35._o and_o in_o the_o emerald_n colour_n of_o glass_n of_o lead_n chap._n 65._o and_o for_o the_o same_o colour_n in_o past_z it_o be_v use_v indifferent_o with_o verdigreas_n chap._n 77_o 78_o 79._o and_o in_o black_n chap._n 101._o but_o for_o a_o fair_a red_a crocus_n martis_n make_v with_o sulphur_n chap._n 128._o but_o for_o more_o fair_a colour_n crocus_n martis_n make_v with_o aquafortis_n chap._n 43._o but_o so_o as_o the_o best_a colour_n from_o brass_n be_v of_o vitriol_n of_o venus_n the_o prime_a and_o light_a colour_n from_o iron_n or_o steel_n be_v that_o which_o be_v make_v with_o aqua-regis_a which_o proceed_v partly_o from_o the_o mixture_n of_o shall_fw-mi ammoniac_a and_o partly_o from_o a_o fine_a solution_n of_o it_o and_o thus_o have_v pass_v over_o the_o prime_a material_n and_o preparation_n for_o colour_n in_o glass_n the_o rest_n of_o the_o work_n consist_v principal_o in_o the_o due_a mixture_n of_o the_o say_a colour_n with_o the_o circumstance_n which_o our_o author_n have_v full_o do_v we_o shall_v be_v very_o brief_a in_o what_o follow_v and_o shall_v only_o deliver_v here_o one_o preparation_n come_v to_o my_o knowledge_n whilst_o a_o secret_a of_o great_a value_n but_o now_o common_o enough_o know_v to_o the_o furnace_n and_o it_o be_v this_o take_v of_o antimony_n and_o saltpetre_n well_o ground_n and_o mix_v of_o each_o twelve_o pound_n together_o with_o 200_o weight_n of_o the_o common_a material_n for_o glass_n wherewith_o this_o mixture_n of_o antionomy_n and_o peter_n must_v be_v also_o well_o unite_v and_o then_o calcine_v in_o the_o calcar_fw-la and_o make_v into_o a_o frit_n or_o which_o be_v all_o one_o make_v regulus_n of_o antimony_n with_o crude_a antimony_n and_o peter_n the_o manner_n every_o chemist_n know_v which_o be_v mix_v with_o the_o metal_n afford_v a_o very_a white_a enamel_n and_o serve_v with_o other_o mixture_n for_o various_a colour_n chap._n 29._o port_n l._n 6._o c._n 5._o to_o colour_v the_o blue_a gemm_n which_o the_o common_a people_n call_v aqua-marina_a and_o our_o jeweller_n egmarine_n a_o kind_a of_o saphire_n beat_v burn_v brass_n into_o a_o most_o fine_a and_o impalpable_a powder_n otherwise_o a_o courser_n gemm_n will_v be_v make_v thereof_o and_o let_v it_o be_v mix_v with_o glass_n the_o quantity_n can_v be_v determine_v for_o they_o be_v make_v deep_a or_o light_a for_o one_o pound_n of_o metal_n one_o drachm_n of_o burn_a brass_n will_v suffice_v chap._n 32._o for_o the_o emerald_n colour_n porta_n l._n 6._o c._n 5._o thus_o when_o you_o have_v colour_v that_o egmarine_n you_o shall_v easy_o turn_v it_o to_o a_o emerald_n by_o add_v half_a crocus_n martis_n to_o the_o calcine_v brass_n to_o wit_n if_o at_o first_o we_o put_v in_o a_o four_o part_n of_o brass_n we_o now_o add_v a_o eight_o part_n of_o crocus_n and_o as_o much_o calcine_v brass_n observe_v that_o they_o boil_v together_o six_o hour_n after_o the_o colour_n be_v put_v in_o the_o stuff_n that_o the_o jewel_n may_v grow_v clear_a which_o become_v cloudy_a by_o put_v in_o the_o colour_n brass_n be_v heavy_a and_o when_o it_o be_v mix_v with_o the_o metal_n every_o moment_n it_o will_v sink_v to_o the_o bottom_n of_o the_o pot_n and_o make_v the_o gemm_n more_o dilute_a wherefore_o you_o must_v very_o often_o stir_v it_o let_v the_o fire_n decrease_v by_o little_a and_o little_a till_o the_o furnace_n grow_v cold_a let_v the_o pot_n be_v take_v out_o of_o the_o furnace_n and_o be_v break_v they_o afford_v you_o counterfeit_a jewel_n observation_n on_o the_o author_n rosichiero_n whereof_o thus_o port_n lib._n 6._o cap._n 9_o but_o the_o more_o skilful_a and_o modern_a glass-man_n in_o colour_v enamel_n of_o a_o clear_a rose-colour_n the_o common_a people_n call_v it_o rosachiero_n take_v not_o a_o little_a pain_n see_v our_o ancestor_n make_v it_o artificial_o and_o beautiful_o chap._n 37._o our_o author_n advise_v you_o to_o make_v your_o aquafortis_n etc._n etc._n yourself_o and_o good_a reason_n for_o it_o for_o one_o pound_n of_o common_a aquafortis_n upon_o my_o reiterated_a experience_n shall_v yield_v but_o four_o ounce_n of_o good_a spirit_n the_o other_o 12_o ounce_n will_v be_v phlegm_n of_o vitriol_n this_o addition_n of_o white_a arsenic_n in_o the_o make_n of_o aquafortis_n i_o find_v in_o the_o lady_n isabel_n cortese_fw-it print_v at_o venice_n in_o italian_n 18_o year_n before_o the_o publication_n of_o this_o work_n many_o be_v the_o composition_n of_o this_o water_n but_o nitre_n be_v the_o principal_a operative_a ingredient_n in_o they_o all_o most_o make_v it_o of_o vitriol_n some_o of_o english_a copperas_n which_o serve_v for_o common_a use_n and_o for_o bow-dies_a though_o make_v of_o dantzick_n copperas_n will_v be_v better_o for_o that_o use_n for_o this_o the_o refiner_n use_v find_v a_o dirtiness_n from_o our_o english_a some_o add_v alum_n instead_o of_o vitriol_n but_o that_o yield_v at_o best_a but_o a_o weak_a phlegm_n other_o have_v make_v essay_n with_o sal_fw-la gemm_n but_o they_o find_v that_o this_o salt_n afford_v no_o spirit_n but_o stick_v to_o the_o neck_n of_o the_o retort_n hinder_v the_o passage_n of_o the_o spirit_n and_o break_v the_o vessel_n when_o the_o red_a fume_n be_v pass_v all_o the_o spirit_n of_o nitre_n be_v raise_v and_o then_o the_o fire_n be_v to_o be_v extinguish_v for_o after_o follow_v only_o the_o spirit_n of_o vitriol_n which_o hinder_v the_o operation_n of_o the_o spirit_n of_o nitre_n towards_o the_o solution_n of_o metal_n i_o have_v often_o see_v singular_a good_a part_a water_n draw_v by_o the_o refiner_n twice_o in_o 24_o hour_n in_o which_o time_n with_o their_o fire_n not_o much_o of_o the_o spirit_n of_o vitriol_n can_v arise_v which_o require_v common_o three_o day_n with_o the_o strong_a fire_n can_v be_v make_v for_o the_o two_o last_o day_n to_o draw_v off_o both_o the_o spirit_n and_o ponderous_a oil_n from_o it_o though_o the_o volatility_n of_o the_o nitre_n in_o aquafortis_n may_v help_v to_o raise_v they_o one_o thing_n our_o author_n omit_v though_o very_o necessary_a to_o be_v do_v before_o the_o aquafortis_n be_v use_v practise_v constant_o by_o the_o refiner_n else_o their_o water_n will_v be_v foul_a the_o manner_n be_v thus_o as_o you_o have_v it_o in_o beg._n tyrocin_n chym._n c._n 3._o take_v of_o the_o distil_a water_n and_o put_v into_o it_o a_o penny_n weight_n of_o refine_a silver_n and_o dissolve_v it_o upon_o coal_n then_o pour_v this_o silver_n water_n into_o three_o part_n more_o of_o the_o unfined_z aquafortis_n which_o will_v become_v of_o a_o milky_a colour_n than_o they_o let_v it_o settle_v and_o decant_v off_o the_o clear_a this_o settle_v the_o refiner_n call_v the_o fix_n and_o cast_v it_o into_o a_o tub_n of_o water_n of_o 20_o gallon_n all_o which_o it_o will_v in_o a_o moment_n turn_v to_o a_o milk_n colour_n i_o know_v a_o refine_a who_o destil_v his_o aquafortis_n out_o of_o a_o iron_n pot_n which_o he_o find_v to_o make_v a_o strong_a water_n beside_o the_o great_a charge_n in_o pot_n and_o fire_n save_v you_o may_v see_v the_o way_n in_o the_o commentator_n on_o beguin_n chap._n 40._o you_o need_v not_o charge_v your_o aqua-regis_a with_o so_o much_o shall_v ammoniac_a as_o it_o will_v dissolve_v one_o ounce_n and_o a_o half_a to_o a_o pint_n be_v sufficient_a i_o wonder_v at_o beguins_n way_n of_o make_v this_o water_n who_o distil_v the_o saltpetre_n and_o sal_fw-la ammoniac_a together_o but_o experience_n have_v teach_v i_o that_o half_a the_o quantity_n of_o aqua-regis_a wherein_o sal_fw-la ammoniac_a have_v be_v dissolve_v will_v do_v as_o much_o as_o near_o double_a the_o quantity_n of_o that_o wherein_o it_o have_v be_v distil_v aqua-regis_a only_a black_n silver_n but_o it_o will_v slow_o dissolve_v very_o thin_a plate_n of_o copper_n and_o tin_n as_o aquafortis_n will_v corrode_v leaf-gold_n but_o if_o you_o draw_v off_o the_o water_n when_o it_o have_v dissolve_v gold_n than_o it_o will_v fall_v upon_o silver_n or_o other_o metal_n chap._n 42._o the_o way_n of_o make_v calcidony_n jasper_n and_o agat_n seem_v to_o be_v the_o same_o with_o make_v marble_a paper_n describe_v exact_o by_o kirch_n l._n 10._o the_o luce_n &_o umbra_fw-la par_fw-fr 2._o c._n 4._o and_o transcribe_v by_o schott_n par_fw-fr 1._o l._n 5._o chrom_n 9_o the_o way_n whereof_o be_v that_o several_a colour_n be_v dissolve_v in_o several_a liquor_n proper_a to_o dissolve_v they_o and_o be_v such_o as_o will_v not_o ready_o or_o not_o all_o mix_v one_o with_o another_o when_o put_v into_o water_n before_o they_o be_v cast_v upon_o the_o paper_n to_o receive_v this_o variety_n of_o colour_n and_o so_o in_o like_a manner_n variety_n of_o material_n be_v mix_v together_o and_o such_o as_o will_v not_o incorporate_v each_o with_o other_o
have_v omit_v nothing_o material_a in_o the_o author_n for_o what_o need_n be_v there_o to_o say_v as_o ofteu_o as_o manganese_n be_v boil_v with_o the_o metal_n that_o you_o must_v do_v thus_o and_o thus_o lest_o it_o run_v into_o the_o fire_n &_o c_o or_o to_o repeat_v the_o same_o process_n and_o rule_v in_o â—ach_n new_a colour_n for_o paste_n or_o glass_n of_o lead_n though_o you_o may_v find_v some_o needless_a repetition_n too_o in_o this_o translation_n not_o omit_v i_o confess_v these_o reiteration_n cause_v a_o nausea_n in_o myself_o and_o believe_v they_o will_v in_o thou_o and_o therefore_o i_o pass_v they_o over_o then_o observe_v that_o there_o be_v many_o word_n peculiar_a to_o this_o art_n i_o be_v compel_v to_o have_v recourse_n to_o the_o workman_n and_o for_o sueh_a thing_n and_o material_n not_o use_v nor_o know_v here_o to_o take_v they_o upon_o trust_n from_o such_o workman_n as_o have_v wrought_v at_o muran_n and_o other_o part_n of_o italy_n as_o for_o other_o thing_n i_o have_v careful_o surveid_v they_o myself_o now_o for_o the_o observation_n i_o have_v be_v more_o large_a especial_o in_o a_o business_n wherein_o so_o little_o have_v be_v say_v and_o therefore_o have_v deliver_v whatsoever_o be_v material_a that_o i_o have_v meet_v with_o in_o any_o good_a author_n concern_v whatsoever_o neri_n treat_v of_o that_o thou_o may_v have_v together_o all_o that_o be_v substantial_o write_v upon_o this_o unusual_a subject_n and_o have_v supply_v some_o thing_n defective_a in_o our_o author_n or_o very_o fit_a to_o be_v know_v to_o curious_a person_n last_o i_o doubt_v not_o but_o our_o workman_n in_o this_o art_n will_v be_v much_o advantage_v by_o this_o publication_n who_o have_v within_o these_o twenty_o year_n last_o pass_v much_o improve_v themselves_o to_o their_o own_o great_a reputation_n and_o the_o credit_n of_o our_o nation_n insomuch_o that_o few_o foreiner_n of_o that_o profession_n be_v now_o leave_v among_o we_o and_o this_o i_o the_o rather_o say_v because_o a_o eminent_a workman_n now_o a_o master_n tell_v i_o the_o most_o of_o the_o skill_n he_o have_v be_v gain_v by_o this_o true_a and_o excellent_a book_n they_o be_v his_o own_o word_n and_o therefore_o i_o doubt_v not_o but_o it_o will_v give_v some_o light_n and_o advantage_n to_o our_o countryman_n of_o that_o profession_n which_o be_v my_o principal_a aim_n and_o last_o for_o the_o exotic_a word_n you_o will_v meet_v with_o in_o read_v this_o book_n they_o be_v now_o current_a with_o we_o or_o else_o expound_v in_o my_o observation_n fruere_fw-la &_o vtere_fw-la c._n m._n to_o avoid_v our_o author_n repetition_n observe_v 1_o all_o the_o fire_n must_v be_v make_v with_o dry_a and_o hard_a wood._n 2._o when_o the_o glass_n be_v colour_v before_o you_o work_v it_o mix_v the_o colour_n well_o which_o otherwise_o sink_v to_o the_o bottom_n of_o the_o pot_n with_o the_o metal_n that_o the_o glass_n may_v be_v colour_v throughout_o this_o must_v be_v observe_v all_o the_o time_n you_o work_v the_o glass_n into_o any_o vessel_n 3._o the_o sign_n that_o brass_n or_o copper_n be_v well_o calcine_v be_v that_o they_o be_v put_v into_o the_o metal_n make_v it_o swell_v and_o sudden_o rise_v if_o they_o be_v calcine_v too_o much_o or_o too_o little_a those_o sign_n be_v want_v and_o glass_n make_v thereof_o will_v be_v black_a and_o foul_a 4._o manganese_n consume_v the_o natural_a greenness_n of_o glass_n 5._o copper_n brass_n lead_v iron_n and_o all_o composition_n of_o they_o as_o also_o manganese_n must_v be_v put_v into_o the_o metal_n but_o a_o little_a at_o a_o time_n and_o at_o convenient_a distance_n and_o the_o pot_n must_v be_v large_a and_o not_o fill_v too_o full_a because_o they_o all_o swell_v and_o rise_v much_o and_o so_o be_v apt_a to_o run_v over_o into_o the_o fire_n to_o your_o loss_n to_o extract_v the_o salt_n of_o polverine_n rochetta_n and_o barillia_fw-la wherewith_o crystal_n fritt_v call_v bollito_n be_v make_v the_o foundation_n of_o the_o art_n of_o glass-work_n with_o a_o new_a and_o secret_a way_n chap._n i._n polverine_n or_o rochetta_n which_o come_v from_o the_o levant_n and_o syria_n be_v the_o ash_n of_o a_o certain_a herb_n grow_v there_o in_o abundance_n there_o be_v no_o doubt_n but_o that_o it_o make_v a_o far_o white_a salt_n than_o barillia_fw-la of_o spain_n and_o therefore_o when_o you_o will_v make_v a_o crystal_n very_o perfect_a and_o beautiful_a make_v it_o of_o salt_n extract_v from_o polverine_n or_o rochetta_n of_o the_o levant_n for_o though_o barillia_fw-la yield_v more_o salt_n yet_o crystal_n make_v therewith_o always_o incline_v to_o a_o blewness_n and_o have_v not_o that_o whiteness_n and_o fairness_n as_o that_o make_v of_o polverine_n have_v the_o way_n often_o by_o i_o practise_v to_o extract_v the_o salt_n perfect_o from_o both_o of_o they_o be_v this_o which_o follow_v powder_n these_o ash_n and_o sift_v they_o with_o a_o fine_a sieve_n that_o the_o small_a piece_n go_v not_o thorough_a but_o only_o the_o ash_n the_o fine_a the_o sieve_n the_o more_o salt_n be_v extract_v in_o buy_v of_o either_o of_o these_o ash_n observe_v that_o they_o abound_v in_o salt_n this_o be_v know_v by_o touch_v they_o with_o the_o tongue_n and_o taste_v what_o salt_n they_o contain_v but_o the_o safe_a way_n of_o all_o be_v to_o make_v a_o essay_n of_o they_o in_o a_o melting-pot_n and_o to_o see_v whether_o they_o bear_v much_o sand_n or_o tarso_n a_o thing_n common_a in_o this_o art_n and_o which_o the_o conciator_n very_o well_o know_v set_a up_o brass_a copper_n with_o their_o furnace_n like_o those_o of_o the_o dyer_n great_a or_o lesser_a according_a as_o you_o have_v occasion_n to_o make_v a_o great_a or_o lesser_a quantity_n of_o salt_n fill_v these_o copper_n with_o fair_a and_o clear_a water_n and_o make_v a_o fire_n with_o dry_a wood_n and_o when_o the_o water_n boil_v well_o put_v in_o the_o sift_v polverine_n in_o just_a quantity_n and_o proportion_n to_o the_o water_n continue_v the_o fire_n and_o boil_a till_o a_o three_o part_n of_o the_o water_n be_v consume_v always_o mix_v they_o at_o the_o bottom_n with_o a_o scummer_v that_o the_o polverine_n may_v be_v incorporate_v with_o the_o water_n and_o all_o its_o salt_n extract_v then_o fill_v the_o copper_n with_o new_a water_n and_o boil_v it_o till_o half_n be_v consume_v and_o then_o you_o have_v a_o lee_n impregnate_v with_o salt_n but_o that_o you_o may_v have_v salt_n in_o great_a quantity_n and_o white_a put_v into_o the_o copper_n when_o they_o boil_v before_o the_o polverine_n be_v put_v in_o about_o 12_o pound_n to_o a_o copper_n of_o tartar_n of_o red_a wine_n calcine_v only_o to_o a_o black_a colour_n dissolve_v it_o well_o in_o the_o boil_a water_n mingle_v it_o with_o a_o scummer_v then_o put_v in_o the_o polverine_n this_o way_n of_o tartar_n be_v a_o secret_a and_o make_v more_o and_o white_a salt_n and_o a_o more_o beautiful_a crystal_n when_o two_o three_o of_o the_o water_n be_v evaporate_v and_o the_o lee_n well_o impregnate_v with_o salt_n slacken_v the_o fire_n under_o the_o copper_n and_o have_v in_o order_n many_o earthen_a pan_n at_o first_o fill_v with_o common_a water_n for_o six_o day_n that_o they_o may_v imbibe_n less_o lee_n and_o salt_n and_o then_o with_o great_a brass_n ladle_n take_v the_o lee_n out_o of_o the_o copper_n and_o put_v it_o into_o the_o say_a pan_n take_v out_o also_o the_o ash_n from_o the_o copper_n and_o put_v they_o all_o into_o the_o same_o pan_n and_o when_o they_o be_v full_a let_v they_o stand_v so_o ten_o day_n for_o in_o that_o time_n the_o ash_n will_v be_v all_o at_o the_o bottom_n and_o the_o lee_n remain_v very_o clear_a then_o with_o brass_n ladle_n take_v gentle_o that_o the_o bottom_n be_v not_o raise_v and_o trouble_v the_o clear_a lee_n and_o put_v it_o into_o other_o empty_a pan_n and_o so_o let_v the_o lee_n stand_v two_o day_n which_o by_o the_o settle_n of_o more_o terrestriety_n at_o the_o bottom_n become_v very_o clear_a and_o limpid_a let_v this_o be_v thrice_o repeat_v and_o you_o shall_v have_v the_o lee_n most_o limpid_a and_o discharge_v of_o all_o terrestriety_n wherewith_o a_o very_a fine_a and_o perfect_a salt_n be_v make_v let_v the_o copper_n be_v fill_v again_o and_o boil_v with_o the_o same_o quantity_n of_o tartar_n and_o then_o the_o polverine_n as_o before_o continue_v this_o work_n till_o you_o have_v material_n enough_o to_o strain_v the_o say_a lees_n and_o extract_v the_o salt_n first_o wash_v the_o copper_n well_o with_o clear_a water_n then_o fill_v they_o with_o the_o say_v refine_v and_o clarify_a lees_n and_o make_v they_o boil_v soft_o as_o before_o and_o observe_v that_o you_o fill_v the_o copper_n with_o the_o say_a lee_n
the_o furnace_n in_o ash_n or_o sand_n at_o a_o gentle_a fire_n and_o always_o evaporate_v a_o eight_o part_n of_o the_o say_a water_n then_o the_o furnace_n be_v cold_a empty_a this_o water_n full_o impregnate_v with_o salt_n into_o earthen_a pan_n glaze_v and_o when_o the_o water_n be_v settle_v 24_o hour_n filter_n it_o with_o diligence_n that_o the_o salt_n may_v be_v separate_v from_o the_o rest_n of_o the_o terrestriety_n and_o dregs_o let_v this_o lee_n be_v evaporate_v in_o glass_n body_n with_o a_o gentle_a fire_n and_o at_o last_o more_o gentle_a that_o the_o salt_n be_v not_o burn_v put_v this_o salt_n again_o into_o glass_n body_n to_o be_v dissolve_v in_o common_a water_n in_o every_o thing_n as_o before_o repeat_v this_o work_n till_o the_o salt_n yield_v no_o more_o terrestriety_n or_o dregs_o then_o shall_v you_o have_v a_o pure_a and_o perfect_a salt_n wherewith_o a_o fritt_v make_v with_o tarso_n as_o before_o will_v make_v a_o crystal_n which_o in_o fairness_n whiteness_n and_o cleverness_n will_v excel_v natural_a crystal_n a_o observation_n for_o gold_n yellow_a in_o crystal_n chap._n iu._n observe_v that_o when_o salt_n of_o tartar_n be_v mix_v with_o salt_n of_o polverine_n fritt_v make_v of_o the_o say_a salt_n be_v not_o good_a to_o make_v nor_o can_v make_v a_o gold_n yellow_a although_o it_o make_v all_o other_o colour_n but_o to_o make_v your_o gold_n yellow_a you_o must_v make_v fritt_v with_o salt_n take_v from_o polverine_n alone_o first_o purify_v as_o above_o for_o otherwise_o this_o yellow_a will_v not_o arise_v although_o this_o process_n be_v somewhat_o laborious_a and_o a_o small_a quantity_n of_o salt_n make_v therewith_o yet_o notwithstanding_o it_o will_v make_v a_o crystal_n worthy_a of_o all_o great_a prince_n be_v fit_a to_o make_v all_o sort_n of_o vessel_n and_o work_n this_o be_v my_o invention_n whereof_o i_o have_v many_o time_n make_v trial_n with_o happy_a success_n and_o my_o great_a content_n the_o way_n to_o make_v salt_n of_o fern_n which_o make_v a_o very_a fair_a crystal_n chap._n v._n in_o pisa_n i_o make_v experience_n of_o fern-ash_n which_o grow_v in_o great_a abundance_n in_o tuscany_n which_o herb_n must_v be_v cut_v from_o the_o earth_n when_o it_o be_v green_a from_o the_o end_n of_o may_n to_o the_o midst_n of_o june_n and_o in_o the_o moon_n increase_v when_o it_o be_v near_o its_o opposition_n with_o the_o sun_n for_o then_o the_o say_a herb_n be_v in_o its_o perfection_n and_o will_v then_o make_v more_o salt_n and_o of_o a_o better_a nature_n strength_n and_o whiteness_n than_o at_o other_o time_n for_o when_o it_o be_v suffer_v to_o dry_a of_o its_o self_n upon_o the_o ground_n it_o yield_v little_a salt_n and_o of_o little_a goodness_n this_o herb_n be_v thus_o cut_v and_o lay_v together_o soon_o wither_v then_o let_v it_o be_v well_o burn_v to_o ash_n with_o these_o ash_n and_o with_o the_o rule_n observation_n and_o diligence_n give_v before_o for_o the_o salt_n of_o the_o polverine_n of_o the_o levant_n be_v extract_v a_o pure_a and_o good_a salt_n wherewith_o i_o have_v make_v fritt_v with_o good_a and_o well_o serce_v tarso_n the_o which_o fritt_n melt_v well_o in_o the_o pot_n and_o yield_v a_o fair_a crystal_n and_o much_o better_a than_o the_o ordinary_a crystal_n because_o it_o have_v more_o strength_n and_o bend_v much_o better_o which_o the_o ordinary_a crystal_n do_v not_o it_o be_v draw_v into_o fine_a thread_n such_o as_o i_o cause_v to_o be_v draw_v and_o to_o this_o fritt_n may_v be_v give_v a_o wonderful_a yellow_a gold_n colour_n observe_v that_o there_o be_v in_o it_o no_o salt_n of_o tartar_n for_o neither_o from_o this_o will_v the_o gold_n yellow_a arise_v and_o the_o gold_n yellow_a which_o be_v give_v to_o this_o crystal_n be_v much_o fair_a and_o pleasant_a than_o can_v be_v wrought_v with_o the_o crystal_n make_v with_o the_o salt_n of_o the_o levant_n polverine_n and_o with_o that_o crystal_n can_v be_v make_v all_o sort_n of_o work_n as_o with_o the_o other_o the_o way_n to_o make_v another_o salt_n which_o will_v produce_v a_o marvellous_a and_o wonderful_a crystal_n chap._n vi_o let_v there_o be_v make_v ash_n after_o the_o manner_n aforesaid_a of_o the_o cod_n and_o stalkâ—_n of_o bean_n dry_v in_o the_o summer_n when_o you_o husbandman_n have_v thrash_v and_o separate_v the_o bean_n with_o which_o ash_n with_o the_o rule_n and_o pain_n abovesaid_a in_o the_o salt_n of_o polverine_n a_o marvellous_a salt_n be_v extract_v wherewith_o be_v make_v a_o very_a noble_a fritt_n with_o white_a and_o well_o serce_v tarso_n which_o in_o pot_n will_v make_v most_o beautiful_a crystal_n the_o same_o may_v be_v do_v with_o the_o ash_n of_o colewort_n bramble_n berry_n bush_n and_o also_o with_o stalk_n of_o millet_n rush_n and_o fen_n reed_n and_o many_o other_o herb_n which_o yield_v a_o salt_n wherewith_o make_v frit_n after_o you_o accustom_a manner_n will_v be_v make_v most_o beautiful_a crystal_n as_o every_o noble_a and_o curious_a spirit_n may_v try_v by_o experience_n for_o thereby_o more_o be_v learned_a than_o by_o long_a study_n a_o salt_n that_o will_v make_v a_o very_a fair_a crystal_n chap._n vii_o take_v the_o salt_n of_o lime_n which_o serve_v for_o building_n and_o this_o salt_n purify_v and_o mix_v with_o the_o ordinary_a salt_n of_o polverine_n of_o the_o levant_n about_o two_o pound_n to_o a_o 100_o that_o be_v two_o pound_n of_o salt_n of_o lime_n to_o a_o 100_o pound_n of_o the_o salt_n of_o polverine_n purify_v and_o well_o make_v as_o abovesaid_a with_o this_o salt_n so_o mix_v be_v usual_o make_v ordinary_a fritt_n and_o be_v put_v in_o the_o pot_n to_o clarify_v as_o shall_v be_v hereafter_o declare_v in_o the_o way_n of_o make_v of_o crystalline_a crystal_n and_o common_a glass_n and_o so_o thus_o make_v a_o very_a fair_a and_o beautiful_a crystal_n the_o way_n to_o make_v ordinary_a fritt_n to_o wit_n of_o polverine_n rochetta_n and_o barillia_fw-la of_o spain_n chap._n viii_o fritt_n be_v nothing_o else_o but_o a_o calcination_n of_o those_o material_n which_o make_v glass_n and_o although_o they_o may_v be_v melt_v and_o make_v glass_n without_o calcination_n yet_o this_o will_v succeed_v with_o length_n of_o time_n and_o weariness_n and_o therefore_o this_o calcination_n be_v invent_v to_o calcine_v the_o fritt_n in_o the_o calcar_fw-la which_o when_o it_o be_v calcine_v and_o the_o proportion_n of_o the_o material_n be_v adjust_v agreeable_a to_o the_o goodness_n of_o the_o barillia_fw-la present_o melt_v in_o the_o pot_n and_o wonderful_o clarify_v fritt_n make_v of_o polverine_n make_v ordinary_a white_a glass_n fritt_n from_o rochetta_n of_o the_o levant_n make_v the_o fair_a glass_n call_v crystal_n barillia_fw-la of_o spain_n though_o it_o be_v usual_o fat_a than_o the_o former_a yet_o it_o make_v not_o a_o glass_n so_o white_a and_o fair_a as_o that_o of_o the_o levant_n because_o it_o always_o incline_v a_o little_a to_o a_o azure_a colour_n to_o make_v then_o fritt_v serce_v the_o polverine_n through_o a_o fine_a serce_a the_o small_a piece_n which_o pass_v not_o let_v they_o be_v pound_v in_o stone_n mottar_n the_o like_a be_v to_o be_v do_v with_o the_o rochetta_n and_o barillia_fw-la to_o wit_v every_o one_o by_o its_o self_n and_o be_v sure_a that_o they_o be_v well_o pound_v and_o serce_v through_o a_o fine_a serce_a for_o as_o the_o common_a proverb_n in_o this_o art_n say_v a_o fine_a serce_a and_o dry_a wood_n bring_v honour_n to_o the_o furnace_n now_o whatsoever_o the_o quantity_n of_o the_o barillia_fw-la be_v for_o example_n a_o 100_o pound_n of_o it_o common_o require_v from_o 80_o pound_n to_o 90_o of_o tarso_n which_o must_v be_v fine_o beat_v and_o then_o fine_o serce_v more_o or_o less_o according_a to_o the_o goodness_n of_o the_o barillia_fw-la and_o its_o fatness_n whereof_o you_o need_v not_o make_v a_o essay_n how_o much_o it_o hold_v as_o be_v know_v by_o art_n then_o with_o sand_n and_o especial_o with_o that_o from_o tuscanie_n find_v in_o the_o vale_n of_o arnus_n be_v much_o fat_a and_o have_v in_o it_o more_o plenty_n of_o salt_n than_o tarso_n have_v there_o be_v never_o add_v more_o than_o 6_o or_o 8_o pound_n to_o the_o hundred_o now_o this_o sand_n must_v be_v wash_v from_o all_o it_o be_v unprofitable_a terrestriety_n and_o serce_v and_o then_o this_o will_v make_v a_o white_a and_o good_a glass_n for_o tarso_n always_o make_v much_o fair_a glass_n than_o any_o sand_n that_o be_v in_o tuscany_n the_o due_a quantity_n of_o sand_n or_o tarso_n be_v find_v out_o mix_v and_o unite_v they_o first_o well_o together_o with_o the_o barillia_fw-la or_o polverine_n well_o sift_v and_o so_o put_v they_o into_o the_o calcar_fw-la when_o it_o be_v hot_a &_o at_o first_o mix_v &_o spread_v
they_o well_o in_o the_o calcar_fw-la with_o a_o rake_n that_o they_o may_v be_v well_o calcine_v and_o continue_v this_o till_o they_o begin_v to_o grow_v into_o lump_n and_o come_v into_o piece_n as_o big_a as_o small_a nut_n the_o fritt_n will_v be_v well_o and_o perfect_o wrought_v in_o the_o space_n of_o 5_o hour_n be_v stir_v all_o that_o time_n and_o a_o sufficient_a fire_n continue_v and_o when_o you_o will_v see_v whether_o it_o be_v well_o make_v take_v a_o little_a of_o it_o out_o when_o cold_a if_o it_o be_v white_a yellowish_a and_o light_a then_o it_o be_v make_v the_o calcine_v of_o it_o more_o than_o 5_o hour_n be_v not_o amiss_o for_o by_o how_o much_o more_o it_o be_v wrought_v and_o calcine_v the_o better_a it_o be_v and_o the_o soon_o it_o melt_v in_o the_o pot_n and_o by_o stand_v a_o little_a long_o in_o the_o calcar_fw-la it_o consume_v and_o lose_v the_o yellowness_n and_o foulness_n which_o glass_n have_v in_o itself_o and_o it_o become_v more_o clear_a and_o purify_v when_o the_o fritt_n be_v take_v out_o of_o the_o calcar_fw-la thus_o hot_a let_v there_o be_v throw_v upon_o it_o 3_o or_o 4_o pail_n of_o cold_a water_n than_o set_v it_o under_o ground_n in_o a_o moist_a and_o cold_a place_n and_o the_o filth_n which_o arise_v when_o the_o salt_n be_v make_v as_o be_v above_o say_v be_v wont_a to_o be_v put_v into_o the_o same_o pan_n with_o the_o lee_n from_o polverine_n fill_v they_o with_o common_a water_n have_v tub_n under_o the_o pan_n to_o receive_v the_o water_n which_o by_o little_a and_o little_a drop_n through_o the_o say_a filth_n and_o settle_n and_o hence_o come_v a_o very_a strong_a pure_a and_o clear_a lee_n to_o be_v keep_v apart_o and_o herewith_o now_o and_o then_o water_v the_o fritt_n abovesaid_a which_o be_v heap_v together_o in_o a_o moist_a place_n the_o space_n of_o 2_o or_o 3_o month_n or_o more_o the_o long_a the_o better_o than_o the_o say_v fritt_n grow_v together_o in_o a_o mass_n as_o a_o stone_n and_o be_v to_o be_v break_v with_o mattock_n now_o when_o it_o be_v in_o the_o pot_n it_o soon_o melt_v stupendious_o and_o make_v glass_n as_o white_a as_o crystal_n for_o this_o lee_n leave_v upon_o the_o fritt_v its_o salt_n which_o work_v this_o effect_n when_o this_o lee_n be_v not_o to_o be_v have_v it_o must_v be_v water_v with_o common_a water_n which_o although_o it_o do_v not_o work_v this_o great_a effect_n as_o the_o say_a lee_n yet_o it_o do_v well_o and_o make_v it_o easy_o for_o melt_v wherefore_o fritt_n shall_v stand_v when_o make_v some_o month_n which_o thus_o make_v always_o cause_v less_o wood_n to_o be_v consume_v and_o the_o glass_n clear_a and_o sweet_a to_o work_v to_o make_v crystal_n in_o full_a perfection_n the_o way_n i_o always_o practice_n chap._n ix_o take_v crystal_n fritt_n diligent_o make_v set_v it_o in_o pot_n in_o the_o furnace_n where_o there_o be_v no_o pot_n with_o colour_n for_o the_o fume_n of_o metal_n whereof_o the_o great_a part_n of_o colour_n be_v make_v make_v the_o crystal_n pale_a and_o foul_a but_o that_o it_o may_v come_v forth_o white_a shine_a and_o fair_a when_o you_o put_v the_o fritt_n into_o the_o pot_n in_o the_o furnace_n then_o cast_v in_o such_o a_o quantity_n of_o manganese_n prepare_v as_o be_v needful_a according_a as_o the_o pot_n be_v great_a or_o less_o for_o this_o lie_v in_o the_o practice_n of_o the_o able_a and_o diligent_a conciatore_n and_o belong_v to_o his_o office_n the_o quantity_n of_o the_o manganese_n and_o of_o all_o other_o colour_n to_o be_v put_v into_o the_o fritt_n and_o metal_n can_v be_v precise_o determine_v either_o by_o weight_n or_o measure_n but_o must_v be_v whole_o leave_v to_o the_o eye_n and_o judgement_n trial_n and_o experience_n of_o the_o conciatore_n to_o make_v a_o fair_a crystal_n when_o it_o be_v well_o melt_v take_v it_o from_o the_o pot_n and_o cast_v it_o into_o great_a earthen_a pan_n or_o clean_a bowl_n full_a of_o clean_a water_n for_o it_o require_v to_o be_v cast_v into_o water_n to_o this_o end_n that_o the_o water_n may_v take_v from_o it_o a_o sort_n of_o salt_n call_v sandever_n which_o hurt_v the_o crystal_n and_o make_v it_o obscure_a and_o cloudy_a and_o whilst_o it_o be_v a_o work_n still_o cast_v forth_o sandever_n a_o thing_n very_o foul_a then_o put_v it_o again_o into_o a_o clean_a pot_n and_o cast_v it_o into_o water_n which_o be_v to_o be_v repeat_v as_o often_o as_o be_v needful_a until_o the_o crystal_n be_v separate_v from_o all_o this_o salt_n but_o this_o be_v to_o be_v leave_v to_o the_o practice_n of_o the_o conciator_n than_o set_v it_o to_o boil_v 4_o or_o 6_o day_n and_o let_v as_o little_a iron_n be_v mix_v therewith_o as_o be_v possible_a for_o it_o give_v it_o always_o a_o blackish_a tincture_n when_o it_o be_v boil_v and_o clear_a see_v whether_o it_o have_v enough_o manganese_n and_o if_o it_o be_v greenish_a give_v it_o manganese_n with_o discretion_n wherefore_o to_o make_v good_a crystal_n put_v in_o the_o manganese_n by_o little_a and_o little_a at_o a_o time_n for_o it_o make_v the_o crystal_n of_o a_o murry_n colour_n which_o afterward_o incline_v to_o black_a take_v from_o it_o its_o splendour_n mix_v the_o manganese_n and_o let_v the_o glass_n clarify_v till_o it_o become_v of_o a_o clear_a and_o shine_a colour_n the_o property_n of_o manganese_n be_v be_v put_v in_o just_a quantity_n to_o take_v away_o the_o foul_a greasine_n which_o crystal_n always_o have_v and_o to_o make_v a_o resplendent_a white_a when_o the_o crystal_n be_v clear_a limpid_a &_o fair_a work_v it_o continual_o into_o vessel_n and_o work_n that_o most_o please_v you_o but_o not_o with_o so_o great_a a_o fire_n as_o common_a glass_n be_v wrought_v with_o be_v careful_a that_o the_o iron_n wherewith_o you_o work_v be_v clean_o and_o that_o you_o put_v not_o the_o neck_n of_o the_o glass_n where_o the_o iron_n touch_v for_o there_o always_o remain_v iron_n into_o the_o pot_n of_o crystal_n for_o they_o make_v it_o become_v black_a but_o this_o glass_n where_o the_o iron_n rod_n touch_n may_v be_v put_v in_o to_o make_v glass_n for_o vulgar_a work_n to_o make_v crystall-glass_n and_o white_a call_v otherwise_o common_a glass_n chap._n x._o fritt_v of_o polverine_n make_v a_o white_a and_o fair_a common_a glass_n fritt_v of_o rochetta_n make_v the_o fair_a glass_n call_v crystal_n which_o be_v between_o ordinary_a glass_n and_o crystal_n as_o much_o manganese_n prepare_v must_v be_v use_v in_o common_a glass_n as_o be_v in_o crystalline_a cast_v the_o crystalline_a or_o common_a glass_n once_o at_o least_o into_o water_n that_o you_o may_v have_v they_o fair_a clear_a and_o in_o perfection_n although_o glass_n may_v be_v make_v without_o this_o cast_n into_o water_n yet_o to_o have_v it_o fair_a than_o ordinary_a this_o be_v necessary_a to_o be_v do_v and_o may_v be_v repeat_v according_a to_o your_o pleasure_n as_o you_o will_v have_v they_o more_o resplendent_a and_o fair_a and_o then_o you_o may_v work_v they_o into_o what_o vessel_n you_o need_v and_o to_o make_v they_o yet_o white_a calcine_v they_o that_o they_o purify_v well_o and_o have_v but_o few_o blister_n and_o above_o all_o observe_v that_o if_o to_o each_o of_o they_o by_o themselves_o you_o put_v upon_o the_o fritt_n the_o proportion_n of_o 12_o pound_n of_o salt_n of_o tartar_n purify_v to_o a_o 100_o weight_n of_o fritt_n it_o make_v they_o without_o comparison_n fair_a and_o more_o pliable_a to_o work_v than_o ordinary_a the_o salt_n of_o tartar_n must_v be_v put_v in_o when_o the_o fritt_n be_v make_v and_o then_o be_v mix_v with_o tarso_n or_o sand_n together_o with_o the_o polverine_n or_o rochetta_n sift_v and_o then_o make_v thereof_o fritt_v as_o before_o to_o make_v purify_v salt_n of_o tartar_n for_o the_o work_n abovesaid_a chap._n xi_o take_v tartar_n of_o red_a wine_n in_o great_a lump_n and_o not_o in_o powder_n calcine_v it_o in_o earthen_a pot_n between_o live_a coal_n till_o it_o become_v black_a and_o all_o its_o unctuosity_n be_v burn_v away_o and_o till_o it_o begin_v to_o grow_v white_a but_o let_v it_o not_o become_v white_a for_o then_o the_o salt_n will_v not_o be_v good_a put_v the_o say_a tartar_n thus_o calcine_v into_o great_a earthen_a pan_n full_a of_o common_a water_n heat_v as_o also_o into_o earthen_a pot_n glaze_v &_o make_v it_o boil_v with_o a_o gentle_a soft_a fire_n in_o such_o sort_n that_o a_o quarter_n of_o the_o water_n may_v be_v exhale_v in_o two_o hour_n then_o take_v they_o from_o the_o fire_n and_o suffer_v the_o water_n to_o cool_v and_o become_v clear_a which_o decant_v off_o and_o it_o will_v be_v a_o strong_a lee_n then_o put_v in_o more_o common_a
wet_v they_o with_o distil_a vinegar_n let_v they_o dry_a than_o put_v they_o in_o a_o retort_n which_o have_v a_o large_a body_n and_o a_o long_a neck_n give_v they_o a_o sublime_a fire_n in_o sand_n for_o 12_o hour_n then_o break_v the_o glass_n and_o take_v all_o that_o be_v sublime_v to_o the_o neck_n and_o body_n of_o the_o retort_n &_o mix_v it_o with_o the_o bottom_n &_o remain_a residence_n weigh_v they_o and_o add_v as_o much_o shall_fw-mi ammoniac_a as_o shall_v be_v want_v in_o this_o first_o sublimation_n grind_v they_o all_o together_o on_o a_o porphyry_n imbibe_v they_o with_o distil_a vinegar_n then_o sublime_a they_o in_o a_o retort_n as_o before_o and_o this_o sublimation_n be_v to_o be_v repeat_v after_o the_o same_o manner_n so_o long_o till_o the_o manganese_n remain_v all_o at_o the_o bottom_n fusible_a this_o be_v the_o medicine_n that_o colour_n crystal_n and_o past_a into_o a_o red_a diaphanous_a colour_n and_o into_o a_o ruby_n colour_n there_o be_v use_v of_o this_o medicine_n 20_o ounce_n to_o one_o of_o crystal_n or_o glass_n but_o more_o or_o less_o may_v be_v use_v thereof_o according_a as_o the_o colour_n require_v the_o manganese_n must_v be_v of_o the_o best_a from_o piedmont_n to_o colour_v glass_n of_o a_o fair_a and_o very_o sightly_o colour_n a_o red_a as_o red_a as_o blood_n chap._n cxxi_o put_v six_o pound_n of_o glass_n of_o lead_n common_a glass_n ten_o pound_n into_o a_o pot_n glaze_v with_o white_a glass_n when_o the_o glass_n be_v boil_v and_o refine_a give_v it_o copper_n calcine_v to_o redness_n according_a to_o discretion_n let_v they_o incorporate_v mix_v well_o the_o glass_n then_o give_v it_o so_o much_o tartar_n powder_v that_o the_o glass_n may_v become_v as_o red_a as_o blood_n if_o it_o be_v not_o so_o much_o colour_v add_v copper_n calcine_v to_o redness_n and_o tartar_n till_o it_o come_v to_o this_o colour_n the_o colour_n of_o a_o balass_n chap._n cxxii_o put_v crystal_n fritt_n in_o a_o pot_n into_o a_o furnace_n cast_v it_o thrice_o into_o water_n then_o thing_fw-mi it_o with_o manganese_n prepare_v into_o a_o clean_a purple_a then_o take_v alumen_fw-la catinum_fw-la fift_v fine_a put_v in_o thereof_o so_o much_o as_o will_v make_v the_o glass_n become_v purple_a and_o this_o you_o shall_v do_v eight_o time_n and_o know_v that_o alum_n make_v the_o glass_n grow_v yellow_a and_o a_o little_a reddish_n but_o not_o blakish_a and_o it_o always_o make_v the_o manganese_n fly_v away_o and_o the_o last_o time_n that_o you_o add_v manganese_n give_v not_o the_o glass_n more_o alum_n except_o the_o colour_n be_v too_o full_a and_o so_o you_o shall_v have_v a_o most_o fair_a ballast_n colour_n to_o extract_v the_o anima_fw-la saturni_n which_o serve_v for_o many_o thing_n in_o enamel_n and_o glass_n chap._n cxxiii_o put_v litharge_n well_o ground_n into_o a_o earthen_a pan_n well_o glaze_v pour_v upon_o it_o distil_a vinegar_n which_o must_v be_v high_a than_o it_o four_o finger_n let_v they_o stand_v till_o the_o vinegar_n be_v colour_v into_o a_o milky_a colour_n which_o it_o will_v sudden_o be_v decant_v off_o this_o colour_a vinegar_n and_o put_v new_a upon_o the_o litharge_n repeat_v this_o work_n till_o the_o vinegar_n become_v no_o more_o colour_v then_o let_v these_o colour_a vinegar_n stand_v in_o earthen_a pan_n glaze_v that_o the_o milky_a substance_n of_o the_o lead_n may_v sink_v to_o the_o bottom_n decant_v off_o the_o clear_a vinegar_n this_o milky_a material_a be_v the_o anima_fw-la saturni_n to_o wit_v the_o most_o noble_a part_n which_o serve_v for_o enamel_n and_o glass_n in_o many_o thing_n and_o if_o this_o white_a stuff_n precipitate_v not_o well_o cast_v upon_o it_o cold_a water_n which_o be_v wont_a to_o make_v it_o fall_v to_o the_o bottom_n and_o when_o it_o do_v not_o precipitate_v evaporate_v the_o vinegar_n and_o water_n and_o the_o more_o subtle_a part_n remain_v at_o the_o bottom_n good_a for_o many_o thing_n in_o this_o art_n a_o fair_a red_a to_o enamel_n gold_n chap._n cxxiv_o take_v crystal_n fritt_n make_v in_o this_o manner_n to_o wit_n salt_n of_o polverine_n ten_o pound_n white_a tarso_n fine_o ground_v eight_o pound_n make_v a_o solid_a past_a with_o this_o stuff_n and_o water_n and_o make_v thereof_o as_o it_o be_v small_a and_o thin_a wafer_n put_v these_o on_o earthen_a pan_n in_o a_o little_a furnace_n make_v in_o the_o fashion_n of_o a_o calcar_fw-la that_o they_o may_v be_v calcine_v with_o a_o good_a fire_n ten_o hour_n and_o in_o defect_n thereof_o put_v they_o in_o the_o furnace_n near_o the_o occhio_n for_o three_o or_o four_o day_n till_o they_o be_v well_o calcine_v take_v calcine_v lead_n and_o tin_n prepare_v as_o in_o chap._n 93._o tartar_n of_o white_a wine_n calcine_v of_o each_o two_o pound_n mix_v they_o well_o together_o and_o put_v they_o into_o a_o pot_n glaze_v with_o white_a glass_n let_v they_o melt_v and_o refine_v well_o then_o cast_v they_o into_o water_n do_v this_o twice_o then_o put_v they_o in_o the_o furnace_n and_o when_o well_o refine_v in_o the_o pot_n give_v they_o of_o copper_n calcine_v to_o redness_n ten_o ounce_n let_v the_o colour_n purify_v well_o then_o give_v it_o crocus_n martis_n make_v with_o aquafortis_n put_v it_o in_o by_o little_a and_o little_a as_o you_o do_v with_o manganese_n then_o let_v it_o settle_v six_o hour_n and_o see_v whether_o the_o colour_n be_v good_a if_o not_o give_v it_o crocus_n by_o little_a and_o little_a till_o you_o have_v the_o desire_a colour_n a_o fair_a red_a for_o gold_n after_o another_o manner_n chap._n cxxv_o take_v crystal_n fritt_n make_v as_o in_o chap._n 124._o four_o pound_n melt_v it_o in_o a_o clean_a pot_n glaze_v cast_v it_o when_o refine_v into_o water_n and_o refine_v it_o again_o in_o the_o furnace_n cast_v it_o into_o water_n a_o second_o time_n and_o refine_v it_o again_o then_o put_v in_o by_o little_a and_o little_a of_o calcine_v lead_n and_o tin_n purify_v half_o a_o ounce_n at_o a_o time_n let_v the_o calces_fw-la incorporate_a and_o when_o the_o glass_n become_v of_o a_o ash_n colour_n put_v in_o no_o more_o calces_fw-la for_o too_o much_o of_o they_o make_v the_o colour_n white_a and_o not_o good_a let_v the_o glass_n refine_v with_o the_o calces_fw-la then_o put_v into_o the_o glass_n fine_a red_a lead_n two_o ounce_n and_o when_o incorporate_v and_o refine_a well_o cast_v they_o into_o the_o water_n and_o set_v they_o in_o the_o furnace_n eight_o hour_n then_o take_v of_o the_o copper_n calcine_v to_o redness_n and_o of_o white_a crude_a tartar_n of_o each_o half_n a_o ounce_n put_v they_o and_o mix_v they_o well_o in_o the_o pot_n then_o add_v of_o lapis_n haematites_n wherewith_o the_o cutler_n burnish_v and_o of_o fix_a sulphur_n of_o each_o one_o drachm_n mix_v and_o incorporate_v these_o powder_n and_o see_v if_o the_o colour_n be_v too_o deep_a give_v it_o a_o little_a manganese_n which_o make_v it_o light_a and_o if_o it_o be_v too_o light_a a_o colour_n give_v it_o fix_v sulphur_n and_o lapis_fw-la haematites_n and_o a_o little_a of_o copper_n calcine_v to_o redness_n and_o a_o little_a tartar_n of_o white_a wine_n with_o discretion_n and_o do_v this_o till_o it_o come_v to_o the_o desire_a colour_n to_o fix_v sulphur_n for_o the_o work_n abovesaid_a chap._n cxxvi_o boil_v flower_n of_o brimstone_n in_o common_a oil_n a_o hour_n take_v they_o from_o the_o fire_n and_o cast_v upon_o they_o the_o strong_a vinegar_n and_o the_o sulphur_n will_v sudden_o sink_v to_o the_o bottom_n and_o the_o oil_n will_v swim_v upon_o the_o vinegar_n empty_a the_o oil_n and_o vinegar_n and_o put_v new_a oil_n upon_o the_o sulphur_n repeat_v this_o thrice_o and_o then_o you_o shall_v have_v a_o fix_a sulphur_n for_o the_o work_n abovesaid_a glass_n as_o red_a as_o blood_n which_o may_v serve_v for_o the_o abovesaid_a fair_a red._n chap._n cxxvii_o melt_v in_o a_o pot_n of_o glass_n of_o lead_n six_o pound_n crystal_n fritt_n ten_o pound_n cast_v they_o when_o refine_v into_o water_n put_v they_o again_o into_o the_o pot_n when_o they_o be_v well_o refine_v give_v this_o glass_n four_o or_o six_o ounce_n of_o copper_n calcine_v to_o redness_n let_v they_o boil_v and_o refine_v well_o then_o give_v they_o red_a tartar_n powder_v which_o incorporate_v with_o the_o glass_n let_v they_o refine_v and_o see_v if_o the_o colour_n please_v you_o and_o if_o it_o be_v not_o heighten_v with_o the_o copper_n and_o tartar_n put_v it_o again_o to_o anneal_a till_o it_o come_v to_o be_v sufficient_o red_a this_o be_v do_v to_o heighten_v the_o colour_n a_o approve_a way_n to_o make_v a_o fair_a red_a enamel_n for_o gold_n chap._n cxxviii_o take_v of_o crystal_n fritt_n boil_v it_o as_o in_o chap._n 124._o six_o pound_n refine_v it_o well_o in_o a_o
into_o earthen_a glaze_v pan_n in_o a_o cold_a and_o moist_a place_n for_o a_o night_n and_o you_o shall_v find_v the_o vitriol_n shoot_v into_o point_n like_o crystal_n which_o will_v appear_v like_o true_a oriental_a emerald_n decant_v oft_o all_o the_o water_n that_o be_v in_o the_o pan_n dry_v the_o vitriol_n and_o let_v it_o not_o stick_v to_o they_o then_o evaporate_v half_a this_o water_n which_o will_v yield_v you_o new_a vitriol_n as_o before_o repeat_v this_o till_o you_o have_v get_v all_o the_o vitriol_n put_v this_o vitriol_n in_o a_o retort_n well_o lute_v with_o a_o strong_a lute_n see_v you_o put_v no_o more_o than_o one_o pound_n of_o vitriol_n in_o a_o retort_n which_o must_v not_o be_v very_o large_a and_o have_v a_o large_a and_o capacious_a receiver_n make_v for_o 4_o hour_n together_o a_o most_o temperate_a fire_n for_o if_o it_o be_v too_o strong_a the_o moist_a and_o windy_a spirit_n which_o first_o arise_v from_o this_o vitriol_n be_v so_o powerful_a and_o arise_v with_o so_o great_a force_n that_o no_o receiver_n be_v able_a to_o hold_v they_o let_v the_o joint_n also_o be_v very_o well_o lute_v at_o last_o make_v a_o strong_a fire_n when_o the_o dry_a spirit_n begin_v to_o rise_v in_o a_o white_a form_n continue_v the_o fire_n till_o the_o receiver_n begin_v to_o wax_v clear_a and_o to_o be_v quite_o cold_a then_o make_v no_o more_o fire_n and_o in_o twenty_o four_o hour_n let_v the_o joint_n be_v unlute_v and_o the_o liquor_n which_o be_v in_o the_o receiver_n must_v be_v keep_v in_o glass_n very_o well_o seal_v this_o be_v the_o true_a lively_a azure_a with_o which_o marvellous_a thing_n be_v do_v as_o you_o may_v well_o perceive_v by_o its_o smell_n which_o be_v as_o powerful_a and_o sharp_a as_o any_o this_o day_n know_v in_o nature_n many_o thing_n may_v be_v say_v which_o be_v pass_v over_o as_o be_v not_o pertinent_a to_o the_o art_n of_o glass_n which_o happy_o you_o may_v judge_v upon_o better_a occasion_n the_o fece_n than_o which_o remain_v at_o the_o bottom_n of_o the_o retort_n will_v be_v black_a which_o leave_v some_o day_n in_o the_o air_n of_o themselves_o will_v take_v a_o pale_a blue_a powder_n and_o mix_v this_o with_o zaffer_n and_o put_v it_o to_o crystal_n metal_n as_o before_o and_o with_o the_o say_a quantity_n will_v be_v make_v a_o marvellous_a sea-green_a wherefore_o i_o have_v here_o set_v down_o the_o way_n to_o make_v this_o powder_n with_o much_o clearness_n presuppose_v that_o i_o have_v not_o publish_v a_o ordinary_a way_n to_o make_v it_o but_o a_o true_a treasure_n of_o nature_n and_o that_o to_o the_o content_a of_o noble_a and_o curious_a spirit_n finis_fw-la a_o index_n lead_v to_o calcine_v 62._o to_o prepare_v crystal_n 70_o 76._o manganese_n 13._o sulphur_n to_o fix_v 126_o 130._o vitriol_n to_o make_v aquafortis_n 39_o tartar_n to_o calcine_v 37._o to_o burn_v 41._o to_o extract_v the_o salt_n 11._o zaff_o to_o prepare_v 12._o to_o make_v aquafortis_n 38._o aqua_fw-la regis_fw-la 40._o crocus_n martis_n with_o sulphur_n 16._o with_o vinegar_n 17._o with_o aquafortis_n 18._o with_o aqua_fw-la regis_fw-la 19_o crystal_n and_o crystalline_a metal_n 9_o 10._o frit_n 3_o 8._o frit_n of_o crystal_n 59_o brass_n to_o calcine_v 20_o 21._o for_o ferretto_n of_o spain_n 14_o 15._o to_o redness_n 24._o thrice_o 25_o 28._o vitriolum_fw-la veneris_fw-la 31_o 131_o 132_o 133._o glass_n of_o lead_n 63._o saccharum_fw-la saturni_n 123._o salt_n from_o polverine_n rochetta_n and_o barillia_fw-la 1._o a_o better_a way_n 3._o from_o fern_n and_o other_o herb_n 5_o 6_o 7._o lake_n 108_o 109_o 110_o 118._o from_o cochineel_n 116_o 117_o 119_o sphere_n 113._o turcoise_n that_o have_v lose_v their_o colour_n 112._o ultramarine_n 115._o blow_v 111._o colour_n to_o make_v amethyst_n in_o glass_n 48._o balass_o in_o glass_n 122._o in_o crystal_n 74._o black_a in_o glass_n 51_o 52_o 53._o in_o enamel_n 100_o 101_o 102._o calcidony_n 42_o 43_o 44._o chrysolite_n in_o past_a 82._o emerald_n in_o glass_n 32_o 33._o in_o glass_n of_o lead_n 65_o 66._o in_o past_z 77_o 78_o 79_o 80._o green_a in_o glass_n 33_o 34_o 35._o in_o enamel_n 97_o 98_o 99_o girasole_n in_o past_o 74._o granat_n in_o glass_n 47._o in_o glass_n of_o lead_n 69._o in_o past_o 87_o 88_o 89._o lapis_fw-la lazuli_fw-la in_o glass_n of_o lead_n 72._o marble_n colour_n in_o glass_n 56._o opal_n in_o past_a 74._o peach_n in_o glass_n 57_o paste_n observation_n on_o they_o 90_o 91_o 92._o pearl_n colour_n in_o glass_n 60._o purple_a enamel_n 104._o red_a deep_a in_o glass_n 58._o as_o blood_n 121_o 127._o in_o enamel_n 103._o transparent_a in_o glass_n 120._o rose_n red_a in_o glass_n 120_o 124_o 125_o 128._o ruby_n in_o past_o 74._o sea-green_a in_o glass_n 22_o 23_o 26_o 29_o 30_o 31_o 131._o sapphire_n in_o glass_n 49_o 50._o in_o glass_n of_o lead_n 70._o in_o past_z 85_o 86._o sky_n colour_n in_o glass_n 23._o in_o glass_n of_o lead_n 68_o in_o past_z 83_o 84._o in_o enamel_n 106._o topaz_n in_o glass_n of_o lead_n 67._o in_o past_o 74_o 81._o turcois_fw-fr in_o glass_n 36._o in_o enamel_n 95_o 96._o viper_n colour_n in_o crystal_n 73._o violet_a enamel_n 107._o white_a enamel_n 94._o white_a call_v lattimo_fw-la in_o glass_n 54_o 55._o yellow_n in_o glass_n 46._o in_o enamel_n 105._o gold_n yellow_a in_o glass_n of_o lead_n 71._o observation_n of_o yellow_a in_o glass_n 4._o observation_n on_o the_o epistle_n to_o the_o reader_n concern_v our_o author_n and_o this_o work_n i_o find_v no_o other_o mention_n of_o he_o than_o a_o bare_a name_v he_o by_o garso_n in_o his_o book_n della_fw-it dottrina_fw-la universals_z and_o by_o borneâ—â—us_n de_fw-fr sufficientia_fw-la pag._n 141._o neither_o can_v i_o ever_o find_v by_o strict_a inquiry_n that_o the_o other_o piece_n promise_v in_o the_o epistle_n dedicatory_a and_o the_o preface_n concern_v chemical_a matter_n be_v ever_o publish_v neither_o have_v i_o read_v in_o any_o spagyrical_a writer_n quotation_n draw_v thence_o wherefore_o i_o may_v easy_o conclude_v that_o it_o never_o come_v to_o light_v and_o it_o be_v no_o wonder_n he_o find_v no_o encouragement_n by_o this_o book_n to_o put_v forth_o that_o since_o this_o kind_n of_o learning_n 〈◊〉_d useful_a to_o mankind_n be_v account_v sordid_a 〈◊〉_d below_o the_o speculation_n of_o man_n live_v in_o tâ—â—se_a time_n who_o whole_o busy_v their_o subtle_a â—its_n either_o in_o contemplation_n useless_a or_o indeterminable_a most_o of_o who_o notion_n be_v â—are_a 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d but_o our_o most_o learned_a â—acon_n man_n of_o a_o most_o sublime_a and_o pierce_a intellect_n in_o his_o incomparable_a novum_n organum_fw-la have_v full_o confute_v &_o show_v the_o vanity_n &_o in_o efficacy_n of_o that_o other_o way_n and_o have_v more_o wise_o substitute_v another_o more_o effective_a and_o operative_a for_o the_o more_o solid_a promotion_n of_o art_n and_o science_n this_o way_n of_o useful_a learning_n have_v be_v more_o experiment_o follow_v by_o some_o particular_a person_n but_o not_o universal_o throughout_o but_o now_o it_o be_v like_a to_o make_v a_o considerable_a progress_n be_v design_v by_o that_o most_o noble_a and_o honourable_a company_n of_o the_o king_n society_n at_o gresham-college_n which_o by_o the_o indulgence_n of_o his_o â—â—â—red_a majesty_n restore_v to_o his_o people_n for_o the_o promotion_n of_o all_o virtuous_a undertake_n weekly_a convenâ—_n to_o this_o very_a end_n and_o purpose_n and_o daily_o bring_v in_o material_n for_o this_o fair_a edisice_n one_o part_n of_o this_o design_n this_o present_a book_n contain_v wherein_o be_v set_v forth_o true_o and_o plain_o the_o whole_a business_n of_o make_v and_o colour_v glass_n which_o from_o his_o youth_n our_o author_n have_v learn_v of_o able_a and_o diligent_a person_n or_o what_o experience_n oâ—_n the_o fire_n have_v teach_v he_o and_o in_o many_o he_o tell_v you_o the_o time_n and_o place_n of_o his_o trial_n and_o invention_n with_o all_o the_o circumstance_n thereunto_o belong_v be_v of_o glass_n our_o english_a word_n glass_n be_v the_o same_o with_o the_o dutch_a and_o be_v derive_v from_o the_o latin_a glastum_fw-la which_o by_o remove_v the_o last_o syllable_n be_v plain_o glass_n now_o it_o appear_v that_o glastum_fw-la be_v call_v vitrum_fw-la by_o caesar_n in_o his_o commentary_n lib._n 5._o where_o he_o say_v omnes_fw-la britanni_n se_fw-la vitro_fw-la inficiunt_fw-la all_o the_o britan_n colour_n themselves_o with_o glass_n &_o mela_n lib._n 3._o cap._n 6._o britanni_n virro_fw-la corpora_fw-la infecti_fw-la and_o vitruvius_n wool_n die_v with_o glass_n for_o so_o the_o learned_a turnebus_n restore_v these_o place_n where_o it_o be_v ancient_o read_v ultrum_fw-la for_o vitrum_fw-la but_o that_o vitrum_fw-la be_v isatis_n appear_v by_o these_o word_n of_o vitruvius_n they_o colour_n for_o want_n of_o
in_o the_o compound_n a_o second_o general_a argument_n be_v this_o that_o though_o the_o say_v concrete_a juice_n stone_n and_o glass_n may_v have_v fusion_n in_o the_o fire_n yet_o neither_o all_o stone_n nor_o all_o concrete_a juice_n metal_n nor_o semimetall_n have_v fusion_n such_o be_v talc_n and_o english_a spaud_n shall_fw-mi ammoniac_a tincal_n etc._n etc._n reckon_v among_o concrete_a juice_n nor_o diamond_n cats-eye_n agate_n jasper_n nor_o must_v other_o precious_a stone_n nor_o marble_n nor_o many_o other_o stone_n wherewith_o the_o inside_n of_o those_o furnace_n be_v build_v neither_o can_v mercury_n among_o metal_n be_v say_v to_o melt_v nor_o among_o the_o middle_a mineral_n orpiment_n and_o though_o most_o of_o they_o have_v fusion_n yet_o none_o of_o they_o have_v ductilitie_n but_o metal_n only_o and_o they_o only_o too_o when_o they_o have_v receive_v a_o great_a degree_n of_o cold_a for_o when_o they_o be_v red_a hot_a the_o particle_n of_o they_o stick_v not_o together_o nor_o be_v so_o tenacious_a as_o glass_n be_v which_o only_o whilst_o it_o be_v red_a hot_a will_v with_o small_a force_n of_o the_o breath_n receive_v any_o fashion_n or_o figure_n and_o by_o blow_v form_n a_o cavity_n none_o whereof_o any_o of_o the_o aforesaid_a body_n will_v do_v beside_o metal_n pour_v out_o when_o melt_v will_v run_v into_o many_o small_a globuli_fw-la or_o piece_n but_o glass_n stick_v together_o in_o a_o lump_n even_o in_o the_o furnace_n itself_o when_o the_o pot_n be_v break_v and_o this_o quality_n of_o ductility_n and_o tenacity_n i_o make_v to_o be_v the_o essential_a difference_n of_o glass_n from_o all_o other_o body_n nay_o from_o all_o other_o substance_n which_o have_v get_v the_o name_n of_o glass_n as_o vitrum_fw-la antimonii_n moscovie_n glass_n and_o brick_n or_o other_o stone_n vitrify_v neither_o whereof_o will_v bear_v this_o trial_n which_o rather_o have_v their_o denomination_n from_o their_o transparency_n as_o vitriolum_fw-la too_o have_v a_o vitro_n than_o from_o their_o intrinsical_a nature_n and_o property_n but_o to_o shorten_v this_o comparison_n i_o shall_v here_o set_v down_o the_o propriety_n of_o glass_n whereby_o any_o one_o may_v easy_o difference_n it_o from_o all_o other_o body_n 1_o it_o be_v a_o concrete_a of_o salt_n and_o sand_n or_o stone_n 2_o it_o be_v artificial_a 3_o it_o melt_v in_o a_o strong_a fire_n 3_o when_o melt_v it_o be_v tenacious_a and_o stick_v together_o 4_o it_o waste_v not_o nor_o consume_v in_o the_o fire_n 5_o it_o be_v the_o last_o effect_n of_o the_o fire_n 6_o when_o melt_v it_o cleave_v to_o iron_n etc._n etc._n 7_o it_o be_v ductile_a whilst_o red_a hot_a and_o fashionable_a into_o any_o form_n but_o not_o malleable_a and_o may_v be_v blow_v into_o a_o hallowness_n 8_o break_v be_v thin_a without_o anneal_v 9_o it_o be_v friable_a when_o cold_a which_o make_v our_o proverb_n as_o brittle_a as_o glass_n 10_o it_o be_v diaphanous_a either_o hot_a or_o cold_a 11_o it_o be_v flexible_a and_o have_v in_o thread_n motum_fw-la rectitutionis_fw-la 12_o cold_a and_o wet_a disunite_v and_o break_v it_o especial_o if_o the_o liquor_n be_v saltish_a and_o the_o glass_n sudden_o heat_v 13_o it_o only_o receive_v sculpture_n and_o cut_v from_o a_o diamond_n or_o emery_n stone_n 14_o it_o be_v both_o colour_a and_o make_v diaphanous_a as_o precious_a stone_n 15_o aqua_fw-la fortis_fw-la aqua_fw-la regis_fw-la and_o mercury_n dissolve_v it_o not_o as_o they_o do_v metal_n 15_o acid_n juice_v nor_o any_o other_o thing_n extract_v either_o colour_n taste_n or_o any_o other_o quality_n from_o it_o 16_o it_o receive_v polish_n 17_o it_o lose_v nor_o weight_n nor_o substance_n with_o the_o long_a and_o most_o frequent_a use_n 18_o give_v fusion_n to_o other_o metal_n and_o soften_v they_o 19_o receive_v all_o variety_n of_o colour_n make_v of_o metal_n both_o external_o and_o internal_o and_o therefore_o more_o fit_a for_o paint_v than_o any_o other_o thing_n 20_o it_o be_v the_o most_o pliable_a and_o fashionable_a thing_n in_o the_o world_n and_o best_a retain_v the_o form_n give_v 21_o it_o may_v be_v melt_v but_o it_o will_v never_o be_v calcine_v 22_o a_o open_a glass_n fill_v with_o water_n in_o the_o summer_n will_v gather_v drop_n of_o water_n on_o the_o outside_n so_o far_o as_o the_o water_n reach_v and_o a_o man_n breath_n blow_v upon_o will_n manifest_o moisten_v it_o 23_o little_a ball_n as_o big_a as_o a_o nut_n fill_v with_o mercury_n or_o water_n or_o any_o liquor_n and_o throw_v into_o the_o fire_n as_o also_o drop_n of_o green_a glass_n break_v fly_v asunder_o with_o a_o very_a loud_a &_o most_o sharp_a noise_n 24_o wine_n beer_n nor_o other_o liquor_n will_v make_v they_o musty_a nor_o change_v their_o colour_n nor_o rust_v they_o 25_o it_o may_v be_v cement_v as_o stone_n and_o metal_n 26._o a_o drink_a glass_n fill_v in_o part_n with_o water_n be_v rub_v on_o the_o brim_n with_o the_o singer_n witted_a yield_v musical_a note_n high_a or_o low_o according_a as_o it_o be_v more_o or_o less_o full_a and_o make_v the_o liquor_n frisk_v and_o leap_v antiquity_n of_o glass_n concern_v the_o antiquity_n of_o glass_n our_o author_n here_o fetch_v it_o from_o job_n chap._n 28._o v._n 17._o who_o in_o this_o chapter_n from_o v._o 15._o to_o the_o 20_o compare_v wisdom_n to_o the_o choice_a thing_n and_o in_o this_o 17_o v._o say_v gold_n and_o glass_n shall_v not_o be_v equal_v to_o it_o so_o our_o author_n from_o the_o vulgar_a latin_a translation_n the_o septuagint_n hierom_n senes_fw-la elias_n in_o no_o menclatore_n hieron_n pineda_n biblia_fw-la tigurina_n &_o syriac_n but_o lacinth_n in_o the_o arabic_a translation_n crystal_n chaldee_n santes_n arias_n montanus_n forsterus_n the_o hebrew_n who_o nicetas_n follow_v and_o the_o king_n of_o spain_n edition_n and_o so_o the_o english_a translation_n a_o stone_n more_o precious_a than_o gold_n as_o pagninus_n from_o rabbi_n levi_n kimhi_n a_o look_a glâ—ss_n as_o the_o thargum_n render_v it_o perhaps_o because_o in_o that_o time_n or_o age_n looking-glass_n be_v first_o invent_v and_o high_o value_v be_v make_v of_o precious_a material_n and_o so_o muneer_n read_v it_o glass_n of_o crystal_n vitrum_fw-la crystallinum_fw-la complutâ—nsis_fw-la a_o peril_n as_o vatablus_n a_o diamond_n rabbi_n abraham_n rabbi_n mardoâ—ai_n pagnin_n cajetan_n the_o italian_a spanish_a french_a high_z and_z low_z dutch._n a_o pyropus_fw-la or_o carbuncle_n or_o some_o such_o neat_a and_o precious_a gemm_n as_o other_o so_o pineda_n but_o both_o those_o be_v the_o same_o name_n of_o one_o stone_n which_o the_o ancient_n give_v to_o such_o a_o gemm_n as_o will_v shine_v by_o night_n but_o there_o be_v none_o such_o in_o nature_n &_o the_o late_a writer_n take_v the_o ruby_n for_o it_o the_o reason_n of_o this_o difference_n in_o the_o translator_n be_v because_o the_o original_a word_n zeâ—huâ—hih_n come_v from_o the_o root_n zacac_n which_o signify_v to_o purify_v to_o cleanse_v to_o shine_v to_o be_v white_a and_o transparent_a the_o same_o word_n be_v apply_v to_o frankincense_n exod._n 30._o 34._o and_o render_v by_o the_o septuagint_n pellucid_n hence_o it_o be_v manifest_a why_o so_o many_o rendring_n of_o the_o text_n since_o the_o word_n in_o general_n signify_v only_a what_o be_v transparent_a and_o beautiful_a therefore_o the_o translator_n may_v apply_v the_o word_n to_o any_o thing_n which_o be_v of_o price_n and_o value_n for_o so_o the_o text_n require_v and_o transparent_a too_o for_o so_o the_o word_n require_v but_o it_o seem_v to_o be_v neither_o diamond_n carbuncle_n nor_o jacinth_n for_o those_o be_v mention_v in_o aaron_n breastplate_n exod._n 28._o and_o this_o word_n here_o not_o to_o be_v find_v in_o that_o chapter_n nor_o glass_n nor_o crystal_n because_o it_o will_v seem_v incongruous_a that_o those_o of_o so_o mean_v a_o value_n shall_v be_v bring_v into_o comparison_n the_o former_a be_v make_v of_o material_n very_o common_a and_o the_o latter_a can_v not-but_a be_v vulgar_a beside_o it_o be_v probable_a this_o word_n subjoin_v to_o gold_n be_v add_v after_o it_o for_o amplification_n add_v hereunto_o that_o glass_n be_v not_o where_o mention_v in_o the_o old_a testament_n though_o frequent_o in_o the_o new_a by_o s._n paul_n s._n james_n and_o in_o the_o revelation_n and_o indeed_o who_o can_v imagine_v that_o a_o thing_n fit_a for_o so_o many_o illustration_n and_o comparison_n and_o of_o so_o common_a use_n can_v be_v pass_v by_o in_o silence_n if_o know_v by_o the_o scripture_n so_o full_a of_o elegancy_n in_o this_o kind_n and_o therefore_o i_o judge_v it_o meet_v to_o keep_v the_o general_a word_n and_o not_o to_o confine_v the_o sense_n to_o one_o precious_a and_o transparent_a stone_n or_o thing_n but_o to_o extend_v it_o wide_o to_o all_o thing_n that_o have_v those_o two_o property_n
relate_v by_o pliny_n now_o as_o to_o the_o possibility_n of_o make_v glass_n malleable_a i_o find_v not_o one_o argument_n beside_o this_o report_n unless_o by_o the_o chemist_n who_o prove_v it_o per_fw-la circulum_fw-la reason_v from_o their_o elixir_n to_o glass_n and_o from_o glass_n to_o the_o elixir_n and_o sure_o it_o be_v more_o feasible_a to_o make_v the_o one_o than_o the_o other_o for_o in_o the_o make_n of_o the_o elixir_n the_o production_n be_v tale_n ens_fw-la ex_fw-la non_fw-la tali_fw-la ente_fw-la there_o be_v no_o resistance_n and_o incapacity_n in_o the_o matter_n ex_fw-la qua_fw-la but_o in_o glass_n quite_o otherwise_o for_o it_o be_v of_o its_o own_o nature_n the_o most_o brittle_a thing_n in_o the_o world_n and_o to_o make_v it_o malleable_a a_o quality_n quite_o contrary_a to_o its_o nature_n must_v be_v introduce_v beside_o diaphaneity_n be_v a_o property_n not_o communicate_v to_o any_o thing_n malleable_a and_o who_o will_v call_v that_o glass_n that_o be_v not_o transparent_a as_o well_o may_v one_o name_n that_o gold_n which_o be_v not_o ponderous_a nor_o malleable_a as_o that_o glass_n which_o be_v malleable_a and_o not_o transparent_a add_v hereunto_o that_o the_o nature_n of_o malleability_n consist_v in_o a_o close_a and_o throughout_o adhaesion_n of_o part_n to_o part_n and_o a_o capacity_n to_o the_o change_n of_o figure_n in_o the_o minute_a part_n both_o which_o be_v inconsistent_a with_o the_o nature_n of_o glass_n for_o the_o material_o of_o glass_n sand_n and_o salt_n have_v such_o figure_n as_o seem_v incapable_a of_o such_o adhaesion_n in_o every_o part_n one_o to_o another_o for_o all_o salt_n have_v their_o determinate_a figure_n which_o they_o keep_v too_o in_o their_o great_a solution_n and_o action_n of_o the_o fire_n upon_o they_o unless_o a_o total_a destruction_n be_v wrought_v upon_o they_o as_o many_o instance_n may_v evince_v and_o that_o figure_n be_v various_a according_a to_o the_o salt_n salt-peter_n and_o all_o alcalizate-salt_n be_v point_v and_o by_o their_o pungency_n and_o caustickness_n seem_v to_o be_v make_v up_o of_o infinite_a sharp_a point_a needle_n and_o as_o for_o sand_n the_o figure_n thereof_o be_v various_a nay_o infinite_a as_o it_o appear_v in_o microscope_n now_o how_o can_v any_o man_n imagine_v that_o such_o variety_n of_o figure_n in_o sand_n can_v so_o comply_v with_o the_o determinate_a figure_n of_o salt_n as_o to_o touch_v one_o another_o in_o minimis_fw-la which_o be_v necessary_a to_o make_v it_o malleable_a whereas_o to_o make_v it_o glass_n it_o be_v enough_o that_o those_o two_o touch_v one_o another_o at_o certain_a point_n only_o whereby_o such_o a_o union_n be_v form_v which_o be_v necessary_a to_o denominate_v glass_n but_o whole_o incompatible_a with_o malleability_n and_o this_o union_n be_v that_o which_o make_v in_o glass_n pore_n from_o whence_o come_v its_o diaphaneity_n as_o you_o have_v hear_v from_o lucret._n beside_o something_o say_v before_o declare_v that_o they_o both_o remain_v the_o same_o in_o the_o compound_n they_o be_v before_o i_o shall_v conclude_v this_o argument_n and_o say_v that_o i_o conceive_v that_o nothing_o but_o the_o elixir_n will_v perform_v this_o effect_n and_o that_o both_o of_o they_o will_v come_v into_o the_o world_n together_o of_o the_o furnace_n before_o we_o enter_v upon_o the_o art_n it_o be_v self_n it_o be_v necessary_a to_o deliver_v the_o manner_n of_o their_o furnace_n and_o their_o several_a instrument_n and_o also_o how_o their_o metal_n when_o â—efined_v must_v be_v wrought_v all_o which_o be_v pretermit_v by_o our_o author_n though_o necessary_a to_o be_v know_v by_o the_o reader_n there_o be_v three_o sort_n of_o furnace_n as_o agric._n de_fw-fr re_fw-mi metallica_fw-la distinguish_v they_o the_o first_o the_o calcar_fw-la fornax_fw-la calcaria_fw-la be_v make_v in_o the_o fashion_n of_o a_o oven_n ten_o foot_n long_o and_o seven_o broad_a where_o wide_a and_o two_o foot_n deep_a on_o one_o side_n thereof_o they_o have_v a_o trench_n about_o six_o inch_n square_a the_o upper_a part_n whereof_o be_v level_a with_o the_o surface_n of_o the_o calcar_fw-la separate_v only_o from_o it_o at_o the_o mouth_n by_o brick_n some_o nine_o inch_n wide_a into_o this_o trench_n they_o put_v their_o sea-coal_n the_o flame_n whereof_o pass_v into_o all_o the_o part_n of_o this_o furnace_n and_o reverberate_v from_o the_o roof_n upon_o the_o frit_n over_o who_o surface_n all_o the_o smoke_n fly_v very_o black_a and_o go_v out_o of_o the_o mouth_n of_o the_o calcar_fw-la and_o the_o conciator_n never_o stir_v his_o frit_n till_o the_o smoke_n be_v past_a the_o coal_n burn_v as_o in_o other_o furnace_n on_o iron_n grate_v and_o the_o ash_n fall_v thence_o into_o the_o ashole_a which_o be_v level_a with_o the_o floor_n the_o conciator_n call_v in_o the_o green-glass_n house_n the_o founder_n be_v he_o that_o weigh_v and_o proportion_n the_o salt_n or_o ash_n and_o sand_n and_o work_v they_o with_o a_o strong_a fire_n till_o they_o run_v into_o lump_n and_o become_v white_a and_o if_o the_o metal_n be_v too_o hard_a and_o consequent_o brittle_a he_o add_v salt_n or_o ash_n and_o if_o too_o soft_a sand_n still_o mix_v they_o to_o a_o fit_a temper_n which_o be_v only_o know_v by_o the_o work_n of_o it_o according_a as_o the_o frit_n be_v prepare_v he_o draw_v it_o out_o of_o the_o calcar_fw-la and_o when_o it_o be_v cold_a lay_v it_o by_o for_o use_v he_o do_v not_o here_o cast_v water_n upon_o the_o frit_n nor_o water_n it_o with_o lee_n as_o our_o author_n enjoun_v and_o after_o some_o few_o day_n use_v this_o frit_n to_o make_v metal_n which_o when_o it_o be_v melt_v in_o the_o pot_n in_o the_o work_a furnace_n with_o a_o square_n he_o rake_n and_o stir_n and_o mix_v well_o the_o metal_n when_o the_o square_a be_v red_a hot_a he_o put_v it_o into_o a_o pail_n of_o water_n for_o otherwise_o the_o metal_n will_v stick_v to_o it_o with_o a_o ladle_n he_o take_v out_o the_o sandever_n or_o empty_v the_o metal_n from_o one_o pot_n into_o another_o and_o with_o his_o porteglo_n he_o scum_n the_o glass_n and_o with_o the_o spiei_fw-la a_o iron_n point_v and_o hook_a at_o the_o end_n he_o take_v metal_n out_o of_o the_o pot_n for_o proof_n or_o essay_n to_o see_v whether_o the_o colour_n be_v good_a and_o the_o metal_n fit_a to_o work_v some_o anneal_a their_o pot_n in_o this_o furnace_n as_o agric._n the_o second_o or_o work_a furnace_n be_v that_o where_o the_o pot_n be_v set_v to_o which_o belong_v the_o fire_n place_n and_o ash-hole_n this_o furnace_n be_v round_o of_o three_o yard_n diameter_n and_o two_o in_o height_n arch_v above_o round_o about_o the_o inside_n whereof_o 8_o or_o more_o pot_n be_v set_v and_o on_o these_o the_o pile_v pot_n the_o number_n of_o the_o pot_n be_v always_o double_a to_o the_o work_a boccas_n that_o each_o master_n may_v have_v one_o pot_n refine_v and_o to_o work_v out_o of_o and_o another_o for_o metal_n to_o refine_v in_o while_o he_o work_v out_o the_o pot_n which_o have_v refine_v in_o it_o it_o have_v two_o partition_n the_o lowermost_a separate_v the_o pot_n from_o the_o fire_n place_n in_o the_o centre_n whereof_o there_o be_v a_o circular_a hole_n make_v with_o iron_n grate_v fourteen_o inch_n or_o more_o in_o diameter_n through_o which_o the_o flame_n pass_v from_o the_o fire-place_n into_o this_o furnace_n from_o who_o arch_a side_n and_o roof_n it_o be_v reverberate_v into_o the_o melt_a pot_n the_o second_o partition_n divide_v this_o from_o the_o leer_n to_o this_o furnace_n belong_v these_o hole_n first_o bocca_fw-it the_o work_a hole_n by_o which_o the_o metal_n be_v take_v out_o of_o the_o great_a pot_n and_o by_o which_o the_o pot_n be_v put_v into_o the_o furnace_n this_o be_v stop_v with_o a_o cover_n make_v with_o lute_n and_o brick_n removable_a at_o pleasure_n to_o preserve_v the_o workmen_n eye_n from_o the_o vehement_a heat_n of_o the_o fire_n this_o have_v a_o hole_n in_o it_o more_o than_o a_o palm_n wide_a by_o which_o the_o vessel_n be_v scald_v as_o often_o as_o it_o be_v needful_a to_o this_o bocca_fw-it belong_v the_o halsinella_n which_v be_v certain_a hook_n fasten_v to_o the_o side_n of_o the_o furnace_n whereon_o to_o rest_v and_o turn_v their_o vessel_n when_o they_o scald_v they_o 2._o boccarellas_n one_o on_o each_o side_n of_o the_o bocca_fw-it lie_v almost_o horizontal_o with_o it_o out_o of_o these_o the_o servitor_n take_v colour_v or_o fine_a metal_n from_o the_o pile_v pot_n 3._o oven_n or_o hole_n next_o the_o leer_n to_o calcine_v tartar_n iron_n etc._n etc._n one_o on_o each_o side_n lie_v level_a with_o the_o bocca_fw-it to_o this_o also_o belong_v the_o fire_n place_n have_v two_o tizzonaios_n or_o stitch_n one_o on_o each_o side_n of_o the_o furnace_n by_o
this_o make_v ordinary_a white_a or_o crystalline_a metal_n three_o frit_n for_o green-glass_n make_v of_o common_a ash_n without_o any_o preparation_n of_o they_o or_o else_o of_o cobbet_n ground_n to_o a_o fine_a powder_n and_o a_o hard_a sand_n fetch_v from_o woollwich_a in_o kent_n the_o material_n must_v be_v fine_o powder_v wash_v and_o serce_v and_o then_o mix_v and_o equal_o compound_v together_o and_o then_o the_o fire_n of_o the_o calcar_fw-la will_n exact_o mix_v they_o in_o the_o small_a particle_n and_o minute_a atom_n for_o otherwise_o the_o sand_n and_o salt_n will_v in_o the_o melt_a pot_n easy_o separate_v the_o one_o from_o the_o other_o which_o they_o be_v apt_a enough_o to_o do_v be_v they_o not_o often_o stir_v with_o the_o rake_n pound_v in_o stone_n mortar_n this_o follow_a way_n now_o in_o use_n be_v much_o more_o expedite_a they_o now_o grind_v their_o ash_n which_o be_v in_o hard_a lump_n their_o manganese_n zaffer_n collet_n calcine_v clay_n and_o salt_n in_o a_o horse-mill_n the_o stone_n whereof_o be_v 9_o or_o 10_o inch_n thick_a and_o 7_o or_o 8_o foot_n diameter_n and_o turn_v on_o a_o floor_n where_o the_o material_n to_o be_v ground_n be_v put_v and_o be_v both_o of_o hard_a marble_n this_o grind_n dispatch_v more_o in_o one_o day_n than_o 20_o man_n can_v do_v in_o a_o mortar_n we_o use_v no_o taste_n of_o water_n on_o the_o frit_n nor_o wet_v it_o with_o lees_n but_o work_v it_o off_o in_o the_o pot_n within_o few_o day_n if_o need_n require_v it_o though_o the_o latter_a of_o these_o two_o must_v needs_o conduce_v much_o to_o the_o purity_n of_o glass_n chap._n 9_o the_o quantity_n of_o the_o manganese_n etc._n etc._n the_o reason_n whereof_o be_v because_o the_o colour_n to_o be_v put_v in_o be_v of_o various_a goodness_n some_o high_a and_o other_o light_a especial_o the_o difference_n of_o manganese_n and_o zaffer_n be_v so_o great_a that_o some_o thereof_o be_v good_a for_o little_a other_o very_a rich_a some_o of_o a_o middle_a nature_n and_o to_o know_v their_o difference_n in_o goodness_n thereâ—s_v no_o way_n find_v out_o but_o trial_n in_o the_o furnace_n neither_o in_o our_o glass_n house_n nor_o in_o pottery_n where_o they_o have_v very_o great_a use_n of_o both_o beside_o the_o metal_n of_o the_o same_o material_n and_o of_o the_o same_o preparation_n change_v the_o quantity_n of_o the_o colour_n in_o several_a pot_n wherefore_o the_o conciator_n always_o put_v in_o all_o his_o colour_n not_o by_o weight_n nor_o measure_n but_o by_o little_a and_o little_a at_o a_o time_n and_o then_o at_o each_o time_n mix_v they_o well_o with_o the_o metal_n and_o take_v out_o a_o proof_n and_o by_o his_o eye_n alone_o judge_v whether_o the_o colour_n be_v high_a enough_o and_o when_o too_o low_o add_v more_o of_o they_o till_o he_o attain_v the_o desire_a colour_n the_o furnace_n must_v have_v dry_a etc._n etc._n strong_a wood_n our_o author_n every_o where_o commend_v oak_n for_o that_o make_v a_o strong_a and_o durable_a fire_n with_o a_o good_a flame_n ferant_fw-la imper._n l._n 14._o c._n 16._o say_v that_o the_o glass-man_n in_o working-glass_n because_o they_o will_v have_v a_o substantial_a and_o gallant_a rather_o than_o a_o great_a flame_n use_v the_o trunk_n of_o ash_n which_o ascend_v direct_o and_o straight_o come_v to_o the_o vortex_n of_o the_o furnace_n and_o communicate_v it_o s_o force_n to_o the_o pot_n within_o assh_o indeed_o afford_v a_o most_o pleasant_a fire_n but_o soon_o decay_v and_o therefore_o unless_o a_o continual_a supply_n be_v make_v the_o metal_n will_v not_o be_v keep_v melt_v nor_o fit_a to_o work_v camer_n in_o horto_fw-la deserve_o commend_v juniper_n as_o a_o most_o last_a and_o strong_a and_o sweet_a fire_n can_v plenty_n thereof_o be_v have_v i_o know_v not_o therefore_o what_o pliny_n mean_v who_o l._n 36._o c._n 24._o say_v levibus_fw-la vitrum_fw-la aridisque_fw-la lignis_fw-la coquitur_fw-la glass_n be_v boil_v with_o light_n and_o dry_a wood_n nor_o why_o plutarch_n shall_v say_v that_o tamarisk_n be_v fit_a to_o form_v glass_n for_o certain_o so_o great_a a_o fire_n as_o glass_n require_v can_v be_v make_v with_o such_o wood_n one_o effect_n of_o the_o fire_n mention_v by_o the_o arabian_a physician_n and_o from_o they_o by_o other_o i_o may_v not_o omit_v viz._n the_o burn_a of_o glass_n mix_v with_o sponge_n which_o be_v calcine_v they_o commend_v to_o break_v the_o stone_n in_o the_o kydneys_n and_o bladder_n and_o for_o outward_n ulcer_n but_o the_o way_n to_o burn_v it_o teach_v by_o they_o be_v whole_o unfit_a and_o it_o be_v most_o certain_a that_o the_o long_a and_o strong_a fire_n will_v only_o keep_v it_o in_o fusion_n but_o never_o reduce_v it_o to_o a_o powder_n cast_v forth_o sandever_n shall_fw-mi alkali_n call_v by_o the_o french_a suin_n the_o verre_n that_o be_v the_o fat_a of_o glass_n and_o by_o contraction_n in_o english_a sandever_n it_o be_v a_o very_a white_a salt_n and_o incline_v near_o to_o a_o nitrous_a taste_n and_o easy_o dissolve_v in_o the_o air_n or_o any_o moist_a place_n our_o conciator_n never_o cast_v the_o metal_n into_o water_n to_o separate_v this_o salt_n from_o it_o but_o take_v it_o out_o with_o a_o ladle_n for_o it_o swim_v on_o the_o top_n of_o the_o metal_n this_o must_v be_v separate_v and_o all_o scum_v off_o or_o else_o it_o will_v make_v the_o glass_n unfit_a for_o work_v very_o brittle_a and_o no_o way_n pliable_a the_o best_a metal_n will_v yield_v in_o a_o pot_n of_o two_o hundred_o weight_n a_o quarter_n or_o half_a a_o hundred_o of_o sandever_n the_o weak_a the_o salt_n or_o ash_n be_v the_o great_a quantity_n of_o sandever_n they_o yield_v some_o four_o or_o five_o part_n more_o than_o other_o do_v for_o green_a glass_n when_o the_o ash_n be_v bad_a they_o be_v compel_v to_o fill_v the_o pot_n four_o or_o five_o time_n with_o more_o fresh_a ash_n by_o reason_n of_o the_o quantity_n of_o sandever_n that_o be_v in_o they_o before_o the_o pot_n will_v be_v fill_v with_o metal_n while_o any_o of_o it_o remain_v in_o the_o pot_n they_o may_v not_o cast_v in_o any_o cold_a water_n to_o hinder_v the_o boil_a over_o of_o the_o metal_n for_o if_o they_o shall_v the_o furnace_n and_o pot_n will_v be_v blow_v up_o together_o sandever_n serve_v to_o make_v metal_n run_v and_o a_o little_a thereof_o put_v into_o antimony_n and_o saltpetre_n for_o make_v crocus_n metallorum_fw-la increase_v the_o quantity_n of_o the_o crocus_n and_o it_o will_v therewith_o separate_v better_o from_o the_o scoria_fw-la it_o be_v sell_v into_o france_n and_o there_o use_v to_o powder_v their_o meat_n and_o to_o eat_v instead_o of_o common_a salt_n a_o solution_n hereof_o bestow_v on_o garden-walks_a destroy_v both_o weed_n and_o vermin_n neck_n of_o the_o glass_n be_v also_o call_v collet_n which_o they_o always_o break_v off_o their_o iron_n rod_n whereunto_o they_o stick_v before_o they_o take_v new_a metal_n out_o of_o the_o pot_n and_o these_o they_o throw_v into_o a_o place_n ordain_v for_o that_o purpose_n which_o they_o grind_v and_o put_v to_o the_o metal_n and_o make_v thereof_o the_o pure_a green_a glass_n only_o though_o the_o product_n of_o the_o fine_a virgin_n metal_n chap._n 10._o calcine_v it_o well_o the_o glass_n must_v continue_v twenty_o four_o hour_n or_o more_o nay_o two_o or_o three_o day_n in_o a_o strong_a fire_n the_o long_o the_o better_o for_o this_o refine_v the_o glass_n and_o take_v away_o all_o blebs_fw-la and_o blister_n from_o it_o chap._n 11._o tartar_n in_o great_a lump_n because_o this_o come_v from_o the_o strong_a wine_n and_o have_v suffer_v no_o damage_n by_o salâ—_n water_n or_o any_o other_o which_o dissolve_v it_o into_o sâ—all_a piece_n and_o draw_v from_o it_o some_o of_o its_o strength_n they_o calciâ—e_v it_o in_o a_o place_n make_v for_o the_o purpose_n â—eer_v the_o leer_n of_o the_o furnace_n on_o either_o side_n of_o the_o utmost_a work_a hole_n in_o six_o hour_n time_n and_o that_o to_o whiteness_n too_o which_o work_v all_o the_o effect_n in_o glass_n with_o we_o better_a than_o a_o low_a calcination_n do_v chap._n 12._o zaff_o and_o manganese_n have_v no_o other_o preparation_n here_o than_o bare_a 〈◊〉_d they_o in_o the_o mill_n to_o a_o fine_a powder_n and_o serce_v they_o in_o the_o same_o serce_n wherewith_o they_o serce_v their_o polverine_n and_o other_o material_n what_o zaffer_n be_v i_o can_v find_v in_o any_o author_n few_o there_o be_v that_o mention_n it_o caâ—dâ—n_n l._n 5._o the_o subtle_a call_v it_o a_o earth_n est_fw-la alia_fw-la criâ—m_fw-la tâ—rra_fw-la quae_fw-la sic_fw-la vitrum_fw-la tingit_fw-la caerulâ—i_fw-la coloris_fw-la quam_fw-la zapheram_n quidâ—m_fw-la appellant_n thereâ—s_v another_o earth_n which_o colour_n glass_n blow_v some_o call_v it_o zaffer_n
some_o few_o year_n since_o the_o industry_n of_o our_o nation_n have_v find_v in_o our_o own_o country_n at_o mendip-hill_n famous_a for_o lead_n in_o somersetshire_n as_o good_a as_o any_o use_v at_o moran_n wherever_o the_o lead-ore-man_n find_v it_o they_o certain_o conclude_v that_o lead-ore_n lie_v under_o it_o they_o call_v it_o pottern-ore_n because_o the_o potter_n spend_v such_o great_a quantity_n of_o it_o this_o be_v the_o only_a material_a wherewith_o they_o colour_v their_o ware_n black_a as_o they_o do_v blue_a with_o zaffer_n they_o count_v that_o the_o best_a which_o have_v no_o glitter_a sparkle_n in_o it_o and_o be_v of_o a_o blackish_a colour_n but_o powder_v of_o a_o dark_a lead_n colour_n it_o be_v very_o hard_a ponderous_a the_o deep_a the_o colour_n the_o deep_a it_o colour_v the_o metal_n in_o the_o furnace_n it_o be_v to_o be_v put_v into_o the_o melt_a pot_n together_o with_o the_o fritt_n chap._n ferretto_n of_o spain_n common_o call_v 14_o 15._o aes_fw-la ustum_fw-la or_o burn_v brass_n and_o it_o be_v make_v latin_n by_o coesalp_n l._n 3._o c._n 5._o where_o he_o thus_o say_v optimum_fw-la aes_fw-la ustum_fw-la conficiebatur_fw-la in_o aegypti_n memphide_v deinde_fw-la in_o cypro_n cujus_fw-la notae_fw-la sunt_fw-la ut_fw-la sit_fw-la rubrum_fw-la &_o attritu_fw-la colorem_fw-la cinnabaris_fw-la imitetur_fw-la nam_fw-la nigrnm_fw-la plusquam_fw-la decet_fw-la exustum_fw-la est_fw-la hodie_fw-la in_o hispania_n conficitur_fw-la appellant_n autem_fw-la ferrettum_fw-la sed_fw-la nigrum_fw-la est_fw-la inficit_fw-la ingredine_fw-la ideò_fw-la utuntur_fw-la ad_fw-la capillum_fw-la denigrandum_fw-la the_o best_a burn_a brass_n be_v make_v at_o memphis_n in_o egypt_n afterward_o in_o cyprus_n the_o mark_n whereof_o be_v that_o it_o be_v red_a and_o that_o by_o bruise_v it_o imitate_v the_o colour_n of_o cinnaber_n for_o that_o which_o be_v black_a be_v too_o much_o burn_v it_o be_v now_o make_v in_o spain_n they_o call_v it_o ferrettum_fw-la but_o it_o be_v black_a and_o colour_n black_a therefore_o they_o use_v to_o colour_v therewith_o their_o hair_n black_n but_o if_o it_o be_v calcine_v to_o a_o mediocrity_n it_o appear_v red_a &_o it_o be_v of_o the_o same_o colour_n when_o powder_a and_o hence_o it_o seem_v to_o have_v its_o name_n ferrettum_fw-la à _fw-la ferreo_fw-la colore_fw-la for_o crocus_n martis_n appear_v to_o the_o eye_n red_a though_o much_o light_a than_o ferretto_n do_v by_o the_o former_a discours-of_a caesalp_n that_o some_o country_n afford_v better_a ferretto_n than_o other_o as_o castille_n soap_n and_o venice_n glass_n be_v the_o best_a but_o we_o find_v no_o such_o difference_n in_o the_o several_a climate_n that_o we_o need_v fetch_v any_o thereof_o from_o spain_n the_o two_o most_o eminent_a and_o singular_a colour_n both_o in_o themselves_o and_o in_o relation_n to_o animal_n and_o to_o this_o art_n of_o glass_n be_v blue_a and_o green_a in_o themselves_o as_o partake_v much_o of_o light_n as_o be_v see_v in_o the_o triangular-glass_n and_o they_o be_v also_o most_o delightful_a and_o agreeable_a to_o the_o sight_n and_o eye_n of_o animal_n as_o neither_o widen_v nor_o contract_v the_o pupil_n too_o much_o both_o which_o be_v dolorous_a and_o offensive_a and_o in_o the_o art_n of_o glass_n in_o past_z enamel_n glass_n of_o lead_n by_o reason_n of_o their_o great_a conformity_n and_o nearness_n to_o many_o sort_n of_o gem_n challenge_v a_o great_a share_n of_o use_n beside_o the_o many_o gradation_n of_o they_o use_v simple_o of_o themselves_o or_o else_o blend_v and_o mix_v one_o with_o the_o other_o blue_n be_v a_o simple_a colour_n in_o all_o art_n conversant_a about_o it_o but_o green_a in_o the_o curious_a art_n of_o die_v be_v a_o compound_a colour_n of_o blue_n the_o ground_n and_o yellow_a super-induced_n or_o contrariwise_a wrought_v but_o in_o other_o art_n this_o colour_n be_v simple_a and_o both_o arise_v from_o the_o same_o material_a copper_n or_o brass_n by_o 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the_o make_n of_o verdigreas_n turn_v it_o to_o a_o green_a be_v exalt_v by_o the_o acidity_n of_o the_o grape_n and_o this_o seem_v also_o to_o be_v the_o cause_n why_o frenchwine-grape_n which_o have_v more_o acidity_n in_o they_o than_o spanish-wine-grape_n have_v though_o the_o climate_n of_o spain_n be_v more_o suitable_a than_o that_o of_o france_n be_v fit_a to_o work_v this_o effect_n the_o force_n also_o of_o vitriolate_a juice_n may_v be_v see_v in_o our_o english_a copperas_n and_o vitriol_n of_o mars_n make_v of_o spirit_n of_o vitriol_n and_o steel_n both_o which_o change_v the_o natural_a yellowish_a colour_n of_o iron_n into_o a_o green_a and_o lapis_fw-la armenus_n a_o blue_a stone_n ground_n with_o vinegar_n or_o the_o tincture_n thereof_o draw_v the_o effect_n of_o calaminaris_n in_o drink_v in_o the_o acidity_n of_o the_o vitriol_n do_v the_o same_o a_o ingredient_n into_o aquafortis_n be_v clear_o manifest_v by_o a_o pretty_a and_o lucid_a experiment_n be_v once_o show_v i_o by_o my_o neighbour_n a_o refiner_n who_o buy_v some_o copper-plate_n to_o draw_v down_o his_o silver_n from_o aquafortis_n wherein_o it_o be_v dissoluèd_v but_o these_o copper-plate_n will_v not_o whole_o praecipitate_v the_o say_a silver_n but_o leave_v ten_o pound_n thereof_o in_o thirty_o remain_v unpraecipitate_v in_o the_o water_n the_o reason_n whereof_o be_v find_v to_o be_v because_o the_o copper_n for_o those_o plate_n have_v be_v melt_v in_o a_o pot_n wherein_o brass_n before_o have_v suffer_v fusion_n the_o coppersmith_n hereupon_o remelted_a the_o say_a plate_n in_o new_a pot_n and_o with_o a_o strong_a fire_n burn_v off_o as_o they_o usual_o do_v the_o flour_n of_o the_o lapis_fw-la calaminaris_n which_o be_v volatile_a and_o fly_v about_o the_o workhouse_n colour_v the_o clothes_n hair_n and_o beard_n of_o the_o workman_n as_o white_a as_o those_o of_o meal-man_n or_o miller_n now_o when_o these_o flour_n have_v be_v well_o separate_v and_o the_o 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with_o coral_n crabs-eye_n as_o they_o be_v false_o