this_o kind_n that_o come_v to_o my_o knowledge_n i_o shall_v add_v only_o by_o and_o by_o the_o product_n of_o a_o more_o recent_a trial_n 2._o as_o far_o as_o i_o have_v hitherto_o observe_v those_o ferruginous_a water_n that_o be_v not_o heavy_a than_o common_a water_n and_o in_o most_o drinker_n prove_v but_o diuretic_n afford_v but_o very_o little_a caput_n mortuum_n or_o dry_a substance_n upon_o the_o total_a evaporation_n of_o the_o liquor_n whereas_o mineral_n water_n that_o be_v purge_v and_o manifest_o more_o ponderous_a in_o specie_fw-la then_o common_a water_n leave_v upon_o evaporation_n a_o considerable_a quantity_n of_o residence_n tho'_o some_o far_o less_o than_o other_o 3._o at_o once_o to_o explain_v and_o partly_o prove_v what_o i_o have_v be_v say_v i_o shall_v here_o recite_v that_o from_o a_o pound_n of_o barnet_n water_n which_o be_v know_v to_o be_v purgative_a slow_o evaporate_v we_o obtain_v a_o dram_n of_o white_a powder_n but_o from_o the_o like_a quantity_n of_o tunbridge_n water_n we_o obtain_v but_o about_o one_o grain_n of_o caput_n mortuum_n and_o if_o i_o misremember_v not_o we_o have_v but_o about_o a_o grain_n and_o a_o half_a from_o 25._o ounce_n of_o the_o german_a spa_n water_n 4._o it_o may_v seem_v scarce_o credible_a to_o many_o that_o so_o small_a a_o quantity_n of_o matter_n of_o which_o perhaps_o not_o one_o half_a be_v saline_n or_o metalline_a the_o rest_n be_v teresstrial_a shall_v impart_v a_o manifest_a virtue_n to_o so_o great_a a_o proportion_n of_o water_n but_o this_o difficulty_n do_v not_o much_o trouble_v i_o who_o have_v purposely_o make_v divers_a experiment_n to_o discover_v how_o small_a a_o proportion_n of_o mineral_n matter_n may_v suffice_v when_o dissolve_v to_o impregnate_n common_a water_n i_o remember_v i_o take_v one_o grain_n of_o iron_n stone_n casual_o find_v near_o the_o spring_n at_o islington_n from_o which_o mineral_n it_o be_v probable_a those_o water_n derive_v their_o virtue_n this_o be_v open_v by_o the_o fire_n and_o dissolve_v as_o far_o as_o it_o will_v be_v in_o a_o little_a spirit_n of_o salt_n we_o let_v fall_v a_o drop_n or_o two_o of_o the_o yellowish_a solution_n into_o a_o great_a proportion_n of_o infusion_n of_o gall_n to_o which_o it_o present_o give_v a_o deep_a colour_n than_o tunbridge_n water_n or_o even_o the_o german_a spa_n water_n be_v wont_a to_o give_v here_o at_o london_n with_o the_o powder_n of_o gall_n so_o that_o we_o guess_v that_o if_o we_o have_v then_o have_v at_o hand_n a_o competent_a quantity_n of_o the_o infusion_n the_o remain_a part_n of_o the_o martial_a solution_n will_v have_v be_v able_a to_o colour_v ten_o time_n a_o great_a quantity_n of_o the_o infusion_n than_o our_o trial_n be_v make_v upon_o this_o will_v be_v easy_o believe_v by_o he_o that_o shall_v consider_v a_o experiment_n we_o afterward_o make_v to_o the_o same_o purpose_n which_o be_v this_o we_o dissolve_v a_o half_a grain_n of_o a_o good_a marcasite_n take_v up_o not_o far_o from_o london_n in_o a_o small_a quantity_n of_o spirit_n of_o niter_n which_o for_o a_o certain_a reason_n i_o make_v choice_n of_o tho'_o other_o acid_n menstruum_n as_o aquafortis_n and_o spirit_n of_o salt_n will_v have_v dissolve_v the_o mineral_n this_o small_a solution_n we_o put_v into_o a_o pound_n of_o pretty_a high_a tincture_n of_o gall_n make_v by_o infuse_v they_o in_o common_a water_n and_o find_v as_o we_o expect_v that_o this_o mixture_n grow_v very_o dark_a we_o fill_v a_o vial_n with_o it_o and_o empty_v that_o vial_n into_o a_o large_a glass_n we_o fill_v the_o same_o vial_n three_o time_n with_o common_a water_n to_o dilute_v it_o notwithstanding_o which_o this_o new_a mixture_n be_v put_v into_o one_o of_o our_o usual_a glass_n appear_v of_o a_o colour_n much_o deep_a than_o that_o which_o the_o water_n of_o tunbridge_n or_o the_o german_a spa_n have_v former_o give_v with_o the_o powder_n of_o gall_n so_o that_o probable_o if_o another_o vial_n of_o common_a water_n have_v be_v add_v it_o will_v yet_o have_v afford_v a_o purple_a colour_n if_o not_o a_o deep_a so_o that_o one_o part_n of_o dissolve_v marcasite_n communicate_v a_o tincture_n to_o 61440_o sixty_o one_o thousand_o four_o hundred_o and_o forty_o part_n of_o infusion_n of_o gall_n and_o that_o which_o make_v this_o experiment_n more_o considerable_a be_v that_o this_o small_a quantity_n of_o marcasite_n be_v not_o itself_o all_o martial_a or_o metalline_a for_o from_o our_o english_a marcasite_n as_o well_o as_o other_o i_o have_v obtain_v a_o pretty_a quantity_n of_o sulphur_n like_o common_a sulphur_n beside_o that_o they_o afford_v a_o not_o despicable_a quantity_n of_o terrestrial_a substance_n about_o who_o nature_n i_o have_v not_o yet_o satisfy_v myself_o 5._o i_o shall_v now_o add_v this_o reflection_n that_o since_o the_o marcasite_n impregnate_v so_o much_o water_n with_o its_o corporeal_a part_n if_o i_o may_v so_o call_v they_o obtain_v by_o bare_a dissolution_n it_o seem_v high_o probable_a that_o the_o same_o quantity_n of_o liquor_n may_v be_v impregnate_v by_o a_o far_o less_o quantity_n of_o mineral_n matter_n attenuate_v into_o a_o kind_n of_o spirituous_a slate_n by_o be_v raise_v in_o the_o form_n of_o fume_n or_o exhalation_n and_o that_o imperfect_a or_o embryonated_a iron_n may_v be_v so_o will_v scarce_o be_v deny_v by_o they_o that_o consider_v the_o way_n that_o i_o have_v in_o another_o paper_n deliver_v to_o make_v iron_n manifest_o emit_v copious_a fume_n without_o the_o help_n of_o external_a fire_n and_o if_o it_o be_v with_o some_o such_o spirituous_a and_o volatile_a exhalation_n that_o a_o mineral_n water_n as_o that_o of_o tunbridge_n or_o of_o islington_n be_v impregnate_v it_o be_v not_o hard_a to_o conceive_v that_o they_o may_v easy_o lose_v their_o chief_a virtue_n by_o the_o avolation_n of_o most_o or_o many_o of_o their_o fugitive_a part_n upon_o their_o be_v remove_v to_o a_o distance_n from_o the_o spring_n head_n and_o to_o make_v it_o probable_a that_o vitriolate_a corpuscle_n may_v be_v make_v to_o ascend_v without_o lose_v their_o nature_n i_o shall_v here_o mention_v a_o experiment_n that_o i_o devise_v to_o give_v some_o light_n in_o this_o matter_n i_o have_v often_o find_v by_o trial_n that_o a_o spirit_n rich_o impregnate_v with_o volatilise_v sulphur_n will_v with_o vitriol_n whether_o in_o the_o form_n of_o a_o powder_n or_o a_o solution_n produce_v in_o a_o trice_n a_o very_a dark_a or_o blackish_a colour_n and_o guess_v that_o in_o mercury_n turn_v by_o the_o addition_n of_o salt_n and_o vitriol_n into_o corrosive_a sublimate_n many_o of_o the_o vitriolate_a corpuscle_n may_v ascend_v with_o the_o mercurial_a one_o i_o take_v such_o a_o volatile_a sulphureous_a tincture_n as_o i_o have_v be_v mention_v which_o for_o this_o purpose_n ought_v to_o be_v deep_a and_o have_v drop_v it_o upon_o good_a sublimate_n i_o find_v it_o turn_v present_o of_o a_o very_a opacous_a colour_n to_o show_v also_o that_o to_o make_v a_o great_a dilatation_n or_o dispersion_n of_o the_o martial_a corpuscle_n of_o a_o ore_n or_o mineral_n there_o need_v no_o spirit_n of_o salt_n or_o the_o like_a distil_a menstruum_fw-la i_o procure_v from_o a_o copperas-work_n or_o place_n where_o vitriol_n be_v make_v by_o art_n some_o of_o the_o liquor_n they_o employ_v before_o they_o cast_v in_o iron_n that_o be_v corrode_v by_o it_o it_o may_v increase_v the_o weight_n and_o give_v solidity_n and_o some_o other_o quality_n to_o the_o design_a vitriol_n now_o thó_n this_o liquor_n be_v make_v without_o any_o chemical_a menstruum_fw-la bare_o by_o rain_n or_o snow-water_n that_o impregnate_v itself_o with_o saline_n or_o metalline_a particle_n in_o its_o passage_n through_o bed_n of_o marcasite_n that_o lie_v expose_v to_o the_o sun_n and_o air_n yet_o in_o this_o water_n such_o number_n of_o martial_a corpuscle_n be_v disperse_v that_o have_v shake_v four_o drop_n of_o it_o into_o 12_o ounce_n and_o a_o half_a of_o common_a water_n this_o liquor_n as_o i_o expect_v be_v thereby_o so_o impregnate_v that_o with_o powder_n of_o gall_n it_o present_o produce_v as_o deep_a a_o colour_n as_o good_a tunbridge_n water_n will_v have_v do_v so_o that_o suppose_v a_o drop_n of_o this_o liquor_n to_o weigh_v about_o a_o grain_n as_o by_o some_o trial_n purposely_o make_v we_o find_v it_o to_o do_v it_o appear_v that_o one_o part_n of_o the_o vitriolate_a water_n be_v able_a manifest_o to_o impregnate_n 1500_o part_n of_o common_a water_n and_o yet_o of_o these_o 4_o drop_n or_o grain_n of_o vitriolate_a liquor_n a_o considerable_a part_n may_v very_o probable_o be_v conclude_v from_o the_o way_n of_o its_o production_n to_o have_v be_v rain_n water_n as_o will_v easy_o be_v grant_v when_o i_o shall_v have_v add_v that_o to_o examine_v this_o supposition_n or_o
powder_n must_v be_v stale_a 34_o 35_o 16._o the_o best_a way_n for_o produce_v of_o new_a colour_n with_o mineral_n water_n be_v to_o make_v the_o infusion_n of_o gall_n with_o a_o certain_a weight_n of_o the_o powder_n in_o a_o determinate_a weight_n of_o water_n 35_o 36_o 17._o oaken_a leaf_n dry_v red_a rose_n leave_v the_o juice_n the_o peel_n of_o pomegranate_n the_o blossom_n call_v common_o callaustia_n and_o some_o other_o astringent_a vegetable_n may_v be_v substitute_v to_o gall_n 38_o 18._o the_o eye_n must_v be_v judge_n of_o the_o impregnation_n of_o the_o water_n by_o the_o infusion_n or_o powder_n of_o gall_n 37_o 19_o the_o way_n of_o try_v mineral_n water_n by_o the_o change_n of_o colour_n that_o gall_n produce_v in_o they_o be_v neither_o of_o that_o extent_n nor_o of_o that_o certainty_n it_o be_v vulgar_o presume_v to_o be_v of_o 39_o 20._o there_o be_v divers_a metalline_a oar_n and_o other_o mineral_n body_n which_o not_o particpate_v of_o iron_n will_v not_o be_v discoverable_a by_o the_o infusion_n of_o gall_n ib._n 21._o a_o body_n of_o a_o metalline_a nature_n and_o not_o participate_v of_o iron_n may_v with_o infusion_n of_o gall_n afford_v a_o very_a dark_a colour_n 40_o 22._o it_o be_v not_o certain_a if_o all_o the_o liquor_n impregnate_v with_o iron_n will_v be_v discover_v to_o be_v so_o by_o the_o colour_n they_o afford_v with_o gall_n ib._n 23._o that_o it_o be_v a_o mistake_n general_o take_v for_o grant_v viz._n that_o the_o infusion_n of_o gall_n will_v certain_o discover_v by_o become_v black_a or_o purple_a of_o a_o mineral_n water_n that_o be_v mix_v with_o it_o be_v to_o vitriolate_v 41_o 24._o a_o odd_a kind_n of_o whitish_a earth_n to_o be_v find_v in_o the_o northern_a country_n of_o england_n where_o there_o come_v divers_a mineral_n water_n 42_o 25._o gall_n be_v cast_v into_o the_o solution_n of_o several_a metal_n produce_v no_o blackish_a colour_n except_o with_o the_o solution_n of_o gold_n 44_o 26._o a_o sulphureous_a liquor_n proclaim_v notable_a change_n of_o colour_n with_o several_a solution_n of_o metal_n ib._n 27._o it_o be_v fit_a if_o not_o necessary_a that_o the_o experimenter_n look_v upon_o the_o change_n of_o colour_n make_v by_o gall_n both_o while'tis_o a_o produce_v and_o where'tis_o produce_v in_o a_o good_a light_n and_o with_o a_o heedful_a eye_n 46_o 28._o that_o there_o may_v be_v a_o kind_n of_o physiognogmy_n of_o natural_a body_n as_o well_o as_o of_o humane_a face_n ib._n 29._o a_o way_n to_o vary_v the_o shade_n and_o other_o phoenomena_fw-la of_o colour_n produce_v with_o mineral_n liquor_n 47_o 30._o another_o way_n somewhat_o differ_v from_o the_o former_a 48_o 31._o it_o be_v convenient_a to_o use_v beside_o gall_n or_o oaken-leaf_n for_o the_o produce_v of_o new_a colour_n with_o mineral_n water_n red-rose_n balerustium_n leolewood_n brasil_n and_o other_o astringent_a pigment_n 50_o 32._o a_o way_n of_o make_v a_o liquor_n which_o will_v turn_v black_a with_o a_o solution_n either_o of_o martial_a or_o capreous_a vitriol_n 51._o 33._o many_o water_n may_v partake_v of_o sulphur_n without_o be_v take_v notice_n of_o to_o do_v so_o 54_o 34._o that_o copper_n that_o have_v be_v melt_v into_o a_o body_n may_v be_v so_o subtilise_v and_o disguise_v as_o to_o have_v a_o multitude_n of_o its_o metalline_a part_n make_v ascend_v with_o other_o in_o the_o form_n of_o a_o transparent_a liquor_n like_o common_a water_n and_o yet_o by_o put_v to_o it_o another_o substance_n as_o volatile_a and_o colourless_a as_o itself_o it_o will_v present_o discover_v the_o copper_n it_o contain_v by_o turn_v as_o blue_a as_o saphire_n 55_o 35._o experiment_n discover_v the_o inexistence_n of_o arsenic_n in_o water_n and_o somewhat_o of_o the_o nature_n of_o that_o dangerous_a mineral_n 56_o 36._o the_o deleterious_a nature_n of_o arsenic_n consist_v not_o only_o or_o main_o in_o a_o transcendent_o acid_n nor_o in_o a_o lixiviate_v causticle_n quality_n but_o in_o a_o corrosiveness_n svi_fw-la generis_fw-la ib._n 37._o a_o useful_a way_n for_o water-drinker_n of_o examine_v a_o mineral_n water_n suspect_v to_o contain_v arsenic_n 60_o 38._o why_o the_o author_n have_v insist_v so_o much_o upon_o the_o thirteen_o article_n of_o the_o set_v of_o title_n 61_o 39_o to_o what_o the_o knowledge_n of_o the_o degree_n of_o coldness_n in_o the_o water_n especial_o if_o it_o be_v extraordinary_a may_v be_v useful_a 63_o 40._o divers_a way_n of_o estimate_v the_o degree_n of_o coldness_n and_o heat_n in_o the_o water_n 64_o 41._o the_o usefulness_n of_o the_o knowledge_n of_o the_o specific_a gravity_n of_o a_o mineral_n water_n ib._n 42._o the_o difficulty_n of_o weigh_v exact_o liquor_n 67_o 43._o the_o most_o exact_a way_n of_o measure_v the_o weight_n of_o water_n 68_o 44._o the_o determinate_a weight_n of_o most_o mineral_n water_n and_o other_o about_o london_n as_o likewise_o of_o the_o german_a spaw-water_n 69_o 45._o how_o to_o discover_v the_o kind_n of_o soil_n through_o which_o the_o water_n have_v pass_v 71_o 46._o no_o difference_n observe_v between_o mineral_n water_n and_o common_a water_n look_v upon_o through_o good_a microscope_n 72_o 47._o that_o the_o little_a creature_n we_o discover_v through_o magnify_v glass_n in_o water_n wherein_o pepper_n have_v be_v infuse_v be_v not_o inanimate_a concretion_n but_o real_o live_v creature_n 73_o 48._o where_o the_o scent_n of_o several_a mineral_n water_n be_v best_a judge_v of_o 74_o 49._o that_o there_o be_v some_o spring_n of_o â—â—l_a viny_a odour_n ib._n 50._o that_o man_n be_v apt_a to_o take_v all_o stink_a water_n for_o sulphureous_a whereas_o sometime_o they_o be_v bituminous_a though_o the_o spring_n may_v sometime_o partake_v both_o of_o sulphur_n and_o bitumen_n 75_o 51._o that_o there_o be_v a_o manifest_a difference_n in_o reference_n to_o transportation_n in_o such_o ferruginous_a water_n as_o be_v light_a than_o common_a water_n 76_o 52._o how_o we_o may_v guess_v at_o the_o saltness_n of_o water_n 79_o 53._o that_o it_o be_v not_o easy_a to_o discover_v the_o accidity_n of_o liquor_n 81_o 54._o by_o what_o way_n we_o may_v know_v the_o predominancy_n of_o acidity_n in_o the_o salt_n propose_v 85_o 55._o how_o we_o may_v know_v the_o predominancy_n of_o a_o alcaly_a in_o the_o salt_n of_o a_o mineral_n water_n 86_o 56._o salt_n afford_v by_o the_o famous_a water_n of_o bourben_n in_o france_n find_v to_o be_v alcalisate_n 88_o 57_o several_a way_n of_o discover_v vitriol_n to_o be_v predominant_a in_o the_o saline_n part_n of_o a_o mineral_n water_n ib._n 56._o what_o salt_n our_o english_a water_n be_v impregnate_v with_o and_o from_o what_o salt_n the_o purgative_a virtue_n that_o be_v find_v in_o many_o of_o they_o as_o in_o epsom_n barnet_n and_o acton_n water_n etc._n etc._n do_v proceed_v 90_o 57_o that_o two_o body_n which_o be_v neither_o of_o they_o cathartick_n may_v by_o change_n of_o texture_n wrought_v in_o one_o another_o compose_v a_o three_o body_n that_o be_v brisk_o purgative_a 92_o 58._o how_o great_a a_o inequality_n may_v be_v sometime_o meet_v with_o in_o the_o proportion_n that_o the_o same_o quantity_n of_o two_o differ_a mineral_n water_n bear_v to_o the_o caput_fw-la mortuum_n they_o respective_o afford_v 94_o 59_o that_o a_o small_a quantity_n of_o matter_n of_o which_o perhaps_o not_o one_o half_a be_v saline_n or_o metalline_a the_o rest_n be_v terresstrial_a may_v impart_v a_o manifest_a virtue_n to_o a_o great_a proportion_n of_o water_n 95_o 60._o a_o spirit_n rich_o impregnate_v with_o volatilise_v sulphur_n produce_v with_o vitriol_n in_o a_o trice_n whether_o in_o the_o form_n of_o a_o powder_n or_o solution_n a_o very_a dark_a or_o blackish_a colour_n 99_o 61._o title_n for_o the_o natural_a history_n of_o a_o mineral_n water_n propose_v consider_v as_o a_o medicine_n be_v the_o three_o part_n of_o the_o design_v work_n 102_o 62._o a_o short_a discourse_n of_o the_o author_n relate_v to_o this_o present_a treatise_n 110_o 63._o if_o the_o fall_n of_o rains_n weaken_v the_o virtue_n of_o the_o mineral_n water_n 6_o 113._o short_a memoir_n for_o the_o natural_a and_o experimental_a history_n of_o particular_a mineral_n water_n address_v to_o his_o learned_a friend_n dr._n s._n l_o sect_n i._o so_o many_o year_n sir_n have_v past_a since_o i_o have_v occasion_n to_o consider_v mineral_n water_n and_o opportunity_n to_o make_v trial_n on_o they_o with_o any_o application_n of_o mind_n that_o though_o since_o that_o time_n some_o virtuoso_n have_v be_v please_v public_o to_o declare_v that_o they_o find_v some_o direction_n they_o receive_v from_o i_o not_o unuseful_a to_o the_o examen_fw-la of_o such_o water_n yet_o have_v sorgotten_v many_o of_o my_o past_a thought_n and_o lose_v on_o mislay_v most_o of_o my_o memorial_n about_o matter_n of_o fact_n relate_v to_o
i_o have_v not_o time_n to_o write_v a_o ample_a come_v mean_v upon_o it_o all_o yet_o i_o think_v fit_a to_o illustrate_v most_o of_o its_o particular_a article_n by_o such_o note_n as_o may_v either_o explicate_v the_o meaning_n of_o what_o be_v but_o brief_o couch_v or_o deliver_v some_o of_o the_o practical_a way_n of_o trial_n that_o i_o make_v use_n of_o on_o occasion_n of_o the_o subject_a mention_v in_o the_o title_n or_o article_n whereto_o the_o note_n belong_v these_o be_v divers_a of_o they_o too_o large_a to_o be_v convenient_o place_v the_o margin_n be_v all_o of_o they_o set_v down_o together_o after_o this_o sett_n of_o title_n title_n 1._o of_o the_o actual_a coldness_n or_o heat_n of_o the_o mineral_n water_n propose_v 2._o of_o the_o specific_a gravity_n of_o the_o mineral_n water_n propose_v 3._o of_o the_o transparency_n the_o muddiness_n or_o the_o opacity_n of_o the_o mineral_n water_n 4._o whether_o the_o mineral_n water_n will_v by_o slade_v for_o a_o competent_a time_n let_v fall_n of_o itself_o any_o ochre_n or_o other_o earthy_a substance_n especial_o though_o the_o liquor_n be_v keep_v from_o the_o air._n 5._o whether_o any_o thing_n and_o if_o any_o thing_n what_o can_v be_v discover_v in_o the_o mineral_n water_n by_o the_o help_n of_o the_o best_a microscope_n adapt_v to_o view_v liquor_n 6._o of_o the_o colour_n or_o colourne_v of_o the_o mineral_n water_n 7._o of_o the_o odour_n of_o the_o mineral_n water_n as_o acetous_a winy_a sulphureous_a bituminous_a etc._n etc._n 8._o of_o the_o taste_n of_o the_o mineral_n water_n as_o acid_n ferruginous_a vitriolate_a lixivial_a sulphureous_a etc._n etc._n 9_o whether_o any_o change_n will_v be_v produce_v in_o the_o transparency_n colour_n odour_n or_o taste_v of_o the_o mineral_n water_n by_o its_o be_v take_v up_o at_o the_o springhead_n or_o other_o receptacle_n or_o remove_v to_o some_o distance_n by_o its_o be_v keep_v stop_v or_o unstopped_a for_o a_o great_a or_o lesser_a space_n of_o time_n and_o by_o its_o being_n much_o warm_v or_o refrigerated_a and_o also_o by_o natural_o or_o artificial_o produce_v cold_a turn_v into_o ice_n and_o thaw_v again_o 10._o of_o the_o thinness_n or_o viscosity_n of_o the_o mineral_n water_n 11._o whether_o the_o mineral_n water_n be_v more_o easy_a to_o be_v heat_v and_o cool_v and_o to_o be_v dilate_v and_o condense_v than_o common_a water_n 12._o whether_o the_o mineral_n water_n will_v of_o itself_o putrify_v and_o if_o it_o will_v whether_o soon_o or_o late_a than_o common_a water_n and_o with_o what_o kind_n or_o degree_n of_o stink_n and_o other_o phaenomena_n 13._o of_o the_o change_n of_o colour_n producible_a in_o the_o mineral_n water_n by_o astringent_a drug_n as_o gall_n pomgranate-peels_a balaustium_fw-la red_a rose_n myrobolan_n oakenleaves_n etc._n etc._n as_o also_o by_o some_o liquor_n or_o juice_n of_o the_o body_n 14._o whether_o any_o thing_n will_v be_v precipitate_v out_o of_o the_o mineral_n water_n by_o salt_n or_o saline_n liquor_n whether_o they_o be_v acid_n as_o spirit_n of_o salt_n of_o niter_n aqua_fw-la fortis_fw-la etc._n etc._n or_o volatile_a alcali_n as_o strong_a spirit_n of_o urine_n sal-armoniac_a etc._n etc._n or_o lixiviate_v salt_n as_o oil_n of_o tartar_n per_fw-la deliquium_fw-la fix_v niter_n etc._n etc._n 15._o how_o to_o examine_v with_o evaporation_n whether_o the_o mineral_n water_n contain_v common_a salt_n and_o if_o it_o do_v whether_o it_o contain_v but_o little_a or_o much_o 16._o how_o to_o examine_v without_o evaporation_n whether_o the_o mineral_n water_n have_v any_o acidity_n though_o it_o be_v but_o very_o little_a 17._o of_o the_o liquor_n or_o liquor_n afford_v by_o the_o mineral_n water_n by_o distillation_n in_o balneo_fw-la and_o other_o way_n 18._o of_o the_o residence_n cap._n mort._n of_o the_o mineral_n water_n when_o the_o liquor_n be_v total_o evaporate_v or_o distil_v off_o and_o whether_o the_o cap._n mort._n be_v the_o same_o in_o quantity_n and_o quality_n if_o produce_v by_o either_o of_o those_o way_n 19_o whether_o the_o propose_a water_n be_v in_o glass-vessel_n exact_o lute_v together_o slow_o and_o wary_o abstract_v to_o a_o thickish_a substance_n this_o be_v reconjoin_v to_o the_o distil_a liquor_n the_o mineral_n water_n will_v be_v redintegrate_v and_o have_v again_o the_o same_o texture_n and_o quality_n it_o have_v at_o first_o 20._o whether_o a_o glass-full_a of_o the_o mineral_n water_n be_v hermetical_o seal_v and_o boil_v in_o common_a water_n deep_a enough_o to_o keep_v it_o always_o cover_v will_v have_v its_o texture_n so_o alter_v as_o to_o suffer_v a_o observable_a change_n in_o any_o of_o its_o manifest_a quality_n and_o if_o it_o do_v in_o what_o quality_n and_o to_o what_o degree_n of_o alteration_n 21._o of_o the_o proportion_n of_o the_o dry_a cap._n mort._n to_o the_o mineral_n water_n that_o afford_v it_o 22._o of_o the_o division_n of_o the_o cap._n mort._n into_o saline_n and_o terrestrial_a and_o other_o part_n not_o dissoluble_a in_o water_n in_o case_n it_o contain_v both_o or_o more_o sort_n 23._o of_o the_o proportion_n of_o the_o saline_n part_n of_o the_o cap._n mort._n to_o the_o terrestrial_a 24._o of_o the_o fixity_n or_o volatility_n of_o the_o saline_n part_n in_o strong_a fire_n 25._o whether_o the_o saline_n part_n will_v shoot_v into_o crystal_n or_o no_o and_o if_o it_o will_v what_o figure_n the_o grain_n will_v be_v of_o and_o if_o it_o will_v not_o whither_o be_v combine_v with_o a_o salt_n that_o will_v as_o purify_v sea-salt_n peter_n &c._n &c._n it_o will_v then_o crystallise_v and_o if_o it_o do_v into_o what_o figure_n it_o will_v shoot_v especial_o if_o any_o of_o they_o be_v reducible_a to_o those_o of_o any_o species_n of_o salt_n know_v to_o we_o 26._o to_o examine_v whether_o the_o saline_n part_n be_v ex_fw-la praedominio_fw-la acid_n alcalizate_a or_o adiaphorous_a 27._o of_o the_o observables_n in_o the_o terestrial_a portion_n of_o the_o cap._n mort._n as_o beside_o its_o quantity_n in_o reference_n to_o the_o saline_n its_o colour_n odour_n volatility_n or_o fixity_n in_o a_o strong_a fire_n it_o be_v be_v soluble_a or_o not_o dissoluble_a by_o divers_a menstruum_n as_o spirit_n of_o vinegar_n spirit_n of_o urine_n oil_n of_o tartar_n etc._n etc._n 28._o whether_o and_o if_o any_o thing_n how_o much_o the_o mineral_n water_n earth_n lose_v by_o strong_a and_o last_a ignition_n what_o change_v of_o colour_n etc._n etc._n it_o thereby_o receive_v whether_o it_o be_v capable_a of_o vitrification_n pierce_v and_o what_o colour_n if_o any_o it_o will_v impart_v to_o fine_a and_o well_o powder_v venice_n glass_n if_o they_o be_v exact_o mix_v and_o flux_v into_o a_o transparent_a glass_n 29._o of_o the_o oeconomical_a and_o mechanical_a use_n of_o the_o mineral_n water_n as_o in_o brew_v bake_v wash_v of_o linen_n tan_v of_o leather_n or_o die_v of_o cloth_n callico_n silk_n &c_n &c_n as_o these_o may_v assist_v in_o discover_v the_o ingredient_n and_o quality_n of_o the_o liquor_n propose_v 30._o of_o the_o imitation_n of_o natural_a medicinal_a water_n by_o chemical_a and_o other_o artificial_a way_n as_o that_o may_v help_v the_o physician_n to_o guess_v at_o the_o quality_n and_o quantity_n of_o the_o ingredient_n that_o impregnate_n the_o natural_a water_n propose_v a_o appendix_n contain_v 1._o paralipomena_fw-la or_o thing_n direct_o belong_v to_o the_o history_n and_o pretermit_v in_o it_o 2._o a_o chaos_n of_o observation_n and_o experiment_n remote_o or_o indirect_o referable_a either_o to_o one_o or_o more_o of_o the_o forego_n title_n or_o to_o the_o common_a subject_n of_o they_o all_o sect_n iv._o experimental_a remark_n upon_o the_o usual_a way_n of_o examine_v mineral_n water_n by_o the_o help_n of_o gall_n deliver_v by_o way_n of_o large_a annotation_n upon_o the_o xiii_o article_n of_o the_o ii_o part._n since_o the_o change_n of_o colour_n that_o mineral_n water_n produce_v in_o the_o infusion_n or_o tincture_n of_o gall_n be_v the_o most_o usual_a way_n that_o many_o physician_n and_o the_o almost_o only_o that_o some_o of_o they_o endeavour_v to_o discover_v or_o examine_v mineral_n water_n by_o it_o may_v be_v worth_a while_n in_o this_o place_n to_o set_v down_o some_o remark_n that_o i_o have_v make_v about_o this_o way_n of_o probation_n &_o the_o rather_o because_o it_o may_v mutatis_fw-la mutandis_fw-la be_v not_o unuseful_o apply_v to_o the_o explore_v the_o quality_n of_o mineral_n water_n by_o coloration_n though_o make_v with_o other_o material_n than_o gall_n first_o than_o it_o may_v be_v observe_v that_o one_o need_v not_o make_v a_o infusion_n or_o tncture_n of_o gall_n in_o common_a water_n to_o try_v if_o by_o their_o mean_n a_o new_a colour_n will_v be_v produce_v for_o i_o be_o wont_a to_o beat_v they_o to_o powder_n and_o keep_v they_o in_o a_o glass_n not_o too_o
big_a exact_o stop_v by_o which_o mean_n i_o have_v they_o always_o in_o readiness_n to_o mingle_v with_o the_o mineral_n water_n and_o alter_v the_o colour_n of_o it_o if_o gall_n be_v able_a to_o do_v it_o almost_o in_o atrice_n whereas_o to_o draw_v the_o tincture_n of_o gall_n with_o simple_a water_n often_o take_v up_o several_a hour_n and_o the_o ting_a part_n be_v much_o weaken_v by_o be_v dilute_v by_o the_o menstruum_fw-la if_o you_o will_v have_v a_o tincture_n the_o powder_n of_o gall_n tie_v up_o close_o in_o a_o rag_n and_o with_o it_o hang_v in_o the_o liquor_n make_v the_o infusion_n less_o muddy_a if_o you_o be_v in_o haste_n and_o have_v none_o of_o the_o powder_n at_o hand_n you_o may_v scrape_v as_o much_o of_o a_o gall-apple_n as_o you_o need_v into_o the_o mineral_n water_n 2._o i_o have_v observe_v those_o part_n of_o the_o infusion_n of_o gall_n especial_o it_o make_v by_o heat_n that_o produce_v the_o new_a colour_n with_o ferruginous_a water_n to_o be_v more_o apt_a to_o fly_v away_o than_o one_o will_v think_v the_o infusion_n become_v often_o unfit_a to_o alter_v the_o colour_n of_o the_o martial_a water_n whilst_o yet_o itself_o appear_v sufficient_o high_a colour_v upon_o which_o account_n i_o choose_v to_o make_v a_o tincture_n of_o gall_n not_o long_o before_o i_o mind_n to_o use_v it_o and_o if_o i_o employ_v dry_a gall_n to_o take_v powder_n that_o be_v not_o stale_a 3._o it_o be_v no_o safe_a way_n and_o may_v be_v very_o erroneous_a that_o be_v usual_o take_v in_o mix_v gall_n or_o their_o infusion_n with_o the_o water_n to_o be_v explore_v so_o careless_o as_o be_v wont_a to_o be_v do_v for_o those_o that_o be_v curious_a to_o make_v good_a ink_n will_v easy_o believe_v that_o much_o of_o the_o deepness_n of_o the_o colour_n depend_v upon_o the_o proportion_n of_o gall_n to_o the_o other_o ingredient_n and_o according_o that_o by_o put_v a_o much_o great_a or_o a_o much_o lesser_a quantity_n of_o gall_n into_o such_o a_o quantity_n of_o the_o mineral_n water_n the_o result_a colour_n may_v be_v more_o or_o less_o intense_a to_o obviate_v which_o inconvenience_n i_o take_v this_o course_n when_o the_o occasion_n deserve_v it_o i_o make_v my_o infusion_n of_o gall_n with_o a_o certain_a weight_n of_o the_o powder_n in_o a_o determinate_a weight_n of_o water_n as_o for_o instance_n i_o put_v about_o five_o gr_n of_o powder_a gall_n to_o sleep_v for_o so_o many_o hour_n in_o a_o ounce_n of_o water_n but_o if_o i_o make_v use_n of_o the_o dry_a powder_n than_o i_o be_o wont_a to_o put_v three_o or_o four_o grain_n into_o a_o ounce_n of_o the_o liquor_n to_o be_v examine_v which_o be_v a_o way_n far_o more_o certain_a than_o the_o common_a wherein_o the_o ingredient_n be_v aestimate_v but_o by_o guess_n i_o have_v have_v mention_v various_a proportion_n of_o powder_a gall_n to_o the_o same_o quantity_n of_o liquor_n because_o i_o have_v observe_v that_o there_o be_v real_o a_o great_a inequality_n among_o the_o mineral_n water_n in_o which_o it_o may_v be_v put_v and_o i_o have_v find_v by_o trial_n that_o in_o a_o ounce_n of_o the_o german_a spa_n a_o single_a grain_n of_o powder_n will_v immediate_o produce_v a_o sufficient_o deep_a purple_a colour_n it_o be_v a_o inconvenience_n that_o not_o only_a gall_n but_o the_o other_o drug_n hereafter_o to_o be_v mention_v impart_v a_o high_a tincture_n of_o their_o own_o to_o the_o common_a water_n they_o be_v infuse_v in_o and_o therefore_o it_o be_v to_o be_v wish_v and_o be_v fit_a to_o be_v endeavour_v that_o we_o have_v some_o drugg_n that_o without_o impart_v a_o colour_n to_o the_o common_a water_n it_o impregnate_v will_v afford_v a_o infusion_n fit_a to_o strike_v a_o blackish_a or_o a_o purple_a colour_n with_o martial_a water_n though_o it_o be_v useful_a yet_o it_o be_v not_o necessary_a to_o employ_v gall_n to_o produce_v a_o colour_n in_o the_o mineral_n water_n propose_v for_o beside_o that_o it_o be_v know_v that_o usual_o though_o not_o always_o as_o i_o have_v try_v the_o same_o thing_n may_v be_v do_v but_o somewhat_o more_o faint_o with_o oaken_a leave_n we_o may_v successful_o enough_o substitute_n for_o the_o same_o purpose_n some_o other_o astringent_a vegetable_n as_o dry_a red-rose_n leave_v the_o peel_n and_o as_o we_o have_v try_v the_o juice_n of_o pomegranate_n and_o what_o i_o find_v to_o be_v a_o notable_a styptic_a the_o blossom_n of_o the_o same_o plant_n which_o be_v vulgar_o call_v in_o the_o shop_n ballaustium_fw-la to_o which_o may_v be_v add_v myrobolan_n logwood_n and_o some_o other_o that_o need_v not_o now_o be_v mention_v who_o strong_a infusion_n have_v yield_v i_o a_o tincture_n very_o dark_a and_o blackish_a with_o some_o martial_a liquor_n 6._o in_o regard_n that_o the_o gall_n or_o other_o drug_n to_o be_v infuse_v in_o common_a water_n be_v not_o always_o of_o the_o same_o goodness_n or_o strength_n it_o be_v adviseable_a not_o so_o to_o trust_v to_o any_o determinate_a proportion_n of_o the_o pigment_n to_o the_o water_n as_o not_o to_o take_v in_o the_o help_n of_o the_o eye_n to_o judge_v by_o the_o colour_n of_o the_o tincture_n whether_o the_o liquor_n be_v due_o and_o not_o too_o much_o or_o too_o little_a impregnate_v 8._o whereas_o there_o be_v a_o intimation_n in_o the_o close_a of_o this_o thirteen_o article_n of_o the_o present_a sett_n of_o title_n that_o animal_n liquor_n may_v be_v employ_v to_o produce_v new_a colour_n with_o mineral_n water_n i_o give_v that_o hint_n not_o only_o because_o it_o be_v usual_o observe_v in_o martial_a water_n such_o as_o those_o of_o tunbridge_n the_o spa_n etc._n etc._n that_o the_o gross_a excrement_n of_o the_o low_a belly_n be_v blacken_v by_o a_o commixture_n of_o their_o metalline_a part_n but_o in_o tunbridge_n water_n particular_o i_o have_v observe_v that_o after_o the_o drink_n of_o large_a dose_n of_o they_o the_o root_n of_o the_o tongue_n and_o perhaps_o some_o neighbour_a part_n will_v also_o acquire_v a_o dark_a colour_n by_o the_o operation_n of_o the_o transient_a liquor_n though_o the_o way_n of_o try_v mineral_n water_n by_o the_o change_n of_o colour_n that_o gall_n produce_v in_o they_o be_v useful_a and_o recommend_v by_o be_v easy_a cheap_a and_o expeditious_a yet_o i_o do_v not_o take_v it_o to_o be_v either_o of_o that_o extent_n or_o of_o that_o certainty_n that_o it_o be_v vulgar_o presume_v to_o be_v of_o for_o its_o main_a if_o not_o only_o considerable_a use_n be_v to_o discover_v by_o strike_v or_o not_o afford_v a_o black_a or_o blackish_a or_o at_o least_o a_o purple_a or_o a_o purplish_a colour_n with_o a_o mineral_n water_n to_o manifest_v the_o liquor_n to_o be_v or_o not_o to_o be_v either_o of_o a_o vitriolate_a or_o a_o ferruginous_a nature_n but_o there_o be_v divers_a metalline_a oar_n and_o other_o mineral_n body_n which_o not_o participate_v of_o iron_n will_v not_o by_o this_o way_n be_v discoverable_a and_o yet_o may_v strong_o impregnate_n the_o water_n propose_v as_o for_o example_n to_o try_v whether_o if_o arsenic_n be_v mingle_v with_o water_n gall_n will_v discover_v it_o by_o produce_v with_o it_o a_o dark_a colour_n i_o put_v some_o of_o the_o powder_n of_o they_o into_o a_o decoction_n of_o arsenic_n but_o do_v not_o perceive_v that_o it_o give_v the_o liquor_n any_o deep_a colour_n than_o it_o will_v have_v do_v to_o common_a water_n and_o as_o the_o extent_n of_o this_o explorer_n of_o water_n be_v not_o very_o great_a so_o neither_o do_v i_o find_v the_o information_n it_o give_v we_o to_o be_v so_o certain_a as_o they_o be_v presume_v for_o if_o i_o much_o misremember_v not_o i_o long_o since_o find_v upon_o trial_n purposely_o make_v that_o another_o body_n of_o a_o metalline_a nature_n and_o that_o do_v not_o partake_v of_o iron_n will_v with_o infusion_n of_o gall_n afford_v a_o very_a dark_a colour_n that_o may_v easy_o among_o ordinary_a beholder_n pass_v for_o the_o colour_n produce_v by_o a_o martial_a water_n and_o i_o do_v somewhat_o doubt_v whether_o so_o much_o as_o all_o liquor_n impregnate_v with_o iron_n will_v the_o discover_v to_o be_v so_o by_o the_o colour_n they_o afford_v with_o gall_n for_o i_o have_v sometime_o make_v such_o a_o liquor_n with_o no_o mineral_n substance_n in_o it_o save_o steel_n or_o iron_n but_o i_o do_v not_o find_v it_o will_v turn_v the_o infusion_n of_o gall_n either_o blackish_a or_o purple_a which_o make_v i_o suspect_n that_o these_o colour_n be_v afford_v only_o by_o such_o martial_a water_n as_o have_v be_v wrought_v upon_o more_o or_o less_o by_o some_o acid_n salt_n or_o fume_n 9_o unto_o these_o thing_n i_o shall_v add_v that_o i_o find_v that_o to_o be_v a_o mistake_n which_o be_v general_o