be_v always_o best_a however_o even_o of_o they_o there_o be_v choice_n some_o lose_a colour_n in_o the_o fire_n some_o be_v more_o or_o less_o lively_a and_o sparkle_a but_o if_o you_o employ_v constant_o such_o as_o we_o have_v prescribe_v in_o our_o six_o book_n you_o will_v never_o be_v expose_v to_o those_o inconvenience_n for_o the_o ingredient_n be_v perfect_o cleanse_v will_v endure_v all_o degree_n of_o fire_n any_o change_n of_o colour_n or_o quality_n not_o ensue_v chap._n clxxxi_o of_o the_o furnace_n for_o enamel_v and_o pourtray_v the_o enamel_v of_o metal_n as_o well_o as_o the_o colour_n of_o the_o stuff_n can_v be_v effect_v without_o fire_n and_o be_v whole_o different_a in_o this_o point_n from_o paint_v with_o the_o usual_a colour_n in_o oil_n which_o may_v be_v dry_v in_o the_o air_n only_o without_o other_o help_n it_o will_v be_v very_o hard_a to_o believe_v the_o fire_n will_v not_o spoil_v the_o mixture_n of_o the_o colour_n if_o our_o daily_a experience_n which_o we_o make_v do_v not_o vouch_v the_o contrary_a however_o care_n must_v be_v take_v not_o to_o let_v the_o work_n have_v too_o much_o time_n but_o draw_v it_o out_o as_o soon_o as_o you_o find_v it_o polish_a the_o fire_n must_v be_v reverberatory_n or_o rather_o of_o suppression_n and_o never_o to_o be_v under_o the_o stuff_n it_o be_v the_o same_o as_o be_v use_v for_o cleanse_v of_o metal_n whether_o in_o mint_n or_o goldsmith_n shop_n which_o be_v very_o familiar_a to_o all_o the_o world_n you_o must_v have_v a_o furnace_n round_o or_o square_n either_o of_o iron_n or_o earth_n it_o be_v no_o great_a matter_n how_o or_o whether_o of_o these_o it_o be_v which_o must_v be_v hollow_a in_o the_o middle_n to_o contain_v the_o work_n with_o a_o good_a charcoal-fire_n all_o about_o and_o over_o it_o to_o make_v it_o melt_v the_o better_a and_o you_o must_v have_v it_o so_o as_o to_o be_v able_a to_o take_v your_o stuff_n out_o and_o put_v it_o in_o again_o as_o occasion_n require_v you_o may_v for_o better_a conveniency_n make_v use_n of_o a_o goldsmith_n muffle_v it_o be_v a_o small_a arch_n make_v of_o crucible_n earth_n in_o the_o shape_n of_o half_a a_o crucible_n cut_v length-wise_a and_o they_o place_v it_o on_o the_o area_n or_o floor_n of_o the_o furnace_n the_o open_v of_o it_o lie_v just_a against_o the_o mouth_n of_o the_o furnace_n to_o put_v in_o and_o draw_v out_o the_o work_n easy_o and_o for_o more_o conveniency_n they_o place_v a_o small_a grate_n over_o it_o which_o must_v not_o touch_v it_o for_o fear_v of_o break_v it_o and_o on_o this_o grate_n make_v a_o good_a fire_n and_o so_o round_o about_o the_o muffle_v to_o heat_v the_o hollow_a very_o well_o under_o which_o they_o put_v the_o work_n to_o be_v enamel_v and_o paint_v and_o the_o essay_n or_o trial_n they_o have_v a_o mind_n to_o make_v on_o a_o little_a ironshovel_a to_o draw_v the_o easy_a out_o but_o for_o make_v essay_n of_o ingredient_n for_o enamel_n it_o must_v be_v a_o little_a blade_n of_o white_a enamel_n which_o ought_v to_o be_v provide_v purposely_o for_o that_o use_n chap._n clxxxii_o the_o way_n to_o enamel_n gold_n we_o have_v already_o say_v that_o gold_n silver_n and_o red_a copper_n may_v be_v enamel_v now_o to_o make_v true_a work_n you_o must_v use_v only_o pure_a gold_n because_o silver_n make_v white_a enamel_n appear_v yellow_a and_o copper_n rise_v in_o scale_n and_o make_v vapour_n for_o though_o all_o enamel_n stick_v to_o it_o yet_o it_o be_v but_o very_o imperfect_o and_o may_v be_v easy_o divide_v and_o peel_v off_o again_o beside_o the_o colour_n be_v so_o wretched_a on_o it_o and_o lose_v much_o of_o their_o charm_n and_o lustre_n by_o the_o impurity_n of_o that_o metal_n therefore_o if_o you_o will_v have_v good_a work_n let_v gold_n only_o be_v your_o subject_n and_o of_o the_o pure_a if_o you_o employ_v clear_a enamel_n because_o on_o impure_a gold_n they_o grow_v dull_a and_o become_v imperfect_a that_o be_v to_o say_v there_o appear_v with_o this_o a_o certain_a obscure_a and_o cloudy_a vapour_n in_o the_o enamel_n which_o deaden_n and_o take_v away_o the_o life_n of_o its_o colour_n the_o gold_n plate_n ought_v to_o be_v rise_v and_o when_o it_o be_v forge_v very_o even_o the_o goldsmith_n apply_v white_a enamel_n over_o and_o under_o it_o though_o it_o be_v to_o be_v wrought_v but_o on_o one_o side_n but_o this_o be_v necessary_a for_o two_o reason_n first_o because_o the_o work_n be_v neat_a and_o fair_a for_o it_o and_o again_o because_o if_o it_o be_v only_o enamel_v on_o one_o side_n the_o fire_n will_v swell_v it_o and_o so_o make_v it_o rise_v and_o that_o in_o bubble_n because_o it_o be_v always_o as_o it_o be_v torment_v especial_o when_o the_o piece_n be_v great_a and_o the_o enamel_n careless_o lay_v on_o this_o make_v it_o produce_v blistering_n which_o disfigure_v the_o work_n the_o french_a chemist_n call_v such_o vegoter_n but_o their_o goldsmith_n petits_fw-fr ocuillet_n this_o disfigure_v of_o the_o work_n you_o may_v avoid_v by_o lay_v enamel_n on_o both_o side_n of_o the_o plate_n of_o gold_n and_o thick_a over_o than_o under_o this_o will_v keep_v it_o equal_a and_o even_a on_o both_o side_n the_o first_o lie_v of_o white_a enamel_n remain_v smooth_a in_o this_o condition_n serve_v for_o a_o field_n to_o place_v all_o your_o other_o colour_n on_o as_o we_o will_v further_o discourse_v of_o in_o the_o art_n of_o pourtray_v oil_n of_o spike_n be_v use_v for_o dissolve_v thick_a and_o opaque_v enamel_n before_o it_o can_v be_v apply_v for_o the_o transparent_a you_o need_v use_v nothing_o but_o fair_a water_n as_o we_o shall_v show_v in_o chap._n 185._o and_o then_o it_o be_v couch_v flat_a and_o border_v with_o the_o metal_n and_o sometime_o we_o do_v border_n at_o all_o the_o field_n be_v all_o enamel_n but_o this_o be_v troublesome_a because_o the_o limpid_a enamel_n as_o they_o melt_v often_o mix_v and_o so_o confound_v the_o colour_n which_o constant_o happen_v when_o the_o piece_n 〈◊〉_d small_a red_a enamel_n be_v not_o so_o unless_o by_o chance_n and_o come_v general_o yellowish_a out_o of_o the_o fire_n assoon_o as_o it_o be_v apply_v to_o the_o gold_n it_o alter_v the_o colour_n one_o may_v soon_o bring_v it_o to_o a_o perfect_a red_a enamel_n by_o turn_v it_o at_o the_o mouth_n of_o your_o furnace_n when_o you_o be_v take_v it_o out_o from_o the_o fire_n and_o than_o it_o be_v that_o the_o workman_n say_v they_o make_v it_o red_a and_o give_v it_o its_o complete_a colour_n gold_n as_o we_o have_v already_o say_v admit_v of_o all_o sort_n of_o enamel_n clear_a or_o opaque_v bright_a purple_n except_v which_o be_v alter_v by_o the_o yellow-colour_n of_o the_o gold_n and_o do_v not_o take_v so_o good_a effect_n there_o as_o on_o silver_n on_o which_o it_o ought_v still_o to_o be_v use_v the_o way_n of_o work_v every_o sort_n of_o enamel_n be_v alike_o not_o to_o make_v any_o useless_a repetition_n we_o will_v satisfy_v ourselves_o only_o to_o advise_v you_o to_o employ_v all_o those_o enamel_n prescribe_v in_o the_o six_o book_n which_o have_v every_o illustrate_v and_o convenient_a property_n to_o be_v wish_v for_o in_o this_o work_n chap._n clxxxiii_o to_o enamel_n on_o silver_n we_o have_v already_o take_v notice_n in_o our_o former_a chapter_n that_o silver_n agree_v not_o with_o all_o sort_n of_o enamel_n as_o gold_n we_o repeat_v it_o here_o again_o to_o prevent_v the_o use_n of_o any_o but_o such_o as_o serve_v to_o produce_v perfect_a and_o agreeable_a effect_n you_o be_v to_o make_v least_o use_n of_o white_a enamel_n on_o silver_n because_o there_o it_o become_v yellowish_a and_o unpleasing_a but_o nothing_o can_v suit_v better_o with_o it_o than_o bright_a purple_a green_n blue_n and_o egmarine_a because_o the_o whiteness_n of_o the_o silver_n be_v then_o clear_o eminent_a and_o give_v its_o just_a splendour_n the_o work_n and_o manner_n of_o enamel_v on_o silver_n be_v no_o way_n different_a from_o that_o of_o gold_n in_o forge_v the_o plate_n even_o to_o prepare_v they_o for_o the_o enamel_n you_o may_v make_v use_n of_o white_a on_o the_o under_o side_n since_o the_o enamel_n there_o serve_v only_o to_o qualify_v the_o rise_n and_o disturbing_n of_o the_o metal_n in_o the_o furnace_n which_o will_v cause_v unevenness_n or_o disagreement_n in_o the_o surface_n and_o prevent_v its_o become_a just_a and_o handsome_a we_o need_v not_o repeat_v again_o that_o way_n of_o place_v the_o enamel_n on_o your_o plate_n of_o gold_n or_o silver_n and_o so_o to_o put_v they_o into_o your_o little_a reverberatory_n furnace_n speak_v of_o in_o chap._n 181._o to_o melt_v and_o as_o soon_o as_o polish_a to_o be_v take_v from_o the_o fire_n chap._n
may_v imitate_v all_o the_o colour_n of_o oriental_a precious_a stone_n and_o if_o this_o glass_n be_v as_o tough_a as_o crystal_n it_o will_v far_o surpass_v it_o in_o beauty_n it_o be_v true_a if_o you_o do_v work_v it_o with_o great_a care_n no_o pot_n nor_o crucible_n will_v hold_v it_o for_o it_o will_v crack_v they_o and_o run_v out_o i_o will_v here_o give_v all_o the_o method_n of_o prepare_v it_o and_o that_o so_o distinct_o that_o the_o unexperienced_a may_v succeed_v in_o it_o the_o business_n principal_o consist_v in_o know_v well_o how_o to_o calcine_v the_o lead_n and_o re-calcine_a it_o again_o which_o be_v common_o know_v notwithstanding_o in_o the_o next_o chapter_n we_o will_v show_v how_o to_o do_v it_o for_o the_o sake_n of_o those_o that_o do_v not_o know_v it_o the_o better_a the_o lead_n be_v calcine_v the_o less_o apt_a it_o be_v to_o turn_v into_o lead_n again_o and_o break_v the_o pot_n in_o this_o operation_n we_o will_v also_o show_v that_o you_o must_v always_o drop_v the_o glass_n into_o water_n when_o it_o be_v melt_v for_o the_o least_o lead_n remain_v in_o it_o break_v out_o the_o bottom_n of_o the_o vessel_n and_o sâ—_n you_o lose_v your_o matter_n which_o may_v be_v avoid_v by_o careful_o mind_v what_o we_o have_v say_v and_o which_o we_o shall_v note_v again_o in_o the_o follow_a chapter_n it_o be_v our_o opinion_n and_o that_o not_o without_o reason_n that_o that_o subtlety_n whereby_o the_o lead_v so_o easy_o in_o this_o case_n pierce_v the_o pot_n when_o it_o be_v not_o whole_o calcine_v come_v from_o a_o certain_a unctuous_a yellow_a matter_n like_o oil_n that_o be_v see_v to_o swim_v on_o the_o top_n sometime_o in_o a_o violent_a fusion_n for_o we_o have_v often_o observe_v that_o if_o that_o unctuous_a matter_n be_v not_o take_v off_o as_o soon_o as_o it_o appear_v on_o the_o top_n it_o will_v pierce_v the_o pot_n and_o so_o all_o run_v out_o among_o the_o coal_n this_o unctuous_a matter_n have_v strange_a and_o infinite_a virtue_n know_v to_o the_o adepti_fw-la both_o in_o cure_v disease_n and_o other_o operation_n he_o who_o know_v how_o to_o make_v it_o transparent_a and_o give_v it_o the_o jacynth_n colour_n in_o ezekiel_n which_o be_v that_o electrum_n speak_v of_o in_o the_o first_o chapter_n may_v boast_v he_o have_v a_o material_a from_o which_o may_v be_v extract_v a_o lac_fw-la virgin_n in_o great_a esteem_n among_o the_o philosopher_n but_o let_v this_o suffice_v we_o be_v not_o here_o to_o instruct_v the_o ignorant_a in_o those_o arcana_fw-la but_o remit_v they_o to_o the_o write_n of_o the_o adepti_fw-la kircher_n assure_v we_o that_o if_o mercury_n congeal_v with_o the_o vapour_n of_o lead_n be_v heat_v in_o a_o brass-spoon_n over_o live_a coal_n it_o will_v exhibit_v a_o strange_a variety_n of_o colour_n that_o you_o can_v imagine_v the_o like_a and_o zibav_n speak_v of_o lead_n in_o his_o seven_o book_n c._n 20._o the_o transmut_n metal_n that_o the_o melter_n and_o tryer_n of_o metal_n daily_o turn_v lead_n into_o glass_n and_o that_o this_o glass_n be_v black_a red_a yellow_a green_a or_o otherwise_o colour_v according_a as_o the_o lead_n be_v different_o calcine_v chap._n lxxxi_o to_o calcine_v lead_n lead_n be_v easy_a to_o be_v calcine_v because_o it_o be_v so_o to_o melt_v for_o this_o purpose_n you_o may_v make_v use_n of_o the_o furnace_n describe_v in_o chap._n 52_o or_o in_o a_o kiln_n you_o must_v put_v in_o a_o good_a quantity_n of_o lead_n at_o a_o time_n for_o in_o two_o or_o three_o day_n may_v be_v calcine_v several_a hundred_o weight_n the_o fire_n ought_v to_o be_v hot_a enough_o to_o melt_v glass_n and_o not_o hot_a for_o if_o it_o be_v hot_a it_o will_v not_o calcine_v the_o lead_n as_o soon_o as_o the_o lead_n be_v melt_v and_o it_o yield_v on_o top_n a_o yellowish_a matter_n begin_v to_o draw_v forward_o the_o calcine_v part_n with_o a_o iron_n fit_a for_o the_o purpose_n always_o spread_v it_o in_o the_o internal_a extremity_n of_o the_o furnace_n or_o kiln_n bottom_n this_o lead_n be_v well_o calcine_v for_o the_o first_o time_n aught_o to_o be_v put_v again_o into_o the_o furnace_n moderate_o hot_a to_o reverberate_v you_o must_v spread_v it_o with_o the_o iron_n and_o stir_v it_o continual_o for_o several_a hour_n and_o at_o this_o second_o calcination_n it_o will_v become_v yellow_a then_o searce_v it_o through_o a_o fine_a sieve_n and_o that_o which_o do_v not_o go_v through_o must_v be_v put_v with_o other_o lead_n to_o calcine_v afresh_o always_o take_v care_n that_o the_o furnace_n have_v just_a a_o moderate_a heat_n and_o be_v not_o too_o hot_a there_o be_v several_a other_o way_n of_o calcine_v lead_v which_o we_o will_v not_o mention_v here_o because_o this_o we_o have_v show_v be_v the_o best_a and_o most_o easy_a and_o will_v dispatch_v a_o great_a quantity_n in_o a_o short_a time_n all_o the_o potter_n know_v how_o to_o calcine_v it_o because_o they_o make_v use_v of_o it_o in_o their_o glaze_v chap._n lxxxii_o the_o way_n to_o make_v glass_n of_o lead_n we_o have_v tell_v you_o the_o beauty_n of_o this_o glass_n in_o chap._n 77_o which_o may_v be_v tinge_v of_o several_a colour_n as_o black_a white_a green_n and_o red_a which_o be_v natural_a to_o it_o the_o degree_n of_o the_o fire_n only_o make_v it_o take_v those_o different_a colour_n this_o glass_n be_v well_o make_v beside_o the_o beauty_n it_o have_v which_o it_o communicate_v to_o glass_n and_o to_o tincture_n of_o precious_a stone_n wherein_o it_o be_v employ_v it_o have_v other_o great_a virtue_n in_o metallick_n operation_n which_o be_v not_o know_v to_o all_o the_o world_n whereof_o we_o can_v large_o treat_v if_o it_o be_v not_o beside_o our_o subject_n to_o make_v vitrum_fw-la saturni_n take_v fifteen_o pound_n of_o calcine_v lead_n as_o we_o have_v show_v in_o the_o precede_a chapter_n and_o twelve_o pound_n of_o crystal_n or_o rochetta_n fritt_n according_a to_o what_o colour_n you_o will_v have_v mix_v they_o well_o together_o and_o put_v they_o in_o a_o pot_n in_o the_o furnace_n where_o ten_o hour_n after_o it_o will_v be_v in_o good_a fusion_n then_o cast_v the_o whole_a into_o water_n and_o take_v out_o speedy_o the_o remain_a lead_n at_o bottom_n of_o the_o vessel_n for_o fear_v it_o shall_v break_v then_o take_v it_o out_o of_o the_o water_n and_o dry_v it_o and_o put_v it_o into_o the_o same_o pot_n to_o melt_v again_o take_v care_v not_o to_o put_v in_o the_o grain_n of_o lead_n if_o there_o by_o any_o which_o be_v in_o the_o water_n and_o which_o will_v be_v loosen_v from_o the_o matter_n after_o your_o matter_n have_v be_v again_o in_o fusion_n six_o hour_n you_o may_v work_v it_o you_o may_v also_o make_v a_o glass_n of_o lead_n by_o take_v three_o part_n of_o lead_n one_o of_o fine_a sand_n and_o change_v they_o into_o glass_n in_o the_o furnace_n as_o also_o of_o three_o part_n of_o calcine_v litharge_n and_o one_o part_n of_o calcine_v flint_n melt_v and_o vitrify_v in_o the_o furnace_n together_o chap._n lxxxiii_o the_o way_n how_o to_o work_v glass_n of_o lead_n it_o be_v not_o enough_o to_o show_v how_o to_o make_v glass_n of_o lead_n if_o we_o do_v show_v how_o to_o work_v it_o too_o if_o any_o one_o will_v make_v vessel_n of_o it_o for_o use_v of_o any_o figure_n he_o must_v take_v a_o glass_n workman_n iron_n they_o use_v to_o take_v the_o metal_n out_o of_o the_o pot_n with_o and_o take_v what_o quantity_n of_o glass_n of_o lead_n with_o it_o he_o please_v when_o it_o be_v in_o fusion_n and_o let_v it_o a_o little_a cool_a then_o work_v it_o after_o the_o manner_n we_o have_v show_v chap._n 3._o you_o must_v clean_o well_o the_o marble_n you_o make_v use_v of_o and_o while_o the_o glass_n be_v cool_v you_o must_v wet_v the_o marble_n with_o cold_a water_n for_o otherwise_o the_o glass_n will_v scale_v it_o and_o part_n of_o the_o marble_n will_v stick_v to_o it_o if_o the_o marble_n be_v hard_a you_o have_v so_o much_o the_o less_o to_o fear_v for_o it_o will_v not_o break_v so_o easy_o nor_o stick_v to_o the_o glass_n chap._n lxxxiv_o to_o make_v glass_n of_o lead_n of_o a_o fair_a emerald_n colour_n the_o easiness_n of_o ting_a glass_n of_o lead_n of_o any_o colour_n be_v the_o reason_n you_o may_v be_v sure_a of_o give_v it_o a_o excellent_a emerald-green_a especial_o because_o green_n be_v also_o natural_a to_o it_o take_v twenty_o pound_n of_o crystal_n fritt_n powder_v and_o sear_v and_o sixteen_o pound_n of_o galx_n of_o lead_n also_o sift_v mix_v they_o well_o together_o then_o put_v they_o little_a by_o little_a into_o a_o pot_n heat_v in_o a_o furnace_n and_o eight_o or_o ten_o hour_n afterward_o it_o will_v be_v melt_v
in_o paint_v glass_n for_o before_o we_o proceed_v to_o prescribe_v the_o rule_n how_o to_o work_v the_o material_n must_v first_o be_v consider_v the_o white_a be_v compound_v of_o several_a ingredient_n the_o first_o be_v small_a white_a river_n pebble-stone_n heat_v red_a over_o a_o fire_n in_o a_o iron-ladle_n and_o throw_v afterward_o into_o a_o earthen-dish_n full_a of_o cold_a water_n to_o calcine_v they_o and_o this_o must_v be_v repeat_v several_a time_n until_o they_o be_v prepare_v afterward_o be_v dry_v pound_n they_o with_o a_o stone_n or_o glass-pestle_n in_o a_o stone-morter_n and_o so_o grind_v they_o upon_o a_o marble_n to_o a_o impalpable_a powder_n then_o mix_v a_o four_o part_n of_o nitre_n with_o it_o and_o calcine_v they_o in_o a_o crucible_n then_o pound_n and_o grind_v they_o again_o and_o calcine_v they_o a_o three_o time_n over_o a_o small_a fire_n than_o your_o former_a and_o so_o take_v they_o off_o for_o use._n this_o do_v when_o you_o will_v paint_n with_o 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there_o but_o the_o great_a stress_n lie_v in_o bake_v the_o crucible_n afterward_o in_o a_o small_a fire_n to_o cement_v the_o pore_n and_o make_v the_o earth_n compact_v as_o glass_n which_o will_v be_v very_o much_o further_v if_o you_o throw_v on_o it_o a_o considerable_a quantity_n of_o salt_n as_o it_o come_v out_o of_o the_o fire_n this_o will_v glaze_v it_o and_o capacitate_v it_o for_o retain_v the_o spirit_n in_o the_o fire_n chap._n ccvii_o to_o make_v red_a colour_n for_o glass_n paint_v this_o require_v as_o much_o caution_n as_o the_o blue_n you_o must_v take_v scale_n of_o iron_n and_o litharge_v of_o silver_n of_o each_o a_o dram_n feretto_n of_o spain_n half_a a_o dram_n rocaille_n three_o dram_fw-la and_o half_a grind_v all_o these_o for_o half_a a_o hour_n on_o a_o shallow_a copperplate_n in_o the_o mean_a time_n pound_n three_o dram_fw-la of_o bloodstone_n in_o a_o iron-mortar_n and_o add_v it_o to_o the_o rest_n then_o pound_n a_o dram_n of_o gum-arabic_n in_o 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this_o reason_n we_o need_v not_o use_v any_o tedious_a repetition_n you_o must_v take_v a_o ounce_n of_o zaffer_n and_o a_o ounce_n of_o very_a pure_a and_o clean_a perigeux_n two_o ounce_n of_o minium_n eight_o ounce_n of_o very_a fine_a white_a sand_n pound_n all_o these_o in_o a_o bell-metal_n mortar_n and_o reduce_v it_o to_o a_o impalpable_a powder_n put_v it_o afterward_o into_o a_o good_a crucible_n well_o cover_v and_o lute_v in_o the_o furnace_n keep_v a_o very_a good_a fire_n to_o it_o for_o a_o hour_n then_o draw_v it_o out_o and_o as_o soon_o as_o it_o be_v cold_a pound_n the_o mass_n over_o again_o in_o the_o same_o mortar_n to_o this_o add_v a_o four_o part_n of_o its_o weight_n of_o nitre_n mix_v they_o together_o and_o put_v they_o into_o
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better_a clear_v and_o more_o particularise_v by_o josephus_n in_o the_o 9_o the_o chap._n of_o his_o 2_o d_o book_n of_o the_o war_n of_o the_o jew_n wherein_o he_o acquaint_v we_o with_o several_a surprise_v thing_n concern_v the_o sand_n for_o make_v glass_n whereof_o we_o have_v be_v speak_v he_o take_v notice_n that_o the_o river_n belus_n arise_v out_o of_o mount-carmel_n and_o pass_v between_o ptolemais_n and_o tyrus_n that_o it_o be_v not_o above_o 2_o furlong_n from_o ptolemais_n that_o near_o this_o river_n be_v the_o sepulchre_n and_o statue_n of_o bel_n or_o belus_n father_n of_o ninus_n first_o king_n of_o the_o assyrian_n who_o the_o babylonian_n worship_v for_o a_o long_a time_n and_o sacrifice_v to_o by_o the_o order_n of_o ninus_n who_o be_v the_o first_o author_n of_o the_o idolatry_n and_o priesthood_n of_o the_o chaldean_n according_a to_o eusebius_n lib._n 1._o and_o isidore_n lib._n 8._o that_o that_o statue_n of_o belus_n who_o the_o pagan_n call_v jupiter_n be_v 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this_o be_v the_o aquafortis_n which_o be_v common_o call_v water_n of_o separation_n and_o the_o best_a that_o can_v be_v make_v there_o be_v some_o that_o instead_o of_o roch-allom_n take_v the_o best_a roman_a vitriol_n or_o the_o like_a you_o may_v know_v whether_o the_o vitriol_n be_v proper_a for_o this_o use_n or_o not_o by_o rub_v it_o on_o a_o piece_n of_o well_o polish_a iron_n if_o it_o be_v it_o will_v leave_v a_o copper_n colour_n on_o it_o then_o this_o vitriol_n the_o purification_n whereof_o we_o will_v give_v in_o the_o next_o chapter_n will_v make_v a_o aquafortis_n far_a more_o penetrate_a than_o the_o former_a now_o we_o come_v to_o show_v how_o to_o make_v the_o lute_n which_o we_o promise_v which_o though_o common_a be_v very_o useful_a in_o this_o case_n you_o must_v take_v one_o part_n of_o lome_n a_o fat_a earth_n which_o be_v find_v in_o river_n 3_o part_n of_o sand_n of_o common_a wood_n ash_n well_o sift_v and_o of_o the_o shearing_n of_o woollen_a cloth_n 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take_v out_o with_o a_o little_a iron_n shovel_n or_o a_o sort_n of_o iron_n peel_n b._n be_v the_o space_n or_o whole_a room_n of_o the_o ash-hole_n c._n be_v the_o firegrate_n which_o ought_v to_o be_v of_o square_a iron_n bar_v lie_v with_o the_o edge_n upward_o that_o the_o ash_n may_v not_o lie_v thereon_o which_o they_o will_v do_v if_o the_o flat_n be_v upward_o d._n be_v the_o place_n where_o the_o fire_n be_v make_v of_o coal_n or_o wood._n e._n be_v the_o door_n of_o it_o f._n be_v several_a hole_n wherein_o be_v put_v iron_n bar_n which_o go_v cross_v from_o one_o side_n to_o the_o other_o to_o keep_v up_o the_o vessel_n wherein_o the_o matter_n to_o be_v work_v be_v contain_v stop_v up_o the_o other_o hole_n that_o be_v not_o use_v with_o lute_n g._n be_v the_o work_n hole_n or_o little_a laboratory_n of_o the_o furnace_n h._n be_v a_o semicircular_a open_n with_o the_o like_a hole_n in_o the_o cover_n to_o put_v the_o neck_n of_o the_o retort_n through_o when_o you_o distil_v in_o a_o reverberatory_n or_o otherwise_o i._o be_v the_o inner_a part_n of_o the_o work-hole_n of_o the_o furnace_n k._n be_v two_o register_n l._n be_v the_o cover_n of_o the_o furnace_n for_o 8_o register_n m._n be_v a_o round_a hole_n which_o serve_v for_o a_o register_n to_o reverberate_v and_o to_o pass_v the_o neck_n of_o the_o matrass_n through_o which_o be_v in_o balneo_fw-la whether_o in_o digestion_n or_o otherwise_o n._n be_v the_o register_n which_o be_v to_o be_v open_v or_o shut_v to_o augment_v or_o diminish_v the_o heat_n of_o the_o fire_n of_o the_o reverberatory_n 2._o for_o a_o reverberatory_n furnace_n if_o you_o cover_v the_o work-hole_n with_o its_o cover_n or_o door_n and_o
prepare_v as_o by_o chap._n 18_o the_o whole_a reduce_v to_o fine_a powder_n mix_v they_o well_o together_o and_o put_v they_o in_o a_o crucible_n and_o cover_v and_o lute_n it_o well_o then_o put_v they_o in_o the_o furnace_n to_o bake_v the_o same_o space_n of_o time_n as_o before_o show_v and_o you_o will_v have_v a_o oriental_a sapphire_n of_o a_o very_a fine_a violet-colour_n chap._n cv_o another_o deep_a oriental_a sapphire_n this_o past_a for_o sapphire_n will_v be_v of_o a_o deep_a colour_n than_o the_o former_a you_o must_v put_v to_o two_o ounce_n of_o natural_a crystal_n prepare_v as_o in_o chap._n 92_o five_o ounce_n of_o minium_n forty_o two_o grain_n of_o prepare_a zaffer_n and_o eight_o grain_n of_o manganese_n of_o piedmont_n also_o prepare_v the_o whole_a reduce_v to_o a_o impalpable_a powder_n and_o mix_v well_o together_o moreover_o proceed_v as_o in_o chap._n 94_o observe_v well_o all_o circumstance_n and_o you_o will_v have_v a_o sapphire_n deep_o than_o the_o precede_a somewhat_o tend_v to_o a_o violet-colour_n which_o you_o may_v work_v and_o polish_v and_o set._n chap._n cvi_o to_o make_v a_o paste_n for_o a_o oriental_a granat_n the_o granat_n be_v very_o like_o the_o carbuncle_n for_o both_o be_v expose_v to_o the_o sun_n they_o exhibit_v the_o colour_n of_o live_a burn_a coal_n be_v between_o red_a and_o yellow_a which_o be_v the_o true_a colour_n of_o fire_n there_o be_v several_a sort_n of_o granat_n both_o oriental_a and_o occidental_a some_o deep_a other_o less_o so_o but_o the_o jeweller_n know_v how_o to_o make_v they_o appear_v by_o set_v they_o on_o silver_n foils_n we_o will_v not_o trouble_v the_o reader_n with_o all_o that_o may_v be_v say_v concern_v they_o several_a author_n have_v large_o treat_v thereof_o we_o shall_v content_v ourselves_o with_o show_v here_o the_o way_n how_o to_o imitate_v they_o by_o our_o art_n take_v two_o ounce_n of_o natural_a crystal_n prepare_v and_o six_o ounce_n of_o minium_n with_o sixteen_o 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empty_a space_n in_o the_o crucible_n because_o this_o matter_n rise_v more_o than_o the_o other_o wherein_o care_n must_v be_v take_v then_o you_o will_v have_v a_o deep_a oriental_a granat_n than_o the_o former_a which_o you_o may_v polish_v etc._n etc._n chap._n cviii_o another_o fair_a granat_n the_o paste_n for_o granat_n will_v be_v yet_o much_o fair_a than_o the_o precedent_n if_o you_o take_v to_o two_o ounce_n of_o natural_a crystal_n calcine_v and_o prepare_v as_o in_o chap._n 92_o 6_o ounce_n of_o vermilion_n or_o minium_n in_o fine_a powder_n thirty_o five_o grain_n of_o manganese_n of_o piedmont_n prepare_v and_o four_o grain_n of_o prepare_a zaffer_n as_o in_o book_n i._n which_o be_v well_o pulverise_v mix_v together_o in_o a_o crucible_n leave_v a_o great_a empty_a space_n than_o in_o the_o other_o by_o reason_n the_o matter_n rise_v more_o then_o lute_n the_o cover_v well_o let_v it_o dry_v and_o put_v it_o in_o the_o furnace_n to_o bake_n as_o we_o have_v show_v chap._n 94_o observe_v the_o same_o circumstance_n we_o have_v note_v on_o that_o subject_a and_o you_o will_v have_v a_o very_a fine_a granat_n fair_a than_o the_o rest_n chap._n cix_o observation_n for_o past_z and_o their_o colour_n we_o may_v have_v insert_v this_o discourse_n in_o chap._n 91_o as_o be_v the_o first_o of_o this_o book_n but_o we_o think_v it_o better_a to_o place_v it_o here_o where_o we_o will_v show_v divers_a way_n of_o make_v past_z no_o less_o fair_a than_o curious_a and_o where_o it_o will_v be_v necessary_a to_o give_v some_o little_a instruction_n to_o those_o who_o undertake_v to_o make_v they_o as_o also_o concern_v the_o degree_n of_o the_o colour_n that_o may_v be_v therein_o imitate_v the_o make_n of_o these_o past_z be_v the_o essential_a point_n of_o the_o business_n because_o on_o it_o depend_v the_o beauty_n of_o our_o artificial_a gem_n but_o the_o bake_n also_o be_v not_o of_o less_o consequence_n forasmuch_o as_o without_o that_o you_o can_v succeed_v it_o be_v not_o enough_o to_o well_o regulate_v the_o fire_n during_o the_o time_n we_o have_v note_a in_o chap._n 92._o whilst_o the_o matter_n be_v to_o stand_v in_o the_o furnace_n but_o you_o must_v also_o take_v care_n that_o the_o crucibles_fw-fr dont_fw-fr break_v before_o the_o matter_n be_v well_o bake_a and_o purify_v for_o if_o the_o crucible_n break_v and_o you_o be_v force_v to_o pour_v out_o the_o matter_n into_o another_o crucible_n the_o whole_a work_n will_v be_v spoil_v and_o the_o matter_n full_a of_o pustles_a and_o blister_n you_o have_v much_o better_o let_v the_o crucible_n cool_n if_o it_o be_v not_o quite_o break_v then_o lute_n it_o well_o and_o put_v it_o in_o the_o furnace_n again_o to_o make_v a_o end_n of_o bake_v you_o must_v also_o take_v notice_n not_o to_o break_v the_o crucible_n to_o take_v out_o the_o matter_n before_o it_o be_v perfect_o bake_v the_o curious_a may_v avoid_v these_o inconvenience_n if_o in_o room_n of_o ordinary_a crucible_n they_o make_v they_o of_o the_o same_o earth_n that_o the_o pot_n for_o make_v glass_n be_v make_v of_o which_o will_v resist_v the_o fire_n long_o than_o we_o have_v occasion_n here_o for_o bake_v and_o bear_v a_o more_o violent_a fire_n than_o we_o have_v occasion_n for_o those_o of_o germany_n also_o will_v do_v very_o well_o for_o this_o business_n because_o they_o endure_v the_o fire_n better_o than_o the_o ordinary_a one_o but_o i_o will_v yet_o abridge_v all_o these_o precaution_n by_o show_v a_o easy_a way_n to_o prepare_v the_o common_a crucibles_fw-fr which_o i_o have_v see_v try_v and_o resist_v the_o fire_n a_o long_a time_n take_v a_o ordinary_a crucible_n or_o rather_o one_o of_o germany_n heat_v it_o a_o little_a in_o the_o fire_n then_o dip_v it_o into_o olive_n oil_n and_o let_v it_o soak_v a_o little_a of_o it_o in_o then_o take_v glass_n reduce_v to_o a_o impalpable_a powder_n and_o strew_v it_o all_o over_o the_o crucible_n both_o without_o and_o within_o as_o thick_a as_o you_o can_v than_o put_v it_o into_o a_o furnace_n in_o a_o small_a heat_n and_o then_o increase_v the_o fire_n to_o a_o melt_a heat_n then_o the_o glass_n will_v melt_v and_o vitrifie_v so_o well_o with_o the_o crucible_n that_o it_o will_v endure_v the_o fire_n far_o long_o than_o be_v require_v for_o our_o business_n we_o will_v also_o further_o remark_n that_o the_o colour_n we_o here_o show_v for_o past_z be_v proportional_a to_o the_o dose_n we_o give_v they_o but_o those_o who_o will_v have_v they_o deep_o or_o light_a must_v regulate_v themselves_o according_o if_o they_o make_v small_a stone_n for_o ring_n the_o colour_n must_v be_v deep_a by_o reason_n of_o their_o smallness_n if_o they_o make_v great_a the_o colour_n must_v be_v light_a but_o deep_a for_o pendant_n than_o any_o other_o the_o whole_a depend_v much_o on_o the_o fancy_n of_o the_o workman_n who_o be_v to_o proportion_v the_o dose_n of_o the_o colour_v to_o the_o work_n he_o design_n in_o speak_v of_o these_o colour_n in_o this_o chapter_n our_o design_n be_v only_o to_o show_v more_o easy_a way_n to_o those_o who_o exercise_n themselves_o herein_o for_o otherwise_o we_o have_v sufficient_o discourse_v of_o they_o in_o the_o precedent_a chapter_n as_o we_o shall_v continue_v to_o do_v in_o the_o follow_v we_o shall_v say_v nothing_o further_o here_o of_o calcine_v copper_n or_o verdigrease_n or_o zaffer_n or_o manganese_n have_v sufficient_o do_v it_o before_o but_o only_o advertise_v the_o curious_a that_o there_o may_v be_v extract_v from_o gold_n a_o very_a fine_a red_a and_o one_o a_o little_a more_o obscure_a from_o iron_n a_o excellent_a green_n from_o copper_n a_o golden_a colour_n from_o lead_n blue_a from_o silver_n but_o a_o much_o fair_a from_o granat_n of_o bohemia_n which_o be_v low_o prize_v by_o
pound_n of_o common_a sulphur_n the_o whole_a reduce_v to_o powder_n and_o well_o mix_v with_o this_o powder_n cement_v your_o crystal_n and_o diamond_n of_o alencon_n well_o cut_v in_o a_o crucible_n cover_v and_o lute_v well_o be_v dry_a set_v it_o in_o a_o glass-house_n furnace_n three_o day_n in_o a_o place_n where_o the_o matter_n may_v be_v continual_o red_a hot_a without_o fusion_n if_o you_o have_v not_o a_o furnace_n ready_a at_o hand_n for_o that_o purpose_n and_o take_v care_v not_o to_o take_v out_o the_o crucible_n all_o at_o once_o but_o let_v it_o cool_v gentle_o otherwise_o the_o stone_n may_v break_v have_v break_v the_o crucible_n you_o will_v find_v your_o stone_n very_o fine_a and_o shine_v and_o which_o will_v resemble_v diamond_n of_o the_o old_a rock_n which_o repolish_a at_o the_o wheel_n to_o give_v it_o colour_n then_o work_v it_o and_o they_o can_v scarce_o be_v distinguish_v from_o fine_a one_o chap._n cxliv_o the_o way_n to_o turn_v white_a sapphire_n into_o true_a diamond_n the_o white_a sapphire_n be_v fine_a and_o fix_v be_v only_o imperfect_a by_o reason_n of_o its_o want_a colour_n and_o hardness_n which_o may_v be_v remedy_v by_o mean_n of_o art_n and_o be_v make_v to_o surpass_v nature_n because_o she_o onâ—y_o will_v have_v make_v it_o a_o perfect_a sapphire_n but_o art_n can_v â—urn_v it_o into_o a_o true_a diamond_n only_o fire_n can_v cause_v this_o effect_n in_o change_v its_o natural_a colour_n and_o give_v it_o that_o of_o a_o diamond_n thus_o take_v very_o fine_a sand_n wash_v it_o in_o several_a water_n â—o_o clean_o it_o till_o the_o water_n become_v clear_a and_o then_o dry_v it_o of_o this_o sand_n fill_v a_o crucible_n half_n full_a then_o â—ut_v in_o your_o sapphire_n and_o fill_v it_o up_o with_o the_o same_o sand._n then_o cover_v your_o crucible_n with_o a_o cover_n of_o the_o same_o earth_n or_o with_o another_o crucible_n lute_n the_o whole_a with_o a_o good_a lute_n as_o we_o have_v heretofore_o show_v lay_v it_o on_o a_o inch_n thick_a and_o let_v it_o dry_v in_o the_o shade_n be_v dry_a set_v it_o in_o a_o glass-house_n furnace_n approach_v it_o near_o the_o fire_n by_o degree_n and_o leave_v it_o twelve_o hour_n in_o the_o same_o degree_n of_o heat_n then_o withdraw_v it_o little_a by_o little_a for_o the_o space_n of_o six_o hour_n and_o let_v it_o cool_v gentle_o the_o crucible_n be_v cold_a break_v it_o and_o you_o will_v find_v your_o sapphire_n within_o which_o will_v have_v all_o the_o quality_n of_o a_o fine_a diamond_n that_o be_v its_o shine_a and_o hardness_n repolish_a it_o at_o the_o wheel_n and_o work_v it_o chap._n cxlv_o another_o way_n of_o turn_v the_o white_a sapphire_n into_o a_o true_a diamond_n here_o follow_v another_o noble_a method_n of_o convert_v the_o sapphire_n into_o a_o diamond_n which_o will_v be_v easy_a to_o those_o who_o have_v not_o the_o opportunity_n of_o a_o glass-house_n furnace_n for_o it_o may_v be_v do_v with_o a_o wind_n furnace_n in_o twelve_o hour_n time_n the_o material_n we_o be_v go_v to_o show_v which_o be_v use_v in_o this_o operation_n will_v at_o first_o seem_v very_o expensive_a but_o if_o you_o consider_v it_o diminish_v not_o but_o you_o find_v it_o all_o again_o you_o will_v easy_o see_v that_o the_o only_a expense_n be_v in_o the_o fire_n you_o must_v therefore_o begin_v by_o well_o wrap_v your_o white_a sapphire_n in_o a_o thin_a iron_n plate_n that_o it_o may_v be_v easy_o manage_v then_o take_v fine_a gold_n purify_v by_o antimony_n to_o the_o high_a put_v it_o in_o a_o crucible_n in_o a_o wind-furnace_n melt_v it_o and_o when_o it_o have_v a_o good_a fine_a gloss_n put_v the_o sapphire_n cover_v with_o the_o iron-plate_n into_o the_o bath_n so_o that_o it_o may_v float_v on_o the_o gold_n on_o every_o side_n then_o give_v it_o a_o strong_a fire_n for_o twelve_o hour_n so_o that_o the_o gold_n may_v be_v all_o the_o while_n in_o fusion_n take_v out_o your_o sapphire_n with_o a_o little_a pair_n of_o tongue_n shake_v out_o the_o gold_n that_o may_v chance_v to_o stick_v in_o the_o leaf-iron_n then_o let_v it_o cool_v by_o the_o fire_n gentle_o for_o fear_v it_o shall_v break_v be_v cold_a take_v away_o the_o plate_n or_o leaf_n of_o iron_n and_o you_o will_v have_v your_o sapphire_n of_o a_o admirable_a beauty_n it_o have_v acquire_v by_o that_o coction_n all_o the_o quality_n and_o perfection_n of_o the_o natural_a diamond_n polish_v it_o at_o the_o wheel_n and_o work_v it_o chap._n cxlvi_o another_o way_n to_o turn_v the_o white_a sapphire_n into_o a_o true_a diamond_n this_o way_n will_v be_v find_v by_o several_a to_o be_v more_o easy_a and_o better_a because_o it_o do_v not_o oblige_v to_o such_o a_o expense_n in_o gold_n so_o that_o people_n can_v purchase_v it_o this_o be_v the_o reason_n we_o show_v it_o here_o though_o other_o have_v speak_v of_o it_o and_o among_o the_o rest_n joh._n bapt._n de_fw-fr porta_n who_o have_v write_v of_o this_o art_n take_v file_n of_o iron_n or_o steel_n put_v they_o in_o a_o crucible_n then_o put_v in_o your_o white_a sapphire_n so_o that_o it_o may_v be_v whole_o cover_v with_o the_o file_n set_v the_o crucible_n in_o the_o furnace_n and_o give_v it_o a_o good_a fire_n that_o the_o file_n may_v be_v red_a hot_a without_o melt_v after_o it_o have_v be_v some_o time_n in_o this_o fire_n take_v it_o out_o with_o a_o little_a pair_n of_o iron-tongue_n to_o see_v if_o it_o be_v of_o the_o colour_n of_o diamond_n if_o not_o put_v it_o into_o the_o file_n again_o and_o reiterate_v this_o till_o it_o be_v perfect_a you_o may_v do_v the_o same_o thing_n with_o that_o fill_n of_o steel_n and_o a_o equal_a part_n of_o white_a enamel_n in_o powder_n have_v well_o mix_v they_o together_o put_v they_o in_o a_o crucible_n and_o put_v your_o sapphire_n in_o the_o middle_n of_o they_o after_o have_v first_o past_v they_o with_o your_o powder_n of_o enamel_n wet_v with_o hospital_n and_o well_o dry_v it_o at_o the_o fire_n when_o your_o 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direction_n for_o the_o choice_n of_o matter_n to_o be_v use_v and_o thence_o show_v the_o preparation_n for_o all_o sort_n and_o how_o to_o make_v and_o suit_v the_o colour_n most_o convenient_a on_o enamel_n the_o method_n not_o only_o use_v by_o the_o goldsmith_n but_o by_o such_o as_o form_v portraiture_n with_o it_o of_o all_o sort_n as_o man_n beast_n fowl_n and_o other_o curiosity_n very_o natural_o by_o a_o just_a disposure_n of_o the_o colour_n be_v most_o admirable_a to_o effect_v which_o no_o more_o be_v require_v than_o a_o light_a taper_n and_o a_o hollow_a pipe_n of_o metal_n for_o that_o purpose_n to_o blow_v the_o blaze_n to_o the_o matter_n and_o make_v it_o malleable_a and_o soft_a and_o thence_o the_o several_a
renew_v and_o revise_v the_o table_n be_v do_v in_o limn_v with_o oil_n and_o the_o painter_n observe_v that_o the_o piece_n must_v not_o be_v handle_v until_o they_o be_v well_o dry_v in_o the_o air_n so_o those_o in_o enamel_n must_v be_v let_v alone_o until_o they_o receive_v their_o perfection_n from_o the_o fire_n this_o be_v all_o to_o be_v observe_v in_o paint_v on_o enamel_n it_o remain_v only_o for_o we_o to_o show_v how_o to_o prepare_v your_o dark_a red_a for_o trace_v the_o design_n you_o may_v have_v it_o thus_o take_v the_o caput_fw-la mortuum_n which_o remain_v in_o the_o retort_n after_o the_o aquafortis_n be_v make_v of_o your_o vitriol_n and_o nitre_n grind_v it_o with_o oil_n of_o spike_n and_o so_o you_o have_v the_o dark_a red_a ready_a for_o your_o use_n or_o you_o may_v make_v it_o with_o crocus_n martis_n ground_n with_o oil_n of_o spike_n the_o end_n of_o the_o seven_o book_n of_o the_o art_n of_o glass_n book_n viii_o contain_v the_o way_n to_o make_v china_n or_o fine_a earthen_a ware_n how_o to_o enamel_n paint_v and_o gilled_a they_o chap._n cxciii_o porcelaine_v fayence_n china_n or_o fine_a earthenware_n be_v enamel_v with_o our_o white_a stuff_n which_o we_o have_v already_o prescribe_v for_o metal_n and_o its_o paint_v the_o same_o and_o of_o such_o colour_n as_o we_o have_v propose_v for_o enamel_n in_o the_o forego_n book_n and_o this_o oblige_v we_o to_o discourse_v thereof_o in_o this_o our_o eight_o book_n the_o custom_n of_o enamel_v on_o ware_n be_v of_o great_a antiquity_n than_o that_o on_o metal_n for_o in_o the_o time_n of_o porcenna_n who_o generous_o undertake_v the_o restauration_n of_o tarquin_n to_o the_o roman_a government_n in_o the_o consulate_a of_o valer._n publicola_n and_o horat._n pulvilius_fw-la ann._n mund._o 3444_o five_o hundred_o and_o four_o year_n before_o the_o come_n of_o jesus_n christ_n or_o thereabouts_o the_o practice_n of_o enamel_v on_o be_v be_v use_v in_o the_o estate_n of_o that_o prince_n 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from_o china_n and_o next_o to_o those_o be_v do_v at_o st._n cloud_n and_o roven_n but_o there_o be_v very_o good_a make_v in_o holland_n at_o 〈◊〉_d in_o italy_n and_o several_a other_o place_n in_o france_n the_o paint_n and_o enamel_v on_o these_o be_v what_o we_o be_v proper_o oblige_v to_o take_v notice_n of_o in_o our_o art_n however_o we_o shall_v slight_o touch_v upon_o the_o composition_n and_o mould_v the_o ware_n and_o for_o this_o we_o will_v prescribe_v fine_a and_o delicate_a method_n sufficient_a enough_o to_o answer_v the_o satisfaction_n of_o such_o as_o employ_v themselves_o in_o this_o art_n and_o of_o those_o person_n who_o curiosity_n lead_v they_o to_o inquire_v after_o thing_n whereof_o they_o be_v not_o already_o inform_v chap._n cxciv_o the_o furnace_n for_o make_v of_o china_n must_v be_v large_a with_o a_o open_v proportion_v to_o the_o vessel_n you_o be_v to_o place_v therein_o of_o these_o there_o be_v several_a sort_n but_o the_o most_o commodious_a must_v 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sort_n of_o work_n in_o the_o laboratory_n of_o chemistry_n because_o in_o it_o all_o the_o degree_n of_o fire_n may_v be_v find_v by_o the_o help_n of_o the_o low_a open_v and_o the_o funnel_n of_o the_o chimney_n you_o may_v else_o for_o bake_v your_o china_n make_v use_n of_o the_o furnace_n hereafter_o describe_v in_o chap._n 202._o where_o we_o discourse_n of_o paint_v on_o glass_n put_v thereinto_o your_o vessel_n of_o crucible-earth_n for_o bake_v the_o ware_n in_o and_o then_o cover_v over_o with_o a_o vault_a coverlid_n with_o a_o hole_n at_o top_n to_o let_v out_o the_o flame_n and_o smoke_n of_o the_o reverberatory_n fire_n for_o this_o reason_n there_o will_v be_v no_o occasion_n in_o this_o sort_n of_o furnace_n for_o any_o other_o open_v because_o the_o bake_n vessel_n with_o your_o ware_n be_v put_v in_o a_o top_n before_o the_o coverlid_n be_v lay_v on_o and_o so_o the_o fire_n circulate_v about_o it_o and_o it_o become_v very_o red_a whereby_o the_o china-ware_n be_v bake_v as_o be_v do_v in_o bake_v of_o pipe_n chap._n cxcu._n to_o make_v your_o stuff_n for_o china-ware_n the_o composition_n for_o this_o must_v be_v very_o fine_a because_o of_o the_o ware_n and_o not_o such_o as_o be_v use_v for_o ordinary_a vessel_n we_o will_v therefore_o prescribe_v the_o manner_n of_o make_v it_o to_o prevent_v the_o unsuccessful_a attempt_n of_o such_o as_o may_v be_v ignorant_a for_o this_o you_o must_v take_v of_o shell_n of_o every_o sort_n which_o be_v white_a and_o transparent_a grind_v they_o well_o on_o a_o marble_n then_o searce_a and_o reduce_v they_o to_o a_o impalpable_a powder_n to_o make_v your_o paste_n of_o this_o powder_n first_o dissolve_v a_o ounce_n of_o very_a white_a gum-arabic_n in_o a_o pail_n of_o water_n when_o it_o be_v well_o dissolve_v and_o mix_v with_o the_o water_n dissolve_v therein_o about_o a_o quarter_n as_o much_o quicklime_n as_o your_o powder_n weigh_v then_o stir_v and_o mix_v it_o very_o well_o and_o afterward_o put_v 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or_o figure_n on_o glass_n in_o paint_n gilding_n marble_a etc._n etc._n chap._n cci_o the_o art_n of_o paint_v have_v be_v still_o so_o noble_a and_o excellent_a that_o all_o those_o great_a person_n who_o have_v practise_v it_o be_v always_o distinguish_v among_o the_o most_o eminent_a of_o their_o age_n those_o celebrate_a piece_n we_o have_v of_o it_o in_o our_o day_n to_o the_o ornament_n and_o admiration_n of_o all_o europe_n have_v settle_v so_o great_a a_o veneration_n for_o their_o memory_n as_o will_v eternize_v it_o to_o posterity_n the_o dorian_n corinthian_n jonians_n and_o roman_n be_v the_o people_n that_o pay_v the_o most_o esteem_n to_o this_o noble_a art_n for_o which_o they_o conceive_v so_o great_a opinion_n and_o delight_n that_o they_o look_v upon_o the_o famous_a painter_n of_o their_o time_n as_o demigod_n and_o range_v they_o among_o the_o first_o and_o most_o learned_a man_n in_o the_o world_n the_o ancient_n do_v not_o only_o pay_v a_o deference_n and_o 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in_o all_o other_o art_n for_o prince_n and_o many_o of_o our_o monarch_n have_v grant_v the_o privilege_n of_o nobility_n to_o several_a master_n thereof_o to_o intimate_v to_o posterity_n the_o extraordinary_a esteem_n they_o have_v for_o they_o upon_o the_o excellency_n of_o those_o incomparable_a piece_n which_o their_o pencil_n have_v produce_v though_o paint_v on_o glass_n be_v very_o ancient_a it_o be_v yet_o much_o more_o modern_a than_o that_o of_o paint_v on_o wood_n or_o cloth_n as_o be_v of_o no_o long_o stand_v than_o this_o art_n of_o glass-work_n the_o first_o who_o paint_v on_o glass_n do_v it_o only_o in_o distemper_n that_o be_v in_o colour_n mix_v with_o glue_n but_o this_o not_o abide_v the_o injury_n of_o time_n they_o invent_v the_o way_n of_o do_v it_o with_o fire-proof_n colour_n which_o be_v incorporate_v with_o the_o glass_n by_o bake_v and_o melt_v they_o together_o and_o as_o soon_o as_o this_o secret_n be_v discover_v every_o body_n take_v delight_n to_o practise_v the_o draught_n of_o figure_n and_o entire_a history_n thereon_o for_o ornament_n whereof_o we_o have_v still_o some_o remain_a piece_n on_o old_a church_n glass_n but_o those_o figure_n before_o the_o year_n 1500_o have_v not_o half_a the_o sufficiency_n of_o base_a or_o relief_n as_o be_v require_v in_o paint_v those_o who_o will_v fain_o work_v in_o handsome_a and_o lively_a colour_n make_v use_v of_o glass-frit_a tinge_v in_o the_o glass-house_n as_o well_o for_o carnation_n as_o drapery_n whereon_o they_o draw_v the_o first_o line_n of_o the_o visage_n and_o other_o part_n of_o the_o body_n in_o black_a and_o so_o shadow_v they_o with_o stroke_n and_o dash_v but_o paint_v have_v since_o receive_v a_o improvement_n in_o france_n those_o work_n become_v more_o perfect_a and_o in_o so_o short_a a_o time_n with_o such_o advantage_n of_o make_v fair_a and_o most_o exquisite_a piece_n as_o be_v even_o at_o this_o day_n the_o admiration_n of_o the_o learned_a of_o which_o all_o the_o honour_n must_v be_v ascribe_v to_o the_o french_a who_o be_v the_o first_o discoverer_n of_o this_o great_a perfection_n in_o the_o art_n we_o may_v easy_o assign_v several_a way_n of_o this_o paint_n among_o the_o ancient_n but_o since_o they_o be_v out_o of_o practice_n and_o the_o latter_a method_n much_o more_o excellent_a we_o shall_v satisfy_v ourselves_o in_o prescribe_v only_o such_o as_o may_v suffice_v and_o gratify_v the_o curiosity_n of_o those_o who_o love_v this_o art_n and_o not_o only_o the_o method_n of_o paint_v but_o also_o how_o to_o prepare_v the_o colour_n to_o bake_v and_o finish_v they_o in_o the_o furnace_n of_o this_o we_o will_v give_v a_o short_a description_n in_o the_o next_o chapter_n that_o secret_a of_o order_v the_o fire_n which_o be_v the_o life_n and_o principal_a agent_n of_o all_o the_o work_n with_o that_o of_o gild_v marble_a etc._n etc._n as_o will_v be_v show_v in_o the_o sequel_n of_o this_o book_n the_o most_o part_n of_o ingredient_n useful_a for_o this_o service_n of_o paint_v will_v also_o thing_fw-mi the_o glass_n well_o enough_o and_o we_o will_v make_v use_n of_o those_o mention_v elsewhere_o to_o avoid_v useless_a repetition_n on_o the_o subject_a chap._n ccii_o a_o furnace_n for_o paint_v the_o glass_n and_o settle_v the_o colour_n we_o have_v mention_v this_o furnace_n in_o chap._n 194._o but_o do_v not_o take_v notice_n of_o its_o form_n or_o appurtenance_n because_o the_o business_n which_o oblige_v we_o to_o speak_v of_o it_o there_o be_v very_o different_a from_o this_o in_o this_o uppermost_a division_n must_v be_v put_v the_o aforesaid_a stove_n of_o good_a fire-proof_n crucible_n earth_n the_o bottom_n a_o inch_n and_o half_a thick_a and_o from_o thence_o up_o to_o the_o brim_n ten_o inch_n full_a it_o must_v be_v square_a as_o the_o furnace_n and_o have_v two_o inch_n room_n from_o on_o all_o side_n that_o the_o fire_n may_v flame_v round_o about_o it_o to_o bake_v the_o work_n and_o therefore_o place_v exact_o in_o the_o middle_n of_o the_o furnace_n there_o must_v be_v also_o in_o the_o fire-part_n of_o this_o stove_n a_o open_v just_a against_o and_o of_o the_o same_o size_n and_o form_n as_o that_o of_o the_o furnace_n for_o the_o conveniency_n of_o put_v the_o ware_n in_o and_o out_o take_v this_o method_n of_o distinguish_v the_o furnace_n in_o all_o its_o part_n and_o to_o lay_v down_o a_o clear_a description_n thereof_o observe_v the_o letter_n a_o be_v the_o ash-hole_n for_o the_o ash_n that_o fall_v from_o above_o through_o the_o iron-grate_n and_o note_v that_o the_o wide_a the_o open_v be_v the_o more_o violent_a will_v the_o fire_n be_v the_o letter_n b_o be_v the_o fire-place_n the_o letter_n c_o be_v three_o square_a iron-bar_n to_o support_v the_o pan_n for_o the_o ware_n the_o letter_n d_o be_v the_o open_v of_o the_o furnace_n and_o pan_n through_o which_o the_o ware_n must_v be_v convey_v in_o and_o out_o the_o letter_n e_z be_v the_o earthen_a pan_n wherein_o all_o the_o painted-ware_n must_v be_v bake_v the_o letter_n f_o be_v two_o half_a lid_n of_o potter_n earth_n for_o cover_v the_o whole_a furnace_n above_o as_o soon_o as_o the_o stove_n be_v full_a of_o ware_n they_o must_v be_v well_o close_v and_o lute_v together_o to_o prevent_v the_o air_n come_v in_o any_o where_o but_o by_o the_o four_o square_a hole_n at_o both_o end_n of_o the_o lid_n and_o the_o two_o semicircle_n in_o the_o middle_n which_o make_v a_o round_a hole_n for_o a_o chimney_n when_o the_o two_o half_a lid_n be_v close_v those_o five_o holes_n be_v for_o let_v out_o the_o smoke_n and_o flame_n of_o the_o furnace_n chap._n cciii_o to_o make_v white-ground_n for_o paint_v on_o glass_n now_o to_o pursue_v our_o work_n we_o will_v begin_v with_o the_o preparation_n of_o all_o the_o colour_n to_o be_v use_v
without_o any_o prejudice_n to_o the_o draught_n from_o displace_v they_o and_o so_o confound_v the_o figure_n and_o pourtrait_n or_o from_o the_o lead_n which_o must_v join_v they_o afterward_o by_o obscure_v any_o part_n of_o the_o paint_n then_o mark_v out_o each_o piece_n on_o the_o tablet_n by_o no._n 1_o 2_o 3._o for_o better_a distinction_n and_o so_o trace_v they_o over_o with_o the_o black_a give_v in_o chap._n 204._o with_o a_o pencil_n as_o we_o shall_v further_o show_v do_v this_o very_o exact_o neither_o too_o slight_o nor_o too_o thick_a and_o so_o let_v it_o stand_v two_o day_n to_o dry_a before_o you_o paint_v it_o then_o have_v all_o your_o colour_n in_o readiness_n so_o as_o direct_v in_o the_o forego_n chapter_n fill_v your_o piece_n off_o with_o colour_n for_o which_o use_v the_o nib_n of_o the_o pencil_n especial_o in_o carnation_n where_o you_o must_v be_v very_o exact_a you_o must_v also_o be_v very_o circumspect_a and_o expedition_n and_o take_v a_o great_a deal_n of_o care_n not_o to_o blot_v or_o blur_v the_o tracing_n and_o choose_v rather_o to_o paint_v on_o the_o other_o side_n of_o the_o glass_n all_o the_o colour_n except_o yellow_a may_v be_v apply_v on_o the_o same_o side_n and_o that_o you_o must_v do_v on_o the_o contrary_a side_n because_o it_o be_v apt_a to_o mingle_v with_o the_o other_o colour_n and_o if_o near_o the_o blue_n will_v compose_v a_o green_a so_o that_o for_o want_v of_o such_o precaution_n the_o whole_a work_n may_v be_v spoil_v if_o the_o yellow_a transmit_v itself_o perfect_o through_o the_o quarre_n it_o be_v as_o well_o as_o if_o it_o have_v be_v do_v on_o the_o same_o side_n and_o take_v notice_n by_o the_o way_n that_o the_o other_o colour_n have_v not_o so_o ready_a a_o transition_n because_o they_o consist_v of_o a_o grosser_n body_n the_o yellow_a aught_o to_o be_v very_o equal_o and_o just_o lay_v on_o in_o a_o great_a or_o lesser_a quantity_n as_o you_o will_v have_v your_o shadow_n observe_v this_o too_o in_o the_o rest_n especial_o to_o lay_v they_o on_o as_o quick_a as_o possible_a as_o we_o have_v already_o say_v particular_o the_o azure_a green_a and_o purple_a require_v the_o most_o exactness_n of_o any_o now_o to_o set_v off_o and_o heighten_v the_o light_n in_o pile_v a_o beard_n describe_v hair_n in_o drapery_n or_o otherwise_o use_v the_o handle_n or_o butt-end_n of_o the_o pencil_n a_o small_a point_a stick_n or_o quill_n wherewith_o take_v off_o the_o colour_n in_o those_o place_n you_o will_v enlighten_v which_o be_v easy_o do_v such_o work_n as_o be_v do_v in_o grisaille_n you_o must_v paint_v after_o this_o manner_n trace_v your_o piece_n with_o black_a and_o let_v it_o dry_v for_o two_o day_n entire_o do_v it_o over_o very_o light_o and_o equal_o with_o a_o wash_v so_o thin_a lay_v on_o as_o not_o to_o efface_v the_o first_o line_n and_o let_v it_o dry_v for_o two_o day_n after_o this_o run_v it_o over_o again_o with_o the_o same_o wash_v where_o you_o find_v it_o convenient_a to_o give_v a_o second_o thing_fw-mi and_o let_v it_o dry_v two_o day_n long_o then_o to_o give_v it_o the_o light_n and_o convenient_a heightning_n take_v the_o sharp_a butt-end_n of_o your_o pencil_n or_o point_a stick_n or_o pen_n as_o before_o and_o take_v off_o the_o colour_n of_o the_o first_o wash_v in_o the_o most_o necessary_a place_n and_o so_o your_o work_n will_v be_v finish_v to_o make_v this_o wash_n be_v easy_a take_v a_o small_a pewter_n cup_n or_o other_o vessel_n and_o put_v therein_o a_o quantity_n of_o black_a colour_n then_o dissolve_v gum-arabic_n powder_v in_o its_o weight_n of_o wine_n and_o throw_v this_o on_o the_o black_a in_o the_o pewter-dish_n or_o saucer_n that_o it_o may_v be_v very_o clear_a and_o not_o easy_o dry_v and_o that_o you_o may_v have_v your_o wash_n for_o paint_v glass_n in_o grisaille_n or_o grace_n chap._n ccxiii_o how_o to_o order_n your_o glass_n in_o the_o furnace_n after_o paint_v and_o to_o manage_v the_o fire_n after_o your_o glass_n be_v full_o paint_v and_o the_o draught_n perfect_o finish_v the_o difficulty_n will_v be_v to_o bake_n the_o piece_n so_o as_o to_o give_v it_o a_o consistency_n with_o the_o glass_n by_o penetration_n which_o may_v be_v thus_o do_v you_o must_v work_v with_o the_o furnace_n mention_v in_o chap._n 202._o and_o its_o stove_n of_o good_a crucible_n earth_n to_o contain_v all_o the_o work_n which_o must_v be_v stratify_v on_o this_o manner_n take_v good_a quicklime_n well_o digest_v sear_v and_o fine_o pulverise_v and_o for_o the_o better_a security_n let_v it_o digest_v thrice_o in_o a_o potter_n furnace_n and_o so_o powder_n and_o searce_v it_o then_o make_v a_o very_a even_o lay_v thereof_o about_o half_a a_o inch_n thick_a on_o the_o bottom_n of_o your_o stove_n and_o then_o a_o lay_v of_o piece_n of_o break_a glass_n and_o afterward_o another_o lay_n of_o powder_n and_o so_o another_o of_o glass_n than_o another_o of_o powder_n the_o reason_n of_o make_v this_o stratification_n of_o powder_n and_o old_a glass_n be_v to_o prevent_v any_o injury_n from_o the_o violence_n of_o the_o fire_n which_o will_v be_v very_a smart_n under_o the_o stove_n this_o do_v upon_o the_o three_o bed_n of_o powder_n lay_v a_o lay_n of_o paint_a glass_n and_o so_o continue_v s.s.s._n each_o lay_n of_o powder_n and_o glass_n be_v equal_o or_o even_o make_v until_o all_o the_o piece_n of_o paint_n be_v put_v in_o or_o the_o stove_n full_a and_o upon_o the_o last_o lie_v of_o glass_n lie_v the_o uppermost_a of_o powder_n somewhat_o thick_a than_o the_o former_a then_o cover_v the_o furnace_n with_o its_o shrowd_n of_o earth_n join_v and_o lute_v they_o well_o together_o all_o round_a with_o the_o best_a lute_n so_o that_o it_o may_v admit_v of_o no_o respiration_n but_o through_o the_o fire_n hole_n or_o the_o open_v of_o the_o furnace_n whilst_o you_o draw_v out_o the_o proof_n or_o trial_n you_o make_v as_o we_o have_v hint_v elsewhere_o your_o furnace_n be_v thus_o order_v and_o the_o lute_n dry_v very_o well_o begin_v to_o heat_v it_o gentle_o with_o some_o charcoal_n on_o the_o outside_n of_o the_o furnace_n at_o the_o entrance_n and_o so_o by_o degree_n and_o very_o leisurely_o improve_n it_o lest_o the_o glass_n shall_v be_v break_v or_o the_o paint_v spoil_v continue_v thus_o for_o two_o hour_n than_o thrust_v the_o fire_n in_o further_a and_o let_v it_o remain_v there_o for_o a_o hour_n put_v it_o in_o by_o little_a and_o little_a under_o the_o stove_n where_o leave_v it_o for_o two_o hour_n long_o then_o increase_v the_o fire_n by_o degree_n for_o two_o hour_n and_o so_o continue_v to_o apply_v fuel_n until_o the_o furnace_n be_v full_a of_o charcoal_n and_o you_o perceive_v the_o flame_n convey_v its_o self_n through_o every_o hole_n of_o the_o cover_n keep_v it_o thus_o very_o violent_a for_o three_o or_o four_o hour_n shut_v the_o door_n of_o the_o furnace_n you_o must_v be_v very_o cautious_a and_o circumspect_a during_o the_o whole_a work_n from_o the_o first_o two_o hour_n that_o the_o fire_n remain_v at_o the_o entrance_n observe_v from_o time_n to_o time_n to_o draw_v forth_o your_o trial_n or_o piece_n of_o proof_n in_o your_o stove_n to_o see_v if_o the_o colour_n be_v melt_v and_o the_o yellow_a qualify_v you_o may_v perceive_v how_o the_o work_n go_v on_o by_o the_o sparkle_a of_o the_o iron-bar_n under_o the_o stove_n as_o soon_o as_o you_o find_v your_o colour_n almost_o do_v improve_v the_o fire_n with_o some_o very_a small_a billet_n of_o dry_a wood_n they_o must_v be_v very_o little_a for_o ease_v in_o put_v they_o in_o and_o to_o prevent_v smoke_v and_o to_o make_v the_o flame_n environ_fw-fr and_o reverberate_v over_o and_o round_o about_o the_o stove_n which_o must_v be_v continue_v until_o you_o have_v finish_v this_o will_v be_v in_o twelve_o or_o fourteen_o hour_n then_o let_v the_o fire_n go_v out_o and_o the_o work_n cool_v of_o its_o self_n and_o so_o take_v it_o out_o and_o it_o will_v be_v finish_v chap._n ccxiu_o another_o way_n to_o paint_n on_o glass_n though_o the_o former_a way_n be_v very_o fine_a and_o lasting_a as_o can_v be_v yet_o we_o will_v here_o show_v another_o more_o easy_a and_o altogether_o as_o effectual_a take_v very_o white_a glass_n varnish_n it_o very_o thin_a on_o one_o side_n with_o a_o white_a varnish_n then_o have_v before_o make_v choice_n of_o some_o fine_a impress_n or_o cut_v on_o paper_n just_a fit_a for_o the_o piece_n of_o glass_n you_o design_v to_o paint_v its_o fancy_n on_o dip_v it_o in_o water_n and_o let_v it_o soak_v and_o dry_v a_o little_a clap_v the_o picture-side_n thereof_o to_o the_o varnish-side_n of_o the_o glass_n as_o exact_o plain_a and_o even_o