure_o white_a sugar_n of_o lead_n have_v in_o a_o short_a time_n afford_v we_o a_o high_a red_a tincture_n that_o some_o artist_n be_v please_v to_o call_v the_o balsam_n of_o saturn_n which_o they_o very_o much_o and_o probable_o not_o altogether_o without_o cause_n extol_v as_o a_o excellent_a medicine_n in_o divers_a outward_a affection_n experiment_n xxxiv_o next_o take_v of_o common_a brimstone_n fine_o powder_v five_o ounce_n of_o salarmoniack_a likewise_o pulverise_v a_o equal_a weight_n of_o beat_a quicklime_n six_o ounce_n mix_v these_o powder_n exquisite_o and_o distil_v they_o through_o a_o retort_n place_v in_o sand_n by_o degree_n of_o fire_n give_v at_o length_n as_o intense_a a_o heat_n as_o you_o well_o can_v in_o sand_n there_o will_v come_v over_o if_o you_o have_v wrought_v well_o a_o volatile_a tincture_n of_o sulphur_n which_o may_v probable_o prove_v a_o excellent_a medicine_n and_o shall_v have_v be_v mention_v among_o the_o other_o preparation_n of_o sulphur_n which_o we_o have_v elsewhere_o impart_v to_o you_o but_o that_o it_o be_v very_o pertinent_a to_o our_o present_a subject_n the_o change_n of_o colour_n for_o though_o none_o of_o the_o ingredient_n be_v red_a the_o distil_v liquor_n will_v be_v so_o and_o this_o liquor_n if_o it_o be_v well_o draw_v will_v upon_o a_o little_a agitation_n of_o the_o vial_n first_o unstopped_a especial_o if_o it_o be_v hold_v in_o a_o warm_a hand_n send_v forth_o a_o copious_a fume_v not_o red_a like_o that_o of_o nitre_n but_o white_a and_o sometime_o this_o liquor_n may_v be_v so_o draw_v that_o i_o remember_v not_o long_o since_o i_o take_v pleasure_n to_o observe_v in_o a_o parcel_n of_o it_o that_o ingredient_n not_o red_a do_v not_o only_o yield_v by_o distillation_n a_o volatile_a spirit_n that_o be_v red_a but_o though_o that_o liquor_n do_v upon_o the_o bare_a open_n of_o the_o bottle_n it_o be_v keep_v in_o drive_v we_o away_o with_o the_o plenty_n and_o sulphureous_a send_v of_o a_o white_a steam_n which_o it_o send_v forth_o yet_o the_o liquor_n itself_o be_v touch_v by_o our_o finger_n do_v immediate_o die_v they_o black_n experiment_n xxxv_o the_o three_o and_o last_o experiment_n i_o shall_v now_o mention_v to_o show_v how_o prone_a body_n abound_v in_o sulphureous_a part_n be_v to_o afford_v a_o red_a colour_n be_v one_o wherein_o by_o the_o operation_n of_o a_o saline_n spirit_n upon_o a_o white_a or_o whitish_a body_n which_o according_a to_o the_o chemist_n shall_v be_v altogether_o sulphureous_a a_o redness_n may_v be_v produce_v not_o as_o in_o the_o former_a experiment_n slow_o but_o in_o the_o twinkle_n of_o a_o eye_n we_o take_v then_o of_o the_o essential_a oil_n of_o anniseed_n which_o have_v this_o peculiarity_n that_o in_o cold_a weather_n it_o lose_v its_o fluidity_n and_o the_o great_a part_n of_o its_o transparency_n and_o look_n like_o a_o white_a or_o whitish_a ointment_n and_o near_o at_o hand_n seem_v to_o consist_v of_o a_o multitude_n of_o little_a soft_a scale_n of_o this_o coagulate_v stuff_v we_o spread_v a_o little_a with_o a_o knife_n upon_o a_o piece_n of_o white_a paper_n and_o let_v fall_n on_o it_o and_o mix_v with_o it_o a_o drop_n or_o two_o of_o oil_n of_o vitriol_n immediate_o as_o we_o foresee_v there_o emerge_v together_o with_o some_o heat_n and_o smoke_n a_o blood-red_n colour_n which_o therefore_o be_v in_o a_o trice_n produce_v by_o two_o body_n whereof_o the_o one_o have_v but_o a_o whitish_a colour_n and_o the_o other_o if_o careful_o rectify_v have_v no_o colour_n at_o all_o experiment_n xxxvi_o but_o on_o this_o occasion_n pyrophilus_n we_o must_v add_v once_o for_o all_o that_o in_o many_o of_o the_o above-recited_n experiment_n though_o the_o change_n of_o colour_n happen_v as_o we_o have_v mention_v they_o yet_o the_o emergent_a or_o produce_v colour_n be_v oft_o time_n very_a subject_n to_o degenerate_a both_o quick_o and_o much_o notwithstanding_o which_o since_o the_o change_n we_o have_v set_v down_o do_v happen_v present_o upon_o the_o operation_n of_o the_o body_n upon_o each_o other_o or_o at_o the_o time_n by_o we_o specify_v that_o be_v sufficient_a both_o to_o justify_v our_o veracity_n and_o to_o show_v what_o we_o intend_v it_o not_o be_v essential_a to_o the_o genuineness_n of_o a_o colour_n to_o be_v durable_a for_o a_o fade_a leaf_n that_o be_v ready_a to_o rot_v and_o moulder_v into_o dust_n may_v have_v as_o true_a a_o yellow_a as_o a_o wedge_n of_o gold_n which_o so_o obstinate_o resist_v both_o time_n and_o fire_n and_o the_o reason_n why_o i_o take_v occasion_n from_o the_o former_a experiment_n to_o subjoin_v this_o general_a advertisement_n be_v that_o i_o have_v several_a time_n observe_v that_o the_o mixture_n result_v from_o the_o oil_n of_o vitriol_n and_o of_o anniseed_n though_o it_o acquire_v a_o thick_a consistence_n than_o either_o of_o the_o ingredient_n have_v have_v quick_o lose_v its_o colour_n turn_v in_o a_o very_a short_a time_n into_o a_o dirty_a grace_n at_o least_o in_o the_o superficial_a part_n where_o it_o be_v expose_v to_o the_o air_n which_o last_o circumstance_n i_o therefore_o mention_n because_o that_o though_o it_o seem_v probable_a that_o this_o degeneration_n of_o colour_n may_v oft_o time_n and_o in_o divers_a case_n proceed_v from_o the_o further_a action_n of_o the_o saline_n corpuscle_n and_o the_o other_o ingredient_n upon_o one_o another_o yet_o in_o many_o case_n much_o of_o the_o quick_a change_n of_o colour_n seem_v ascribeable_a to_o the_o air_n as_o may_v be_v make_v probable_a by_o several_a reason_n the_o first_o whereof_o may_v be_v fetch_v from_o the_o new_o recite_v example_n of_o the_o two_o oil_n the_o next_o may_v be_v that_o we_o have_v sometime_o observe_v long_a window-curtain_n of_o light_a colour_n to_o have_v that_o part_n of_o they_o which_o be_v expose_v to_o the_o air_n when_o the_o window_n be_v open_a of_o one_o colour_n and_o the_o low_a part_n that_o be_v shelter_v from_o the_o air_n by_o the_o wall_n of_o another_o colour_n and_o the_o three_o argument_n may_v be_v fetch_v from_o divers_a observation_n both_o of_o other_o and_o our_o own_o for_o of_o that_o pigment_n so_o well_o know_v in_o painter_n shop_n by_o the_o name_n of_o turnso_n our_o industrious_a parkinson_n in_o the_o particular_a account_n he_o give_v of_o the_o plant_n that_o bear_v it_o tell_v we_o also_o that_o the_o berry_n when_o they_o be_v at_o their_o full_a maturity_n have_v within_o they_o between_o the_o outer_a skin_n and_o the_o inward_a 12._o kernel_n or_o seed_n a_o certain_a juice_n or_o moisture_n which_o be_v rub_v upon_o paper_n or_o cloth_n at_o the_o first_o appear_v of_o a_o fresh_a and_o lovely_a green_a colour_n but_o present_o change_v into_o a_o kind_n of_o bluish_a purple_n upon_o the_o cloth_n or_o paper_n and_o the_o same_o cloth_n afterward_o wet_a in_o water_n and_o wring_v forth_o will_v colour_n the_o water_n into_o a_o claret_n wine_n colour_n and_o these_o conclude_v he_o be_v those_o rag_n of_o cloth_n which_o be_v usual_o call_v turnsol_n in_o the_o druggist_n or_o grocer_n shop_n and_o to_o this_o observation_n of_o our_o botanist_n we_o
come_v to_o be_v lodge_v or_o harbour_v in_o the_o pore_n that_o admit_v they_o the_o surface_n of_o the_o body_n will_v for_o the_o most_o part_n have_v its_o asperity_n alter_v and_o the_o incident_a light_n that_o meet_v with_o a_o grosser_n liquor_n in_o the_o little_a cavity_n that_o before_o contain_v nothing_o but_o air_n or_o some_o yet_o subtle_a fluid_n will_v have_v its_o beam_n either_o refract_v or_o imbibe_v or_o else_o reflect_v more_o or_o less_o interrupt_o than_o they_o will_v be_v if_o the_o body_n have_v be_v unmoistened_a as_o we_o see_v that_o even_o fair_a water_n fall_v on_o white_a paper_n or_o linen_n and_o divers_a other_o body_n apt_a to_o soak_v it_o in_o will_v for_o some_o such_o reason_n as_o those_o new_o mention_v immediate_o alter_v the_o colour_n of_o they_o and_o for_o the_o most_o part_n make_v it_o sad_a than_o that_o of_o the_o unwetted_a part_n of_o the_o same_o body_n and_o so_o you_o may_v see_v that_o when_o in_o the_o summer_n the_o 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which_o incorporate_n with_o the_o grease_n and_o yet_o be_v of_o a_o very_a volatile_a nature_n do_v easy_o carry_v it_o away_o with_o itself_o and_o i_o have_v sometime_o try_v that_o by_o rub_v upon_o a_o good_a touchstone_n a_o certain_a metalline_a mixture_n so_o compound_v that_o the_o impression_n it_o leave_v upon_o the_o stone_n appear_v of_o a_o very_a differ_a colour_n from_o that_o of_o gold_n yet_o a_o little_a of_o aquafortis_n will_v in_o a_o trice_n make_v the_o golden_a colour_n disclose_v itself_o by_o dissolve_v the_o other_o metalline_a corpuscle_n that_o conceal_v those_o of_o the_o gold_n which_o you_o know_v that_o menstruum_fw-la will_v leave_v untouched_a 21._o three_o a_o liquor_n may_v alter_v the_o colour_n of_o a_o body_n by_o make_v a_o comminution_n of_o its_o part_n and_o that_o principal_o two_o way_n the_o first_o by_o disjoyn_v and_o dissipate_v those_o cluster_n of_o particle_n if_o i_o may_v so_o call_v they_o which_o stick_v more_o loose_o 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body_n of_o the_o crystal_n as_o to_o its_o manner_n of_o reflect_v the_o light_n as_o we_o shall_v have_v occasion_n to_o show_v hereafter_o 22._o there_o be_v a_o four_o way_n contrary_a to_o the_o three_o whereby_o a_o liquor_n may_v change_v the_o colour_n of_o another_o body_n especial_o of_o another_o fluid_a and_o that_o be_v by_o procure_v the_o coalition_n of_o several_a particle_n that_o before_o lie_v too_o scatter_v and_o disperse_v to_o exhibit_v the_o colour_n that_o afterward_o appear_v thus_o sometime_o when_o i_o have_v have_v a_o solution_n of_o gold_n so_o dilate_v that_o i_o doubt_v whether_o the_o liquor_n have_v real_o imbibe_v any_o true_a gold_n or_o no_o by_o pour_v in_o a_o little_a mercury_n i_o have_v be_v quick_o able_a to_o satisfy_v myself_o that_o the_o liquor_n contain_v gold_n that_o mettle_n after_o a_o little_a while_n clothing_n the_o surface_n of_o the_o quicksilver_n with_o a_o thin_a film_n of_o its_o own_o livery_n and_o chief_o though_o not_o only_o by_o this_o way_n of_o bring_v the_o minute_n part_n of_o body_n together_o in_o such_o number_n as_o to_o make_v they_o become_v notorious_a to_o the_o eye_n many_o of_o these_o colour_n seem_v to_o be_v generate_v which_o be_v produce_v by_o precipitation_n especial_o by_o such_o as_o be_v wont_a to_o be_v make_v with_o fair_a water_n as_o when_o resinous_n gum_n dissolve_v in_o spirit_n of_o wine_n be_v let_v fall_v again_o if_o the_o spirit_n be_v copious_o dilute_v with_o that_o weaken_n liquor_n and_o so_o out_o of_o the_o rectify_v and_o transparent_a butter_n of_o antimony_n by_o the_o bare_a mixture_n of_o fair_a water_n there_o will_v be_v plentiful_o precipitate_v that_o milkwhite_a substance_n which_o by_o have_v its_o loser_n salt_n well_o wash_v off_o be_v turn_v into_o that_o medicine_n which_o vulgar_a chemist_n be_v please_v to_o call_v mercurius_n vitæ_fw-la 23._o a_o five_o way_n by_o which_o a_o liquor_n may_v change_v the_o colour_n of_o a_o body_n be_v by_o dislocate_a the_o part_n and_o put_v they_o out_o of_o their_o former_a order_n into_o another_o and_o perhaps_o also_o alter_v the_o posture_n of_o the_o single_a corpuscle_n as_o well_o as_o their_o order_n or_o situation_n in_o respect_n of_o one_o another_o what_o certain_a kind_n of_o commotion_n or_o dislocation_n of_o the_o part_n of_o a_o body_n may_v do_v towards_o the_o change_a its_o colour_n be_v not_o only_o evident_a in_o the_o mutation_n of_o colour_n observable_a in_o quicksilver_n and_o some_o other_o concretes_n long_o keep_v by_o chemist_n in_o a_o convenient_a heat_n though_o in_o close_a vessel_n but_o in_o the_o obvious_a degeneration_n of_o colour_n which_o every_o body_n may_v take_v notice_n of_o in_o bruise_a cherry_n and_o other_o fruit_n by_o compare_v after_o a_o while_n the_o colour_n of_o the_o injure_v with_o that_o of_o the_o sound_a part_n of_o the_o same_o fruit._n and_o that_o also_o such_o liquor_n as_o we_o have_v be_v speak_v of_o may_v great_o 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endeavour_n to_o show_v both_o by_o the_o make_n of_o specular_a body_n white_a and_o the_o make_n of_o a_o white_a body_n specular_a 10._o in_o the_o five_o place_n then_o i_o will_v inform_v you_o that_o not_o to_o repeat_v what_o gassendus_fw-la observe_v concern_v water_n i_o have_v for_o curiosity_n sake_n distil_v quicksilver_n in_o a_o cucurbit_n fit_v with_o a_o capacious_a glass-head_n and_o observe_v that_o when_o the_o operation_n be_v perform_v by_o the_o degree_n of_o fire_n requisite_a for_o my_o purpose_n there_o will_v stick_v to_o the_o inside_n of_o the_o alembick_a a_o multitude_n of_o little_a round_a drop_n of_o mercury_n and_o as_o you_o know_v that_o mercury_n be_v a_o specular_a body_n so_o each_o of_o these_o little_a drop_n be_v a_o small_a round_a looking-glass_n and_o a_o multitude_n of_o they_o lie_v thick_a and_o near_o one_o another_o they_o do_v both_o in_o my_o judgement_n and_o that_o of_o those_o i_o invite_v to_o see_v it_o make_v the_o glass_n 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experiment_n i_o take_v a_o quantity_n fair_a water_n &_o put_v to_o it_o in_o a_o clear_a glass_n phial_a a_o convenient_a quantity_n of_o oil_n or_o spirit_n of_o turpentine_n because_o that_o liquor_n will_v not_o incorporate_v with_o water_n and_o yet_o be_v almost_o as_o clear_a and_o colourless_a as_o it_o these_o be_v gentle_o shake_v together_o the_o agitation_n break_v the_o oil_n which_o as_o i_o say_v be_v indisposed_a to_o mix_v like_o wine_n or_o milk_n per_fw-la minima_fw-la with_o the_o water_n into_o a_o multitude_n of_o little_a globe_n which_o each_o of_o they_o reflect_v outward_o a_o lucid_a image_n make_v the_o imperfect_a mixture_n of_o the_o two_o liquor_n appear_v whitish_a but_o if_o by_o vehement_o shake_v the_o glass_n for_o a_o competent_a time_n you_o make_v a_o further_a comminution_n of_o the_o oil_n into_o far_o more_o numerous_a and_o smaller_n globuli_fw-la and_o thereby_o confound_v it_o also_o better_a with_o the_o water_n the_o mixture_n will_v appear_v of_o a_o much_o great_a whiteness_n and_o almost_o like_a milk_n whereas_o if_o the_o glass_n be_v a_o while_n let_v alone_o the_o colour_n will_v by_o degree_n impair_v as_o the_o oily_a globe_n grow_v few_o and_o bigger_n and_o at_o length_n will_v quite_o vanish_v leave_v both_o the_o liquor_n distinct_a and_o diaphanous_a as_o before_o and_o such_o a_o trial_n have_v not_o ill_o succeed_v when_o instead_o of_o the_o colourless_a oil_n of_o turpentine_n i_o take_v a_o yellow_a mixture_n make_v of_o a_o good_a proportion_n of_o crude_a turpentine_n dissolve_v in_o that_o liquor_n and_o if_o i_o mis-rememb_a not_o it_o also_o succeed_v better_a than_o one_o will_v expect_v when_o i_o employ_v a_o oil_n bring_v by_o file_n of_o copper_n infuse_v in_o it_o to_o a_o deep_a green_n and_o this_o by_o the_o way_n may_v be_v the_o reason_n why_o often_o time_n when_o the_o oil_n of_o some_o spice_n and_o of_o anniseed_n etc._n etc._n be_v distil_v in_o a_o limbec_n with_o water_n the_o water_n as_o i_o have_v several_a time_n observe_v come_v over_o whitish_a and_o will_v perhaps_o continue_v so_o for_o a_o good_a while_n because_o if_o the_o fire_n be_v make_v too_o strong_a the_o subtle_a chemical_a oil_n be_v thereby_o much_o agitate_a and_o break_a and_o blend_v with_o the_o water_n in_o such_o numerous_a and_o minute_n globules_n as_o can_v easy_o in_o a_o short_a time_n emerge_n to_o the_o top_n of_o the_o water_n and_o whilst_o they_o remain_v in_o it_o make_v it_o for_o the_o reason_n new_o intimate_v look_v whitish_a and_o perhaps_o upon_o the_o same_o ground_n a_o cause_n may_v be_v render_v why_o hot_a water_n be_v observe_v to_o be_v usual_o more_o opacous_a and_o whitish_a than_o the_o same_o water_n cold_a the_o agitation_n turn_v the_o more_o spirituous_a or_o otherwise_o convenient_o dispose_a particle_n of_o the_o water_n into_o vapour_n thereby_o produce_v in_o the_o body_n of_o the_o liquor_n a_o multitude_n of_o small_a bubble_n which_o 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will_v add_v a_o experiment_n of_o our_o own_o make_v before_o we_o meet_v with_o that_o which_o though_o in_o many_o circumstance_n very_o differ_v serve_v to_o prove_v the_o same_o thing_n for_o have_v take_v of_o the_o deep_o red_a juice_n of_o buckthorn_n berry_n which_o i_o buy_v of_o the_o man_n that_o use_v to_o sell_v it_o to_o the_o apothecary_n to_o make_v their_o syrup_n de_fw-fr spina_n cervina_fw-la i_o let_v some_o of_o it_o drop_v upon_o a_o piece_n of_o white_a paper_n and_o have_v leave_v it_o there_o for_o many_o hour_n till_o the_o paper_n be_v grow_v dry_a again_o i_o find_v what_o i_o be_v incline_v to_o suspect_v namely_o that_o this_o juice_n be_v degenerate_v from_o a_o deep_a red_a to_o a_o dirty_a kind_n of_o greyish_a colour_n which_o in_o a_o great_a part_n of_o the_o stain_a paper_n seem_v not_o to_o have_v so_o much_o as_o a_o eye_n of_o red_a though_o a_o little_a spirit_n of_o salt_n or_o dissolve_v alcaly_a will_v turn_v this_o unpleasant_a colour_n 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perhaps_o considerable_a may_v occasion_v the_o miscarrying_a of_o a_o trial._n and_o i_o be_v willing_a also_o to_o take_v this_o occasion_n of_o advertise_v you_o in_o the_o repeat_n of_o the_o experiment_n mention_v in_o this_o treatise_n to_o make_v use_n of_o the_o juice_n of_o vegetable_n and_o other_o thing_n prepare_v for_o your_o trial_n as_o soon_o as_o ever_o they_o be_v ready_a lest_o one_o or_o other_o of_o they_o grow_v less_o fit_a if_o not_o quite_o unfit_a by_o delay_n and_o to_o estimate_v the_o event_n of_o the_o trial_n by_o the_o change_n that_o be_v produce_v present_o upon_o the_o due_a and_o sufficient_a application_n of_o active_n to_o passive_n as_o they_o speak_v because_o in_o many_o case_n the_o effect_n of_o such_o mixture_n may_v not_o be_v last_v and_o the_o new_o produce_v colour_n may_v in_o a_o little_a time_n degenerate_a but_o pyrophilus_n i_o forget_v to_o add_v to_o the_o two_o former_a observation_n late_o make_v about_o vegetable_n a_o three_o of_o the_o same_o import_n make_v in_o mineral_n substance_n by_o tell_v you_o that_o the_o better_a to_o satisfy_v a_o friend_n or_o two_o in_o this_o particular_a i_o sometime_o make_v according_a to_o some_o conjecture_n of_o i_o this_o experiment_n that_o have_v dissolve_v good_a silver_n in_o aquafortis_n and_o precipitate_v it_o with_o spirit_n of_o salt_n upon_o the_o first_o decant_v of_o the_o liquor_n the_o remain_a matter_n will_v be_v pure_o white_a but_o after_o it_o have_v lie_v a_o while_n uncover_v that_o part_n of_o it_o that_o be_v contiguous_a to_o the_o air_n will_v not_o only_o lose_v its_o whiteness_n but_o appear_v of_o a_o very_a dark_a and_o almost_o blackish_a colour_n i_o say_v that_o part_n that_o be_v contiguous_a to_o the_o air_n because_o if_o that_o be_v gentle_o take_v off_o the_o subjacent_a part_n of_o the_o same_o mass_n will_v appear_v very_o white_a till_o that_o also_o have_v continue_v a_o while_n expose_v to_o the_o air_n will_v likewise_o 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a_o competent_a quantity_n of_o the_o abovementioned_a spirit_n of_o urine_n annotation_n this_o experiment_n may_v bring_v some_o light_n to_o and_o receive_v some_o from_o a_o couple_n of_o other_o experiment_n that_o i_o remember_v i_o have_v meet_v with_o in_o the_o ingenious_a gassendus_n animadversion_n upon_o epicurus_n philosophy_n whilst_o i_o be_v turn_v over_o the_o leave_v of_o those_o learned_a commentary_n my_o eye_n be_v too_o weak_a to_o let_v i_o read_v such_o voluminous_a book_n quite_o through_o and_o i_o the_o less_o scruple_n notwithstanding_o my_o contrary_a custom_n in_o this_o treatise_n to_o set_v down_o these_o experiment_n of_o another_o because_o i_o shall_v a_o little_a improve_v the_o latter_a of_o they_o and_o because_o by_o compare_v there_o with_o that_o which_o i_o have_v last_o recite_v we_o may_v be_v assist_v to_o conjecture_n upon_o what_o account_n it_o be_v that_o oil_n of_o vitriol_n heighten_v the_o tincture_n of_o red-rose_a leave_n since_o 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