serve_v here_o take_v of_o that_o powder_n and_o put_v it_o on_o tile_n and_o calcine_v it_o again_o in_o the_o furnace_n four_o day_n it_o will_v become_v black_a and_o coagulate_v into_o one_o mass_n powder_n it_o and_o searce_v it_o calcine_v it_o again_o 5_o or_o 6_o day_n in_o the_o same_o furnace_n and_o it_o will_v become_v grey_a without_o coagulate_v any_o more_o or_o run_v into_o lump_n and_o will_v be_v in_o a_o condition_n fit_a to_o be_v dissolve_v of_o this_o powder_n which_o the_o italian_n call_v ramina_fw-la di_fw-it trecotte_n be_v make_v sky-coloured_a blue_a the_o colour_n of_o turcois_n the_o green_a of_o emerald_n and_o several_a other_o colour_n it_o must_v not_o be_v calcine_v above_o thrice_o for_o it_o will_v no_o long_o colour_n glass_n you_o may_v know_v if_o it_o be_v calcine_v well_o by_o cast_v some_o of_o it_o in_o a_o pot_n of_o boil_a glass_n if_o it_o swell_v as_o we_o have_v say_v before_o if_o not_o you_o must_v set_v it_o yet_o twenty_o four_o hour_n long_o in_o the_o furnace_n or_o rather_o begin_v a_o new_a process_n chap._n xxxiv_o another_o way_n of_o make_v thrice_o calcine_v copper_n with_o less_o charge_n and_o more_o ease_n workman_n who_o seek_v way_n to_o spare_v their_o pain_n will_v find_v this_o way_n of_o calcination_n less_o expensive_a than_o the_o other_o and_o almost_o of_o equal_a beauty_n take_v the_o scale_n which_o the_o brazier_n make_v when_o they_o hammer_v pan_n kettle_n or_o other_o work_n of_o brass_n as_o be_v much_o cheap_a than_o new_a copper_n to_o calcine_v these_o scale_n there_o be_v no_o need_n of_o stratification_n as_o we_o have_v show_v before_o in_o other_o copper_n which_o be_v troublesome_a they_o need_v only_o be_v well_o wash_v from_o all_o foulness_n and_o be_v well_o dry_v put_v they_o into_o one_o or_o more_o crucible_n and_o set_v they_o just_a into_o the_o mouth_n of_o the_o reverberatory-furnace_n for_o the_o space_n of_o four_o day_n be_v at_o length_n cool_v pound_n or_o grind_v they_o and_o fierce_o they_o then_o set_v that_o powder_n a_o second_o time_n in_o the_o same_o furnace_n to_o reverberate_v during_o four_o day_n long_o and_o you_o will_v have_v little_a ball_n of_o a_o black_a colour_n which_o you_o must_v pound_n and_o searce_v again_o and_o then_o put_v they_o the_o three_o time_n into_o the_o reverberatory_n and_o after_o four_o other_o day_n reduce_v they_o to_o powder_n as_o before_o thus_o it_o will_v be_v prepare_v with_o less_o expense_n and_o as_o good_a to_o colour_v glass_n which_o will_v be_v easy_a to_o see_v by_o make_v trial_n on_o melt_a glass_n for_o if_o it_o make_v it_o rise_v when_o you_o cast_v it_o on_o it_o be_v right_a chap._n xxxv_o another_o calcination_n of_o copper_n call_v ae_z ustum_fw-la the_o best_a and_o fine_a ae_z ustum_fw-la we_o have_v in_o france_n be_v bring_v from_o holland_n but_o several_a curious_a person_n make_v it_o themselves_o far_o fine_a that_o which_o make_v the_o beauty_n of_o the_o dutch_a be_v the_o sea-salt_n that_o they_o add_v to_o the_o sulphur_n and_o which_o they_o mix_v together_o in_o powder_n to_o stratifie_v the_o copper_n in_o a_o crucible_n cover_v and_o lute_v as_o we_o have_v show_v they_o take_v â…”_n of_o sulphur_n and_o one_o three_o of_o sea-water_n salt_n then_o they_o put_v the_o crucible_n on_o a_o hot_a fire_n of_o coal_n where_o they_o leave_v it_o till_o the_o sulphur_n be_v whole_o consume_v after_o that_o they_o take_v it_o out_o and_o it_o be_v of_o a_o iron-gray_a and_o red_a within_o the_o tincture_n it_o give_v glass_n be_v very_o fine_a and_o it_o be_v also_o serviceable_a for_o other_o use_v chap._n xxxvi_o another_o better_a way_n of_o make_v ae_z ustum_fw-la curious_a gentleman_n who_o employ_v themselves_o sometime_o in_o chemistry_n and_o do_v not_o grudge_v their_o time_n and_o charge_n as_o the_o workman_n do_v who_o get_v thereby_o their_o livelihood_n have_v far_o fine_a and_o more_o ingenious_a preparation_n of_o aes_fw-la ustum_fw-la which_o render_v it_o of_o great_a virtue_n and_o more_o power_n to_o thing_fw-mi we_o will_v only_o give_v the_o reader_n one_o of_o they_o take_v thin_a plate_n of_o the_o red_a copper_n which_o be_v the_o hard_a sort_n make_v it_o red-hot_a in_o a_o crucible_n or_o otherwise_o then_o extinguish_v it_o in_o a_o lee_n of_o urine_n wherein_o common_a salt_n have_v be_v dissolve_v and_o reiterate_v this_o process_n till_o the_o copper_n become_v of_o the_o colour_n of_o gold_n both_o within_o and_o without_o after_o that_o you_o must_v cement_v those_o plate_n with_o two_o part_n of_o sulphur_n two_o part_n of_o salt-petre_n and_o one_o part_n of_o vitriol_n calcine_v ad_fw-la rubedinem_fw-la the_o whole_a reduce_v to_o powder_n wherewith_o you_o must_v stratifie_v those_o plate_n in_o a_o crucible_n press_v close_o each_o layer_n or_o row_n than_o you_o must_v cover_v it_o with_o another_o crucible_n mouth_n to_o mouth_n the_o upper_a have_v a_o hole_n bore_v at_o bottom_n than_o lute_n they_o well_o together_o the_o lute_n be_v dry_a put_v the_o crucible_n in_o a_o wheel-fire_n round_a fire_n during_o six_o hour_n and_o hot_a ash_n underneath_o the_o first_o two_o hour_n the_o fire_n must_v be_v one_o foot_n distant_a from_o the_o crucible_n the_o two_o second_o hour_n one_o half_a foot_n near_o and_o the_o two_o last_o hour_n quite_o close_o cover_v the_o crucible_n you_o must_v take_v special_a care_n that_o the_o matter_n do_v not_o melt_v and_o that_o the_o fire_n be_v not_o too_o great_a for_o that_o will_v spoil_v all_o the_o crucible_n be_v cold_a you_o must_v take_v it_o out_o and_o empty_v the_o matter_n pound_n it_o well_o this_o be_v what_o we_o call_v ae_z ustum_fw-la to_o make_v it_o fit_a for_o use_v you_o must_v wash_v it_o to_o take_v away_o the_o sulphur_n and_o then_o dry_v it_o and_o keep_v it_o in_o a_o close_a vessel_n there_o be_v other_o curious_a person_n who_o make_v a_o ae_z ustum_fw-la yet_o fine_a than_o this_o and_o more_o penetrate_v in_o colour_n but_o the_o preparation_n be_v more_o costly_a and_o require_v more_o time_n for_o instead_o of_o brimstone_n and_o salt-petre_n they_o make_v use_v of_o a_o purify_a sulphur_n and_o fix_v with_o sal_fw-la ammoniac_a and_o instead_o of_o ordinary_a red_a vitriol_n they_o use_v roman_a vitriol_n which_o they_o prepare_v with_o lee_n of_o urine_n and_o a_o fusil_n salt_n which_o afterward_o they_o put_v in_o a_o reverberatory_n but_o since_o the_o other_o serve_v well_o enough_o for_o colour_v glass_n and_o be_v easy_a to_o make_v we_o shall_v not_o here_o give_v you_o the_o preparation_n of_o this_o last_o which_o will_v be_v too_o long_o and_o be_v more_o serviceable_a to_o several_a other_o purpose_n which_o experience_n testify_v chap._n xxxvii_o the_o way_n to_o make_v crocus_n veneris_fw-la since_o we_o have_v show_v the_o way_n to_o make_v crocus_n martis_n it_o be_v but_o reasonable_a we_o shall_v now_o show_v you_o how_o to_o make_v crocus_n veneris_fw-la we_o can_v pass_v by_o in_o silence_n the_o crocus_n which_o may_v be_v make_v of_o the_o ae_z ustum_fw-la we_o have_v teach_v in_o the_o precedent_n chap._n though_o we_o be_v certain_a the_o glass-makers_n will_v not_o make_v use_n of_o it_o by_o reason_n of_o the_o length_n of_o time_n require_v for_o prepare_v it_o but_o the_o curious_a who_o be_v ignorant_a of_o it_o will_v be_v glad_a to_o know_v it_o wherefore_o we_o here_o show_v it_o to_o oblige_v they_o take_v as_o much_o aes_fw-la ustum_fw-la of_o the_o precedent_n chap._n as_o you_o please_v add_v to_o it_o its_o weight_n of_o good_a verdigrease_n and_o as_o much_o shall_v ammoniac_a fix_v and_o fusil_n pound_n the_o whole_a together_o well_o and_o dry_v they_o over_o the_o fire_n in_o a_o iron_n fireshovel_n then_o pour_v into_o the_o shovel_n lee_n of_o urine_n and_o make_v the_o whole_a boil_n till_o the_o lee_n be_v entire_o consume_v then_o put_v on_o more_o of_o the_o same_o lee_n boil_v it_o till_o the_o lee_n be_v consume_v as_o before_o and_o reiterate_v it_o a_o three_o time_n then_o pound_n or_o grind_v the_o matter_n and_o put_v it_o in_o a_o reverberatory_n to_o calcine_v well_o than_o pound_n it_o again_o into_o a_o impalpable_a powder_n and_o put_v it_o into_o a_o earthen_a glaze_v pot_n pour_v upon_o the_o same_o lee_n of_o urine_n wherein_o you_o dissolve_v it_o viz._n to_o each_o pound_n of_o lee_n four_o ounce_n of_o sal_fw-la ammoniac_a fix_v and_o fusil_n then_o boil_v the_o whole_a over_o a_o little_a fire_n in_o ash_n for_o a_o quarter_n of_o a_o hour_n then_o decant_v off_o that_o lee_n into_o some_o fit_a vessel_n for_o that_o will_v contain_v the_o tincture_n of_o the_o aes_fw-la ustum_fw-la and_o of_o the_o green_a which_o it_o have_v extract_v put_v more_o lee_n upon_o the_o matter_n and_o boil_v
reason_n of_o their_o smallness_n but_o give_v a_o very_a fine_a colour_n the_o same_o may_v be_v do_v with_o ruby_n sapphire_n and_o other_o precious_a stone_n as_o chemist_n well_o know_v if_o i_o shall_v treat_v of_o all_o those_o colour_n in_o this_o tract_n it_o will_v make_v it_o half_o as_o big_a again_o as_o i_o design_v it_o and_o will_v be_v too_o prolix_a for_o our_o present_a purpose_n what_o we_o have_v show_v already_o be_v sufficient_a to_o make_v very_o fine_a work_n chap._n cx_o to_o make_v sulphur_n saturni_n to_o be_v use_v in_o past_z for_o all_o artificial_a gem_n isaac_n hollandus_n have_v so_o well_o show_v we_o the_o way_n to_o imitate_v the_o colour_n of_o all_o precious_a stone_n that_o i_o can_v pass_v by_o in_o silence_n this_o follow_a method_n of_o his_o extract_v from_o his_o work_n as_o it_o be_v not_o common_a nor_o his_o book_n see_v by_o every_o one_o and_o that_o there_o may_v be_v some_o that_o can_v understand_v he_o we_o think_v the_o reader_n may_v be_v glad_a to_o have_v it_o since_o it_o be_v the_o most_o curious_a way_n that_o can_v be_v make_v use_n of_o for_o this_o work_n the_o way_n to_o make_v his_o sulphur_n for_o it_o be_v this_o take_v ceruse_n or_o white-lead_a ground_n very_o small_a put_v it_o into_o a_o great_a glass_n body_n and_o pour_v thereon_o as_o much_o distil_a vinegar_n as_o will_v rise_v a_o palm_n above_o it_o and_o as_o the_o vinegar_n will_v rise_v and_o swell_v very_o much_o at_o first_o pour_v on_o you_o must_v take_v care_n to_o pour_v it_o on_o gentle_o till_o all_o the_o fury_n and_o noise_n be_v go_v then_o set_v this_o body_n on_o a_o hot_a furnace_n in_o sand_n there_o to_o evaporate_v the_o eight_o part_n of_o it_o away_o then_o let_v it_o cool_v and_o decant_v off_o the_o remainder_n of_o the_o vinegar_n which_o will_v be_v well_o colour_v and_o full_a of_o salt_n which_o keep_v in_o another_o glass_n vessel_n then_o pour_v fresh_a distil_a vinegar_n on_o the_o remainder_n of_o the_o ceruse_n set_v it_o again_o on_o the_o furnace_n to_o evaporate_v as_o before_o and_o decant_v off_o that_o vinegar_n as_o the_o former_a reiterate_v this_o process_n of_o put_v fresh_a vinegar_n on_o your_o matter_n and_o evaporate_n it_o and_o decant_v it_o off_o till_o it_o have_v no_o further_a colour_n nor_o sweetness_n which_o common_o happen_v about_o the_o six_o time_n take_v all_o your_o colour_a vinegar_n and_o careful_o filter_n they_o off_o then_o take_v one_o or_o more_o glass_n cucurbit_n and_o evaporate_v all_o the_o vinegar_n over_o a_o gentle_a fire_n and_o you_o will_v find_v remain_v at_o bottom_n a_o salt_n of_o saturn_n of_o lead_n very_o white_a then_o take_v a_o glass_n matras_n lute_n it_o well_o down_o to_o the_o middle_n of_o the_o body_n and_o put_v your_o salt_n of_o lead_n in_o it_o and_o put_v it_o on_o a_o sand_n furnace_n over_o a_o gentle_a fire_n for_o the_o space_n of_o twenty_o four_o hour_n cover_v it_o with_o sand_n up_o to_o the_o neck_n then_o take_v out_o your_o salt_n which_o ought_v to_o be_v as_o red_a as_o cinnabar_fw-la and_o grind_v it_o fine_a on_o a_o marble_n if_o it_o be_v yellow_a you_o must_v put_v it_o on_o the_o fire_n again_o for_o twenty_o four_o hour_n long_o and_o take_v care_v it_o do_v melt_v for_o then_o all_o be_v spoil_v when_o your_o salt_n of_o lead_n be_v perfect_a as_o we_o have_v show_v you_o must_v put_v it_o again_o into_o a_o glass_n cucurbit_n and_o pour_v distil_v vinegar_n on_o it_o as_o before_o and_o decant_v it_o off_o when_o it_o be_v enough_o colour_v and_o put_v fresh_a vinegar_n on_o the_o remain_a salt_n and_o continue_v this_o process_n till_o all_o the_o salt_n be_v dissolve_v and_o the_o faeces_fw-la or_o dregs_o all_o separate_v after_o that_o put_v all_o these_o colour_a vinegar_n into_o glass_n vessel_n and_o let_v they_o stand_v six_o day_n to_o settle_v than_o filter_n they_o careful_o and_o separate_v all_o the_o faeces_fw-la then_o put_v all_o these_o filter_v vinegar_n into_o a_o great_a glass_n body_n to_o evaporate_v as_o before_o and_o you_o will_v find_v at_o the_o bottom_n a_o very_a white_a salt_n of_o lead_n sweet_a as_o sugar_n this_o salt_n be_v well_o dry_v dissolve_v it_o afresh_o in_o common_a water_n and_o let_v it_o stand_v six_o day_n that_o all_o the_o faeces_fw-la may_v precipitate_v to_o the_o bottom_n then_o filter_n that_o water_n and_o evaporate_v it_o in_o a_o glass_n cucurbite_n over_o a_o gentle_a fire_n as_o we_o have_v say_v and_o you_o will_v have_v at_o bottom_n a_o salt_n more_o white_a than_o snow_n and_o as_o sweet_a as_o sugar_n reiterate_v this_o method_n of_o dissolve_v in_o fair_a water_n filter_v and_o evaporate_n till_o three_o time_n then_o take_v your_o saccharum_n saturni_n and_o put_v it_o in_o a_o glass_n body_n in_o a_o sand_n furnace_n over_o a_o temperate_a heat_n where_o leave_v it_o for_o several_a day_n without_o augment_v the_o fire_n than_o it_o will_v become_v red_a than_o cinnabar_fw-la and_o give_v a_o calx_fw-la fine_a than_o wheaten_n flour_n it_o be_v this_o calx_fw-la thus_o purify_v from_o all_o its_o terrestreity_n which_o be_v call_v sulphur_n of_o saturn_n now_o in_o make_v past_z for_o emerald_n sapphire_n granat_n topaz_n chrysolite_n blue_a and_o other_o colour_n you_o must_v employ_v it_o instead_o of_o minium_n in_o the_o same_o dose_n we_o have_v show_v in_o the_o precedent_a chapter_n of_o this_o five_o book_n observe_v all_o we_o have_v note_v in_o the_o subject_a of_o bake_v and_o proceed_v as_o in_o chap._n 94._o then_o you_o will_v have_v stone_n of_o different_a colour_n far_o fair_a than_o the_o natural_a one_o and_o which_o can_v scarce_o be_v distinguish_v from_o they_o the_o past_z make_v with_o this_o sulphur_n will_v not_o have_v that_o grease_n and_o yellowness_n which_o other_o have_v and_o will_v not_o be_v so_o apt_a to_o spot_v by_o the_o breath_n upon_o this_o account_n the_o curious_a will_v have_v no_o cause_n to_o repent_v of_o the_o trouble_n of_o make_v this_o sulphur_n though_o the_o work_v be_v very_o laborious_a they_o also_o know_v that_o all_o fine_a work_n require_v very_o pure_a matter_n and_o that_o they_o can_v have_v that_o purity_n without_o the_o great_a time_n and_o care_n of_o those_o who_o undertake_v they_o i_o may_v also_o here_o say_v that_o this_o work_n well_o carry_v on_o be_v more_o precious_a than_o it_o seem_v to_o be_v except_o to_o those_o who_o be_v acquaint_v with_o it_o for_o the_o sweetness_n this_o lead_n have_v acquire_v by_o the_o preparation_n we_o have_v show_v be_v a_o true_a sign_n of_o its_o purity_n that_o it_o be_v fit_a to_o make_v a_o medicine_n very_o homogeneous_a to_o nature_n i_o do_v say_v that_o this_o preparation_n alone_o we_o have_v here_o show_v be_v sufficient_a for_o so_o elevate_v a_o mystery_n as_o that_o whereof_o we_o speak_v but_o i_o can_v also_o conceal_v that_o it_o be_v the_o chief_a part_n of_o the_o work_n especial_o if_o you_o observe_v some_o little_a circumstance_n which_o isaac_n hollandus_n have_v omit_v to_o mention_v whether_o he_o be_v ignorant_a of_o they_o or_o think_v they_o not_o necessary_a to_o his_o preparation_n i_o can_v tell_v the_o learned_a will_v easy_o penetrate_v into_o this_o mystery_n and_o other_o that_o have_v a_o true_a desire_n to_o know_v it_o will_v find_v subject_a to_o exercise_v their_o wit_n on_o in_o embrace_v so_o serious_a a_o study_n to_o penetrate_v into_o the_o depth_n of_o it_o chap._n cxi_o the_o way_n to_o make_v very_o hard_a past_z with_o sulphur_n of_o saturn_n and_o to_o give_v they_o all_o the_o colour_n of_o precious_a stone_n this_o paste_n be_v a_o consequent_a of_o the_o precedent_a operation_n because_o we_o employ_v therein_o the_o same_o sulphur_n of_o saturn_n we_o just_a now_o mention_v and_o that_o which_o chief_o cause_v its_o beauty_n be_v that_o all_o the_o ingredient_n we_o use_v in_o it_o be_v perfect_o purify_v to_o do_v this_o take_v ten_o pound_n of_o natural_a crystal_n prepare_v with_o six_o pound_n of_o salt_n extract_v from_o polverine_n of_o rochetta_n purify_v pound_v and_o well_o sear_v as_o we_o have_v show_v in_o chap._n 7_o whereunto_o add_v two_o pound_n of_o sulphur_n of_o saturn_n chemical_o prepare_v as_o in_o the_o precede_a chapter_n then_o mix_v these_o three_o powder_n well_o together_o and_o put_v they_o into_o a_o earthen_a glaze_v pan_n and_o cast_v on_o they_o a_o little_a common_a fair_a water_n to_o reduce_v these_o powder_n into_o a_o lump_n something_o hard_o afterward_o divide_v they_o into_o several_a parcel_n of_o about_o three_o ounce_n each_o make_v a_o hole_n in_o the_o middle_a the_o better_a to_o dry_v they_o at_o the_o sun_n be_v well_o dry_v put_v they_o into_o a_o earthen_a pot_n well_o
furnace_n vault_n or_o on_o the_o upper_a vault_n take_v special_a care_n that_o they_o do_v melt_v let_v they_o remain_v there_o for_o three_o or_o four_o day_n or_o until_o they_o be_v very_o well_o calcine_v this_o do_v resolve_v they_o into_o a_o impalpable_a powder_n add_v thereto_o four_o pound_n of_o calx_fw-la of_o lead_n and_o tin_n prepare_v and_o calcine_v according_a to_o direction_n in_o chap._n 148._o and_o chap._n 81._o four_o pound_n of_o white_a calcine_v tartar_n prescribe_v in_o chap._n 5._o and_o elsewhere_o these_o be_v all_o mix_a and_o very_o fine_o pulverise_v put_v they_o they_o into_o your_o glaze_v pot_n at_o the_o glass-house_n furnace_n to_o melt_v and_o refine_v thence_o throw_v the_o metal_n into_o water_n and_o again_o when_o dry_a into_o the_o pot_n to_o melt_v cast_v it_o a_o second_o time_n into_o the_o water_n and_o dry_v it_o let_v it_o melt_v and_o refine_v over-again_a in_o the_o pot_n for_o some_o hour_n and_o it_o will_v be_v fit_a for_o use_v consider_v always_o the_o lead_n which_o be_v among_o the_o other_o ingredient_n and_o be_v very_o careful_a that_o you_o let_v none_o of_o it_o remain_v in_o the_o pot_n when_o you_o throw_v the_o matter_n out_o into_o the_o water_n for_o it_o will_v be_v apt_a to_o precipitate_v to_o the_o bottom_n and_o this_o for_o several_a reason_n elsewhere_o give_v too_o tedious_a and_o needless_a to_o be_v here_o repeat_v chap._n clxiv_o a_o excellent_a preparation_n of_o fusible_a manganese_n to_o be_v use_v in_o make_v of_o our_o red_a enamel_n we_o have_v already_o give_v sufficient_a direction_n to_o prepare_v manganese_n of_o piedmont_n in_o chap._n 18._o for_o ting_a these_o matter_n of_o which_o we_o have_v already_o discourse_v but_o for_o red_a and_o rose-colour_n enamel_n there_o be_v some_o more_o exquisite_a ingredient_n and_o preparation_n require_v which_o we_o think_v proper_a to_o give_v account_n of_o here_o before_o we_o speak_v of_o the_o enamel_n itself_o any_o other_o than_o manganese_n of_o piedmont_n will_v not_o serve_v your_o turn_n for_o that_o only_o be_v fit_a for_o our_o use_n to_o contribute_v to_o the_o fairness_n and_o life_n of_o the_o colour_n take_v therefore_o equal_a quantity_n of_o this_o manganese_n and_o salt-petre_a as_o much_o as_o you_o please_v and_o let_v they_o reverberate_v and_o calcine_v in_o a_o earthen_a pot_n in_o your_o furnace_n twenty_o four_o hour_n take_v it_o off_o and_o wash_v it_o well_o in_o warm_a water_n to_o separate_v the_o salt-petre_a dry_v it_o well_o and_o the_o mass_n will_v be_v of_o a_o red_a colour_n to_o this_o add_v a_o equal_a quantity_n of_o sal-armoniack_a grind_v these_o on_o a_o marble_n with_o distil_a vinegar_n as_o painter_n do_v their_o colour_n dry_v it_o and_o reduce_v it_o to_o powder_n put_v it_o afterward_o into_o a_o strong_a matrass_n or_o bolt-head_n of_o glass_n big-bellyed_a and_o long-necked_a there_o to_o sublimate_v about_o twelve_o hour_n break_v your_o matrass_n mix_v all_o the_o volatile_a and_o fix_a part_n together_o add_v the_o same_o quantity_n of_o sal-armoniack_a as_o there_o be_v flower_n and_o take_v care_n to_o weigh_v they_o before_o composition_n grind_v pulverize_v and_o sublime_a as_o before_o repeat_v this_o until_o your_o manganese_n remain_v fusible_a in_o the_o bottom_n of_o the_o matras_n and_o this_o be_v that_o which_o you_o must_v preserve_v to_o thing_fw-mi crystal_n with_o and_o make_v it_o ruddy_a and_o diaphanous_a or_o transparent_a as_o a_o ruby_n chap._n clxv_o the_o way_n to_o make_v a_o fix_a sulphur_n to_o be_v use_v in_o composition_n for_o enamel_n this_o fix_a sulphur_n serve_v for_o several_a use_n in_o chemistry_n and_o very_o convenient_a for_o oblige_v young_a artist_n now_o though_o it_o be_v not_o so_o unavoidable_o necessary_a for_o make_v red_a enamel_n yet_o we_o will_v not_o omit_v it_o here_o because_o it_o contribute_v to_o our_o prescribe_v two_o sort_n of_o way_n for_o it_o as_o well_o as_o to_o satisfy_v the_o more_o curious_a goldsmith_n put_v flower_n of_o sulphur_n as_o much_o as_o you_o please_v into_o a_o glass_n cucurbite_n lute_v at_o bottom_n pour_v thereto_o oyl-olive_n as_o much_o as_o will_v drown_v the_o matter_n by_o two_o inch_n set_v the_o cucurbite_n on_o a_o violent_a sand-furnace_n for_o a_o full_a hour_n then_o take_v it_o off_o and_o pour_v in_o strong_a vinegar_n and_o the_o sulphur_n will_v soon_o precipitate_v and_o the_o oil_n ascend_v on_o the_o surface_n of_o the_o vinegar_n decant_v this_o from_o the_o sulphur_n into_o another_o vessel_n and_o put_v in_o more_o fresh_a oil_n as_o before_o do_v thus_o thrice_o and_o you_o will_v have_v at_o length_n a_o fix_a sulphur_n to_o make_v use_n of_o for_o enamel_n chap._n clxvi_o another_o fix_v incombustible_a sulphur_n there_o be_v yet_o another_o way_n for_o fixation_n of_o sulphur_n for_o the_o same_o use_n and_o several_a chemical_a operation_n wherein_o it_o have_v very_o great_a virtue_n make_v strong_a lie_n of_o quicklime_n and_o harsh_a oak-ash_n put_v therein_o flower_n of_o sulphur_n until_o the_o liquid_a surface_n be_v four_o inch_n upmost_a boil_v it_o for_o a_o considerable_a while_n over_o the_o fire_n this_o will_v cleanse_v and_o purge_v the_o sulphur_n from_o its_o unctuosity_n and_o corruption_n and_o qualify_v it_o for_o your_o purpose_n separate_v the_o lie_n from_o the_o sulphur_n and_o dry_v it_o you_o will_v have_v it_o white_a fix_v and_o incombustible_a exceed_v proper_a for_o the_o goldsmith_n to_o make_v use_n of_o on_o gold_n we_o can_v prescribe_v several_a way_n more_o to_o make_v sulphur_n fix_v and_o fusible_a but_o these_o two_o already_o give_v be_v sufficient_a for_o our_o purpose_n we_o reserve_v they_o therefore_o for_o some_o other_o place_n to_o be_v discover_v among_o matter_n more_o excellent_a and_o of_o great_a curiosity_n for_o the_o advantage_n of_o such_o person_n who_o study_v the_o improvement_n and_o profounder_n part_n of_o chemistry_n chap._n clxvii_o to_o extract_n spirit_n of_o saturn_n a_o excellent_a ingredient_n for_o enamel_n and_o glass-work_n we_o think_v fit_a to_o propose_v all_o the_o preparation_n proper_a for_o make_v a_o red_a enamel_n before_o we_o show_v the_o way_n to_o make_v it_o because_o the_o ingredient_n to_o be_v use_v must_n first_o be_v provide_v or_o we_o can_v proceed_v regular_o to_o our_o business_n among_o the_o rest_n this_o spirit_n of_o saturn_n be_v not_o to_o be_v lay_v aside_o which_o though_o consider_v here_o as_o useful_a only_o in_o enamel_n and_o glass-work_n may_v have_v other_o virtue_n familiar_a to_o the_o learned_a but_o for_o our_o business_n it_o be_v such_o as_o do_v very_o noble_o heighten_v and_o much_o improve_v the_o matter_n for_o our_o work_n and_o for_o any_o other_o not_o immediate_o relate_v to_o we_o here_o we_o pass_v over_o in_o silence_n reduce_v good_a litharge_n as_o much_o as_o you_o please_v to_o a_o impalpable_a powder_n and_o set_v it_o in_o a_o glaze_v earthen_a vessel_n over_o a_o still_a fire_n add_v to_o this_o good_a distil_a vinegar_n till_o four_o inch_n above_o it_o mix_v they_o well_o together_o and_o then_o let_v they_o settle_v until_o the_o vinegar_n become_v milk-coloured_n which_o will_v be_v in_o a_o little_a time_n decant_v this_o vinegar_n off_o gentle_o and_o put_v on_o fresh_a continue_v to_o do_v thus_o until_o it_o admit_v of_o no_o more_o colour_n then_o put_v all_o the_o milk-coloured_n vinegar_n into_o a_o glaze_v earthen_a vessel_n and_o let_v it_o stand_v until_o the_o lead_v precipitate_a to_o the_o bottom_n from_o whence_o pour_v of_o the_o clear_a vinegar_n which_o will_v be_v at_o top_n and_o that_o milk-couloured_a sediment_n which_o remain_v be_v what_o we_o call_v spirit_n of_o saturn_n though_o improper_o and_o that_o which_o we_o will_v make_v use_n of_o for_o the_o enamel_n and_o glass_n if_o it_o do_v not_o precipitate_v well_o to_o your_o like_n and_o that_o the_o vinegar_n at_o top_n be_v not_o very_o clear_a cast_v among_o it_o some_o cold_a water_n if_o that_o will_v do_v and_o that_o your_o vinegar_n still_o continue_v muddy_a set_v all_o the_o water_n and_o vinegar_n together_o over_o a_o gentle_a fire_n to_o evaporate_v and_o thus_o you_o will_v have_v the_o more_o spirituous_a part_n of_o your_o vinegar_n a_o sediment_n in_o the_o bottom_n of_o the_o vessel_n which_o be_v exceed_o useful_a for_o glass-work_n keep_v it_o together_o with_o the_o rest_n of_o the_o saturn_n for_o use_v this_o noble_a preparation_n which_o we_o call_v spirit_n of_o saturn_n do_v indeed_o contain_v it_o but_o you_o must_v have_v skill_n to_o extract_v it_o thereout_o to_o say_v that_o it_o be_v all_o spirit_n of_o saturn_n be_v untrue_a for_o it_o be_v that_o wherein_o the_o spirit_n be_v contain_v and_o from_o whence_o it_o may_v be_v more_o easy_o and_o better_a separate_v than_o from_o the_o mass_n of_o lead_n i_o propose_v
cold_a take_v they_o out_o and_o paint_v they_o and_o put_v they_o in_o again_o to_o bake_v a_o second_o time_n observe_v what_o direction_n we_o have_v already_o give_v concern_v these_o matter_n and_o when_o the_o fire_n be_v go_v out_o and_o the_o furnace_n cold_a you_o have_v the_o ware_n in_o perfection_n ready_a to_o take_v out_o for_o use_v you_o may_v make_v your_o china-ware_n also_o of_o pure_a earth_n let_v it_o not_o be_v red_a tho_o but_o white_a or_o grace_n you_o may_v try_v the_o sufficiency_n of_o it_o after_o it_o be_v prepare_v by_o bake_v some_o beforehand_o and_o when_o it_o come_v out_o of_o the_o furnace_n sound_n and_o uncracked_a it_o be_v good_a and_o fit_a for_o your_o purpose_n the_o preparation_n consist_v in_o dry_v it_o well_o and_o reduce_v it_o to_o a_o very_a fine_a powder_n then_o put_v it_o into_o fair_a water_n wherein_o have_v be_v already_o dissolve_v a_o little_a gum-arabic_n but_o most_o of_o those_o that_o make_v it_o employ_v only_o water_n without_o gum_n after_o this_o you_o may_v make_v your_o dish_n set_v they_o to_o dry_v polish_v dry_v glaze_n bake_n paint_v and_o finish_v they_o as_o before_o all_o which_o those_o who_o work_n at_o they_o know_v better_o than_o i_o can_v express_v it_o chap._n cxcvi_o how_o to_o enamel_n the_o china_n for_o this_o take_v of_o our_o milkwhite_a enamel_n chap._n 149._o grind_v it_o very_o fine_a as_o painter_n do_v their_o colour_n put_v the_o powder_n afterward_o into_o a_o glasscucurbit_a pour_v some_o aquafortis_n thereon_o let_v it_o digest_v a_o little_a to_o cleanse_v off_o its_o impurity_n and_o become_v fine_a and_o transparent_a then_o pour_v off_o the_o aquafortis_n wash_v the_o powder_n in_o water_n over_o and_o over_o again_o grind_v it_o afterward_o with_o a_o little_a gum-water_n on_o your_o marble_n and_o so_o glaze_v the_o vessel_n with_o it_o within_o and_o without_o dry_v they_o in_o the_o air_n and_o bake_v they_o as_o before_o in_o the_o furnace_n or_o you_o may_v heat_v the_o vessel_n to_o a_o redness_n in_o the_o furnace_n and_o melt_v the_o enamel_n when_o it_o be_v in_o a_o perfect_a fusion_n dip_v the_o small_a vessel_n therein_o and_o pour_v of_o it_o on_o the_o large_a for_o they_o will_v take_v no_o more_o on_o they_o than_o will_v serve_v they_o set_v they_o by_o turn_n in_o the_o furnace_n stop_v it_o very_o well_o to_o avoid_v the_o air_n bake_n cool_v your_o furnace_n and_o finish_v they_o as_o before_o then_o take_v out_o the_o dish_n paint_v and_o bake_v they_o over_o again_o observe_v all_o our_o former_a direction_n chap._n cxcvii_o to_o paint_v the_o china_n this_o be_v do_v as_o the_o enamel_n discourse_v of_o in_o chap._n 192._o but_o much_o more_o easy_o the_o figure_n be_v only_o just_o dash_v over_o in_o comparison_n to_o they_o however_o you_o must_v grind_v your_o colour_n with_o oil_n of_o spike_n on_o the_o marble_n as_o we_o have_v say_v already_o and_o so_o paint_v on_o the_o dish_n story_n landscape_n or_o any_o other_o fancy_n but_o you_o must_v never_o expect_v to_o have_v they_o thereon_o so_o complete_a and_o handsome_a as_o those_o paint_a on_o the_o enamel_a plate_n because_o the_o former_a be_v finish_v stand_v and_o so_o enlarge_v in_o length_n or_o breadth_n whereas_o the_o other_o be_v do_v on_o flat_n and_o lie_v beside_o the_o dish_n be_v for_o the_o most_o part_n round_o and_o not_o so_o easy_o paint_v for_o if_o they_o can_v be_v as_o neat_o do_v as_o the_o enamel_n they_o will_v be_v excessive_a dear_a chap._n cxcviii_o to_o gilled_a china_n you_o must_v first_o grind_v some_o shade-earth_n on_o a_o marble_n with_o linseed-oyl_n prepare_v as_o shall_v be_v show_v in_o chap._n 200._o with_o which_o trace_n out_o your_o figure_n which_o must_v be_v two_o whole_a day_n a_o dry_n after_o this_o apply_v very_o thin_a leaf-gold_n and_o with_o a_o sharp_a graver_n shape_n the_o figure_n and_o then_o put_v the_o dish_n in_o a_o oven_n as_o soon_o as_o the_o batch_n of_o bread_n be_v draw_v out_o let_v the_o heat_n be_v no_o great_a than_o one_o hand_n may_v endure_v else_o the_o vessel_n will_v crack_v leave_v they_o in_o it_o for_o two_o or_o three_o hour_n or_o more_o if_o the_o oven_n be_v not_o too_o hot_a you_o may_v else_o make_v use_n of_o our_o own_o furnace_n by_o give_v it_o the_o same_o moderate_a degree_n of_o heat_n as_o experience_a person_n be_v well_o acquaint_v with_o chap._n cxcix_o another_o way_n this_o be_v much_o more_o handsome_a and_o lively_a beside_o that_o it_o can_v be_v efface_v you_o may_v with_o it_o gild_v vessel_n entire_o or_o border_n or_o give_v they_o any_o lustre_n you_o think_v convenient_a for_o ornament_n and_o it_o will_v look_v as_o well_o as_o fine_a gold_n you_o must_v first_o wet_v over_o the_o place_n you_o will_v gild_v with_o gum-water_n light_o then_o apply_v your_o leave_n and_o so_o let_v they_o dry_a this_o be_v enough_o for_o plain_a gilding_n but_o if_o you_o will_v have_v it_o carve_v or_o figure_v you_o must_v make_v use_n of_o a_o steel-grave_a and_o afterward_o bathe_v the_o gold_n with_o water_n wherein_o borax_n have_v be_v dissolve_v powder_v it_o in_o the_o mean_a time_n with_o crystaline_a powder_n or_o milkwhite_a enamel_n reduce_v to_o a_o very_a fine_a powder_n then_o set_v the_o dish_n on_o a_o reverberatory_n fire_n to_o melt_v and_o be_v polish_a thus_o you_o will_v have_v as_o fine_a a_o piece_n of_o ware_n as_o can_v be_v chap._n cc._o the_o way_n to_o prepare_v linseed-oyl_n for_o gild_v of_o china_n it_o be_v but_o just_a we_o shall_v discharge_v our_o promise_n of_o prescribe_v this_o preparation_n take_v a_o paris_n pint_n of_o linseed-oyl_n in_o a_o earthen_a pot_n which_o will_v hold_v about_o two_o paris_n pint_n put_v this_o on_o a_o fire_n and_o when_o it_o begin_v to_o boil_v throw_v in_o twice_o the_o bigness_n of_o a_o small_a egg_n of_o gum-arabic_n pulverise_v stir_v all_o well_o until_o it_o be_v dissolve_v then_o put_v in_o a_o onion_n of_o a_o ordinary_a size_n and_o the_o like_a weight_n of_o garlic_n cut_v small_a when_o the_o oil_n boil_v well_o and_o swell_v up_o by_o the_o force_n of_o the_o good_a fire_n which_o must_v be_v underneath_o pour_v it_o out_o into_o another_o such_o pot_n and_o so_o in_o and_o out_o of_o each_o pot_n to_o the_o other_o until_o all_o be_v very_o well_o mix_v then_o put_v it_o on_o the_o fire_n again_o add_v half_o a_o eggshell_n of_o powder_n of_o mastic_n and_o stir_v it_o very_o well_o as_o soon_o as_o it_o boil_v again_o it_o will_v foam_v and_o have_v a_o great_a froth_n which_o must_v be_v scum_v off_o and_o then_o take_v it_o off_o the_o fire_n and_o brew_v the_o ingredient_n together_o with_o the_o two_o pot_n as_o before_o continue_v to_o do_v thus_o with_o it_o or_o stir_v it_o on_o the_o fire_n until_o it_o rise_v no_o more_o this_o do_v take_v a_o very_a dry_a toast_n of_o white_a bead_n to_o take_v off_o the_o grease_n the_o oil_n still_o boil_a and_o when_o you_o put_v in_o the_o toast_n you_o must_v at_o the_o same_o time_n put_v in_o some_o pin-dust_n stir_v all_o well_o together_o and_o let_v it_o stand_v for_o twenty_o four_o hour_n afterward_o strain_v the_o oil_n through_o a_o linen-cloth_n in_o which_o be_v some_o very_a fine_a sand_n the_o better_a to_o filtrate_a it_o and_o take_v off_o the_o grease_n and_o so_o you_o will_v have_v it_o pure_a and_o clear_a which_o bottle_n up_o for_o your_o use._n or_o you_o may_v both_o way_n be_v good_a enough_o first_o mix_v with_o the_o oil_n two_o ounce_n of_o gold_n litharge_v pulverise_v add_v the_o gum-arabic_n as_o soon_o as_o it_o begin_v to_o boil_v and_o to_o purify_v it_o let_v it_o filter_n through_o a_o linen-cloth_n full_a of_o sand_n while_o it_o be_v hot_a into_o a_o glass-bottle_n wherein_o be_v already_o half_a a_o ounce_n of_o fine_a camphire_n powder_n shake_v the_o bottle_n very_o well_o until_o the_o oil_n be_v cold_a afterward_o lay_v it_o in_o the_o sun_n for_o fifteen_o day_n and_o it_o will_v be_v entire_o purge_v and_o the_o long_a it_o be_v keep_v will_v be_v the_o better_a this_o be_v all_o we_o have_v to_o say_v at_o present_a about_o china-ware_n until_o we_o have_v further_o enlarge_v our_o knowledge_n in_o the_o matter_n which_o we_o have_v not_o much_o study_v because_o we_o do_v not_o intend_v to_o treat_v of_o it_o however_o we_o afterward_o think_v it_o incumbent_n on_o we_o so_o to_o discourse_v thereof_o as_o a_o art_n dependent_a on_o we_o and_o we_o hope_v the_o reader_n will_v take_v this_o in_o good_a part_n until_o we_o may_v give_v he_o something_o more_o at_o large_a of_o the_o art_n of_o glass_n book_n ix_o show_v the_o method_n of_o draw_v all_o sort_n of_o story_n
set_v all_o in_o a_o kettle_n over_o a_o fire_n till_o the_o water_n be_v milk-warm_a keep_v your_o hand_n in_o it_o until_o you_o can_v bear_v the_o heat_n no_o long_o then_o take_v it_o off_o cover_v it_o with_o a_o cloth_n that_o the_o heat_n may_v continue_v the_o long_o let_v it_o repose_v for_o twenty_o four_o hour_n then_o run_v off_o the_o lixivium_n and_o keep_v it_o for_o the_o follow_a purpose_n get_v a_o clean_a earthen-pot_n and_o put_v therein_o three_o quart_n of_o fair_a water_n to_o half_a the_o lixivium_n order_n a_o fire_n and_o let_v this_o boil_v thereon_o which_o when_o it_o begin_v to_o do_v put_v in_o a_o ounce_n of_o the_o grain_n pound_v impalpable_o in_o a_o brass-mortar_n and_o sear_v then_o pound_n a_o little_a crude_a tartar_n to_o take_v off_o the_o remain_a part_n of_o the_o grain_n on_o the_o bottom_n and_o side_n of_o your_o mortar_n and_o so_o put_v it_o in_o with_o the_o grain_n when_o the_o water_n begin_v to_o boil_v again_o take_v it_o off_o in_o a_o instant_n and_o set_v it_o to_o cool_v this_o do_v and_o the_o water_n cold_a take_v the_o shearing_n prepare_v in_o the_o former_a chapter_n and_o let_v they_o stain_v therein_o about_o half_a a_o hour_n afterward_o squeeze_v it_o into_o another_o pot_n by_o expression_n and_o after_o you_o have_v thus_o draw_v off_o all_o the_o tincture_n put_v the_o shearing_n into_o the_o last_o pot_n stir_v they_o about_o very_o well_o with_o a_o small_a stick_n that_o they_o may_v stain_v the_o soon_o boil_v all_o for_o about_o half_a a_o hour_n over_o a_o small_a fire_n else_o the_o tincture_n will_v become_v black_a then_o take_v the_o shearing_n out_o and_o put_v they_o well_o tinge_v into_o a_o vessel_n of_o cold_a water_n about_o half_a a_o hour_n after_o pour_v off_o the_o water_n gentle_o and_o so_o put_v fresh_a on_o again_o then_o press_v and_o spread_v they_o to_o dry_v in_o a_o clean_a place_n where_o no_o dust_n can_v come_v at_o they_o this_o do_v make_v the_o follow_a lixivium_n put_v on_o a_o hempen-cloth_n double_v vine-stalk-ash_n or_o ash_n of_o willow_n or_o some_o other_o light_a wood_n pour_v thereon_o by_o degree_n cold_a water_n let_v it_o strain_v through_o into_o a_o vessel_n set_v underneath_o pour_v it_o again_o on_o the_o ash_n and_o when_o it_o be_v all_o run_v through_o set_v it_o to_o settle_v for_o twenty_o four_o hour_n that_o the_o ash_n which_o it_o carry_v off_o may_v fall_v to_o the_o bottom_n this_o do_v pour_v the_o lixivium_n by_o degree_n into_o another_o vessel_n reject_v the_o sediment_n put_v your_o shearing_n into_o this_o have_v warm_v it_o when_o it_o begin_v to_o be_v cold_a let_v it_o boil_v over_o a_o gentle_a fire_n and_o it_o will_v become_v red_a take_v a_o little_a of_o the_o shearing_n press_v they_o well_o and_o if_o it_o remain_v without_o colour_n take_v off_o the_o kettle_n immediate_o for_o the_o lixivium_n have_v extract_v it_o entire_o spread_v a_o linen-cloth_n over_o a_o freestone_n bowl_n set_v the_o shearing_n therein_o and_o pour_v on_o the_o lixivium_n by_o little_a and_o little_a to_o strain_v and_o yield_v the_o tincture_n then_o squeeze_v the_o cloth_n and_o the_o shearing_n therein_o to_o press_v out_o all_o the_o colour_n that_o remain_v in_o they_o throw_v away_o the_o cloth_n wash_v the_o shearing_n clean_a and_o keep_v they_o for_o the_o like_a use_n another_o time_n then_o put_v twelve_o ounce_n of_o roch-allom_n well_o powder_v into_o a_o glass_n body_n full_a of_o cold_a water_n let_v it_o dissolve_v quite_o when_o this_o be_v perfect_o do_v spread_v a_o linen-cloth_n over_o two_o staff_n and_o set_v underneath_o a_o large_a freestone_n vessel_n put_v all_o the_o allom-water_n into_o the_o bottle_n of_o tincture_n and_o strain_v it_o afterward_o through_o this_o cloth_n the_o lixivium_n will_v go_v through_o it_o clear_v and_o leave_v the_o colour_n behind_o but_o if_o it_o shall_v not_o be_v colour_v it_o be_v only_o strain_v it_o through_o again_o and_o you_o will_v have_v do_v now_o to_o get_v the_o tincture_n you_o must_v mix_v all_o that_o remain_v on_o the_o cloth_n and_o gather_v it_o together_o spread_v it_o afterward_o over_o new-made_a tile_n which_o have_v not_o yet_o be_v allow_v time_n to_o moisten_v on_o the_o piece_n of_o linen_n then_o mould_v they_o into_o troche_n to_o dry_v sudden_o without_o mould_v which_o will_v spoil_v they_o therefore_o you_o must_v take_v great_a care_n that_o the_o tile_n be_v not_o at_o all_o moist_a and_o if_o so_o to_o change_v they_o that_o it_o may_v dry_v the_o soon_o and_o thus_o you_o will_v have_v a_o lake_n of_o admirable_a colour_n for_o paint_v you_o must_v lessen_v or_o improve_v the_o colour_n as_o you_o find_v by_o a_o great_a or_o lesser_a quantity_n of_o roch-allom_n chap._n ccxxiu_o a_o ready_a way_n to_o extract_n the_o tincture_n of_o kerm-berry_n though_o the_o menstruum_fw-la give_v in_o the_o last_o chapter_n make_v with_o shearing_n of_o cloth_n be_v a_o very_a good_a one_o for_o this_o purpose_n yet_o the_o follow_a be_v a_o more_o easy_a and_o as_o effectual_a take_v strong-water_n of_o the_o first_o run_v or_o distil_v and_o put_v it_o into_o a_o long-neckt_a glass_n body_n dissolve_v therein_o a_o pound_n of_o roch-allom_n add_v a_o ounce_n of_o kerm-berry_n fine_o powder_v and_o sear_v let_v it_o digest_v well_o shake_v the_o matrass_n from_o time_n to_o time_n and_o the_o strong-water_n will_v draw_v to_o they_o all_o the_o tincture_n of_o the_o kermes_n and_o be_v very_o sine_o colour_v then_o let_v all_o settle_v four_o day_n and_o afterward_o pour_v it_o gentle_o into_o a_o glaze_v earthen-vessel_n dissolve_v four_o ounce_n of_o roch-allom_n in_o run_v water_n and_o pour_v this_o into_o the_o strong-water_n or_o tincture_n of_o kermes_n to_o cause_v a_o separation_n filter_n it_o through_o a_o linen-cloth_n and_o the_o strong-water_n will_v fall_v through_o white_a leave_v the_o tincture_n behind_o if_o they_o be_v any_o thing_n colour_v strain_v they_o again_o and_o again_o until_o they_o be_v clear_a take_v up_o the_o lake_n or_o colour_n with_o a_o clean_a wooden-spoon_n and_o make_v it_o into_o troche_n dry_v they_o as_o direct_v in_o the_o former_a chapter_n thus_o you_o may_v have_v a_o quantity_n of_o this_o colour_n or_o lake_n as_o fine_a and_o good_a as_o the_o former_a chap._n ccxxu._n to_o make_v lake_n or_o tincture_n of_o brazile_n the_o brazile_n which_o dyer_n make_v use_v of_o be_v mean_v here_o take_v of_o the_o fine_a which_o come_v from_o fernambouck_n that_o be_v the_o best_a the_o way_n of_o extract_v this_o tincture_n be_v the_o same_o as_o the_o former_a from_o kermes_n and_o may_v be_v effect_v two_o way_n either_o with_o the_o first_o prescribe_v menstruum_fw-la or_o the_o strong-water_n observe_v only_a not_o to_o put_v as_o much_o allom_n to_o each_o ounce_n of_o brazile_n as_o to_o the_o berry_n for_o that_o tincture_n be_v deep_a than_o this_o from_o brazile_n and_o consequent_o require_v more_o stuff_n use_v therefore_o as_o much_o here_o as_o you_o find_v reasonable_a for_o experience_n will_v give_v you_o the_o best_a instruction_n take_v notice_n too_o that_o when_o you_o do_v it_o by_o the_o first_o menstruum_fw-la there_o be_v a_o great_a quantity_n require_v of_o brazile_n than_o be_v prescribe_v of_o kermes-berry_n to_o each_o pound_n of_o shearing_n in_o every_o thing_n else_o follow_v the_o former_a direction_n and_o you_o will_v have_v a_o fine_a colour_n or_o lake_n less_o chargeable_a and_o altogether_o as_o good_a as_o the_o tincture_n of_o kermes_n for_o paint_v chap._n ccxxvi_o to_o extract_n tincture_n of_o mad_a for_o lake_n mad_a be_v the_o root_n of_o a_o plant_n common_a enough_o but_o general_o come_v from_o holland_n and_o zealand_n and_o use_v by_o dyer_n if_o good_a it_o be_v red_a it_o be_v fine_a than_o brazile_n and_o before_o you_o use_v it_o must_v be_v fine_o powder_v to_o give_v the_o better_a colour_n you_o may_v use_v either_o of_o the_o former_a menstruum_n of_o shearing_n or_o strong-water_n order_v your_o quantity_n as_o direct_v for_o the_o brazile_n if_o you_o follow_v the_o preparation_n give_v in_o chap._n 223._o you_o will_v have_v a_o fine_a colour_n from_o this_o root_n which_o make_v into_o troche_n dry_v they_o as_o before_o this_o will_v be_v a_o perfect_a lake_n and_o very_o fine_a for_o use_v chap._n ccxxvii_o how_o to_o make_v ultra-marine_a of_o lapis-lazuli_a this_o rich_a and_o noble_a blue_n draw_v from_o a_o azure-stone_n common_o call_v lapis-lazuli_a it_o be_v 〈◊〉_d opaque-stone_n of_o a_o fine_a sky-colour_n or_o turkish-â—lue_a or_o like_o the_o blue-flower_n which_o grow_v in_o cornâ—â—lds_n it_o be_v embellish_v with_o small_a streak_n and_o spark_n of_o gold-colour_n the_o best_a be_v that_o which_o be_v fix_v â—â—at_o be_v can_v endure_v fire_n without_o
of_o a_o very_a fine_a diamond_n colour_n hard_a shine_a and_o sparkle_v like_o the_o true_a one_o which_o you_o may_v polish_v and_o work_v up_o as_o the_o goldsmith_n this_o sulphurous_a trepoly_n which_o enter_v into_o the_o composition_n of_o this_o paste_n be_v not_o common_o know_v we_o will_v show_v the_o way_n of_o make_v it_o that_o we_o may_v leave_v nothing_o imperfect_a which_o may_v be_v any_o obstruction_n to_o the_o proceed_n of_o the_o curious_a take_v equal_a part_n of_o trepoly_n of_o crude_a antimony_n and_o common_a sulphur_n and_o grind_v they_o to_o a_o fine_a powder_n on_o a_o porphyry_n stone_n and_o make_v they_o into_o a_o paste_n with_o vinegar_n which_o be_v dry_a will_v easy_o crumble_v this_o be_v the_o sulphurous_a trepoly_n which_o we_o make_v use_v of_o some_o person_n in_o make_v the_o same_o process_n of_o take_v away_o the_o colour_n from_o jargons_n and_o give_v they_o the_o hardness_n and_o whiteness_n of_o diamond_n have_v make_v use_n of_o barly-meol_a wherewith_o they_o make_v a_o paste_n with_o distil_a vinegar_n impregnate_v with_o lead_n wherewith_o they_o stratifie_v their_o stone_n or_o jargons_n in_o a_o crucible_n cover_v with_o another_o and_o well_o lute_v which_o they_o afterward_o put_v in_o a_o gradual_a round_a or_o wheel_n fire_n for_o six_o hour_n but_o this_o way_n they_o can_v not_o give_v they_o the_o true_a diamond-colour_n wherefore_o i_o advise_v those_o who_o will_v try_v this_o experiment_n to_o follow_v our_o first_o process_n which_o have_v several_a time_n succeed_v there_o be_v moreover_o some_o who_o stratifie_v their_o stone_n with_o pound_a coal_n which_o they_o put_v in_o a_o crucible_n cover_v and_o lute_v which_o they_o set_v on_o the_o fire_n six_o hour_n so_o that_o the_o crucible_n be_v always_o red_a hot_a i_o do_v approve_v of_o this_o way_n because_o the_o coal_n may_v dry_v the_o humour_n of_o the_o stone_n and_o calcine_v it_o chap._n cxxxix_o the_o way_n to_o make_v diamond_n the_o quality_n and_o colour_n of_o the_o diamond_n be_v so_o well_o know_v we_o shall_v not_o enlarge_v upon_o they_o in_o this_o chapter_n but_o only_o show_v the_o way_n to_o counterfeit_v they_o make_v they_o endure_v the_o fire_n and_o harden_v they_o take_v of_o good_a natural_a crystal_n calcine_v and_o reduce_v to_o subtle_a powder_n what_o quantity_n you_o please_v fill_v a_o pot_n with_o it_o and_o set_v it_o in_o a_o glass-house_n furnace_n twelve_o hour_n to_o be_v melt_v and_o purify_v then_o drop_v the_o melt_a matter_n into_o cold_a water_n then_o dry_v it_o and_o reduce_v it_o again_o to_o powder_n add_v to_o that_o powder_n its_o weight_n of_o our_o fine_a salt_n of_o tartar_n of_o chap._n 93._o mix_v these_o two_o powder_n well_o and_o make_v little_a pill_n of_o they_o with_o common_a water_n then_o wipe_v these_o pill_n and_o put_v they_o into_o a_o earthen_a pot_n on_o a_o strong_a fire_n there_o to_o grow_v red_a hot_a for_o twelve_o hour_n space_n without_o melt_v then_o put_v they_o into_o a_o pot_n in_o a_o glass-house_n furnace_n where_o leave_v they_o two_o day_n to_o be_v well_o melt_v and_o purify_v then_o put_v the_o matter_n twelve_o hour_n in_o the_o anneal_a furnace_n to_o cool_v little_a by_o little_a then_o break_v the_o crucible_n and_o you_o will_v have_v a_o fine_a material_a for_o diamond_n which_o cut_v and_o polish_v at_o the_o wheel_n chap._n cxl_o another_o way_n of_o make_v the_o diamond_n of_o alencon_n here_o follow_v a_o way_n of_o make_v diamond_n of_o alencon_n which_o be_v not_o quite_o so_o fine_a as_o the_o precedent_n but_o have_v notwithstanding_o several_a advantage_n which_o attend_v it_o beside_o it_o be_v more_o easy_a since_o there_o only_o need_v a_o ordinary_a fire_n to_o succeed_v in_o it_o take_v a_o earthen_a glaze_v pot_n set_v it_o on_o a_o little_a furnace_n put_v in_o it_o file_n of_o steel_n with_o some_o vine-ash_n at_o discretion_n wherein_o place_n by_o one_o another_o crystal_n cut_v and_o polish_a then_o pour_v common_a water_n gentle_o on_o it_o which_o warm_a and_o boil_v during_o the_o space_n of_o twelve_o hour_n take_v care_n to_o add_v boil_a water_n fresh_a into_o the_o vessel_n as_o the_o water_n in_o it_o consume_v by_o boil_v and_o take_v care_v it_o boil_v continual_o then_o see_v if_o your_o crystal_n have_v acquire_v the_o colour_n and_o hardness_n you_o expect_v if_o not_o continue_v the_o fire_n some_o hour_n long_o and_o they_o will_v be_v like_o the_o true_a diamond_n of_o alencon_n take_v care_n to_o repolish_v they_o again_o at_o the_o wheel_n to_o give_v they_o colour_n and_o brightness_n chap._n cxli_o the_o way_n to_o give_v the_o true_a colour_n and_o hardness_n of_o a_o diamond_n to_o crystal_n and_o diamond_n of_o alencon_n there_o be_v nothing_o in_o nature_n which_o art_n can_v imitate_v and_o oftentimes_o those_o thing_n which_o seem_v most_o difficult_a prove_v to_o be_v most_o easy_a when_o manage_v with_o judgement_n or_o when_o he_o that_o undertake_v to_o do_v they_o have_v experiment_v any_o thing_n of_o the_o like_a nature_n before_o and_o know_v the_o nature_n and_o property_n and_o power_n of_o his_o subject_n although_o the_o imperfect_a metal_n be_v immature_n or_o unripe_a they_o contain_v notwithstanding_o a_o great_a deal_n of_o fix_a and_o volatile_a gold_n which_o may_v be_v easy_o separate_v or_o attract_v out_o by_o mean_n of_o art_n imperfect_a metal_n may_v be_v very_o much_o meliorate_v by_o fire_n by_o a_o proportionable_a and_o agreeable_a coction_n there_o be_v also_o crystal_n and_o precious_a stone_n which_o have_v no_o natural_a hardness_n which_o may_v be_v give_v they_o by_o art_n have_v all_o the_o natural_a disposition_n thereunto_o require_v since_o they_o have_v the_o same_o principle_n as_o the_o most_o fine_a and_o that_o they_o only_o want_v a_o little_a sulphur_n which_o hinder_v their_o thorough_a coction_n thus_o this_o defect_n may_v be_v obviate_v in_o precious_a stone_n as_o well_o as_o metal_n by_o give_v they_o a_o due_a coction_n and_o so_o change_v they_o for_o the_o better_a we_o will_v begin_v to_o give_v the_o most_o simple_a way_n of_o attain_v it_o before_o we_o show_v those_o that_o be_v more_o exalt_v you_o may_v give_v the_o colour_n and_o hardness_n of_o diamond_n to_o crystal_n and_o diamond_n of_o alencon_n by_o take_v good_a dutch_a trepoly_n and_o make_v a_o paste_n of_o it_o with_o water_n out_o of_o the_o smith_n forge_n wherein_o you_o must_v wrap_v up_o the_o quantity_n you_o design_n of_o crystal_n or_o diamond_n of_o alencon_n cut_v and_o polish_a then_o set_v it_o in_o a_o crucible_n cover_v and_o lute_v on_o a_o gradual_a fire_n where_o let_v it_o stand_v till_o the_o crucible_n become_v red_a hot_a a_o little_a time_n after_o take_v it_o out_o and_o take_v out_o the_o stone_n then_o polish_v they_o again_o at_o the_o wheel_n to_o give_v they_o their_o colour_n to_o set_v they_o in_o work_n take_v indian_a paper_n with_o leave_n of_o tin_n like_o those_o you_o put_v behind_o looking-glass_n then_o let_v they_o be_v set_v by_o some_o good_a goldsmith_n and_o they_o can_v scarce_o be_v distinguish_v from_o fine_a oneâ—_n except_o by_o very_o nice_a discerner_n chap._n cxlii_o another_o way_n to_o harden_v crystal_n and_o diamond_n of_o alencon_n crystal_n also_o acquire_v hardness_n in_o the_o paste_n we_o be_v now_o go_v to_o describe_v because_o their_o humidity_n exhale_v and_o they_o become_v more_o fix_v take_v barly-meal_n well_o sift_v with_o petroleum_n or_o rock-oyl_n then_o cut_v that_o paste_n in_o the_o middle_n and_o put_v all_o your_o stone_n in_o order_n so_o that_o they_o may_v not_o touch_v one_o another_o then_o cover_v your_o stone_n with_o the_o other_o half_a of_o the_o paste_n than_o put_v it_o in_o a_o crucible_n cover_v with_o another_o and_o lute_v well_o together_o and_o let_v it_o dry_v then_o set_v this_o crucible_n in_o a_o gradual_a wheel-fire_n from_o five_o to_o six_o hour_n a_o small_a fire_n the_o two_o first_o hour_n which_o increase_n from_o two_o to_o two_o hour_n till_o the_o end_n of_o the_o six_o then_o let_v the_o whole_a cool_a of_o itself_o then_o break_v your_o crucible_n and_o you_o will_v find_v your_o stone_n very_o fine_a shine_a and_o sparkle_v like_o fine_a diamond_n which_o repolish_a at_o the_o wheel_n and_o set_v by_o a_o skilful_a workman_n chap._n cxliii_o a_o way_n to_o harden_v crystal_n and_o diamond_n of_o alencon_n and_o to_o make_v they_o sparkle_v as_o much_o as_o natural_a oriental_a diamond_n although_o this_o be_v a_o important_a secret_n and_o ill_a people_n may_v commit_v cheat_n by_o it_o yet_o i_o will_v here_o give_v it_o for_o the_o sake_n of_o the_o curious_a who_o only_o seek_v for_o their_o own_o satisfaction_n take_v one_o pound_n of_o loadstone_n a_o pound_n of_o quicklime_n and_o half_a a_o
baptista_n porta_n kircher_n and_o many_o other_o author_n if_o you_o will_v make_v the_o mirror_n a_o convex_a glass_n you_o must_v have_v the_o mould_v concave_a and_o these_o you_o may_v do_v two_o way_n thus_o take_v the_o two_o concave_a side_n of_o the_o mould_n and_o close_v they_o together_o equal_o as_o the_o founder_n do_v their_o frames_n pour_v in_o through_o the_o mouth_n of_o the_o mould_n your_o crystal_n metal_n let_v it_o fill_v the_o mould_n and_o afterward_o cool_a another_o way_n be_v to_o take_v two_o concave_a mirror_n and_o join_v their_o face_n solder_v they_o well_o all_o about_o only_o leave_v a_o small_a orifice_n through_o which_o you_o may_v fill_v it_o with_o some_o aqua_fw-la vitæ_fw-la and_o so_o stop_v the_o hole_n and_o frame_v they_o with_o wood_n or_o metal_n this_o sort_n of_o mirror_n have_v a_o more_o ready_a influence_n on_o the_o sun_n beam_n then_o any_o other_o we_o will_v say_v something_o of_o the_o effect_n thereof_o when_o we_o come_v to_o speak_v of_o the_o metal_n mirror_n but_o upon_o the_o whole_a matter_n you_o must_v have_v these_o glass_n all_o very_a well_o polish_v these_o burn_a glass_n may_v be_v make_v parabolic_a or_o spheroidal_a and_o such_o have_v still_o a_o better_a effect_n than_o the_o spheric_a you_o must_v proceed_v in_o mould_v they_o as_o with_o the_o former_a you_o must_v observe_v a_o just_a proportion_n in_o do_v they_o for_o when_o they_o be_v too_o much_o raise_v they_o be_v hinder_v by_o their_o deepness_n from_o have_v a_o good_a effect_n and_o upon_o this_o depend_v the_o whole_a nicety_n of_o the_o art_n chap._n cclu._n how_o to_o make_v metal_n mirror_n concave_a sphericks_n or_o parabolick_v usual_o call_v steel_n burn_v mirror_n the_o author_n cite_v in_o the_o former_a chapter_n be_v very_o useful_a to_o be_v consult_v on_o this_o occasion_n to_o demonstrate_v the_o method_n use_v and_o excellency_n of_o these_o mirror_n for_o which_o reason_n we_o shall_v say_v but_o little_a on_o that_o subject_a the_o mould_v for_o they_o be_v prepare_v as_o in_o the_o former_a chapter_n whether_o concave_a or_o convex_v and_o for_o such_o as_o be_v flat_a they_o may_v be_v cast_v on_o sand._n the_o metal_n of_o these_o mirror_n be_v call_v steel_n because_o it_o be_v of_o a_o very_a hard_a and_o bright_a composure_n and_o temper_n and_o the_o hard_a the_o metal_n the_o better_a the_o mirror_n and_o the_o easy_a to_o polish_v the_o whiteness_n of_o it_o be_v very_o convenient_a for_o give_v the_o quality_n of_o burn_v and_o not_o only_o for_o that_o but_o several_a other_o use_v if_o it_o be_v too_o red_a or_o black_a it_o alter_v the_o true_a distance_n and_o colour_n of_o its_o opposite_a object_n you_o must_v therefore_o make_v they_o of_o this_o follow_a composition_n take_v three_o pound_n of_o copper_n one_o pound_n of_o fine_a tin_n half_o a_o ounce_n of_o white_a arsenic_n a_o ounce_n of_o tartar_n first_o melt_v the_o copper_n than_o put_v the_o tin_n in_o immerge_v in_o the_o copper_n else_o it_o will_v fume_v away_o in_o the_o melt_a and_o leave_v the_o copper_n behind_o these_o two_o be_v well_o melt_v together_o cast_v in_o the_o arsenic_n and_o tartar_n after_o this_o let_v all_o melt_v for_o two_o or_o three_o hour_n and_o so_o mould_v it_o some_o person_n dose_n with_o the_o former_a weight_n of_o copper_n and_o tin_n half_o a_o pound_n of_o white_a arsenic_n uther_n instead_o of_o arsenic_n put_v in_o a_o quarter_n of_o a_o pound_n of_o antimony_n here_o be_v another_o way_n to_o compound_v this_o stuff_n of_o the_o follow_a ingredient_n and_o after_o that_o another_o composition_n much_o more_o excellent_a than_o either_o take_v a_o pound_n of_o well_o refine_a copper_n melt_v it_o then_o add_v three_o pound_n of_o fine_a tin_n as_o soon_o as_o these_o be_v well_o melt_v add_v six_o ounce_n of_o red_a tartar_n calcine_v one_o ounce_n of_o salt-petre_a two_o dram_fw-la of_o allom_n and_o two_o ounce_n of_o arsenic_n let_v these_o melt_v for_o three_o or_o four_o hour_n that_o the_o salt_n may_v evaporate_v and_o the_o stuff_n will_v be_v fit_a for_o mould_v this_o stuff_n be_v more_o solid_a and_o hard_a than_o the_o former_a and_o much_o better_a to_o make_v the_o flat_a mirror_n for_o look_v you_o shall_v be_v show_v how_o to_o polish_v they_o in_o the_o next_o chapter_n we_o have_v promise_v to_o assign_v a_o much_o more_o excellent_a stuff_n for_o concave_n than_o the_o former_a one_o will_v give_v it_o here_o because_o of_o the_o hardness_n and_o compactness_n thereof_o it_o be_v more_o capable_a of_o polish_n and_o consequent_o much_o better_a than_o the_o rest_n take_v plate_n of_o copper_n one_o pound_n mince_v they_o that_o they_o may_v be_v put_v into_o a_o crucible_n imbibe_v they_o with_o oil_n of_o tartar_n then_o powder_v a_o quarter_n of_o â—_o pound_n of_o white_a arsenic_n and_o put_v these_o s._n s._n s._n as_o we_o have_v show_v the_o method_n elsewhere_o until_o you_o fill_v the_o crucible_n pour_v on_o they_o afterward_o linseed-oyl_n to_o cover_v the_o arsenic_n and_o the_o copper_n head_n and_o lute_n youâ—_n crucible_n and_o when_o the_o lute_n be_v dry_a set_v it_o on_o a_o sand-furnace_n let_v the_o sand_n arise_v no_o high_a than_o the_o head_n heat_n the_o furnace_n very_o gentle_o till_o it_o arrive_v aâ—_n a_o just_a degree_n and_o the_o oil_n begin_v to_o evaporate_v 〈◊〉_d this_o time_n the_o oil_n will_v prepare_v the_o copper_n for_o retain_v the_o arsenic_n which_o must_v enter_v the_o copper_n as_o easy_o as_o oil_n do_v leather_n set_v it_o again_o on_o fresh_a sand_n and_o increase_v the_o heat_n of_o the_o furnace_n give_v iâ—_n the_o same_o degree_n as_o before_o until_o the_o oil_n evaporate_v and_o boil_v up_o then_o take_v off_o the_o crucible_n let_v it_o cool_v and_o break_v it_o you_o will_v find_v your_o copper_n of_o several_a colour_n and_o will_v be_v much_o better_a if_o instead_o of_o arsenic_n you_o make_v use_v of_o orpiment_n take_v of_o this_o copper_n one_o part_n of_o latin_n two_o part_n melt_v the_o latin_a on_o a_o smart_a fire_n and_o so_o put_v in_o the_o copper_n when_o they_o be_v well_o melt_v cast_v the_o metal_n drop_v by_o drop_n into_o a_o glaze_v earthen_a vessel_n full_a of_o water_n over_o which_o lie_v a_o bush_n or_o broom_n for_o the_o stuff_n to_o go_v through_o thus_o you_o will_v have_v a_o metal_n not_o to_o be_v touch_v with_o a_o file_n nor_o brittle_a as_o good_a as_o any_o steel_n for_o all_o use_n whatsoever_o take_v of_o this_o hard_a metal_n three_o part_n and_o best_a tin_n of_o cornwall_n which_o have_v no_o lead_n in_o it_o one_o part_n melt_v the_o metal_n before_o you_o put_v in_o the_o tin_n after_o these_o be_v well_o incorporate_v you_o may_v fill_v your_o mould_v etc._n etc._n this_o be_v the_o best_a of_o all_o our_o composition_n for_o make_v of_o all_o sort_n of_o these_o metal_n mirror_n it_o be_v white_a hard_a not_o brittle_a and_o very_o easy_o polish_v exceed_v fine_a chap._n cclvi_o to_o polish_v the_o steel_n mirror_n whatsoever_o exactness_n you_o use_v in_o mould_v these_o they_o do_v never_o receive_v their_o true_a shape_n and_o perfection_n until_o they_o be_v polish_v and_o burnish_v in_o do_v which_o lest_o you_o shall_v spoil_v or_o endamage_v they_o you_o must_v work_v away_o the_o outside_o at_o the_o wheel_n with_o the_o sand-stone_n which_o the_o pewterer_n and_o brazier_n make_v use_v of_o and_o then_o apply_v the_o handle_n and_o polish_v they_o sufficient_o by_o rub_v with_o water_n this_o do_v take_v it_o off_o this_o wheel_n and_o put_v it_o on_o the_o second_o where_o rub_v it_o with_o emery_n prepare_v that_o it_o may_v be_v fine_o polish_v so_o as_o the_o scar_n may_v be_v scarce_o perceptible_a do_v this_o in_o a_o oblique_a line_n then_o take_v it_o off_o this_o and_o set_v it_o on_o such_o another_o rub_v it_o with_o bloodstone_n prepare_v and_o afterward_o use_v calx_fw-la of_o tin_n work_v it_o for_o a_o long_a time_n until_o it_o have_v its_o due_a burnish_n and_o perfection_n still_o do_v it_o in_o the_o same_o obliquity_n you_o must_v keep_v these_o mirror_n from_o the_o moistness_n of_o the_o air_n and_o steam_n or_o if_o they_o shall_v happen_v to_o be_v endamage_v by_o any_o such_o you_o may_v restore_v they_o by_o rub_v on_o they_o a_o piece_n of_o deer_n or_o goat_n skin_n humour_v the_o oblique_a line_n you_o must_v not_o use_v any_o woollen_a or_o linen_n stuff_n for_o they_o spoil_v these_o mirror_n these_o mirror_n may_v be_v also_o polish_v with_o lead_n artificial_o melt_v with_o emery_n and_o water_n for_o the_o first_o process_n and_o very_o fine_a emery_n and_o lead_v for_o the_o second_o and_o in_o the_o last_o with_o bloodstone_n and_o tin_n dross_n these_o make_v
it_o yet_o a_o quarter_n of_o a_o hour_n over_o the_o same_o fire_n then_o decant_v off_o that_o lee_n to_o the_o former_a thus_o continue_v to_o water_v it_o with_o fresh_a lee_n and_o decant_v it_o off_o to_o the_o former_a as_o long_o as_o it_o will_v extract_v any_o tincture_n from_o the_o matter_n then_o take_v all_o these_o tinctured_a lees_n and_o filter_n they_o through_o white_v brown_a paper_n then_o evaporate_v three_o quarter_n over_o a_o gentle_a fire_n and_o put_v the_o remainder_n into_o a_o alembick_a with_o the_o helm_n or_o head_n on_o and_o the_o receiver_n and_o distil_v it_o till_o it_o be_v dry_a then_o you_o will_v find_v at_o bottom_n of_o the_o alembick_a a_o crocus_n veneris_n of_o a_o very_a wonderful_a virtue_n for_o colour_v glass_n and_o other_o chemical_a operation_n and_o some_o medicinal_a uses_n chap._n xxxviii_o another_o way_n more_o easy_a to_o make_v crocus_n veneris_fw-la as_o those_o who_o apply_v themselves_o to_o this_o art_n be_v not_o all_o equal_o curious_a in_o their_o work_n and_o good_a husbandry_n be_v in_o fashion_n in_o this_o age_n we_o will_v show_v some_o more_o easy_a way_n and_o more_o ready_a to_o make_v crocus_n veneris_n whereof_o this_o be_v one_o take_v very_o thin_a plate_n of_o copper_n put_v they_o into_o a_o earthen_a pot_n with_o common_a salt_n s._n s._n s._n and_o put_v this_o pot_n on_o the_o furnace_n where_o let_v it_o stand_v till_o the_o matter_n be_v very_o red_a then_o put_v the_o plate_n with_o the_o salt_n into_o cold_a water_n and_o wash_v they_o well_o to_o take_v away_o all_o blackness_n reiterate_v the_o stratification_n of_o these_o plate_n with_o common_a salt_n calcine_v they_o at_o the_o fire_n and_o wash_v they_o as_o before_o as_o often_o as_o you_o please_v after_o the_o last_o time_n pour_v warm_a water_n on_o that_o where_o the_o plate_n have_v be_v extinguish_v and_o then_o let_v it_o stand_v still_o some_o time_n then_o empty_v it_o and_o you_o will_v find_v at_o the_o bottom_n of_o the_o vessel_n a_o crocus_n veneris_n red_a as_o blood_n you_o must_v wash_v it_o well_o several_a time_n to_o cleanse_v it_o then_o dry_v it_o well_o with_o a_o linen_n cloth_n and_o keep_v it_o for_o use_v to_o colour_v glass_n there_o be_v some_o who_o content_v themselves_o to_o take_v ae_z ustum_fw-la prepare_v with_o sulphur_n and_o common_a salt_n as_o we_o have_v show_v heretofore_o and_o to_o heat_v it_o red-hot_a in_o the_o fire_n nine_o time_n and_o quench_v it_o as_o often_o in_o linseed_n oil_n then_o dry_v it_o and_o powder_n it_o chap._n thirty-nine_o another_o easy_a way_n of_o make_v crocus_n veneris_fw-la we_o now_o give_v another_o easy_a way_n of_o make_v crocus_n veneris_fw-la take_v of_o copper_n simple_o calcine_v one_o part_n of_o sulphur_n vivum_fw-la eight_o part_n well_o powder_v mix_v they_o together_o in_o a_o large_a crucible_n which_o then_o set_v on_o a_o coal-fire_n in_o a_o little_a furnace_n stir_v the_o matter_n continual_o with_o a_o iron_n rod_n till_o the_o sulphur_n be_v consume_v and_o reiterate_v this_o process_n five_o or_o six_o time_n then_o cast_v it_o thus_o refine_a into_o a_o earthen_a pan_n of_o boil_a water_n stir_v it_o often_o with_o a_o stick_n while_o the_o calx_fw-la descend_v to_o the_o bottom_n than_o the_o water_n be_v settle_v and_o clear_a evaporate_v ¾_n to_o extract_v the_o crystal_n or_o rather_o evaporate_v the_o whole_a and_o you_o will_v find_v at_o bottom_n of_o the_o vessel_n a_o crocus_n veneris_n very_o fine_a and_o red_a chap._n xl._o the_o first_o colour_n of_o sea-green_a for_o a_o tincture_n of_o glass_n the_o colour_n of_o sea-green_a be_v give_v by_o the_o italian_n to_o beryl_n which_o be_v a_o precious_a stone_n find_v at_o the_o foot_n of_o mount_n taurus_n by_o the_o river_n euphrates_n which_o have_v the_o green-blue_a of_o the_o sea_n it_o be_v find_v in_o the_o indies_n of_o a_o colour_n somewhat_o pale_a which_o make_v it_o be_v call_v by_o different_a name_n and_o when_o the_o colour_n be_v deep_a they_o common_o pass_v for_o other_o precious_a stone_n it_o be_v therefore_o the_o water_n express_v its_o colour_n we_o will_v treat_v more_o large_o of_o it_o in_o our_o five_o book_n wherein_o we_o shall_v show_v the_o way_n of_o imitate_v precious_a stone_n this_o colour_n which_o be_v one_o of_o the_o fine_a sky-colour_n aught_o to_o be_v make_v in_o fine_a and_o well_o purify_v crystal_n which_o the_o italian_n call_v bollito_n for_o if_o you_o make_v it_o in_o common_a glass_n it_o be_v not_o so_o fair_a you_o must_v likewise_o put_v no_o manganese_n in_o this_o colour_n to_o make_v it_o therefore_o very_o fine_a and_o beautiful_a take_v crystal-fritt_a put_v it_o in_o a_o pot_n in_o the_o furnace_n where_o be_v well_o melt_v and_o clear_a you_o must_v skim_v off_o the_o salt_n which_o will_v swim_v on_o the_o top_n like_o oil_n with_o a_o iron_n ladle_n for_o if_o you_o shall_v not_o take_v it_o off_o the_o colour_n will_v be_v foul_a and_o oily_a the_o matter_n be_v well_o purify_v you_o must_v add_v to_o it_o to_o every_o 20_o pound_n or_o thereabouts_o 6_o ounce_n of_o the_o powder_n of_o copper_n calcine_v as_o we_o have_v teach_v in_o chaptâ—â—_n xxx_o with_o a_o four_o part_n of_o zaffer_n prepare_v also_o in_o powder_n and_o well_o mix_v both_o together_o in_o pâ—â—ting_v both_o these_o powder_n into_o the_o pot_n on_o the_o crystalline_a metal_n you_o must_v do_v it_o little_a by_o little_a for_o fear_v the_o crystal_n rise_v and_o swell_a shall_v run_v over_o whereof_o care_n must_v be_v take_v stir_v it_o well_o all_o the_o while_n this_o be_v do_v let_v the_o metal_n stand_v still_o and_o settle_v for_o the_o space_n of_o three_o hour_n that_o the_o colour_n may_v incorporate_v then_o stir_v it_o again_o then_o the_o workman_n may_v make_v a_o proof_n of_o the_o colour_n twenty_o four_o hour_n after_o the_o mix_n of_o the_o powder_n it_o may_v be_v wrought_v for_o by_o that_o time_n it_o will_v be_v well_o colour_v but_o the_o workman_n must_v first_o well_o mix_v the_o whole_a for_o fear_v the_o colour_n shall_v not_o be_v precipitate_v to_o the_o bottom_n which_o must_v always_o be_v well_o observe_v in_o all_o vessel_n wherein_o there_o be_v colour_n and_o the_o dose_n of_o the_o tincture_n right_o proportion_v to_o the_o crystalline_a metal_n in_o the_o pot_n according_a to_o the_o quantity_n we_o have_v set_v do_v chap._n xli_o another_o skye-colour_n or_o sea-green_a you_o must_v use_v for_o this_o colour_n which_o be_v a_o little_a close_a the_o same_o crystal-frit_a as_o in_o the_o precedent_n make_v with_o rochetta_n or_o polverine_n of_o the_o levant_n and_o have_v fill_v a_o pot_n of_o it_o let_v it_o be_v well_o purify_v and_o take_v off_o the_o salt_n that_o swim_v on_o the_o top_n then_o put_v to_o it_o 20_o pound_n of_o metal_n six_o ounce_n of_o the_o powder_n of_o calcine_v copper_n little_a by_o little_a stir_v it_o well_o observe_v the_o same_o rule_n we_o give_v for_o sea-green_a before_o then_o you_o will_v have_v a_o very_a admirable_a colour_n which_o you_o may_v make_v light_a or_o deep_a as_o you_o please_v two_o hour_n after_o stir_v it_o again_o well_o and_o you_o will_v see_v if_o the_o colour_n please_v you_o in_o which_o case_n let_v it_o stand_v still_o 24_o hour_n without_o any_o stir_a and_o then_o it_o may_v be_v wrought_v as_o before_o chap._n xlii_o another_o sea-green_a colour_n in_o artificial_a crystal_n which_o the_o italian_n call_v bollito_n these_o colour_n be_v not_o to_o be_v make_v without_o a_o great_a deal_n of_o precaution_n which_o this_o need_v as_o much_o as_o any_o to_o succeed_v well_o you_o must_v have_v in_o the_o furnace_n a_o pot_n fill_v with_o 40_o pound_n of_o good_a crystallâ—fritt_n careful_o skim_v boil_a and_o purify_v without_o any_o manganese_n have_v arrive_v thus_o far_o you_o must_v take_v 12_o ounce_n of_o the_o powder_n of_o small_a leaf_n of_o copper_n thrice_o calcine_v as_o we_o have_v show_v chap._n xxx_o and_o half_o a_o ounce_n of_o zaffer_n in_o powder_n prepare_v as_o in_o chap._n xvii_o mix_v these_o powder_n together_o then_o put_v they_o at_o four_o time_n into_o the_o pot_n that_o they_o may_v the_o better_o mix_v with_o the_o glass_n stir_v they_o at_o each_o time_n well_o as_o you_o put_v they_o in_o for_o fear_v it_o shall_v swell_v too_o much_o and_o run_v over_o two_o hour_n after_o the_o whole_a be_v incorporate_v well_o mix_v and_o pretty_a well_o settle_v try_v if_o your_o colour_n be_v deep_a enough_o than_o let_v it_o rest_v though_o the_o sea-green_a or_o sky_n colour_n seem_v at_o first_o greenish_a you_o need_v not_o be_v concern_v at_o that_o for_o the_o salt_n in_o the_o glass_n will_v consume_v all_o that_o greenness_n and_o change_v it_o into_o