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of_o light_n have_v not_o less_o considerable_a effect_n which_o be_v evident_a from_o the_o influence_n red_a cloth_n have_v upon_o turkey-cock_n and_o the_o learned_a valesius_fw-la
compare_v with_o that_o of_o common_a water_n will_v show_v what_o quantity_n of_o mineral_n substance_n the_o water_n have_v dissolve_v in_o it_o and_o whether_o metalline_a or_o more_o volatile_a as_o it_o be_v heavy_a or_o light_a where_o we_o be_v to_o observe_v that_o mineral_n water_n be_v sometime_o light_a than_o common_a water_n partly_o because_o they_o be_v impregnate_v with_o volatile_a part_n and_o partly_o because_o they_o be_v void_a of_o saline_n part_n which_o make_v common_a water_n something_o heavy_a but_o to_o discover_v the_o different_a weight_n of_o several_a mineral_n water_n i_o cause_v a_o glass-viol_n with_o a_o flat_a bottom_n and_o a_o long_a neck_n three_o inch_n long_o to_o be_v blow_v which_o be_v so_o light_a as_o to_o weigh_v but_o ʒvi_fw-la +_o 42_o grain_n though_o it_o be_v capable_a of_o contain_v ℥_o iij_o ss_z and_o 43_o grain_n of_o water_n which_o make_v it_o more_o proper_a for_o a_o nice_a balance_n by_o which_o i_o find_v the_o follow_a 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try_v must_v not_o be_v expose_v to_o the_o air_n for_o if_o it_o be_v the_o air_n will_v precipitate_v a_o considerable_a quantity_n of_o matter_n in_o most_o water_n 5._o what_o microscope_n can_v discover_v in_o mineral_n water_n n._n b._n those_o move_a corpuscle_n discernible_a in_o a_o solution_n of_o pepper_n etc._n etc._n in_o water_n be_v animalcula_fw-la and_o not_o portion_n of_o inanimate_a matter_n which_o swim_v up_o and_o down_o such_o liquor_n which_o be_v apparent_a if_o those_o little_a animal_n be_v touch_v with_o spirit_n of_o salt_n for_o be_v kill_v by_o it_o they_o move_v much_o more_o slow_o 6._o whether_o there_o be_v any_o variety_n of_o colour_n in_o several_a mineral_n water_n 7._o of_o their_o different_a odour_n these_o be_v to_o be_v perceive_v at_o the_o spring-head_n where_o not_o only_o a_o bituminous_a and_o sulphurous_a smell_n may_v easy_o be_v perceive_v but_o i_o be_o inform_v that_o there_o be_v a_o mineral_n spring_n in_o france_n which_o have_v a_o manifest_a vinous_a odour_n 8._o concern_v the_o different_a taste_n of_o mineral_n water_n 9_o whether_o take_v it_o up_o or_o keep_v it_o stop_v or_o unstopped_a or_o whether_o freeze_a or_o thaw_v it_o will_v alter_v the_o colour_n smell_v or_o transparency_n of_o it_o for_o though_o some_o water_n retain_v their_o purgative_n virtue_n a_o good_a while_n yet_o i_o have_v observe_v a_o exhalation_n of_o some_o fugitive_a part_n from_o those_o which_o be_v light_a than_o water_n and_o abound_v with_o spirituous_a part_n so_o that_o though_o they_o be_v carry_v but_o a_o little_a way_n from_o the_o fountain_n they_o present_o lose_v their_o power_n of_o turn_v a_o tincture_n of_o gall_n into_o a_o purple_a and_o instead_o of_o that_o turn_v it_o red_a and_o even_o the_o strong_a water_n if_o keep_v unstop_v or_o not_o keep_v close_o present_o lose_v that_o property_n 10._o concern_v the_o different_a consistency_n of_o such_o water_n 11._o whether_o they_o be_v more_o apt_a to_o expansion_n and_o condensation_n or_o heat_v and_o coldness_n than_o common_a water_n 12._o whether_o they_o be_v apt_a to_o putrify_v and_o how_o soon_o and_o what_o phaenomena_n they_o afford_v 13._o what_o alteration_n in_o colour_n ensue_v the_o mixture_n of_o astringent_a juice_n with_o they_o as_o also_o their_o mixture_n with_o several_a juice_n of_o the_o body_n n._n b._n in_o try_v of_o mineral_n water_n it_o be_v usual_a to_o make_v use_n of_o a_o tincture_n of_o gall_n without_o consider_v the_o alteration_n which_o may_v be_v make_v in_o the_o trial_n by_o a_o uncertain_a proportion_n of_o gall_n wherefore_o i_o usual_o make_v use_v of_o a_o settle_a proportion_n as_o 5_o grain_n to_o a_o ounce_n though_o mineral_n water_n may_v be_v try_v with_o much_o more_o expedition_n and_o certainty_n by_o make_v use_n of_o the_o powder_n itself_o suspend_v about_o three_o grain_n of_o powder_n in_o a_o ounce_n of_o the_o water_n and_o i_o have_v find_v by_o experience_n that_o so_o small_a a_o quantity_n as_o a_o grain_n have_v give_v german_a spaw-water_n a_o deep_a purple_a colour_n but_o it_o be_v not_o always_o necessary_a to_o make_v use_n of_o gall_n in_o such_o trial_n since_o rose_n leave_v or_o the_o flower_n and_o bark_n of_o pomegranate_n will_v have_v much_o the_o same_o effect_n afford_v a_o cloudy_a and_o blackish_a tincture_n and_o it_o be_v further_a to_o be_v note_v that_o i_o make_v it_o one_o part_n of_o this_o quaere_fw-la what_o colour_n will_v be_v produce_v by_o a_o mixture_n of_o mineral_n water_n with_o animal_n juice_n because_o i_o have_v observe_v the_o root_n of_o the_o tongue_n sometime_o blackish_a upon_o the_o take_n of_o large_a dose_n but_o to_o return_v to_o what_o i_o have_v observe_v concern_v the_o try_v of_o mineral_n water_n by_o a_o infusion_n of_o gall_n i_o not_o only_o doubt_v whether_o all_o martial_a water_n will_v turn_v a_o tincture_n of_o gall_n black_a but_o whether_o all_o liquor_n which_o will_v be_v to_o be_v esteem_v martial_a for_o i_o have_v find_v that_o a_o mineral_n of_o a_o different_a nature_n from_o steel_n will_v give_v it_o a_o black_a colour_n and_o that_o a_o liquor_n which_o be_v a_o preparation_n of_o steel_n will_v not_o which_o induce_v i_o to_o think_v that_o such_o a_o tincture_n be_v rather_o the_o effect_n of_o some_o acid_n fume_n which_o have_v work_v on_o the_o mars_n with_o which_o those_o mineral_n water_n be_v impregnate_v to_o which_o it_o may_v be_v add_v that_o i_o have_v find_v that_o if_o a_o vitriolate_a water_n be_v impregnate_v with_o copper_n instead_o of_o iron_n instead_o of_o turn_v a_o tincture_n of_o gall_n blackish_a it_o only_o will_v render_v it_o muddy_a and_o thick_a and_o i_o have_v a_o sort_n of_o white_a earth_n which_o i_o find_v by_o trial_n to_o be_v lead_n that_o will_v turn_v a_o tincture_n of_o gall_n blackish_a though_o it_o be_v altoger_n void_a of_o martial_a part_n and_o probable_o will_v have_v very_o bad_a effect_n if_o take_v inward_o to_o which_o i_o may_v further_o add_v that_o a_o tincture_n of_o gold_n in_o aqua_fw-la fortis_fw-la likewise_o turn_v a_o infusion_n of_o gall_n black_n and_o those_o observation_n i_o have_v be_v the_o willing_a to_o lay_v down_o because_o though_o i_o will_v not_o be_v think_v by_o they_o to_o slight_v the_o use_n of_o gall_n in_o such_o trial_n yet_o i_o will_v thence_o urge_v they_o to_o make_v such_o trial_n to_o be_v more_o wary_o make_v water_n observation_n requisite_a in_o try_v mineral_n water_n and_o because_o it_o may_v be_v of_o some_o use_v to_o observe_v the_o different_a colour_n exhibit_v by_o such_o trial_n i_o shall_v add_v the_o follow_a consideration_n as_o requisite_a to_o be_v think_v on_o by_o he_o who_o design_n to_o make_v such_o experiment_n 1._o that_o he_o ought_v to_o observe_v the_o change_n of_o colour_n make_v by_o such_o tincture_n in_o a_o good_a light_n which_o may_v help_v a_o curious_a observer_n to_o distinguish_v what_o mineral_n such_o tincture_n be_v impregnate_v with_o 2._o it_o way_n be_v of_o use_v to_o vary_v the_o shade_n of_o colour_n produce_v by_o mineral_n water_n either_o by_o drop_v such_o water_n upon_o paper_n who_o pore_n be_v saturate_v with_o vitriol_n powder_v or_o tinge_v with_o a_o decoction_n of_o log-wood_n several_a variation_n in_o colour_n may_v be_v also_o make_v by_o drop_v other_o medicinal_a liquor_n either_o into_o the_o mineral_n water_n or_o the_o infusion_n of_o gall_n before_o mixture_n or_o after_o 3._o i_o will_v recommend_v for_o such_o trial_n not_o only_o the_o part_n of_o astringent_a plant_n but_o also_o animal_n and_o especial_o mineral_n substance_n for_o beside_o the_o astringent_n i_o have_v contrive_v a_o certain_a substance_n which_o will_v not_o only_o turn_v a_o vitriol_n water_n impregnate_v with_o iron_n
black_a but_o also_o one_o saturate_v with_o copper_n a_o succedaneum_n to_o which_o may_v be_v make_v by_o add_v to_o sulphur_n as_o it_o melt_v over_o the_o fire_n and_o equal_a proportion_n of_o salt_n of_o tartar_n fine_o powder_v stir_v they_o till_o they_o incorporate_v and_o become_v red_a which_o mixture_n be_v put_v into_o a_o glass_n retort_n with_o half_a its_o weight_n of_o salarmoniack_a dissolve_v in_o water_n let_v it_o be_v distil_v in_o sand_n shift_v the_o receiver_n as_o the_o liquor_n draw_v off_o be_v tinge_v more_o or_o less_o so_o that_o the_o strong_a may_v be_v preserve_v by_o itself_o and_o such_o trial_n as_o these_o will_v be_v of_o more_o use_n than_o those_o usual_o make_v with_o a_o bare_a tincture_n of_o gall_n since_o there_o be_v several_a mineral_n substance_n and_o other_o body_n which_o mineral_n water_n may_v be_v impregnate_v with_o which_o discover_v not_o themselves_o in_o a_o infusion_n of_o gall_n as_o sulphur_n or_o copper_n may_v be_v so_o lock_v up_o in_o these_o water_n as_o not_o to_o be_v perceive_v till_o the_o body_n of_o the_o liquor_n be_v open_v by_o some_o proper_a additament_n and_o even_o arsenic_n itself_o may_v be_v so_o disguise_v as_o not_o to_o be_v perceive_v when_o mix_v with_o the_o water_n yet_o if_o spirit_n of_o urine_n or_o oil_n of_o tartar_n per_fw-la deliquium_fw-la be_v drop_v into_o a_o solution_n of_o it_o it_o present_o precipitate_v in_o the_o form_n of_o a_o white_a powder_n and_o so_o likewise_o if_o a_o solution_n of_o sublimate_n be_v add_v to_o it_o they_o whether_o mineral_n water_n have_v arsenic_n dissolve_v in_o they_o but_o to_o discover_v whether_o mineral_n water_n be_v impregnate_v with_o arsenic_n or_o not_o i_o put_v dantzick_n or_o english_a vitriol_n into_o a_o solution_n of_o it_o either_o of_o which_o cause_v a_o dark_a precipitate_v gradual_o to_o subside_o 14._o whether_o spirituous_a acid_n volatile_a alkalys_n or_o lixivial_a salt_n will_v precipitate_v such_o water_n 15._o the_o manner_n of_o extract_a salt_n from_o such_o water_n and_o what_o quantity_n may_v be_v extract_v guess_n may_v be_v make_v concern_v the_o saltness_n of_o these_o water_n by_o try_v whether_o they_o will_v lather_n with_o soap_n and_o if_o not_o what_o quantity_n of_o curdle_a matter_n they_o will_v yield_v i_o have_v observe_v that_o even_o the_o light_a water_n will_v yield_v a_o small_a quantity_n of_o common_a salt_n 16._o how_o to_o discover_v what_o acidity_n be_v to_o be_v find_v without_o evaporation_n have_v take_v a_o peculiar_a method_n to_o try_v the_o acidity_n of_o mineral_n water_n by_o mix_v they_o with_o a_o infusion_n of_o lignum_fw-la nephriticum_fw-la in_o simple_a water_n i_o find_v that_o though_o german_a spa_n yield_v a_o small_a quantity_n yet_o in_o that_o of_o action_n there_o be_v none_o discernible_a 17._o what_o may_v be_v observe_v by_o distillation_n in_o balnco_n 18._o what_o and_o whether_o the_o same_o quantity_n of_o caput_n mortuum_n be_v afford_v by_o evaporation_n and_o distillation_n 19_o whether_o mineral_n water_n will_v acquire_v the_o same_o quality_n and_o texture_n by_o a_o reunion_n of_o their_o caput_fw-la mortuum_n when_o distil_v to_o such_o a_o consistence_n in_o glass-vessel_n exact_o lute_v which_o they_o have_v before_o 20._o what_o change_n if_o any_o mineral_n water_n undergo_v by_o be_v boil_v in_o water_n in_o a_o glass_n hermetical_o seal_v from_o whence_o may_v be_v learn_v whether_o a_o change_n of_o quality_n will_v succeed_v a_o alteration_n of_o texture_n without_o a_o manifest_a loss_n of_o part_n and_o whether_o a_o agitation_n of_o part_n without_o the_o influence_n of_o the_o air_n will_v precipitate_v any_o thing_n or_o deprive_v it_o of_o its_o power_n to_o turn_v a_o tincture_n of_o gall_n purple_a 21._o how_o much_o the_o mineral_n water_n exceed_v their_o caput_fw-la mortuum_n in_o proportien_n 22._o what_o part_n be_v contain_v in_o the_o caput_fw-la mortuum_n and_o whether_o dissoluble_a in_o water_n 23._o how_o much_o the_o saline_n and_o terrestrial_a part_n differ_v in_o proportion_n 24._o whether_o in_o strong_a fire_n the_o salt_n be_v volatile_a or_o fix_a and_o to_o what_o degree_n 25._o whether_o the_o salt_n will_v crystallize_v per_fw-la se_fw-la or_o with_o other_o salt_n and_o what_o be_v the_o figure_n of_o the_o genuine_a or_o compound_v crystal_n 26._o whether_o acid_n or_o alkaline_n quality_n be_v most_o predominant_a the_o acidity_n will_v either_o appear_v to_o the_o taste_n or_o smell_v or_o may_v be_v discover_v by_o turn_v syrup_n of_o violet_n red_a as_o also_o by_o make_v use_n of_o a_o infusion_n of_o lignum_fw-la nephriticum_fw-la which_o upon_o a_o mixture_n of_o acid_n lose_v its_o blue_a colour_n their_o acidity_n may_v likewise_o be_v discover_v by_o try_v whether_o they_o will_v be_v precipitate_v by_o alkalys_n or_o ferment_n with_o they_o and_o if_o alkaly_n be_v predominant_a it_o on_o the_o contrary_n discover_v itself_o by_o a_o lixivial_a taste_n and_o smell_v and_o may_v be_v discover_v by_o turn_v syrup_n of_o violet_n green_a or_o precipitate_v a_o solution_n of_o sublimate_n or_o ferment_v with_o aqua_fw-la fortis_fw-la or_o last_o by_o increase_v the_o colour_n of_o a_o tincture_n of_o brasil_n or_o log-wood_n in_o common-water_n and_o though_o we_o have_v no_o such_o spring_n here_o in_o england_n as_o afford_v alkaline_a salt_n yet_o without_o question_n in_o egypt_n such_o may_v be_v find_v since_o their_o latron_n or_o the_o egyptian_a nitre_n abound_v with_o a_o salt_n of_o a_o alkaline_a nature_n and_o i_o have_v obtain_v such_o a_o alkaly_n from_o that_o famous_a water_n of_o bourbon_n in_o france_n which_o will_v turn_v syrup_n of_o violet_n green_a and_o ferment_n with_o volatile_a acid_n if_o such_o water_n abound_v with_o vitriol_n they_o will_v turn_v a_o infusion_n of_o gall_n black_a and_o vomit_v those_o that_o drink_v they_o and_o if_o a_o alkaly_n be_v add_v will_v yield_v a_o yellow_a precipitate_v upon_o drop_v of_o spirit_n of_o urine_n or_o salt_n of_o tartar_n into_o they_o i_o have_v not_o find_v any_o of_o the_o water_n about_o london_n to_o be_v impregnate_v with_o vitriol_n and_o i_o be_o tell_v that_o in_o france_n the_o mineral_n water_n be_v so_o far_o from_o be_v impregnate_v with_o vitriol_n that_o there_o be_v a_o vitriolate_a spring_n in_o that_o kingdom_n as_o for_o the_o nature_n of_o the_o salt_n which_o most_o mineral_n water_n be_v impregnate_v with_o i_o think_v that_o it_o be_v not_o to_o be_v refer_v to_o any_o glass_n but_o be_v either_o svi_fw-la generis_fw-la and_o a_o peculiar_a one_o or_o a_o compound_v salt_n make_v up_o of_o such_o as_o the_o water_n be_v impregnate_v with_o in_o its_o passage_n through_o the_o earth_n and_o that_o purgative_n salt_n may_v by_o a_o change_n of_o texture_n be_v make_v of_o salt_n not_o at_o all_o purgative_n i_o the_o rather_o believe_v because_o i_o have_v be_v tell_v by_o a_o 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mercury_n so_o easy_o the_o rarefy_v air_n will_v rather_o penetrate_v than_o buoy_n it_o up_o suction_n the_o reason_n of_o suction_n to_o show_v in_o opposition_n to_o mr._n hobbs_n how_o much_o the_o atmospherical_a air_n be_v concern_v in_o suction_n we_o take_v a_o glass_n bubble_n who_o long_a stem_n be_v cylindrical_a and_o very_a slender_a and_o have_v by_o the_o help_n of_o heat_n expel_v a_o good_a quantity_n of_o the_o air_n contain_v in_o it_o when_o by_o immerge_v it_o in_o water_n that_o rarefy_v air_n which_o remain_v in_o it_o be_v condense_v the_o water_n be_v almost_o raise_v to_o the_o top_n of_o the_o pipe_n when_o this_o be_v do_v the_o air_n in_o the_o bubble_n be_v rarify_v it_o force_v out_o almost_o all_o the_o water_n in_o the_o stem_n only_o a_o few_o drop_n which_o satisfy_v we_o that_o none_o of_o the_o rarefy_v air_n have_v get_v out_o of_o the_o pipe_n as_o the_o depression_n of_o the_o water_n so_o low_o assure_v we_o on_o the_o other_o side_n that_o 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proceed_v to_o consider_v exanune_v the_o cause_n of_o suction_n as_o lay_v down_o by_o other_o exanune_v that_o species_n of_o it_o call_v suction_n for_o which_o several_a philosopher_n have_v think_v on_o various_a cause_n as_o nature_n abhorrency_n of_o a_o vacuum_n which_o be_v it_o true_a water_n by_o suction_n may_v be_v raise_v to_o any_o height_n but_o we_o have_v find_v by_o experience_n that_o it_o will_v not_o be_v raise_v above_o 33_o ½_n foot_n which_o weight_n the_o atmosphere_n be_v able_a to_o buoy_v up_o as_o appear_v from_o the_o torrecellian_a experiment_n and_o further_o from_o a_o experiment_n elsewhere_o lay_v down_o where_o though_o water_n may_v present_o be_v suck_v up_o to_o the_o top_n of_o a_o pipe_n 3_o foot_n long_o yet_o
poison_n and_o in_o some_o a_o faintness_n and_o dispiritedness_n according_a to_o the_o testimony_n of_o several_a physician_n and_o that_o mineral_n expiration_n may_v cause_v a_o determinate_a distemper_n we_o may_v learn_v from_o a_o observation_n of_o i_o which_o be_v that_o a_o chemist_n rub_v very_o often_o red_a arsenic_n in_o a_o mortar_n and_o endeavour_v to_o make_v a_o excellent_a medicine_n of_o it_o first_o complain_v to_o i_o of_o a_o difficulty_n of_o breathe_v and_o sometime_o of_o pain_n and_o tumour_n in_o his_o testicle_n and_o it_o will_v not_o be_v very_o much_o doubt_v whether_o mineral_n effluvia_fw-la penetrate_v the_o pore_n of_o the_o body_n or_o not_o by_o those_o that_o shall_v know_v that_o the_o fume_n of_o sulphur_n be_v so_o penetrate_v that_o at_o the_o picinino_n of_o teneriff_n they_o blacken_v silver_n in_o the_o pocket_n of_o those_o that_o go_v up_o to_o it_o i_o make_v a_o preparation_n of_o sulphur_n which_o emit_v effluvia_fw-la so_o powerful_a 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effluviate_a power_n be_v so_o durable_a that_o one_o have_v a_o perfume_a watch_n which_o though_o constant_o wear_v preserve_v its_o scent_n 16_o year_n and_o by_o the_o same_o reason_n can_v perfume_v marble_n quite_o through_o so_o that_o they_o retain_v their_o scent_n a_o long_a time_n but_o before_o i_o leave_v this_o second_o proposition_n it_o be_v requisite_a that_o i_o shall_v take_v notice_n that_o noxious_a effluvia_fw-la may_n cause_n distemper_n not_o only_o by_o respiration_n and_o penetrate_v the_o pore_n of_o our_o body_n but_o by_o impregnate_v the_o water_n make_v use_v of_o for_o prepare_v and_o dilute_v our_o aliment_n without_o any_o sensible_a alteration_n in_o the_o water_n to_o be_v discern_v by_o we_o so_o water_n by_o a_o infusion_n of_o crocus_n metallorum_fw-la become_v emetic_n and_o indeed_o sometime_o those_o effluvia_fw-la be_v so_o numerous_a that_o in_o the_o border_n of_o lancashire_n the_o mud_n in_o a_o ditch_n be_v so_o strong_o impregnate_v with_o subterraneal_a exhalation_n that_o at_o the_o surface_n of_o the_o earth_n or_o water_n they_o will_v take_v fire_n and_o flame_n like_o a_o candle_n but_o beside_o that_o distemper_n may_v be_v propagate_v by_o these_o subtle_a effluvia_fw-la impregnate_v water_n they_o may_v be_v also_o prejudicial_a in_o as_o much_o as_o be_v mix_v with_o the_o nutriment_n of_o plant_n they_o may_v deprave_v their_o juice_n and_o consequent_o make_v they_o unfit_a to_o be_v eat_v and_o that_o mineral_n effluvia_fw-la may_n in_o a_o great_a measure_n deprave_v and_o influence_n the_o substance_n of_o plant_n in_o their_o growth_n be_v confirm_v by_o some_o who_o have_v note_v that_o oak_n grow_v in_o ground_n which_o abound_v with_o vitriolate_a mine_n be_v much_o more_o heavy_a and_o solid_a than_o other_o and_o these_o effluvia_fw-la be_v sometime_o so_o numerous_a and_o crowd_v into_o the_o pore_n of_o plant_n as_o not_o to_o be_v overcome_v and_o concoct_v by_o the_o ferment_n of_o the_o plant_n but_o to_o keep_v their_o own_o nature_n for_o i_o have_v observe_v in_o a_o vine_n near_o paris_n several_a marchasitical_a particle_n throughout_o the_o pore_n of_o the_o root_n and_o trunk_n and_o i_o have_v be_v tell_v that_o at_o tockay_n in_o hungary_n the_o very_a kernel_n of_o the_o grape_n be_v as_o if_o it_o be_v gild_n over_o with_o leaf_n gold_n but_o beside_o the_o aforementioned_a way_n by_o which_o our_o body_n may_v be_v affect_v with_o noxious_a effluvium_n we_o may_v not_o a_o little_a suffer_v by_o the_o deprave_a humour_n which_o some_o animal_n we_o feed_v upon_o be_v nourish_v by_o and_o which_o vitiate_v their_o body_n primary_o and_o secondary_o we_o as_o from_o what_o have_v be_v say_v it_o appear_v that_o subterraneal_a effluvia_fw-la may_n cause_n distemper_n so_o it_o may_v not_o be_v amiss_o to_o take_v notice_n that_o possible_o in_o some_o measure_n mineral_n effluvia_fw-la may_v prevent_v distemper_n for_o it_o be_v observe_v that_o several_a part_n of_o scotland_n be_v free_a from_o ague_n and_o that_o very_o hot_a and_o large_a region_n in_o the_o east-indies_n be_v rare_o trouble_v with_o the_o plague_n nor_o be_v it_o less_o remarkable_a that_o in_o ireland_n the_o air_n be_v impregnate_v with_o such_o sort_n of_o emanation_n as_o prevent_v the_o generation_n of_o any_o venomous_a creature_n to_o which_o i_o shall_v add_v the_o follow_a instance_n from_o beguinus_n in_o his_o own_o word_n who_o say_v dignum_fw-la admiratione_n est_fw-la quod_fw-la quamvis_fw-la in_o vicinia_fw-la hydriae_fw-la comitatus_fw-la gloricensis_fw-la ubi_fw-la reperitur_fw-la copiosè_fw-la ☿_o singulis_fw-la fere_n annis_fw-la lues_fw-la pestifera_fw-la grassatur_fw-la illa_fw-la tamen_fw-la semper_fw-la immunis_fw-la ab_fw-la hac_fw-la manere_fw-la soleat_fw-la idque_fw-la viri_fw-la providae_fw-la aetatis_fw-la se_fw-la observasse_fw-la et_fw-la a_o majoribus_fw-la suis_fw-la accepisse_fw-la mihi_fw-la sancte_fw-la confirmarunt_fw-la to_o which_o i_o shall_v add_v further_o that_o the_o learned_a michael_n magerus_n pronounce_v mercury_n a_o antidote_n against_o several_a disease_n and_o particular_o the_o plague_n proposition_n iii_o it_o be_v likely_a 3._o proposition_n 3._o that_o divers_a epidemical_a disease_n be_v in_o great_a part_n produce_v by_o subterraneal_a effluvia_fw-la though_o several_a epidemical_a distemper_n be_v cause_v by_o manifest_a alteration_n in_o sensible_a quality_n of_o the_o air_n yet_o to_o show_v that_o some_o of_o they_o principal_o and_o other_o partly_o depend_v on_o the_o effect_n of_o subterraneal_a effluvia_fw-la i_o shall_v offer_v the_o follow_a consideration_n and_o first_o the_o structure_n and_o disposition_n of_o the_o part_n of_o our_o globe_n which_o be_v not_o much_o below_o the_o surface_n of_o it_o and_o much_o more_o the_o deep_a subterraneal_a region_n be_v so_o plentiful_o stock_v with_o mineral_n substance_n so_o that_o it_o be_v not_o improbable_a but_o that_o subterraneal_a effluvia_fw-la ascend_v thence_o into_o the_o air_n may_v cause_v excessive_a heat_n or_o cold_a or_o some_o other_o manifest_a quality_n and_o consequent_o in_o part_n occasion_n most_o epidemical_a disease_n for_o from_o what_o i_o have_v elsewhere_o show_v it_o not_o only_o appear_v that_o these_o effluvia_fw-la by_o act_v on_o one_o another_o may_v excite_v sudden_a heat_n but_o also_o that_o mineral_n of_o different_a degree_n of_o maturity_n act_v on_o one_o another_o may_v produce_v a_o intense_a cold._n beside_o the_o change_n of_o the_o air_n on_o which_o epidemical_a disease_n depend_v be_v so_o considerable_a and_o instantaneous_a that_o they_o can_v scarce_o be_v attribute_v to_o the_o influence_n of_o the_o sun_n or_o moon_n which_o be_v too_o regular_a and_o constant_a in_o their_o influence_n to_o cause_v such_o anomalous_a effect_n as_o we_o can_v but_o take_v notice_n of_o in_o a_o few_o year_n time_n but_o be_v rather_o cause_v by_o a_o irruption_n of_o subterraneal_a steam_n which_o be_v frequent_o both_o impetuous_a and_o irregular_a and_o though_o some_o attribute_v they_o to_o the_o influence_n of_o the_o
of_o ice_n and_o salt_n 2_o hour_n it_o make_v a_o oblique_a crack_n in_o the_o barrel_n six_o inch_n long_o and_o the_o ice_n be_v take_v out_o seem_v full_a of_o bubble_n but_o very_o small_a one_o and_o the_o like_a success_n we_o have_v with_o another_o barrel_n of_o a_o gun_n who_o muzzle_n and_o touchhole_n be_v stop_v up_o with_o metal_n nor_o have_v we_o less_o success_n when_o we_o bury_v a_o pewter_n bottle_n in_o a_o frigorifick_a mixture_n both_o the_o barrel_n of_o the_o gun_n and_o the_o bottle_n be_v burst_v in_o a_o quarter_n of_o a_o hour_n title_n xii_o experiment_n concern_v a_o new_a way_n of_o estimate_v the_o expansive_a force_n of_o congelation_n and_o of_o high_o compress_v air_n without_o engine_n congelation_n a_o new_a way_n of_o estimate_v the_o expanâ—…e_a force_n of_o congelation_n how_o far_o we_o be_v able_a to_o compress_v the_o air_n by_o the_o incumbent_a weight_n of_o a_o cylinder_n of_o mercury_n we_o have_v else_o where_o show_v but_o to_o reduce_v 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this_o way_n of_o try_v how_o far_o the_o air_n may_v be_v compress_v and_o water_n expanded_a by_o cold_a we_o think_v least_o exceptionable_a because_o the_o pore_n of_o glass_n be_v more_o impervious_a to_o air_n and_o water_n than_o some_o metalline_a vessel_n for_o have_v break_v open_a the_o apex_n of_o the_o stem_n of_o one_o of_o our_o glass-egg_n we_o find_v that_o though_o the_o water_n be_v but_o a_o little_a expanded_a yet_o not_o find_v a_o way_n out_o at_o the_o pore_n of_o the_o glass_n the_o water_n rise_v up_o a_o quarter_n of_o a_o inch._n title_n xiii_o experiment_n and_o observation_n concern_v the_o sphere_n of_o activity_n of_o cold._n cold._n of_o the_o sphere_n of_o activity_n of_o cold._n in_o estimate_v the_o sphere_n of_o activity_n of_o cold_a we_o be_v not_o only_o to_o consider_v the_o degree_n of_o it_o in_o the_o cold_a body_n but_o also_o the_o medium_fw-la through_o which_o it_o be_v to_o pass_v and_o the_o consistence_n and_o texture_n of_o it_o as_o likewise_o the_o instrument_n employ_v to_o receive_v or_o acquaint_v we_o with_o the_o action_n of_o cold_a since_o from_o what_o have_v be_v before_o lay_v down_o it_o appear_v that_o weather-glass_n give_v we_o a_o more_o nice_a account_n of_o the_o degree_n of_o it_o and_o that_o our_o sensory_n may_v mis-inform_a we_o upon_o the_o account_n of_o their_o various_a predisposition_n beside_o the_o sphere_n of_o activity_n may_v be_v vary_v by_o the_o bulk_n of_o the_o cold_a body_n 1._o but_o to_o consider_v the_o sphere_n of_o activity_n of_o small_a piece_n of_o ice_n we_o have_v find_v it_o very_o small_a in_o comparison_n of_o the_o atmosphere_n of_o odorous_a body_n insomuch_o that_o i_o be_o persuade_v we_o can_v have_v no_o sense_n of_o cold_a without_o the_o immediate_a contact_n of_o a_o cold_a body_n since_o ice_n approach_v our_o sensory_a or_o a_o weatherglass_n affect_v neither_o though_o hold_v as_o near_o as_o possible_o they_o may_v without_o touch_v and_o the_o like_a have_v be_v observe_v at_o sea_n where_o in_o foggy_a night_n the_o seaman_n have_v not_o be_v able_a to_o discern_v neighbour_a mountain_n of_o ice_n though_o by_o a_o merchant_n who_o make_v the_o observation_n in_o greenland_n i_o be_o tell_v that_o he_o perceive_v a_o manifest_a access_n of_o cold_a upon_o the_o approach_n of_o a_o float_a piece_n of_o ice_n 2._o and_o i_o be_o tell_v that_o in_o ispahan_n the_o capital_a city_n of_o persia_n the_o ice_n be_v never_o much_o more_o than_o a_o finger_n thick_a they_o usual_o pour_v water_n upon_o it_o which_o as_o it_o run_v over_o the_o ice_n be_v in_o part_n freeze_v by_o which_o mean_n they_o thicken_v the_o ice_n and_o preserve_v it_o in_o proper_a conservatory_n this_o experiment_n have_v be_v try_v in_o england_n by_o pump_v of_o water_n upon_o flake_n of_o ice_n i_o find_v that_o the_o pump-water_n be_v warm_a than_o the_o ice_n thaw_v it_o instead_o of_o increase_v the_o thickness_n of_o it_o and_o though_o here_o in_o england_n water_n pour_v upon_o snow_n promote_v its_o dissolution_n yet_o in_o russia_n and_o muscovy_n i_o be_o tell_v that_o water_n throw_v upon_o snow_n freeze_v it_o which_o they_o therefore_o make_v use_n of_o to_o incrustate_n several_a body_n with_o ice_n yet_o one_o thing_n be_v to_o be_v observe_v that_o general_o at_o the_o same_o time_n the_o sharpness_n of_o the_o air_n be_v so_o violent_a as_o to_o incrustate_n several_a body_n with_o ice_n when_o only_a water_n be_v make_v use_n of_o so_o that_o in_o try_v such_o experiment_n we_o be_v to_o consider_v the_o temperature_n of_o the_o air_n at_o the_o same_o time_n which_o have_v a_o great_a influence_n in_o promote_a or_o vary_v the_o effect_n of_o such_o trial_n 3._o how_o deep_a frost_n penetrate_v into_o water_n and_o earth_n will_v be_v a_o very_a hard_a thing_n to_o determine_v since_o earth_n especial_o may_v be_v more_o or_o less_o dispose_v to_o freeze_v according_a to_o the_o several_a degree_n of_o cold_a and_o its_o duration_n the_o texâ—â—â—…_n of_o the_o earth_n and_o the_o nature_n of_o the_o juice_n dâ—â—â—…ed_v through_o it_o or_o subterraneal_a steam_n whence_o large_a tract_n of_o land_n that_o lie_v over_o some_o mine_n be_v always_o free_a from_o snow_n good_a quantity_n of_o limestone_n be_v near_o the_o surface_n of_o the_o earth_n 4._o but_o though_o it_o be_v so_o difficult_a to_o know_v to_o what_o depth_n frost_n will_v reach_v yet_o that_o we_o may_v contribute_v as_o much_o as_o we_o can_v to_o the_o general_a history_n of_o cold_a we_o shall_v add_v the_o follow_a note_n after_o four_o night_n hard_a frost_n the_o ground_n in_o the_o orchard_n be_v freeze_v about_o 3_o inch_n deep_a and_o in_o the_o
garden_n about_o 2_o after_o ten_o night_n frost_n the_o ground_n in_o the_o garden_n be_v freeze_v about_o 6_o inch_n ½_n and_o that_o in_o the_o orchard_n be_v freeze_v 8_o ½_n or_o more_o eight_o day_n after_o it_o be_v freeze_v about_o a_o foot_n deep_a 5._o a_o pipe_n of_o glass_n 18_o inch_n long_o be_v thrust_v down_o into_o a_o hole_n in_o the_o ground_n the_o surface_n of_o the_o water_n contain_v in_o it_o be_v level_a with_o the_o earth_n the_o next_o morning_n the_o whole_a capacity_n of_o the_o cylinder_n be_v freeze_v 3_o inch_n from_o which_o stick_v of_o ice_n a_o part_n of_o the_o cylinder_n be_v freeze_v 6_o inch_n deep_a but_o the_o rest_n of_o the_o water_n remain_v unfreeze_v the_o ground_n in_o the_o garden_n that_o night_n be_v freeze_v ten_o inch_n deep_a 6._o it_o have_v be_v observe_v that_o in_o moscow_n the_o ground_n in_o a_o garden_n be_v not_o freeze_v above_o two_o foot_n deep_a but_o capt._n james_n say_v in_o charlton-island_n he_o observe_v the_o ground_n freeze_v ten_o foot_n deep_a and_o the_o same_o author_n in_o his_o journal_n p._n 86._o say_v that_o the_o water_n do_v not_o freeze_v natural_o above_o six_o foot_n one_o particular_a referrable_a to_o the_o xiii_o title_n i_o be_o tell_v that_o a_o lee-ward_n of_o great_a bank_n of_o ice_n they_o may_v discover_v they_o by_o the_o access_n of_o cold_a twenty_o league_n title_n fourteen_o experiment_n concern_v the_o different_a medium_n through_o which_o cold_a may_v be_v diffuse_v diffuse_v of_o the_o medium_n through_o which_o cold_a may_v be_v diffuse_v in_o try_v these_o experiment_n we_o be_v to_o take_v notice_n that_o the_o medium_n be_v not_o to_o be_v too_o thick_a since_o from_o experiment_n already_o deliver_v it_o appear_v that_o a_o compact_n medium_fw-la very_o thick_o will_v not_o give_v way_n to_o cold._n 1._o have_v place_v a_o mixture_n of_o snow_n and_o salt_n in_o a_o pipkin_n and_o another_o in_o a_o white_a basin_n glaze_v within_o and_o without_o they_o be_v both_o incrustate_v with_o ice_n and_o that_o cold_a will_v penetrate_v pewter-bottle_n appear_v from_o experiment_n already_o lay_v down_o 2._o have_v cause_v two_o cup_n to_o be_v make_v of_o latin_a or_o plate_n of_o iron_n cover_v over_o with_o tin_n the_o convex_a part_n of_o one_o of_o which_o be_v less_o than_o the_o concave_n of_o the_o other_o and_o the_o less_o have_v a_o broad_a ledge_n by_o the_o help_n of_o which_o it_o rest_v on_o the_o brim_n of_o the_o other_o so_o as_o to_o leave_v a_o interval_n betwixt_o its_o convex_a superficies_n and_o the_o concave_a of_o the_o other_o we_o fill_v that_o interval_n with_o water_n and_o put_v a_o mixture_n of_o ice_n and_o salt_n within_o the_o less_o cup_n and_o on_o the_o outside_n of_o the_o other_o we_o have_v cup_n of_o ice_n make_v of_o the_o enclose_a water_n 2._o the_o learned_a erasmus_n bartholinus_n in_o his_o discourse_n de_fw-fr figura_fw-la nivis_fw-la mention_n a_o experiment_n by_o which_o air_n be_v turn_v into_o water_n in_o the_o midst_n of_o heat_n viz._n ice_n or_o snow_n be_v put_v into_o a_o a_o funnel_n which_o he_o suppose_v refrigerates_n and_o condense_n the_o ambient_fw-la air_n but_o i_o rather_o think_v that_o the_o dew_n which_o he_o suppose_v to_o be_v condense_v air_n be_v make_v up_o of_o moist_a vapour_n swim_v in_o it_o which_o be_v so_o small_a in_o quantity_n that_o have_v suspend_v a_o tunnel_n in_o the_o air_n with_o a_o mixture_n of_o snow_n and_o salt_n which_o be_v much_o more_o refrigerate_v than_o either_o ice_n or_o snow_n by_o themselves_o it_o gather_v but_o a_o very_a small_a quantity_n and_o that_o too_o last_v no_o long_a than_o whilst_o the_o mixture_n be_v dissolve_v beside_o those_o condense_a vapour_n be_v first_o freeze_v before_o they_o drop_v down_o in_o the_o form_n of_o water_n 3._o that_o in_o hermetical_o seal_v glass_n a_o mixture_n of_o snow_n and_o salt_n will_v freeze_v vapour_n on_o the_o outside_n be_v evident_a from_o what_o have_v be_v lay_v down_o but_o that_o cold_a shall_v not_o only_o penetrate_v glass_n but_o afterward_o act_v upon_o water_n in_o vacuo_fw-la be_v a_o little_a more_o strange_a for_o have_v suspend_v a_o tube_n of_o water_n in_o vacuo_fw-la and_z pile_v snow_n and_o ice_n about_o it_o as_o high_a as_o the_o include_v water_n wrought_v it_o work_v upon_o it_o and_o freeze_v it_o from_o the_o top_n to_o the_o bottom_n 4._o but_o what_o be_v yet_o more_o strange_a be_v that_o cold_a will_v act_v through_o a_o evident_o hot_a medium_fw-la for_o drink_v a_o good_a quantity_n of_o mineral_n water_n timely_a in_o the_o morning_n i_o observe_v a_o manifest_a coldness_n through_o the_o muscle_n of_o my_o abdomen_fw-la which_o be_v in_o a_o high_a degree_n remarkable_a in_o a_o gentleman_n who_o drink_v much_o great_a quantity_n 5._o to_o try_v whether_o the_o fluidity_n of_o water_n depend_v on_o a_o congenite_fw-la motion_n in_o the_o part_n of_o it_o or_o whether_o it_o be_v convey_v to_o it_o by_o impulse_n from_o the_o ambient_fw-la air_n we_o provide_v a_o glass-bubble_n about_o the_o size_n of_o a_o walnut_n and_o of_o a_o pear_n like_o shape_n who_o stem_n be_v purposely_o make_v crooked_a and_o suspend_v it_o by_o a_o thread_n in_o oil_n of_o turpentine_n contain_v in_o a_o narrow_a glass_n and_o this_o be_v place_v in_o a_o mixture_n of_o snow_n and_o salt_n though_o the_o oil_n continue_v fluid_a yet_o the_o water_n in_o the_o bubble_n be_v freeze_v and_o when_o we_o go_v to_o take_v it_o out_o the_o bubble_n be_v crack_v the_o great_a part_n subside_v to_o the_o bottom_n of_o the_o mixture_n but_o we_o perceive_v that_o that_o which_o be_v pull_v out_o be_v divide_v by_o a_o line_n through_o the_o middle_n from_o the_o top_n downward_o and_o it_o be_v further_o observable_a in_o this_o trial_n that_o the_o two_o separable_a piece_n of_o ice_n be_v leave_v in_o a_o mixture_n of_o ice_n and_o salt_n for_o 14_o hour_n be_v very_o little_o waste_v the_o like_a success_n we_o have_v with_o a_o bubble_n of_o water_n suspend_v in_o spirit_n of_o wine_n but_o another_o suspend_v in_o sea-salt_n be_v not_o freeze_v at_o all_o nor_o be_v another_o that_o we_o hang_v in_o a_o sharp_a brine_n but_o the_o same_o experiment_n be_v try_v another_o time_n the_o water_n be_v freeze_v both_o in_o the_o bubble_n suspend_v in_o spirit_n of_o wine_n and_o in_o that_o which_o be_v immerse_v in_o the_o strong_a brine_n the_o bottle_n which_o contain_v the_o latter_a be_v crack_v which_o crack_n be_v not_o much_o unlike_o the_o line_n draw_v from_o the_o pole_n of_o a_o globe_n to_o the_o meridian_n reach_v from_o the_o top_n of_o the_o bubble_n downward_o 6._o a_o bubble_n suspend_v with_o water_n in_o it_o in_o a_o glass_n immerse_v in_o snow_n and_o salt_n be_v freeze_v without_o the_o intervention_n of_o any_o liquor_n title_n xv._o experiment_n and_o observation_n concern_v ice_n ice_n concern_v ice_n 1._o though_o in_o the_o east-indies_n it_o have_v be_v think_v strange_a that_o water_n in_o england_n shall_v without_o any_o artificial_a mean_n be_v turn_v into_o a_o consistent_a body_n yet_o it_o be_v relate_v by_o some_o that_o in_o russia_n the_o ice_n on_o the_o contrary_a be_v find_v much_o hard_a than_o we_o 2._o to_o make_v a_o estimate_n of_o the_o cohesion_n of_o the_o part_n of_o ice_n we_o think_v to_o have_v try_v what_o weight_n cylindrical_a piece_n of_o ice_n of_o different_a diameter_n will_v bear_v but_o be_v frustrate_v in_o such_o trial_n we_o try_v how_o much_o weight_n a_o plate_n of_o it_o place_v betwixt_o two_o iron-bar_n will_v bear_v but_o have_v not_o convenient_a weight_n we_o be_v force_v to_o be_v content_a to_o know_v that_o it_o bear_v a_o much_o great_a weight_n than_o one_o can_v suppose_v it_o capable_a of_o 3._o a_o piece_n of_o ice_n 3_o inch_n long_o and_o as_o many_o broad_a and_o about_o 4_o of_o a_o inch_n thick_o be_v lay_v across_o a_o frame_n and_o a_o piece_n of_o iron_n of_o this_o figure_n 7_o have_v a_o scale_n hang_v at_o the_o long_a leg_n the_o horizontal_a leg_n be_v place_v upon_o the_o middle_n of_o the_o ice_n and_o then_o 117_o ounce_n troy-weight_n be_v put_v into_o the_o scale_n when_o the_o iron_n have_v melt_v half_o the_o ice_n through_o on_o one_o side_n and_o a_o three_o part_n of_o the_o other_o the_o weight_n be_v able_a to_o break_v it_o the_o experiment_n be_v repeat_v when_o the_o piece_n of_o ice_n be_v 2_o inch_n and_o a_o half_a long_o it_o bear_v 17_o pound_n averdupois_n and_o 48_o ounce_n troy-weight_n when_o the_o iron_n on_o one_o side_n have_v melt_v ⅔_n and_o on_o the_o other_o ½_n part_v of_o the_o thickness_n of_o it_o 4._o plate_n of_o ice_n be_v lay_v upon_o a_o stool_n
in_o both_o successive_o and_o the_o salt_n itself_o be_v cast_v into_o water_n scarce_o make_v it_o sensible_o cold_a nor_o do_v the_o glass_n wherein_o this_o salt_n be_v keep_v disclose_v any_o remarkable_a degree_n of_o coldness_n and_o even_o the_o frigorifick_a mixture_n itself_o when_o the_o ebullition_n be_v over_o appear_v not_o cold_a than_o common_a water_n in_o a_o night_n time_n so_o that_o the_o coldness_n depend_v pure_o upon_o the_o texture_n of_o the_o ferment_a liquor_n and_o to_o this_o i_o shall_v add_v that_o though_o i_o make_v use_v of_o a_o spirit_n that_o be_v draw_v off_o at_o the_o same_o time_n with_o this_o salt_n and_o which_o in_o the_o judgement_n of_o my_o sense_n appear_v to_o be_v of_o the_o same_o kind_n yet_o instead_o of_o a_o cold_a ebullition_n it_o produce_v a_o lukewarm_a heat_n and_o to_o these_o i_o shall_v further_o subjoin_v that_o though_o the_o liquor_n above_o mention_v will_v produce_v a_o cold_a ferment_n with_o the_o dry_a salt_n yet_o with_o the_o spirit_n it_o grow_v warm_a though_o some_o of_o the_o same_o frigorifick_a spirit_n keep_v warm_a by_o the_o fire_n till_o the_o liquor_n in_o the_o weatherglass_n rise_v yet_o upon_o the_o inject_n of_o some_o of_o the_o dry_a salt_n it_o will_v be_v manifest_o depress_v nay_o though_o the_o spirit_n and_o salt_n be_v both_o warm_a yet_o upon_o their_o mixture_n they_o will_v produce_v a_o manifest_a coldness_n and_o to_o this_o experiment_n i_o shall_v add_v that_o salt_n of_o tartar_n mix_v with_o spirit_n of_o vinegar_n produce_v upon_o their_o ebullition_n a_o degree_n of_o coldness_n great_a than_o that_o of_o water_n and_o when_o a_o weatherglass_n be_v remove_v out_o of_o water_n into_o it_o a_o hour_n after_o the_o ferment_n the_o spirit_n be_v depress_v about_o half_a a_o inch_n though_o salt_n of_o pot-ash_n mix_v with_o spirit_n of_o vinegar_n produce_v heat_n as_o appear_v by_o the_o same_o weatherglass_n successive_o immerse_v in_o either_o chap._n xii_o of_o the_o mechanical_a origin_n or_o production_n of_o heat_n heat_n of_o the_o mechanical_a production_n of_o heat_n heat_v be_v a_o quality_n who_o nature_n seem_v to_o consist_v in_o a_o mechanical_a motion_n of_o the_o part_n of_o the_o body_n say_v to_o be_v hot_a it_o may_v be_v requisite_a to_o note_v that_o the_o three_o follow_a condition_n be_v necessary_a in_o modify_v that_o motion_n first_o that_o the_o motion_n be_v more_o rapid_a than_o in_o body_n bare_o fluid_a so_o water_n become_v hot_a by_o a_o increase_n of_o the_o motion_n of_o its_o part_n which_o argue_v their_o vehement_a motion_n by_o dissolve_v butter_n and_o rise_v in_o the_o form_n of_o vapour_n which_o effect_n be_v more_o conspicuous_a as_o the_o degree_n of_o motion_n be_v great_a or_o less_o another_o instance_n to_o show_v that_o the_o part_n of_o hot_a water_n be_v in_o a_o more_o violent_a agitation_n than_o those_o of_o cold_a be_v in_o water_n cast_v upon_o a_o hot_a iron_n for_o they_o present_o acquire_v such_o a_o additional_a motion_n from_o that_o hot_a body_n that_o it_o hiss_v and_o boil_v yield_v steam_n copious_o but_o a_o strong_a instance_n of_o the_o vehement_a agitation_n of_o the_o part_n of_o hot_a body_n be_v in_o actual_a flame_n since_o they_o move_v so_o impetuous_o as_o to_o dissolve_v and_o shatter_v whatever_o lie_v in_o their_o way_n a_o second_o condition_n requisite_a to_o render_v a_o body_n hot_a be_v that_o the_o motion_n of_o its_o part_n be_v various_o determine_v which_o variety_n of_o determination_n be_v apparent_a in_o fire_n which_o produce_v the_o same_o effect_n on_o the_o same_o body_n whatsoever_o be_v their_o situation_n in_o respect_n of_o that_o fire_n so_o a_o red_a coal_n melt_v wax_n whether_o hold_v above_o below_z or_o on_o one_o side_n of_o it_o and_o that_o a_o various_o determine_v motion_n be_v requisite_a appear_v if_o we_o observe_v that_o the_o rapid_a motion_n of_o water_n in_o a_o river_n which_o be_v only_o one_o way_n contribute_v not_o to_o the_o increase_n of_o its_o heat_n a_o three_o requisite_a be_v that_o the_o part_n in_o such_o a_o motion_n shall_v be_v very_a minute_n so_o as_o to_o be_v insensible_a since_o it_o be_v manifest_a that_o though_o sand_n be_v put_v into_o a_o violent_a motion_n it_o acquire_v not_o a_o heat_n by_o it_o this_o account_n of_o heat_n be_v consider_v it_o will_v appear_v that_o a_o body_n may_v become_v hot_a as_o many_o way_n as_o it_o be_v capable_a of_o have_v its_o part_n put_v into_o such_o a_o motion_n to_o illustrate_v which_o observation_n i_o shall_v subjoin_v some_o instance_n of_o the_o production_n of_o heat_n several_a way_n as_o first_o by_o a_o effusion_n of_o oil_n of_o vitriol_n upon_o salt_n of_o tartar_n aq._n fortis_fw-la upon_o silver_n but_o to_o pass_v over_o these_o common_a instance_n i_o shall_v proceed_v to_o some_o not_o so_o frequent_o know_v have_v first_o take_v notice_n of_o the_o heat_n which_o succeed_v a_o effusion_n of_o cold_a water_n upon_o quicklime_n which_o phaenomenon_n though_o it_o be_v common_o hold_v to_o be_v a_o effect_n of_o a_o antiperistasis_n upon_o the_o enclosure_n of_o the_o lime_n in_o cold_a water_n yet_o that_o the_o effect_n be_v produce_v by_o another_o cause_n appear_v since_o the_o like_a succeed_v if_o hot_a water_n be_v make_v use_n of_o instead_o of_o cold_a and_o further_o because_o though_o oil_n of_o turpentine_n be_v pour_v on_o it_o cold_a no_o such_o effect_n follow_v experiment_n i._n though_o helmont_n ascribe_v the_o incalescence_n of_o quicklime_n upon_o a_o affusion_n of_o water_n to_o a_o conflict_n of_o a_o alkalizate_n and_o a_o acid_a salt_n set_v at_o liberty_n by_o be_v dissolve_v in_o the_o water_n yet_o since_o no_o such_o acid_n appear_v to_o be_v latent_fw-la in_o quicklime_n the_o account_n be_v unsatisfactory_a for_o i_o may_v as_o well_o suppose_v a_o acid_n latent_fw-la in_o other_o alkaly_n in_o as_o much_o as_o salt_n of_o tartar_n mix_v with_o water_n either_o in_o the_o palm_n of_o one_o hand_n or_o in_o a_o vial_n afford_v a_o sensible_a heat_n experiment_n two_o iii_o iu_o other_o think_v that_o the_o cause_n of_o the_o heat_n of_o quicklime_n proceed_v from_o some_o fiery_a empyrumatical_a atom_n lodge_v in_o the_o substance_n of_o the_o stone_n when_o calcine_v and_o set_v at_o liberty_n in_o the_o form_n of_o effluvia_fw-la but_o this_o hypothesis_n be_v not_o without_o some_o difficulty_n since_o no_o such_o heat_n succeed_v a_o affusion_n of_o water_n upon_o minium_n or_o crocus_n martis_n per_fw-la se_fw-la though_o their_o increase_n of_o weight_n argue_v that_o they_o be_v stuff_v with_o fiery_a and_o metalline_a particle_n to_o which_o i_o shall_v add_v that_o i_o know_v two_o liquor_n which_o be_v several_a time_n separate_v and_o reconjoin_v without_o addition_n do_v at_o each_o congress_n acquire_v a_o sensible_a heat_n so_o salt_n of_o tartar_n several_a time_n free_v from_o water_n water_n the_o effect_n of_o a_o mixture_n of_o salt_n of_o tartar_n and_o water_n will_v produce_v heat_n when_o mix_v again_o with_o that_o water_n which_o show_v that_o the_o violence_n of_o the_o fire_n be_v not_o requisite_a to_o impress_v upon_o all_o calcine_v body_n that_o will_v heat_n with_o water_n what_o pass_v for_o a_o empyreum_fw-la and_o this_o phaenomenon_n i_o be_o apt_a to_o believe_v proceed_v from_o a_o disposition_n of_o the_o texture_n of_o the_o salt_n be_v stock_v with_o store_n of_o igneous_a part_n which_o upon_o a_o ingress_n of_o water_n press_v into_o the_o pore_n of_o the_o body_n by_o the_o weight_n of_o the_o atmosphere_n be_v apt_a to_o break_v the_o texture_n of_o that_o body_n and_o to_o put_v they_o in_o motion_n so_o as_o to_o produce_v a_o sensible_a heat_n and_o that_o the_o ferment_n depend_v upon_o the_o peculiar_a texture_n of_o the_o salt_n i_o be_o persuade_v and_o a_o constipation_n of_o the_o pore_n of_o it_o since_o sal-armon_a dissolve_v in_o water_n and_o boil_v to_o a_o dry_a salt_n be_v not_o so_o much_o impregnate_v with_o fiery_a part_n as_o to_o cause_v a_o heat_n upon_o its_o mixture_n with_o water_n again_o but_o a_o considerable_a degree_n of_o cold_a and_o though_o one_o will_v expect_v a_o great_a cognation_n betwixt_o the_o particle_n of_o fire_n adhere_v to_o quicklime_n and_o spirit_n of_o wine_n whole_o inflammable_a yet_o the_o latter_a pour_v upon_o the_o former_a do_v not_o produce_v any_o sensible_a incalescence_n or_o dissolution_n of_o it_o and_o when_o this_o spirit_n be_v soak_v into_o it_o i_o pour_v water_n upon_o it_o without_o perceive_v the_o least_o heat_n or_o the_o lime_n break_v till_o within_o a_o few_o hour_n after_o so_o that_o the_o spirit_n be_v suck_v into_o the_o most_o capacious_a pore_n of_o the_o lime_n and_o associate_a with_o the_o water_n render_v it_o more_o unfit_a to_o
mace_n as_o with_o oil_n of_o cinnamon_n yet_o upon_o further_a trial_n i_o find_v that_o it_o succeed_v and_o to_o what_o have_v be_v deliver_v on_o this_o subject_a i_o shall_v further_o add_v when_o the_o noctiluca_n be_v whole_o consume_v to_o a_o caput_n mortuum_n that_o as_o soon_o as_o it_o be_v turn_v with_o the_o other_o side_n upward_o it_o will_v immediate_o take_v fire_n afresh_o the_o work_n of_o the_o honourable_a robert_n boil_v esq_n epitomise_v book_n v._o part_n i._n chap._n i._n new_a experiment_n of_o the_o positive_a or_o relative_n levity_n of_o body_n under_o water_n body_n argument_n against_o the_o positive_a levity_n of_o emerge_a body_n when_o any_o body_n that_o be_v light_a in_o specie_fw-la than_o water_n be_v immerse_v in_o it_o and_o upon_o the_o removal_n of_o that_o force_n which_o depress_v it_o it_o rise_v again_o it_o be_v usual_o attribute_v to_o the_o positive_a levity_n of_o that_o body_n but_o since_o the_o instance_n of_o wood_n emerge_v be_v that_o which_o be_v usual_o offer_v as_o a_o argument_n to_o it_o i_o shall_v answer_v that_o wood_n be_v a_o body_n full_a of_o pore_n except_o some_o which_o will_v not_o swim_v in_o water_n and_o upon_o that_o account_n specifical_o light_a than_o water_n the_o water_n by_o the_o pressure_n of_o that_o which_o be_v incumbent_n get_v betwixt_o the_o superficies_n of_o the_o vessel_n and_o the_o body_n immerse_v cause_v it_o to_o rise_v the_o water_n which_o succeed_v it_o in_o its_o place_n make_v a_o more_o powerful_a pressure_n against_o it_o than_o its_o specific_a gravity_n enable_v it_o to_o resist_v and_o that_o body_n specifical_o light_a than_o water_n will_v be_v thus_o buoy_v up_o by_o it_o will_v appear_v from_o the_o hydrostatical_a paradox_n hereafter_o to_o be_v lay_v down_o and_o though_o it_o be_v usual_o urge_v that_o the_o body_n imimmerse_v be_v too_o close_o contiguous_a to_o the_o bottom_n of_o the_o vessel_n for_o the_o water_n to_o insinuate_v themselves_o betwixt_o yet_o from_o the_o follow_a experiment_n it_o will_v appear_v that_o be_v the_o contiguous_a surface_n so_o close_o the_o positive_a levity_n of_o the_o wood_n will_v not_o be_v able_a to_o raise_v it_o for_o two_o black_a marble_n be_v so_o exact_o polish_v as_o to_o be_v as_o contiguous_a as_o possible_o they_o may_v we_o tie_v a_o bladder_n full_a of_o air_n to_o the_o uppermost_a and_o then_o cause_v they_o both_o to_o be_v immerse_v in_o water_n the_o positive_a levity_n of_o the_o bladder_n will_v not_o cause_v the_o bladder_n to_o rise_v but_o as_o soon_o as_o by_o a_o servant_n the_o uppermost_a marble_n be_v gradual_o slip_v half_a off_o the_o polish_a surface_n of_o the_o low_a the_o water_n which_o before_o be_v not_o able_a to_o insinuate_v itself_o betwixt_o the_o surface_n of_o the_o contiguous_a marble_n and_o to_o separate_v they_o present_o cause_v the_o bladder_n to_o rise_v with_o a_o considerable_a swiftness_n and_o force_n above_o the_o surface_n of_o the_o water_n which_o event_n that_o it_o do_v not_o depend_v on_o nature_n abhorrency_n of_o a_o vacuum_n be_v evident_a since_o that_o will_v have_v a_o equal_a force_n when_o the_o polish_a surface_n be_v whole_o contiguous_a the_o power_n of_o nature_n abhorrency_n of_o a_o vacuum_n be_v hold_v by_o its_o assertor_n to_o be_v unlimited_a and_o that_o it_o be_v not_o the_o heaviness_n of_o the_o upper_a marble_n nor_o want_v of_o lightness_n in_o the_o include_v appear_v since_o when_o the_o surface_v of_o the_o polish_a marble_n be_v not_o contiguous_a the_o bladder_n be_v able_a to_o lift_v up_o a_o weight_n of_o six_o or_o seven_o pound_n beside_o the_o marble_n and_o to_o show_v that_o the_o bladder_n may_v be_v raise_v by_o the_o pressure_n of_o the_o water_n according_a to_o the_o law_n of_o hydrostaticks_n usual_o buoy_v up_o body_n specifical_o light_a than_o itself_o have_v press_v out_o the_o great_a part_n of_o the_o air_n contain_v in_o a_o bladder_n i_o tie_v a_o piece_n of_o iron_n to_o it_o and_o immerse_v it_o in_o a_o wide-mouthed_a glass_n which_o be_v so_o deep_a that_o the_o bladder_n be_v total_o immerse_v and_o yet_o not_o far_o below_o the_o surface_n of_o the_o water_n and_o this_o be_v convey_v into_o our_o pneumatick_a engine_n when_o by_o exhaust_v the_o air_n part_n of_o the_o pressure_n be_v take_v off_o the_o air_n in_o the_o bladder_n expand_v itself_o and_o take_v up_o more_o room_n in_o the_o water_n and_o consequent_o become_v so_o much_o more_o specifical_o light_a and_o the_o resistance_n of_o the_o water_n which_o endeavour_v to_o buoy_v it_o up_o become_v respective_o great_a it_o be_v together_o with_o the_o suspend_v weight_n raise_v to_o the_o surface_n of_o the_o water_n and_o continue_v there_o till_o the_o outward_a air_n be_v let_v in_o again_o and_o then_o the_o air_n be_v contract_v into_o its_o former_a dimension_n it_o subside_v again_o in_o which_o experiment_n the_o positive_a levity_n of_o the_o air_n be_v not_o vary_a but_o only_o its_o relative_a and_o respective_a weight_n in_o reference_n to_o its_o proportion_n of_o water_n and_o that_o rarefaction_n alter_v not_o the_o positive_a levity_n of_o body_n may_v appear_v from_o the_o follow_a experiment_n for_o have_v oil_v a_o bladder_n and_o when_o the_o air_n be_v express_v tie_v it_o to_o the_o neck_n of_o a_o vial_n i_o find_v that_o in_o the_o exhaust_a receiver_n though_o the_o air_n in_o the_o vial_n be_v so_o far_o expanded_a as_o to_o fill_v the_o whole_a capacity_n of_o the_o bladder_n yet_o the_o vial_n neither_o rose_n high_o nor_o subsidede_v low_a when_o the_o air_n be_v draw_v out_o or_o let_v in_o again_o chap._n ii_o new_a experiment_n about_o the_o pressure_n of_o the_o air_n be_v spring_n on_o body_n under_o water_n water_n the_o pressure_n of_o the_o air_n be_v spring_n on_o body_n under_o water_n to_o show_v that_o the_o spring_n and_o weight_n of_o the_o air_n have_v manifest_a effect_n on_o body_n separate_v from_o a_o immediate_a contact_n by_o the_o interposition_n of_o water_n i_o shall_v subjoin_v the_o follow_a experiment_n experiment_n ii_o we_o lute_v the_o neck_n of_o a_o vial_n which_o be_v capable_a of_o contain_v above_o a_o point_n of_o water_n upon_o that_o pipe_n which_o convey_v air_n out_o of_o the_o receiver_n into_o the_o pump_n which_o be_v do_v we_o whelm_v over_o this_o receiver_n our_o large_a one_o and_o have_v pour_v in_o a_o sufficient_a quantity_n of_o water_n we_o close_v it_o up_o with_o the_o turn-key_n that_o no_o air_n may_v get_v out_o that_o way_n and_o then_o the_o air_n be_v exhaust_v out_o of_o the_o vial_n if_o fly_v into_o a_o great_a many_o piece_n the_o side_n of_o the_o glass_n be_v not_o able_a to_o resist_v the_o pressure_n of_o the_o air_n that_o lie_v upon_o the_o surface_n of_o the_o water_n in_o the_o large_a receiver_n experiment_n ii_o the_o great_a part_n of_o the_o air_n be_v squeeze_v out_o of_o a_o bladder_n and_o the_o bladder_n tie_v to_o a_o weight_n which_o keep_v it_o something_o below_o the_o surface_n of_o water_n contain_v in_o a_o wide-mouthed_a glass_n this_o be_v convey_v into_o a_o receiver_n the_o air_n in_o the_o bladder_n expanded_a as_o the_o air_n on_o the_o superficies_n of_o the_o water_n be_v extract_v experiment_n iii_o a_o brass_n plug_n be_v fit_v to_o a_o cylinder_n which_o be_v close_v with_o a_o plate_n of_o the_o same_o metal_n at_o one_o end_n we_o put_v a_o bladder_n half_o blow_v into_o the_o cylinder_n and_o place_v the_o plug_n upon_o it_o with_o a_o weight_n of_o a_o conical_a figure_n upon_o that_o we_o pour_v so_o much_o water_n into_o the_o receiver_n in_o which_o it_o be_v place_v as_o cover_v the_o top_n of_o the_o conical_a weight_n but_o leave_v the_o ring_n which_o be_v fix_v to_o the_o top_n of_o it_o and_o which_o be_v fasten_v to_o the_o turn-key_n by_o the_o help_n of_o a_o string_n and_o thing_n be_v thus_o order_v when_o the_o air_n above_o the_o water_n be_v considerable_o exhaust_v the_o spring_n of_o the_o air_n in_o the_o cylinder_n raise_v the_o plugg_n and_o weight_n a_o considerable_a height_n though_o the_o whole_a weight_n amount_v to_o twenty_o eight_o pound_n experiment_n iu._n a_o glass_n vial_n be_v close_v with_o cement_n and_o immerse_v in_o a_o deep_a brass_n cylinder_n of_o water_n this_o be_v convey_v into_o our_o receiver_n and_o when_o the_o air_n which_o press_v upon_o the_o water_n be_v draw_v off_o the_o vial_n in_o the_o bottom_n of_o the_o water_n be_v violent_o shatter_v in_o piece_n by_o the_o spring_n of_o the_o include_v air_n for_o want_v of_o a_o sufficient_a pressure_n of_o the_o air_n incumbent_a on_o the_o water_n to_o resist_v the_o force_n of_o that_o spring_n experiment_n v._n to_o show_v that_o the_o expansion_n
or_o rarefaction_n of_o air_n increase_v not_o the_o positive_a levity_n of_o air_n we_o suspend_v a_o bladder_n half_n full_a of_o air_n with_o a_o counterpoise_n at_o a_o balance_n in_o our_o receiver_n and_o though_o when_o the_o air_n be_v exhaust_v the_o bladder_n be_v sufficient_o distend_v yet_o it_o seem_v to_o retain_v the_o same_o weight_n whether_o dilate_a or_o contract_v chap._n iii_o new_a experiment_n concern_v a_o effect_n of_o the_o vary_a weight_n of_o the_o atmosphere_n upon_o some_o body_n in_o the_o water_n communicate_v in_o the_o transaction_n of_o feb._n 24.1672_o 3._o water_n of_o the_o effect_n of_o the_o differ_a weight_n of_o the_o atmosphere_n on_o body_n under_o water_n consider_v that_o the_o pore_n of_o most_o liquor_n be_v plentiful_o stock_v with_o airy_a particle_n and_o that_o upon_o that_o account_n the_o atmosphere_n may_v according_a to_o its_o several_a degree_n of_o weight_n have_v considerable_a effect_n on_o they_o i_o cause_v three_o small_a glass-bubble_n with_o slender_a stem_n to_o be_v blow_v which_o be_v so_o equal_o poise_v in_o water_n by_o their_o weight_n that_o a_o little_a thing_n will_v make_v they_o emerge_n or_o sink_v and_o i_o observe_v that_o these_o be_v put_v into_o water_n contain_v in_o a_o wide-mouthed_a glass_n sometime_o they_o will_v emerge_n and_o sometime_o subside_o and_o sometime_o emerge_n again_o as_o the_o atmosphere_n vary_a in_o weight_n or_o degree_n of_o heat_n and_o cold._n and_o it_o be_v easy_a to_o observe_v that_o when_o the_o heat_n of_o the_o air_n raise_v one_o of_o these_o bubble_n the_o heat_n of_o the_o sunbeam_n will_v so_o rarisie_n the_o water_n include_v in_o they_o as_o to_o cause_v some_o of_o it_o to_o get_v out_o upon_o which_o the_o bubble_n emerge_v but_o when_o those_o beam_n be_v intercept_v the_o water_n be_v condense_v and_o get_v into_o the_o bubble_n again_o it_o will_v subside_o but_o when_o their_o subside_v depend_v on_o the_o weight_n of_o the_o atmosphere_n if_o the_o mercury_n in_o the_o baroscope_n stand_v high_a the_o heat_n of_o the_o sun_n will_v not_o raise_v the_o bubble_n n._n b._n 1._o that_o the_o bubble_n not_o be_v all_o equal_o poise_v sometime_o one_o and_o sometime_o two_o will_v rise_v as_o the_o air_n be_v heavy_a or_o light_a and_o consequent_o capable_a of_o affect_v the_o light_a only_a or_o all_o 2._o the_o success_n do_v not_o always_o answer_v for_o when_o the_o subside_v depend_v on_o some_o occult_a cause_n they_o will_v continue_v there_o as_o if_o some_o airy_a part_n have_v insinuate_v themselves_o into_o the_o water_n 3._o the_o fit_a time_n for_o these_o experiment_n and_o in_o which_o they_o best_o succeed_v be_v in_o the_o spring_n the_o air_n be_v more_o subject_a to_o vary_v in_o its_o weight_n as_o well_o as_o other_o thing_n chap._n iu._n new_a experiment_n about_o the_o differ_a pressure_n of_o heavy_a solid_n and_o fluid_n fluid_n of_o the_o different_a pressure_n of_o solid_n and_o 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deliquium_fw-la instead_o of_o water_n and_o spirit_n of_o wine_n instead_o of_o oil_n of_o turpentine_n these_o liquor_n be_v not_o dispose_v to_o mingle_v with_o one_o another_o and_o instead_o of_o fair_a water_n 06_o we_o may_v make_v use_n of_o a_o filter_v solution_n of_o sea-salt_n when_o the_o other_o be_v not_o easy_o get_v and_o when_o we_o have_v a_o mind_n to_o vary_v the_o experiment_n we_o may_v make_v use_n of_o oil_n of_o turpentine_n along_o with_o the_o other_o two_o and_o by_o depress_v a_o tube_n into_o they_o with_o water_n in_o the_o bottom_n exhibit_v very_o please_a phaenomena_n paradox_n ii_o that_o a_o light_a fluid_n may_v gravitate_fw-la or_o weigh_v upon_o a_o heavy_a paradox_n 2_o the_o truth_n of_o this_o be_v evident_a since_o all_o body_n have_v a_o tendency_n towards_o the_o centre_n by_o which_o they_o be_v always_o dispose_v to_o press_v downward_o though_o sometime_o they_o have_v a_o respective_a levity_n as_o when_o a_o piece_n of_o wood_n 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about_o a_o foot_n above_o it_o in_o the_o tube_n the_o weight_n of_o the_o incumbent_a water_n will_v depress_v it_o but_o if_o that_o water_n be_v gradual_o take_v off_o the_o bubble_n will_v present_o emerge_n if_o it_o shall_v be_v ask_v why_o in_o these_o trial_n i_o do_v not_o make_v use_n of_o oil_n of_o tartar_n per_fw-la deliquium_fw-la instead_o of_o water_n i_o shall_v answer_v that_o in_o such_o slender_a pipe_n as_o the_o first_o experiment_n be_v make_v in_o as_o the_o oil_n of_o tartar_n flow_v down_o one_o side_n the_o oil_n of_o turpentine_n will_v rise_v on_o the_o other_o which_o make_v i_o wonder_v that_o mounseur_fw-fr paschall_n shall_v teach_v that_o if_o a_o tube_n fill_v with_o mercury_n be_v immerse_v fourteen_o foot_n under_o water_n if_o the_o tube_n be_v fourteen_o foot_n long_o the_o mercury_n will_v not_o whole_o run_v out_o but_o continue_v to_o the_o height_n of_o a_o foot_n in_o the_o bottom_n of_o it_o and_o i_o the_o more_o wonder_n at_o it_o since_o probable_o the_o impetus_fw-la will_v make_v it_o descend_v and_o since_o the_o like_a will_v not_o succeed_v with_o much_o more_o favourable_a circumstance_n betwixt_o oil_n of_o turpentine_n and_o oil_n of_o tartar_n paradox_n iii_o paradox_n 3_o that_o if_o a_o body_n contiguous_a to_o the_o water_n be_v altogether_o or_o in_o part_n low_o than_o the_o high_a level_n of_o the_o say_a water_n the_o low_a part_n of_o the_o body_n will_v be_v press_v upward_o by_o the_o water_n that_o touch_v it_o beneath_o this_o may_v be_v prove_v from_o what_o have_v be_v deliver_v under_o the_o first_o paradox_n for_o wherever_o a_o imaginary_a surface_n be_v beneath_o the_o real_a one_o the_o weight_n of_o the_o water_n be_v incumbent_n on_o all_o other_o part_n of_o the_o same_o superficies_n that_o part_n on_o which_o the_o immersed_a body_n chance_v to_o lean_v must_v have_v a_o proportionable_a endeavour_n upward_o and_o if_o that_o endeavour_n be_v great_a than_o the_o specific_a gravity_n of_o the_o immersed_a body_n be_v able_a to_o resist_v than_o it_o be_v buoy_v up_o and_o though_o the_o gravity_n of_o the_o immersed_a body_n be_v so_o great_a as_o to_o overpower_v the_o tendency_n of_o the_o water_n upward_o yet_o the_o tendency_n of_o that_o water_n be_v not_o therefore_o to_o be_v deny_v for_o as_o much_o as_o it_o in_o some_o measure_n resist_v the_o subside_v of_o that_o body_n and_o this_o may_v be_v confirm_v by_o the_o experiment_n try_v in_o the_o second_o figure_n for_o as_o more_o oil_n be_v externa_o pour_v on_o the_o water_n be_v impel_v and_o buoy_v up_o in_o the_o pipe_n by_o the_o subjacent_a oil_n which_o can_v not_o be_v if_o the_o oil_n do_v not_o press_v against_o it_o beneath_o and_o even_o when_o the_o water_n and_o oil_n be_v in_o a_o aequilibrium_fw-la the_o latter_a press_n upward_o in_o as_o much_o as_o it_o resist_v the_o descent_n of_o the_o water_n out_o of_o the_o tube_n and_o the_o truth_n of_o this_o proposition_n be_v equal_o true_a whether_o we_o suspend_v oil_n in_o water_n or_o water_n in_o oil_n and_o that_o the_o water_n make_v a_o resistance_n to_o body_n that_o descend_v in_o it_o 4._o see_v plate_n 2._o fig._n 4._o will_v appear_v from_o the_o follow_a scheme_n for_o suppose_v the_o pipe_n e_o f_o to_o contain_v oil_n specifical_o heavy_a than_o water_n and_o when_o the_o oil_n and_o water_n without_o be_v in_o a_o aequilibrium_fw-la the_o pipe_n be_v raise_v drop_n of_o oil_n will_v fall_v out_o but_o much_o more_o slow_o than_o in_o the_o open_a air_n where_o if_o the_o drop_n g_z be_v not_o specifical_o heavy_a than_o the_o water_n it_o will_v not_o break_v the_o imaginary_a surface_n of_o the_o water_n h_o i._n but_o further_a it_o not_o only_o from_o hence_o appear_v that_o since_o as_o long_o as_o the_o two_o liquor_n be_v in_o aequilibrium_fw-la they_o be_v not_o able_a to_o remove_v each_o other_o out_o of_o their_o place_n but_o from_o hence_o we_o may_v infer_v that_o a_o liquor_n of_o a_o equal_a specific_a gravity_n with_o water_n be_v place_v in_o any_o part_n of_o that_o liquor_n will_v remain_v in_o the_o place_n assign_v but_o to_o illustrate_v what_o we_o have_v say_v of_o water_n obstruct_v the_o descent_n of_o body_n heavy_a than_o itself_o i_o shall_v add_v that_o if_o twelve_o ounce_n of_o lead_n be_v counterpoise_v in_o the_o air_n when_o the_o lead_n be_v let_v down_o below_o the_o surface_n of_o the_o water_n the_o scale_n in_o the_o air_n will_v manifest_o preponderate_v which_o show_v that_o the_o water_n hinder_v the_o descent_n of_o the_o other_o and_o the_o resistance_n of_o fluid_n to_o the_o low_a superficies_n of_o body_n may_v be_v further_o confirm_v by_o observe_v that_o body_n specifical_o light_a than_o
peculiar_a modification_n of_o ray_n of_o light_n on_o the_o superficies_n of_o body_n different_a from_o each_o other_o in_o other_o quality_n experiment_n vi._n have_v put_v into_o a_o glass-vessel_n a_fw-fr oculus_fw-la mundi_fw-la who_o diameter_n be_v about_o a_o three_o part_n of_o a_o inch_n the_o colour_n of_o which_o be_v white_a and_o its_o figure_n convex_a by_o degree_n the_o whole_a be_v turn_v brown_a and_o in_o nine_o minute_n time_n be_v take_v out_o of_o the_o water_n be_v semidiaphanous_a which_o be_v a_o gain_n put_v into_o the_o water_n and_o after_o a_o little_a less_o than_o half_a a_o hour_n take_v out_o again_o be_v almost_o as_o yellow_a and_o diaphanous_a as_o amber_n but_o be_v for_o some_o time_n expose_v to_o the_o air_n it_o begin_v gradual_o to_o grow_v opacous_a and_o to_o be_v mark_v in_o several_a place_n with_o white_a streak_n which_o by_o degree_n expand_v themselves_o unite_v so_o as_o to_o make_v the_o whole_a surface_n of_o the_o stone_n of_o a_o cream_n white_a experiment_n vii_o remarkable_a observation_n about_o hurricane_n hurricane_n observatious_a about_o hurricane_n i_o be_o inform_v by_o the_o governor_n of_o the_o bermuda_n island_n that_o these_o be_v the_o foreruner_n of_o they_o first_o at_o some_o distance_n from_o the_o shore_n the_o sea_n will_v swell_v second_o the_o water_n about_o a_o day_n after_o will_v beat_v violent_o against_o the_o shore_n and_o adjacent_a rock_n which_o can_v neither_o be_v attribute_v to_o wind_n or_o tide_n or_o any_o other_o cause_n beside_o which_o it_o will_v sometime_o on_o a_o sudden_a invade_v the_o shore_n successive_o as_o sudden_o subside_v again_o without_o any_o manifest_a cause_n where_o it_o be_v observable_a that_o as_o the_o encroachment_n upon_o the_o shore_n be_v great_a the_o recess_n of_o the_o water_n be_v proportionable_a three_o a_o unpleasant_a smell_n in_o the_o air_n will_v precede_v the_o hurricane_a four_o long_o and_o visible_a streak_n appear_v in_o the_o 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to_o leave_v they_o as_o thin_a as_o a_o piece_n of_o paper_n and_o line_v with_o a_o white_a substance_n which_o seem_v to_o be_v some_o of_o the_o alkali_n of_o the_o glass_n and_o sand_n corrode_v by_o the_o saline_n spirit_n of_o the_o menstruum_fw-la and_o coagulate_v with_o they_o into_o this_o odd_a kind_n of_o concrete_a and_o this_o wrought_v no_o high_a than_o the_o liquor_n contain_v in_o the_o glass_n and_o beside_o this_o i_o have_v another_o vial_n corrode_v by_o a_o distil_a liquor_n of_o vitriol_n which_o contain_v more_o phlegm_n than_o oil_n and_o to_o this_o relation_n i_o shall_v add_v that_o a_o pound_n of_o dantzick_n vitriol_n and_o a_o pound_n of_o sea-salt_n the_o one_o calcine_v light_o and_o the_o other_o decrepitate_v be_v distil_v in_o a_o well_o coated_a retort_n by_o degree_n of_o fire_n give_v at_o the_o last_o a_o very_a strong_a one_o when_o the_o vessel_n be_v take_v off_o we_o find_v that_o the_o heat_n have_v here_o and_o there_o melt_v it_o and_o that_o the_o flux_v caput_fw-la mortuum_n have_v corrode_v the_o glass_n fetch_v off_o film_n from_o it_o and_o those_o part_n which_o do_v not_o appear_v to_o the_o eye_n manifest_o waste_v seem_v by_o their_o brittleness_n to_o have_v be_v penetrate_v so_o that_o their_o texture_n be_v spoil_v by_o the_o saline_n and_o vitriolate_a particle_n prop._n ii_o common_a glass_n be_v not_o ordinary_o permeable_a by_o chemical_a liquor_n though_o strong_a and_o subtle_a nor_o by_o the_o direct_o visible_a or_o odorable_a expiration_n of_o body_n though_o absolute_o speak_v it_o be_v permeable_a to_o some_o corporeal_a substance_n and_o first_o it_o be_v manifest_a not_o only_o that_o several_a spirituous_a liquor_n and_o menstruum_n may_v be_v keep_v in_o glass_n vessel_n without_o sweat_v through_o they_o but_o even_o distil_v in_o they_o and_o i_o have_v find_v that_o neither_o salt_n of_o tartar_n will_v lend_v by_o be_v hold_v in_o a_o glass_n bubble_n in_o the_o water_n nor_o will_v sal-armoniac_a penetrate_v it_o so_o as_o to_o make_v its_o way_n out_o but_o it_o be_v to_o be_v consider_v that_o some_o circumstance_n may_v vary_v these_o observation_n as_o when_o the_o texture_n of_o glass_n be_v too_o lax_n and_o open_v or_o when_o the_o body_n be_v vehement_o agitate_a with_o heat_n or_o be_v too_o subtle_a and_o have_v a_o certain_a congruity_n with_o the_o pore_n of_o the_o glass_n for_o i_o have_v see_v a_o sort_n of_o glass_n so_o soft_a that_o not_o only_o hot_a liquor_n but_o moderate_o corrosive_n will_v work_v upon_o it_o and_o i_o have_v hear_v that_o some_o sort_n of_o glass_n be_v apt_a to_o be_v prejudice_v by_o corrosive_a liquor_n and_o i_o be_v tell_v by_o one_o that_o he_o several_a time_n observe_v gold_n to_o penetrate_v the_o pore_n of_o glass_n and_o i_o have_v observe_v fume_n to_o make_v their_o way_n through_o the_o pore_n of_o ordinary_a glass_n upon_o distil_v of_o spirit_n of_o hartshorn_n with_o a_o strong_a fire_n and_o that_o the_o 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vary_v its_o colour_n as_o if_o something_o in_o the_o air_n be_v successive_o communicate_v to_o it_o and_o recede_v again_o and_o to_o these_o other_o instance_n may_v be_v bring_v from_o what_o may_v be_v observe_v in_o paint_v glass_n for_o the_o pigment_n be_v lay_v upon_o the_o glass_n and_o that_o place_v upon_o a_o bed_n of_o lime_n and_o then_o continue_v in_o a_o violent_a heat_n the_o pore_n of_o the_o class_n will_v be_v so_o open_v as_o either_o to_o imbibe_n the_o part_n of_o the_o pigment_n or_o to_o vitrifie_v and_o mix_v with_o it_o and_o i_o have_v find_v that_o by_o lay_v prepare_v silver_n upon_o glass_n and_o place_v that_o upon_o live_v coal_n when_o it_o be_v neal_v a_o while_n by_o give_v it_o a_o sufficient_a degree_n of_o heat_n the_o glass_n will_v acquire_v a_o yellow_a and_o almost_o a_o golden_a colour_n which_o be_v not_o to_o be_v wash_v off_o the_o way_n of_o prepare_v this_o silver_n be_v not_o always_o the_o same_o the_o glass-painter_n usual_o add_v to_o it_o antimony_n yellow_a okre_n or_o the_o like_a but_o since_o the_o colour_n proceed_v from_o the_o penetration_n of_o the_o silver_n into_o the_o pore_n of_o the_o glass_n i_o usual_o make_v use_v of_o the_o powder_n of_o silver_n calcine_v by_o burn_a sulphur_n upon_o thin_a plate_n and_o i_o have_v often_o colour_a glass_n bare_o by_o the_o use_n of_o leave_n of_o silver_n lay_v upon_o the_o surface_n of_o the_o glass_n and_o moisten_v with_o something_o to_o keep_v it_o from_o fly_v away_o and_o i_o have_v often_o observe_v that_o though_o the_o glass_n betwixt_o and_o the_o light_n appear_v yellow_a yet_o be_v hold_v from_o it_o it_o appear_v blue_a which_o be_v a_o confirmation_n of_o what_o we_o have_v infer_v from_o the_o variation_n of_o colour_n in_o a_o tincture_n of_o lignum_fw-la nephriticum_fw-la viz._n that_o they_o may_v be_v solve_v by_o mecharical_a principle_n and_o that_o the_o colour_n of_o glass_n tinge_v proceed_v from_o a_o incorporation_n of_o the_o part_n of_o a_o pigment_n with_o it_o though_o they_o penetrate_v not_o the_o whole_a substance_n but_o thing_fw-mi the_o superficies_n as_o i_o observe_v in_o glass_n plate_n which_o be_v part_n of_o the_o window_n of_o st._n paul_n church_n before_o it_o be_v burn_v may_v be_v urge_v since_o the_o part_n of_o the_o silver_n may_v be_v wrought_v on_o by_o the_o fix_a salt_n in_o the_o glass_n and_o afford_v different_a colour_n according_a to_o the_o difference_n of_o the_o body_n that_o work_v upon_o they_o as_o copper_n with_o spirit_n of_o urine_n give_v a_o deep_a blue_n with_o spirit_n of_o salt_n a_o fair_a green_n and_o with_o aqua_fw-la fortis_fw-la a_o colour_n partake_v of_o both_o and_o in_o make_v glass_n of_o lead_n with_o minium_n and_o white_a sand_n or_o crystal_n the_o glass_n will_v be_v of_o a_o amethystine_a colour_n but_o if_o you_o add_v a_o due_a proportion_n of_o calcine_v copper_n the_o metal_n will_v give_v it_o a_o good_a green_n so_o as_o to_o pass_v for_o no_o bad_a eâ—nerâ—uld_n and_o i_o remember_v that_o distil_v some_o gold_n in_o a_o retort_n amalgame_v with_o such_o mercury_n as_o will_v grow_v hot_a with_o it_o in_o the_o cold_a the_o matter_n do_v before_o it_o fly_v away_o perfect_o stain_v a_o inch_n in_o the_o diameter_n of_o the_o bottom_n of_o the_o glass_n with_o a_o colour_n which_o hold_v from_o the_o light_n appear_v like_o that_o of_o the_o better_a sort_n of_o turquoise_n but_o when_o interpose_v between_o the_o window_n and_o the_o eye_n appear_v of_o a_o some_o what_o golden_a colour_n and_o gold_n incorporate_v with_o mercury_n and_o keep_v in_o digestion_n when_o the_o fire_n be_v once_o very_o vehement_a it_o burst_v the_o vessel_n and_o fly_v away_o but_o tinge_v the_o low_a part_n of_o the_o glass_n quite_o through_o with_o a_o glorious_a red_a colour_n not_o inferior_a to_o that_o of_o ruby_n chap._n viii_o of_o the_o porousness_n of_o animal_n body_n body_n of_o the_o porosity_n of_o animal_n body_n the_o 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that_o not_o to_o intimate_v that_o a_o body_n may_v have_v many_o similar_v quality_n in_o respect_n of_o another_o body_n and_o yet_o distinct_a operation_n on_o a_o three_o substance_n i_o say_v not_o to_o intimate_v that_o there_o may_v be_v a_o considerable_a difference_n betwixt_o volatile_a salt_n or_o spirit_n as_o they_o be_v common_o prepare_v and_o when_o prepare_v as_o they_o may_v by_o reiterated_a rectification_n and_o other_o way_n of_o depuration_n by_o a_o dextrous_a chemist_n to_o bring_v they_o to_o a_o great_a degree_n of_o purity_n and_o simplicity_n a_o great_a degree_n i_o say_v because_o it_o may_v be_v difficult_a to_o bring_v they_o to_o a_o absolute_a purity_n since_o unheeded_a commixture_n may_v be_v make_v upon_o the_o account_n of_o some_o corpuscle_n of_o fire_n with_o the_o body_n they_o work_v upon_o and_o that_o there_o be_v a_o manifest_a difference_n betwixt_o spirit_n of_o human_a blood_n and_o other_o alkaly_n as_o spirit_n of_o urine_n and_o hartshorn_n be_v evident_a to_o several_a people_n who_o though_o they_o abhor_v the_o odour_n of_o spirit_n of_o blood_n yet_o they_o will_v with_o pleasure_n hold_v their_o nose_n a_o great_a while_n over_o spirit_n of_o urine_n and_o salarmoniack_a and_o though_o from_o a_o due_a proportion_n of_o spirit_n of_o urine_n or_o salarmoniack_a with_o spirit_n of_o salt_n i_o have_v get_v a_o salt_n which_o shoot_v into_o the_o shape_n of_o that_o of_o urine_n or_o salarmoniack_a yet_o i_o have_v seldom_o if_o ever_o obtain_v a_o salt_n of_o the_o like_a shape_n from_o a_o mixture_n of_o the_o spirit_n of_o humane_a blood_n with_o that_o of_o common_a salt_n for_o though_o upon_o a_o evaporation_n of_o the_o superfluous_a moisture_n the_o salt_n will_v coagulate_v together_o yet_o the_o concretion_n seem_v confuse_v and_o not_o of_o the_o regular_a shape_n of_o those_o salt_n result_v from_o a_o mixture_n of_o the_o spirit_n of_o sea-salt_n with_o urinous_a spirit_n and_o helmont_n tell_v we_o that_o the_o spirit_n of_o human_a blood_n will_v cure_v epilepsy_n which_o spirit_n of_o urine_n will_v not_o do_v title_n v._o of_o the_o quantity_n of_o spirit_n contain_v in_o human_a blood_n whether_o accompany_v with_o its_o serum_n or_o dry_v this_o be_v not_o easy_a to_o determine_v since_o some_o man_n blood_n be_v much_o more_o phlegmatic_a than_o other_o or_o more_o serous_a which_o may_v of_o itself_o be_v more_o spirituous_a according_a to_o the_o complexion_n age_n sex_n etc._n etc._n of_o the_o person_n that_o bleed_v twelve_o ounce_n of_o healthy_a human_a blood_n afford_v we_o seven_o ounce_n and_o a_o half_a of_o phlegm_n and_o consequent_o about_o four_o ounce_n and_o a_o half_a of_o dry_a stuff_n and_o have_v distil_v in_o a_o retort_n in_o a_o sand_n furnace_n seven_o ounce_n of_o well_o dry_a blood_n we_o obtain_v about_o a_o eight_o part_n of_o spirit_n which_o though_o not_o rectify_v leave_v in_o the_o receiver_n and_o viol_n i_o keep_v it_o in_o a_o good_a deal_n of_o volatile_a salt_n undissolved_a which_o a_o phlegmatic_a liquor_n will_v not_o have_v do_v and_o if_o spirit_n of_o blood_n be_v but_o a_o salt_n and_o phlegm_n unite_v we_o may_v well_o suppose_v that_o human_a blood_n yield_v a_o far_o great_a proportion_n of_o spirit_n than_o this_o since_o from_o the_o seven_o ounce_n of_o dry_a blood_n we_o obtain_v about_o five_o drachm_n of_o volatile_a salt_n which_o have_v it_o be_v unite_a with_o a_o due_a quantity_n of_o phlegm_n it_o will_v probable_o have_v afford_v we_o near_o two_o ounce_n more_o of_o a_o liquor_n deserve_v the_o name_n of_o spirit_n title_n vi_o of_o the_o consistence_n and_o specific_a gravity_n of_o human_n blood_n a_o compact_a body_n which_o in_o the_o air_n weigh_v fifty_o eight_o grain_n and_o in_o water_n weigh_v six_o grain_n and_o ¾_n in_o rectify_v spirit_n of_o human_a blood_n weigh_v but_o five_o grain_n and_o ¼_n and_o what_o be_v considerable_a be_v that_o a_o piece_n of_o amber_n will_v not_o subside_o to_o the_o bottom_n but_o keep_v float_v upon_o the_o top_n and_o if_o plunge_v into_o it_o will_v emerge_n again_o as_o for_o the_o degree_n of_o the_o fluidity_n of_o the_o blood_n or_o its_o immunity_n from_o tenaciousness_n though_o divers_a other_o alkalizated_a liquor_n as_o oil_n of_o tartar_n per_fw-la deliquium_fw-la fix_v nitre_n resolve_v per_fw-la deliquium_fw-la a_o solution_n of_o pot-ash_n be_v sensible_o unctuous_a and_o but_o languid_o fluid_a yet_o i_o observe_v that_o spirit_n of_o human_a blood_n do_v not_o appear_v more_o unctuous_a than_o common_a water_n and_o whereas_o it_o be_v common_o find_v that_o as_o liquor_n be_v more_o spirituous_a so_o the_o bubble_n raise_v by_o agitation_n soon_a disappear_v i_o have_v observe_v that_o the_o spirit_n of_o blood_n be_v almost_o as_o soon_o clear_a of_o they_o as_o spirit_n of_o wine_n and_o when_o some_o drop_n of_o it_o be_v let_v fall_v they_o manifest_o appear_v less_o than_o drop_v of_o water_n to_o discover_v the_o subtlety_n of_o the_o part_n of_o human_a blood_n we_o so_o prepare_v common_a water_n by_o infusion_n make_v in_o it_o without_o heat_n that_o by_o put_v one_o single_a drop_n of_o our_o rectify_a spirit_n of_o human_a blood_n into_o ten_o ounce_n and_o four_o scruple_n of_o the_o prepare_a water_n and_o light_o shake_v the_o viol_n there_o appear_v throughout_o the_o liquor_n a_o manifest_a colour_n whereof_o no_o degree_n be_v discernible_a before_o so_o that_o it_o disperse_v itself_o through_o a_o thousand_o time_n as_o much_o water_n and_o produce_v a_o manifest_a change_n in_o the_o colour_n of_o it_o and_o though_o this_o computation_n be_v make_v upon_o the_o common_a supposition_n that_o a_o drop_v of_o water_n weigh_v a_o grain_n yet_o though_o it_o weigh_v more_o a_o little_a the_o difference_n be_v recompense_v since_o have_v drop_v ten_o drop_n of_o common_a water_n into_o a_o common_a balance_n well_o adjust_v and_o have_v likewise_o drop_v ten_o drop_n of_o this_o spirit_n we_o find_v that_o the_o last_o be_v not_o only_o less_o in_o bulk_n but_o light_a since_o they_o weigh_v not_o above_o four_o grain_n so_o that_o the_o proportion_n to_o which_o it_o extend_v itself_o may_v be_v say_v to_o be_v as_o one_o to_o betwixt_o 4000_o and_o 5000_o and_o this_o subtlety_n of_o the_o part_n of_o the_o spirit_n of_o human_a blood_n will_v appear_v to_o be_v yet_o much_o great_a if_o we_o consider_v that_o some_o part_n even_o of_o this_o drop_n must_v needs_o be_v phlegm_n title_n vii_o of_o the_o odour_n taste_n colour_n and_o transparency_n of_o the_o spirit_n of_o human_n blood_n that_o the_o spirit_n of_o human_a blood_n be_v in_o respect_n of_o some_o liquor_n potential_o cold_a since_o it_o refrigerate_v they_o and_o with_o reference_n to_o other_o potential_o hot_a since_o be_v mix_v with_o they_o it_o render_v they_o hot_a may_v appear_v from_o the_o follow_a instance_n for_o have_v put_v the_o low_a end_n of_o a_o hermetical_o seal_v weatherglass_n into_o a_o slender_a cylindrical_a glass_n we_o pour_v as_o much_o moderate_o strong_a spirit_n of_o blood_n into_o it_o as_o cover_v the_o ball_n and_o then_o drop_v on_o that_o liquor_n some_o good_a spirit_n of_o salt_n upon_o which_o ensue_v a_o conflict_n accompany_v with_o a_o noise_n bubble_n and_o heat_v which_o make_v the_o spirit_n of_o wine_n present_o ascend_v above_o two_o inch_n and_o a_o half_a which_o experiment_n seem_v to_o be_v the_o more_o remarkable_a because_o several_a other_o volatile_a alkaly_n be_v mix_v with_o acid_n produce_v a_o notable_a degree_n of_o coldness_n and_o whereas_o i_o have_v several_a time_n find_v by_o trial_n that_o the_o spirit_n of_o verdigrease_n will_v with_o volatile_a salt_n of_o salarmoniack_a or_o urine_n produce_v a_o real_a coldness_n this_o spirit_n of_o verdigrease_n be_v mix_v in_o the_o small_a cylindrical_a glass_n with_o spirit_n of_o blood_n moderate_o strong_a not_o only_o produce_v a_o hiss_a noise_n and_o store_n of_o bubble_n but_o a_o actual_a heat_n upon_o which_o the_o liquor_n in_o the_o thermoscope_n ascend_v above_o a_o inch_n and_o a_o half_a though_o both_o the_o liquor_n employ_v amount_v not_o to_o above_o two_o spoonful_n title_n viii_o of_o the_o dissolutive_a power_n of_o spirit_n of_o human_n blood_n that_o this_o spirit_n be_v not_o only_o a_o good_a medicine_n for_o several_a disease_n but_o be_v also_o a_o good_a menstruum_fw-la will_v appear_v from_o the_o follow_a instance_n and_o first_o have_v pour_v spirit_n of_o human_a blood_n upon_o crude_a copper_n in_o about_o a_o quarter_n of_o a_o hour_n the_o liquor_n be_v tinge_v blueish_a which_o colour_n grow_v high_a and_o high_o till_o in_o some_o hour_n it_o be_v deep_o ceruleous_a and_o to_o this_o i_o shall_v add_v that_o have_v drop_v a_o drop_n or_o two_o of_o spirit_n of_o blood_n upon_o a_o piece_n of_o
believe_v that_o there_o be_v such_o by_o the_o common_a observation_n of_o a_o great_a many_o learned_a man_n and_o able_a physician_n and_o to_o favour_v this_o common_a observation_n viz._n that_o there_o be_v such_o substance_n which_o have_v peculiar_a effect_n which_o can_v be_v ascribe_v to_o no_o manifest_a quality_n i_o shall_v urge_v the_o effect_n of_o poison_n take_v in_o a_o very_a inconsiderable_a quantity_n and_o i_o be_o tell_v that_o something_o that_o fall_v from_o a_o spider_n into_o a_o man_n eye_n cause_v he_o to_o lose_v his_o sight_n to_o which_o i_o shall_v add_v that_o spider_n be_v observe_v to_o kill_v fly_n much_o soon_o than_o cut_v off_o their_o head_n or_o run_v they_o through_o with_o pin_n will_v do_v it_o to_o which_o instance_n we_o may_v add_v that_o most_o poison_n be_v cure_v by_o appropriate_v antidote_n and_o as_o perfume_n cause_v ill_a symtom_n in_o many_o histerick_n woman_n so_o the_o fume_n of_o feather_n burn_v relieve_v they_o and_o i_o have_v find_v that_o the_o smell_n of_o spirit_n of_o hartshorn_n or_o salarmoniack_a have_v recover_v people_n make_v sick_a by_o fragrant_a odour_n but_o beyond_o all_o other_o argument_n be_v experience_n for_o galen_n tell_v we_o that_o the_o ash_n of_o a_o burn_a craw-fish_n will_v cure_v the_o bite_n of_o a_o mad_a dog_n and_o that_o their_o effect_n be_v much_o more_o considerable_a if_o to_o ten_o part_n of_o burn_a craw-fish_n we_o add_v five_o of_o gentian_n and_o one_o of_o frankincense_n and_o diascorides_n commend_v they_o against_o the_o same_o disease_n that_o the_o pergamenian_a do_v and_o though_o the_o sting_n of_o scorpion_n usual_o produce_v very_o acute_a pain_n and_o formidable_a symtom_n yet_o the_o mischief_n be_v easy_o remedy_v either_o by_o crush_a the_o body_n of_o the_o scorpion_n upon_o the_o hurt_a or_o by_o anoint_v the_o part_n with_o oil_n of_o scorpion_n though_o the_o liquor_n appear_v not_o to_o have_v any_o sensible_a quality_n to_o which_o their_o efficacy_n may_v be_v ascribe_v and_o to_o these_o instance_n i_o may_v add_v that_o verginian_a snake-weed_n cure_v the_o sting_n of_o a_o rattle_n snake_n and_o the_o jesuit_n powder_n be_v a_o specific_a in_o ague_n and_o though_o it_o be_v argue_v against_o the_o virtue_n of_o specific_a medicine_n that_o they_o be_v alter_v by_o the_o ferment_n of_o the_o stomach_n and_o other_o strainer_n of_o different_a texture_n and_o that_o a_o great_a deal_n be_v carry_v off_o by_o excrement_n or_o be_v assimilate_v and_o convert_v into_o the_o substance_n of_o our_o body_n yet_o to_o these_o thing_n it_o may_v be_v answer_v that_o not_o only_a ointment_n plaster_n periapta_n etc._n etc._n work_n upon_o the_o mass_n of_o humour_n but_o even_o those_o medicine_n which_o be_v allow_v to_o work_v by_o manifest_a quality_n perform_v what_o they_o do_v upon_o the_o account_n of_o their_o particle_n alterer_v and_o different_o dispose_v the_o humour_n of_o our_o body_n and_o in_o do_v of_o that_o they_o be_v liable_a to_o the_o same_o objection_n offer_v against_o specific_a medicine_n beside_o it_o be_v observable_a that_o rhubarb_n will_v thing_fw-mi the_o urine_n of_o those_o that_o take_v a_o considerable_a do_v and_o there_o be_v a_o fruit_n call_v prickle_a pear_n in_o the_o english_a american_n colonies_n which_o pass_v by_o urine_n so_o much_o unaltered_a that_o the_o people_n think_v when_o stranger_n to_o it_o that_o they_o piss_v blood_n and_o elaterium_n so_o much_o impregnate_v the_o milk_n of_o a_o nurse_n that_o it_o will_v purge_v the_o child_n that_o take_v it_o and_o i_o remember_v that_o in_o the_o confine_n of_o savoy_n and_o switzerland_n when_o the_o cattle_n feed_v on_o a_o herb_n call_v wild_a garlic_n the_o butter_n will_v sensible_o taste_v of_o it_o and_o in_o ireland_n they_o have_v a_o kind_n of_o seafowl_n which_o feed_v upon_o fish_n which_o be_v so_o little_o alter_v as_o to_o make_v some_o question_n whether_o it_o be_v flesh_n or_o fish_n and_o though_o it_o be_v further_o urge_v against_o specific_a medicine_n that_o so_o little_a be_v disperse_v through_o the_o habit_n of_o the_o body_n that_o it_o can_v have_v no_o considerable_a effect_n yet_o their_o efficacy_n may_v answer_v for_o their_o smallness_n in_o quantity_n for_o i_o be_o tell_v that_o the_o negro_n have_v a_o poison_n which_o though_o it_o work_v slow_a be_v nevertheless_o mortal_a and_o this_o they_o conceal_v under_o the_o nail_n of_o their_o finger_n and_o drop_v into_o the_o aliment_n of_o those_o they_o have_v spite_n to_o and_o i_o know_v a_o vegetable_a substance_n half_o a_o grain_n of_o which_o will_v be_v too_o violent_a a_o purgative_n and_o sometime_o mortal_a and_o though_o english_a viper_n be_v look_v upon_o as_o no_o poison_n yet_o by_o the_o wound_n of_o a_o single_a tooth_n i_o know_v one_o who_o be_v take_v with_o violent_a vomit_n to_o which_o may_v be_v add_v the_o terrible_a effect_n of_o scorpion_n in_o the_o island_n of_o java_n and_o we_o see_v that_o several_a woman_n otherwise_o strong_a and_o lusty_a will_v fall_v into_o swoon_v upon_o the_o smell_n of_o musk_n or_o civet_n though_o all_o the_o effluvia_fw-la that_o affect_v they_o will_v not_o amount_v to_o the_o hundred_o part_n of_o a_o grain_n and_o by_o effluvia_fw-la perhaps_o not_o more_o plentiful_a these_o symptom_n may_v be_v again_o remove_v and_o the_o portion_n of_o crocus_n metallorum_fw-la in_o wine_n or_o of_o quicksilver_n in_o water_n though_o small_a have_v very_o considerable_a effect_n so_o that_o when_o a_o child_n who_o obstinate_o refuse_v all_o medicine_n drink_v small_a beer_n impregnate_v with_o mercury_n he_o be_v much_o relieve_v in_o a_o violent_a worm_n fever_n proposition_n that_o their_o operation_n may_v be_v mechanical_o solve_v be_v prove_v in_o the_o follow_a proposition_n have_v say_v thus_o much_o of_o specific_a medicine_n i_o shall_v now_o proceed_v to_o lay_v down_o some_o thing_n in_o the_o follow_a proposition_n to_o show_v that_o they_o be_v mechanical_o explicate_v but_o first_o i_o shall_v premise_v that_o i_o will_v not_o have_v the_o body_n to_o be_v consider_v as_o a_o dull_a lump_n of_o matter_n but_o as_o a_o admirable_o contrive_v mechanical_a engine_n consist_v of_o part_n exquisite_o contrive_v and_o adapt_v to_o their_o particular_a uses_n and_o that_o the_o effect_n of_o body_n upon_o it_o may_v be_v consider_v in_o reference_n to_o that_o disposition_n of_o their_o part_n this_o be_v premise_v there_o be_v no_o need_n to_o think_v that_o all_o specific_v act_n after_o the_o same_o manner_n or_o the_o same_o way_n and_o sometime_o the_o specific_a may_v operate_v by_o a_o joint_n and_o in_o a_o compound_n way_n but_o to_o proceed_v to_o the_o follow_a proposition_n prop._n i._o i._n prop._n i._n sometime_o the_o specific_a medicine_n may_v cure_v by_o discuss_v or_o resolve_v the_o morbific_a matter_n and_o thereby_o make_v it_o fit_a for_o expulsion_n by_o the_o great_a common_a shore_n of_o the_o body_n and_o the_o pore_n of_o the_o skin_n thus_o the_o blood_n impregnate_v with_o medicinal_a particle_n may_v act_v upon_o gross_a humour_n which_o obstruct_v the_o part_n and_o be_v not_o to_o be_v resolve_v without_o specific_a solvent_n which_o by_o their_o figure_n and_o agitation_n may_v get_v in_o betwixt_o and_o separate_v those_o viscous_a part_n so_o blood_n impregnate_v with_o salarmoniack_a dissolve_v copper_n not_o by_o manifest_a quality_n but_o by_o virtue_n of_o the_o shape_n bulk_n solidity_n and_o other_o mechanical_a affection_n of_o its_o part_n which_o concur_v to_o enable_v it_o to_o disjoin_v the_o part_n of_o a_o body_n of_o such_o a_o determinate_a texture_n and_o indeed_o there_o be_v not_o only_o a_o great_a number_n of_o menstruum_n very_o different_a from_o one_o another_o but_o their_o effect_n evident_o appear_v not_o to_o depend_v upon_o manifest_a quality_n since_o it_o several_a time_n happen_v that_o a_o menstruum_fw-la less_o acid_n may_v dissolve_v this_o or_o that_o body_n which_o a_o much_o strong_a menstruum_fw-la will_v not_o work_v upon_o so_o water_n will_v dissolve_v the_o white_a of_o a_o egg_n which_o spirit_n of_o wine_n will_v coagulate_v and_o so_o will_v spirit_n of_o salt_n and_o oil_n of_o tartar_n itself_o and_o thus_o dephlegm_v spirit_n of_o urine_n will_v more_o ready_o dissolve_v file_n of_o copper_n than_o spirit_n of_o vitriol_n and_o yet_o the_o latter_a will_v speedy_o dissolve_v crab_n eye_n though_o the_o other_o leave_v they_o untouched_a so_o quicksilver_n will_v dissolve_v gold_n in_o the_o cold_a though_o aqua_fw-la fortis_fw-la assist_v by_o heat_n leave_v it_o untouched_a yet_o aqua_n fortis_fw-la will_v dissolve_v iron_n and_o quicksilver_n will_v not_o and_o brimstone_n will_v be_v dissolve_v by_o common_a oil_n though_o not_o by_o aqua_fw-la fortis_fw-la and_o i_o know_v a_o liquor_n of_o which_o one_o may_v safe_o drink_v a_o wine_n