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water_n little_a put_v sugar_n 6,277 5 10.6573 5 true
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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A28944 Certain physiological essays and other tracts written at distant times, and on several occasions by the honourable Robert Boyle ; wherein some of the tracts are enlarged by experiments and the work is increased by the addition of a discourse about the absolute rest in bodies. Boyle, Robert, 1627-1691. 1669 (1669) Wing B3930; ESTC R17579 210,565 356

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fruitless_a observation_n make_v at_o several_a time_n that_o i_o can_v detect_v any_o of_o these_o solary_a spot_n which_o have_v during_o many_o month_n at_o least_o appear_v so_o much_o seldome_a than_o it_o seem_v they_o do_v before_o that_o i_o remember_v a_o most_o ingenious_a professor_n of_o astronomy_n excellent_o well_o furnish_v with_o dioptrical_a glass_n do_v about_o that_o time_n complain_v to_o i_o that_o for_o i_o know_v not_o how_o long_o he_o have_v not_o be_v able_a to_o see_v the_o sun_n spot_v and_o as_o for_o the_o faculae_fw-la that_o be_v write_v of_o as_o such_o ordinary_a phaenomena_n i_o must_v profess_v to_o you_o pyrophilus_n that_o a_o multitude_n of_o observation_n make_v with_o good_a telescope_n at_o several_a place_n and_o time_n whilst_o the_o sun_n be_v spot_v have_v scarce_o make_v i_o see_v above_o once_o any_o of_o the_o look_v for_o brightness_n and_o as_o the_o nature_n of_o the_o material_a object_n wherewith_o the_o mathematician_n be_v 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of_o the_o instrument_n employ_v by_o they_o and_o on_o this_o occasion_n i_o can_v omit_v that_o sober_a confession_n and_o advertisement_n that_o i_o meet_v with_o in_o the_o noble_a tycho_n who_o have_v lay_v out_o beside_o his_o time_n and_o industry_n much_o great_a sum_n of_o money_n on_o instrument_n than_o any_o man_n we_o have_v hear_v of_o in_o latter_a time_n deserve_v to_o be_v listen_v to_o on_o this_o theme_n concern_v which_o he_o have_v among_o other_o thing_n the_o follow_a passage_n facile_a say_v he_o lapsus_fw-la aliquis_fw-la penè_fw-la insensibilis_fw-la in_o instrumentis_fw-la etiam_fw-la majoribus_fw-la conficiendis_fw-la subrepit_fw-la 133._o qui_fw-la inter_fw-la observandum_fw-la aliquot_fw-la scrùpulorum_fw-la primorum_fw-la jacturam_fw-la faciat_fw-la insuper_fw-la si_fw-la ipse_fw-la situs_fw-la &_o tractandi_fw-la modus_fw-la non_fw-la tamabsoluta_fw-la norma_fw-la perficiatur_fw-la ut_fw-la nihil_fw-la prorsus_fw-la desideretur_fw-la intolerabilis_fw-la 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world_n can_v be_v sure_a to_o make_v his_o observation_n at_o sea_n within_o ten_o minute_n of_o the_o precise_a truth_n no_o not_o say_v he_o upon_o the_o sand_n itself_o within_o one_o minute_n of_o it_o but_o instead_o of_o acquaint_v you_o with_o what_o may_v be_v draw_v from_o the_o write_n of_o our_o hydrographer_n to_o prove_v that_o his_o assertion_n be_v rather_o modest_a than_o too_o bold_a i_o shall_v observe_v that_o the_o observation_n even_o of_o skilful_a mathematician_n may_v hold_v so_o little_a or_o disagree_v so_o much_o when_o they_o pretend_v to_o give_v we_o the_o determinate_a measure_n of_o thing_n that_o i_o remember_v of_o three_o very_a eminent_a modern_a mathematician_n who_o have_v take_v upon_o they_o by_o their_o experiment_n to_o determine_v the_o proportion_n betwixt_o air_n and_o water_n the_o one_o make_v not_o the_o weight_n of_o water_n to_o exceed_v above_o a_o 150_o time_n that_o of_o air_n the_o other_o reckon_v water_n to_o be_v between_o 13_o and_o 14_o hundred_o time_n and_o the_o three_o no_o less_o than_o 10000_o time_n the_o heavy_a not_o to_o mention_v a_o modern_a and_o famous_a writer_n or_o two_o who_o have_v be_v so_o mistake_v as_o to_o think_v that_o the_o weight_n of_o the_o water_n in_o comparison_n of_o the_o air_n be_v i_o know_v not_o how_o much_o under-reckoned_a even_o by_o this_o last_o overbold_a estimate_n and_o if_o i_o have_v leisure_n i_o can_v annex_v a_o experiment_n partly_o statical_a and_o relate_v to_o the_o weight_n of_o the_o air_n which_o though_o we_o make_v divers_a time_n in_o a_o hour_n yet_o we_o miss_v of_o the_o like_a success_n twice_o as_o often_o in_o the_o same_o hour_n without_o be_v able_a to_o know_v beforehand_o whether_o the_o experiment_n will_v succeed_v within_o some_o pound_n weight_n but_o of_o this_o more_o perhaps_o elsewhere_o the_o end_n pyrophilus_n which_o we_o have_v propose_v to_o ourselves_o in_o set_v down_o the_o thing_n by_o we_o deliver_v in_o this_o and_o the_o former_a essay_n be_v principal_o two_o and_o first_o we_o desire_v that_o the_o instance_n we_o have_v give_v you_o of_o the_o contingency_n of_o experiment_n may_v make_v you_o think_v yourself_o oblige_v to_o try_v those_o experiment_n very_o careful_o and_o more_o than_o once_o upon_o which_o you_o mean_v to_o build_v considerable_a superstructure_n either_o theorical_a or_o practical_a and_o to_o think_v it_o unsafe_a to_o rely_v too_o much_o upon_o single_a experiment_n especial_o when_o you_o have_v to_o deal_v in_o mineral_n for_o many_o to_o their_o ruin_n have_v find_v that_o what_o they_o at_o first_o look_v upon_o as_o a_o happy_a mineral_n experiment_n have_v prove_v in_o the_o issue_n the_o most_o unfortunate_a they_o ever_o make_v and_o i_o remember_v that_o the_o most_o experience_a mineralist_n i_o have_v hitherto_o be_v acquaint_v with_o though_o his_o skill_n have_v be_v rather_o gainful_a then_o prejudicial_a to_o he_o have_v very_o serious_o tell_v i_o that_o he_o can_v quick_o grow_v a_o extraordinary_a rich_a man_n if_o he_o can_v but_o do_v constant_o whatsoever_o he_o have_v do_v not_o only_o two_o or_o three_o but_o many_o time_n the_o other_o end_n pyrophilus_n to_o which_o i_o have_v a_o eye_n in_o write_v the_o past_a discourse_n be_v that_o they_o may_v serve_v for_o a_o kind_n of_o apology_n for_o sober_a and_o experimental_a writer_n in_o case_n you_o shall_v not_o always_o upon_o trial_n find_v the_o experiment_n or_o observation_n by_o they_o deliver_v answer_v your_o expectation_n and_o indeed_o it_o will_v prove_v a_o great_a discouragement_n to_o wary_a and_o considerate_a naturalist_n from_o enrich_v the_o world_n with_o their_o observation_n if_o they_o shall_v find_v that_o their_o faithfulness_n in_o set_v down_o what_o they_o observe_v be_v not_o able_a to_o protect_v they_o from_o blast_a imputation_n of_o falsehood_n but_o that_o by_o publish_v any_o thing_n for_o the_o good_a of_o other_o they_o must_v expose_v their_o reputation_n to_o all_o the_o uncertainty_n to_o which_o any_o of_o their_o experiment_n may_v chance_v to_o prove_v obnoxious_a it_o be_v true_a indeed_o that_o if_o a_o writer_n be_v wont_a to_o be_v fabulous_a or_o transcriptive_a and_o to_o deliver_v thing_n confident_o by_o hear-say_n without_o tell_v his_o reader_n when_o he_o do_v so_o if_o his_o experiment_n upon_o trial_n
it_o be_v to_o be_v find_v in_o so_o great_a a_o number_n of_o compound_v body_n vegetable_a animal_n and_o even_o mineral_n that_o it_o seem_v to_o we_o to_o be_v not_o only_o one_o of_o the_o most_o catholic_n of_o salt_n but_o so_o considerable_a a_o ingredient_n of_o many_o sublunary_a concretes_n that_o we_o may_v just_o suppose_v it_o may_v well_o deserve_v our_o serious_a inquiry_n since_o the_o knowledge_n of_o it_o may_v be_v very_o conducive_a to_o the_o discovery_n of_o the_o nature_n of_o several_a other_o body_n and_o to_o the_o improvement_n of_o divers_a part_n of_o natural_a philosophy_n sect_n ii_o but_o not_o have_v at_o present_a much_o leisure_n allow_v i_o by_o several_a avocation_n to_o make_v accurate_a inquiry_n into_o the_o nature_n of_o salt-petre_n in_o general_a and_o which_o be_v more_o considerable_a be_v not_o yet_o furnish_v wi●h_v a_o competent_a number_n of_o experiment_n requisite_a to_o such_o a_o purpose_n i_o must_v content_v myself_o for_o this_o time_n to_o tender_v you_o some_o assistance_n towards_o the_o discovery_n of_o how_o differ_v substance_n may_v be_v obtain_v from_o nitre_n and_o compound_v it_o again_o by_o present_v you_o some_o reflection_n on_o a_o experiment_n which_o my_o desire_n to_o hasten_v to_o another_o subject_n oblige_v i_o to_o set_v down_o naked_o as_o i_o first_o try_v it_o by_o way_n of_o narrative_n sect_n iii_o we_o take_v then_o common_a nitre_n as_o we_o buy_v it_o at_o the_o druggist_n and_o have_v by_o the_o usual_a way_n of_o solution_n filtration_n and_o coagulation_n reduce_v it_o into_o crystal_n we_o put_v four_o ounce_n of_o this_o purify_a nitre_n into_o a_o strong_a new_a crucible_n receiver_n in_o which_o the_o vessel_n be_v first_o well_o neal_v to_o prevent_v crack_v and_o cover_v to_o prevent_v the_o fall_n in_o of_o any_o thing_n that_o may_v unreasonable_o kindle_v the_o petre_n we_o melt_v it_o into_o a_o limpid_a liquor_n and_o whilst_o it_o be_v in_o fusion_n cast_v into_o it_o a_o small_a live_a coal_n which_o present_o kindle_v it_o and_o make_v it_o boil_v and_o hiss_v and_o flash_n for_o a_o pretty_a while_n after_o which_o we_o cast_v in_o another_o glow_a coal_n which_o make_v it_o fulminate_v afresh_o and_o after_o that_o we_o cast_v in_o a_o three_o and_o a_o four_o and_o so_o continue_v the_o operation_n till_o the_o nitre_n will_v neither_o fulminate_v nor_o be_v kindle_v any_o more_o after_o which_o we_o continue_v to_o keep_v it_o in_o a_o strong_a fire_n for_o above_o a_o quarter_n of_o a_o hour_n that_o if_o any_o volatile_a part_n shall_v yet_o remain_v it_o may_v be_v force_v off_o sect_n iv._o then_o take_v out_o the_o crucible_n and_o break_v it_o whilst_o it_o be_v hot_a we_o take_v out_o as_o careful_o as_o we_o can_v the_o remain_v fix_v nitre_n before_o it_o have_v imbibe_v much_o of_o the_o moisture_n of_o the_o air_n and_o divide_v it_o into_o two_o equal_a part_n we_o dissolve_v one_o of_o those_o portion_n in_o as_o much_o fair_a water_n as_o will_v just_o suffice_v for_o the_o solution_n of_o it_o and_o then_o drop_v on_o it_o spirit_n of_o salt-petre_a till_o the_o ebullition_n occasion_v by_o the_o mutual_a action_n of_o those_o contrary_a liquor_n do_v perfect_o cease_v and_o forthwith_o filtrate_v this_o mixture_n we_o expose_v it_o in_o a_o new_a open_a vial_n to_o the_o air_n in_o a_o window_n and_o return_v to_o the_o other_o portion_n of_o fix_a nitre_n which_o we_o have_v set_v apart_o and_o not_o dissolve_v we_o drop_v on_o that_o likewise_o of_o the_o same_o spirit_n till_o the_o hiss_a and_o ebullition_n be_v altogether_o cease_v and_o then_o we_o expose_v this_o mixture_n also_o in_o a_o open_a glass_n jar_v to_o the_o air_n in_o the_o same_o window_n with_o the_o former_a sect_n v._o the_o event_n of_o these_o trial_n be_v that_o the_o mixture_n wherein_o fair_a water_n be_v employ_v do_v in_o a_o few_o hour_n fasten_v to_o the_o low_a part_n of_o the_o side_n of_o the_o glass_n wherein_o it_o be_v put_v some_o saline_a particle_n which_o seem_v by_o their_o form_n and_o partly_o too_o by_o their_o shoot_v about_o the_o low_a part_n of_o the_o vessel_n to_o be_v salt-petre_a among_o who_o little_a crystal_n nevertheless_o there_o appear_v to_o swim_v very_o little_a grain_n much_o small_a than_o mustard-seed_n of_o some_o other_o kind_n of_o salt_n environ_v with_o a_o downy_a matter_n not_o unlike_o that_o which_o be_v oftentimes_o to_o be_v observe_v in_o rose-water_n and_o several_a other_o distil_a water_n when_o they_o begin_v to_o decay_v the_o crystal_n be_v the_o next_o day_n take_v out_o be_v by_o that_o time_n grow_v somewhat_o great_a and_o more_o numerous_a and_o disclose_v themselves_o upon_o trial_n to_o be_v indeed_o nitrous_a as_o well_o by_o their_o manner_n of_o burn_a as_o their_o shape_n concern_v the_o latter_a of_o which_o since_o learned_a modern_a writer_n have_v misrepresent_v it_o some_o make_v nitre_n to_o be_v cylindrical_a and_o other_o of_o a_o figure_n less_o approach_v to_o the_o true_a one_o i_o think_v myself_o oblige_v in_o this_o place_n to_o observe_v to_o you_o by_o the_o way_n that_o have_v purposely_o consider_v some_o large_a crystal_n of_o refine_a and_o unanalyze_v nitre_n the_o figure_n be_v in_o such_o best_a discern_v they_o appear_v to_o have_v each_o of_o they_o six_o flat_a side_n not_o always_o of_o equal_a breadth_n in_o respect_n of_o one_o another_o whereof_o any_o two_o that_o be_v opposite_a be_v common_o parallel_v but_o to_o return_v to_o our_o augment_a crystal_n of_o nitre_n what_o the_o other_o matter_n that_o adhere_v to_o they_o be_v there_o be_v so_o very_o little_a of_o it_o that_o we_o can_v not_o well_o discern_v though_o we_o then_o suspect_v it_o to_o proceed_v from_o the_o want_n of_o a_o just_a or_o exact_a proportion_n betwixt_o the_o volatile_a and_o fix_a part_n of_o the_o nitre_n that_o be_v to_o be_v reunite_v sect_n vi_o the_o remain_a liquor_n be_v pour_v into_o a_o open_a glass_n jar_v and_o leave_v in_o the_o same_o window_n continue_v five_o or_o six_o day_n without_o manifest_v any_o considerable_a alteration_n but_o at_o the_o end_n of_o that_o time_n there_o begin_v to_o appear_v in_o it_o very_o fine_a crystalline_a styriae_fw-la of_o petre_n which_o grow_v more_o and_o more_o numerous_a during_o a_o fortnight_n long_o at_o which_o time_n be_v weary_v with_o attend_v the_o so_o slow_a consumption_n of_o the_o liquor_n we_o pour_v it_o from_o the_o crystal_n and_o set_v it_o in_o a_o digest_v furnace_n to_o evaporate_v more_o nimble_o sect_n vii_o the_o other_o mixture_n wherein_o no_o water_n be_v employ_v do_v present_o for_o a_o great_a part_n of_o it_o subside_o in_o the_o form_n of_o salt_n over_o which_o there_o swim_v a_o little_a liquor_n which_o also_o seem_v to_o keep_v the_o subside_v particle_n of_o salt_n from_o congeal_v into_o one_o coherent_a mass_n or_o so_o much_o as_o great_a lump_n and_o a_o part_n of_o this_o drench_a salt_n be_v take_v out_o and_o permit_v to_o dry_a in_o the_o air_n do_v not_o appear_v very_o regular_o figure_v but_o yet_o seem_v here_o and_o there_o to_o recede_v very_o little_a from_o the_o shape_n of_o salt-petre_n and_o be_v cast_v on_o a_o quick_a coal_n it_o burn_v partly_o after_o a_o manner_n not_o peculiar_a that_o we_o have_v observe_v to_o any_o distinct_a kind_n of_o salt_n and_o yet_o it_o partly_o seem_v to_o imitate_v the_o flash_a way_n of_o deflagration_n proper_a to_o nitre_n the_o remain_a part_n of_o this_o salt_n together_o with_o the_o liquor_n swim_v upon_o it_o we_o keep_v for_o about_o a_o month_n in_o the_o open_a air_n without_o discern_v any_o observable_a change_n in_o the_o liquor_n till_o towards_o the_o latter_a end_n of_o that_o time_n and_o then_o we_o find_v it_o partly_o coagulate_v into_o small_a saline_a mass_n who_o figure_n we_o be_v not_o able_a to_o discern_v and_o therefore_o dissolve_v the_o whole_a mixture_n in_o a_o little_a fair_a water_n and_o filtrate_v it_o we_o find_v after_o evaporation_n in_o a_o digest_v furnace_n about_o one_o half_a of_o the_o salt_n shoot_v into_o fine_a small_a iceicle_n of_o the_o shape_n of_o crystal_n of_o petre_n but_o somewhat_o differ_v from_o they_o in_o taste_n upon_o their_o first_o be_v put_v upon_o the_o tongue_n but_o upon_o a_o live_a coal_n they_o burn_v not_o unlike_a petre._n and_o the_o remain_a half_a of_o this_o dissolution_n be_v somewhat_o hasty_o press_v to_o exhale_v let_v fall_v its_o salt_n in_o a_o figure_n which_o we_o can_v not_o reduce_v either_o to_o that_o of_o salt-petre_n or_o of_o any_o other_o determinate_a kind_n of_o salt_n for_o the_o clear_a comprehend_v of_o this_o experiment_n you_o may_v be_v please_v pyrophilus_n to_o take_v notice_n sect_n viii_o 1._o that_o a_o
experiment_n i_o the_o rather_o mention_v because_o many_o of_o the_o ensue_a reflection_n may_v be_v justify_v by_o they_o although_o the_o main_a experiment_n make_v on_o salt-petre_a alone_o shall_v in_o divers_a paricular_o be_v suppose_v for_o we_o have_v use_v our_o endeavour_n that_o it_o may_v not_o be_v find_v to_o have_v be_v mistake_v sect_n xii_o the_o reflection_n which_o may_v be_v make_v on_o this_o experiment_n be_v more_o than_o i_o have_v either_o the_o skill_n or_o leisure_n to_o prosecute_v and_o therefore_o i_o shall_v content_v myself_o to_o present_v you_o very_o succinct_o with_o a_o few_o of_o those_o that_o do_v the_o most_o ready_o occur_v to_o my_o present_a thought_n and_o first_o this_o experiment_n seem_v to_o afford_v we_o a_o instance_n by_o which_o we_o may_v discern_v that_o motion_n figure_n and_o disposition_n of_o part_n and_o such_o like_a primary_n and_o mechanical_a affection_n if_o i_o may_v so_o call_v they_o of_o matter_n may_v suffice_v to_o produce_v those_o more_o secondary_a affection_n of_o body_n which_o be_v wont_a to_o be_v call_v sensible_a quality_n sect_n xiii_o and_o to_o begin_v with_o the_o tangible_a quality_n as_o heat_n and_o cold_a it_o be_v common_o hold_v that_o salt-petre_n be_v in_o operation_n a_o cold_a body_n if_o not_o one_o of_o the_o cold_a in_o the_o world_n and_o according_o physician_n and_o chemist_n be_v wont_a to_o give_v it_o in_o fever_n to_o allay_v the_o inward_a exaestuation_n of_o the_o blood_n and_o humour_n and_o that_o profound_a naturalist_n the_o lord_n verulam_n high_o commend_v a_o little_a of_o it_o and_o do_v for_o many_o year_n himself_o make_v use_v of_o it_o to_o condense_a the_o spirit_n but_o whatever_o it_o be_v in_o inward_a operation_n certain_o to_o the_o outward_a sense_n it_o appear_v very_o cold_a and_o yet_o the_o part_n of_o this_o so_o cold_a body_n its_o spirit_n and_o alkali_n by_o the_o latter_a of_o which_o chemist_n be_v wont_a to_o mean_v any_o fix_a salt_n produce_v by_o burn_a put_v together_o do_v immediate_o agitate_v each_o other_o with_o great_a vehemency_n and_o do_v in_o our_o experiment_n produce_v such_o a_o heat_n that_o i_o can_v scarce_o endure_v to_o hold_v in_o my_o hand_n the_o vial_n wherein_o much_o less_o than_o a_o ounce_n of_o each_o be_v mix_v though_o but_o leisurely_o and_o almost_o by_o drop_n as_o if_o heat_n be_v nothing_o but_o a_o various_a and_o nimble_a motion_n of_o the_o minute_n particle_n of_o body_n for_o in_o our_o experiment_n as_o long_o as_o that_o confuse_a agitation_n last_v so_o long_o the_o heat_n endure_v and_o with_o that_o agitation_n it_o increase_v and_o abate_v and_o at_o length_n when_o the_o motion_n cease_v the_o heat_n also_o vanish_v sect_n fourteen_o upon_o the_o mixture_n of_o the_o two_o forementioned_a liquor_n there_o be_v also_o produce_v a_o very_a audible_a sound_n not_o unlike_o the_o hiss_v produce_v by_o the_o quench_n of_o a_o live_a coal_n in_o water_n and_o this_o hiss_v be_v as_o that_o other_o be_v wont_a to_o be_v accompany_v with_o a_o effervescence_n and_o boil_a up_o of_o the_o liquor_n with_o store_n of_o bubble_n till_o it_o be_v ready_a to_o run_v over_o the_o vessel_n this_o sound_n seem_v to_o proceed_v from_o the_o nimble_a and_o smart_a percussion_n of_o the_o ambient_fw-la air_n make_v by_o the_o swift_a and_o irregular_a motion_n of_o the_o particle_n of_o the_o liquor_n and_o such_o a_o kind_n of_o sound_n but_o much_o loud_o be_v produce_v by_o the_o impetuous_a eruption_n of_o the_o halituous_a flame_n of_o the_o salt-petre_n upon_o the_o cast_n of_o a_o live_a coal_n upon_o it_o what_o interest_n such_o a_o smartnesse_n in_o strike_v the_o air_n have_v in_o the_o production_n of_o sound_n may_v in_o some_o measure_n appear_v by_o the_o motion_n of_o the_o bullet_n and_o that_o of_o a_o switch_n or_o orhe_a wand_n which_o produce_v no_o sound_n if_o they_o do_v but_o slow_o pass_v through_o the_o air_n whereas_o if_o the_o one_o do_v smart_o strike_v the_o air_n and_o the_o other_o be_v shoot_v out_o of_o a_o gun_n the_o celerity_n of_o their_o percussion_n on_o the_o air_n put_v it_o into_o a_o undulate_a motion_n which_o reach_v the_o ear_n produce_v a_o audible_a noise_n even_o at_o a_o good_a distance_n from_o the_o body_n who_o swift_a passage_n cause_v those_o nimble_a vibration_n in_o the_o air_n as_o we_o may_v elsewhere_o have_v occasion_n to_o declare_v and_o that_o in_o the_o sound_a observable_a in_o our_o experiment_n the_o contiguous_a air_n receive_v many_o stroke_n from_o the_o particle_n of_o the_o liquor_n seem_v probable_a by_o the_o sudden_a and_o eager_a tumultuation_n of_o the_o part_n of_o the_o liquor_n and_o by_o this_o that_o the_o noise_n increase_v and_o decay_v proportionable_o to_o the_o ebullition_n of_o the_o liquor_n and_o cease_v altogether_o as_o soon_o as_o the_o saline_a particle_n float_v in_o they_o have_v by_o their_o conflict_n tire_v themselves_o into_o quietness_n and_o it_o be_v to_o be_v observe_v that_o the_o noise_n end_v long_o before_o the_o heat_n to_o the_o latter_a of_o which_o such_o a_o intestine_a tumult_n of_o the_o part_n of_o many_o body_n be_v sufficient_a as_o be_v yet_o uncapable_a to_o produce_v a_o sound_n as_o we_o see_v in_o amber_n or_o good_a hard_a wax_n heat_v by_o rub_v and_o in_o many_o liquor_n which_o retain_v a_o considerable_a degree_n of_o heat_n a_o good_a while_n after_o the_o expiration_n of_o the_o noise_n the_o noise_n they_o make_v in_o boil_v sect_n xv._n we_o mention_v also_o that_o our_o fix_a petre_n be_v of_o a_o bluish_a green_a colour_n which_o upon_o the_o affusion_n of_o the_o acid_a spirit_n sudden_o vanish_v that_o disposition_n of_o part_n whereby_o the_o light_n reflect_v to_o the_o eye_n be_v so_o modify_v as_o to_o produce_v that_o colour_n be_v now_o alter_v and_o the_o like_a change_n we_o have_v sometime_o observe_v to_o be_v producible_a in_o fix_a nitre_n by_o the_o bare_a leave_v it_o a_o while_n in_o the_o moist_a air_n to_o which_o i_o must_v add_v that_o in_o some_o such_o kind_n of_o experiment_n i_o have_v observe_v the_o copious_a fume_n arise_v from_o the_o mixture_n to_o make_v the_o unfilled_a part_n of_o the_o glass_n look_v of_o a_o red_a colour_n which_o be_v not_o more_o odd_a than_o that_o which_o we_o have_v late_o have_v opportunity_n to_o observe_v in_o soot_n which_o though_o it_o be_v so_o black_a itself_o and_o result_v from_o the_o coalition_n of_o dark_a exhalation_n yet_o press_v with_o a_o strong_a fire_n have_v fill_v our_o receiver_n with_o fume_n white_a enough_o to_o make_v they_o look_v as_o if_o they_o be_v replenish_v with_o milk_n and_o we_o have_v sometime_o also_o take_v great_a pleasure_n to_o behold_v the_o variety_n of_o colour_n which_o may_v be_v now_o and_o then_o discern_v in_o the_o sublimate_n make_v by_o gradual_o sublime_v in_o a_o urinal_n a_o mixture_n of_o equal_a part_n of_o only_a white_a salarmoniack_a and_o black_a antimony_n but_o to_o wander_v no_o long_o far_o from_o our_o present_a experiment_n give_v i_o leave_v to_o inform_v you_o that_o a_o while_n since_o attempt_v to_o make_v salt_n of_o tartar_n resolve_v in_o a_o little_a fair_a water_n a_o ingredient_n of_o salt-petre_n by_o the_o addition_n of_o good_a aqua_fw-la fortis_fw-la the_o union_n of_o these_o two_o liquor_n produce_v a_o deep_a green_a colour_n which_o not_o only_o be_v diffuse_v quite_o through_o the_o mixture_n but_o also_o appear_v to_o reside_v peculiar_o in_o certain_a particle_n of_o it_o for_o have_v for_o trial_n sake_n filter_v it_o through_o cap-paper_n there_o remain_v in_o the_o fil●●e_a a_o powder_n of_o a_o very_a deep_a and_o lovely_a colour_n but_o in_o so_o little_a quantity_n that_o we_o can_v not_o attempt_v any_o experiment_n upon_o it_o to_o make_v it_o confess_v its_o nature_n but_o this_o circumstance_n be_v not_o to_o be_v omit_v that_o the_o salt_n of_o tartar_n that_o be_v then_o employ_v be_v extraordinary_a pure_a have_v be_v by_o a_o peculiar_a art_n elsewhere_o to_o be_v teach_v you_o bring_v without_o any_o addition_n into_o fair-figured_a crystal_n almost_o like_o lump_n of_o white_a sugar-candy_n to_o which_o i_o must_v add_v that_o the_o same_o aqua_fw-la fortis_fw-la with_o a_o solution_n of_o other_o pure_a salt_n of_o tartar_n do_v likewise_o produce_v a_o colour_n much_o resemble_v the_o former_a but_o much_o faint_a and_o it_o be_v far_a to_o be_v take_v notice_n of_o on_o this_o subject_a partly_o that_o nitre_n itself_o although_o it_o seem_v to_o have_v nothing_o of_o kin_n to_o redness_n do_v in_o distillation_n yield_v blood-red_a fume_n fond_o call_v by_o some_o chemist_n the_o blood_n of_o the_o salamander_n which_o fall_v again_o into_o a_o liquor_n that_o have_v nothing_o of_o red_a in_o it_o and_o partly_o
that_o the_o fix_a nitre_n that_o do_v before_o appear_v opacous_a by_o a_o new_a disposition_n of_o its_o part_n conjoin_v with_o those_o of_o its_o reimbibed_a spirit_n become_v again_o somewhat_o diaphanous_a and_o crystalline_a as_o it_o be_v at_o first_o sect_n xvi_o upon_o the_o mixture_n of_o these_o two_o liquor_n there_o also_o obtrude_v itself_o upon_o the_o sense_n a_o very_a strong_a and_o offensive_a smell_n proceed_v from_o the_o spirit_n of_o petre_n which_o perhaps_o occasion_v some_o chemist_n to_o call_v a_o menstruum_fw-la whereinis_fw-la that_o nitrous_a spirit_n and_o smell_n be_v predominant_a the_o stygian_a water_n but_o though_o the_o nitrous_a spirit_n have_v a_o very_a strong_a and_o unwelcome_a odour_n of_o itself_o yet_o be_v it_o make_v much_o more_o offensive_a by_o be_v pour_v on_o its_o own_o fix_a salt_n for_o upon_o their_o conflict_n the_o matter_n be_v vehement_o agitate_a do_v more_o copious_o emit_v such_o stink_a exhalation_n than_o before_o and_o send_v forth_o fume_n manifest_o discernible_a as_o well_o to_o the_o eye_n as_o nostril_n the_o odour_n of_o the_o fix_a nitre_n be_v very_o languid_a but_o that_o which_o it_o discover_v be_v dissolve_v in_o a_o little_a hot_a water_n be_v altogether_o differ_v from_o the_o stink_n of_o the_o other_o be_v of_o kin_n to_o that_o of_o other_o alkalizate_a salt_n and_o yet_o the_o salt-petre_n from_o which_o such_o differingly-sented_n body_n spring_n and_o which_o may_v again_o emerge_n from_o the_o coalition_n of_o they_o have_v not_o be_v observe_v as_o i_o remember_v to_o have_v any_o smell_n at_o all_o sect_n xvii_o the_o taste_v of_o these_o two_o body_n be_v as_o differ_v as_o any_o of_o their_o other_o quality_n for_o the_o spirit_n be_v exceed_o acid_a and_o may_v be_v call_v a_o strong_a and_o sour_a acetum_fw-la minerale_fw-mi whereas_o the_o fix_a nitre_n have_v as_o strong_a a_o taste_n of_o salt_n of_o tartar_n as_o the_o spirit_n have_v of_o distil_a vinegar_n and_o yet_o these_o two_o body_n who_o sapour_n be_v so_o pungent_a and_o so_o differ_v do_v both_o spring_n from_o and_o unite_v into_o salt-petre_n which_o betray_v upon_o the_o tongue_n no_o heat_n nor_o corrosivenesse_n at_o all_o but_o coldness_n mix_v with_o a_o somewhat_o languid_a relish_n retain_v to_o bitterness_n and_o though_o we_o must_v not_o conceal_v from_o you_o that_o in_o our_o trial_n the_o redintegrate_v salt-petre_n have_v upon_o its_o first_o impression_n upon_o the_o tongue_n a_o taste_n more_o sharp_a and_o perforate_n if_o i_o may_v so_o speak_v than_o ordinary_a nitre_n yet_o that_o pungency_n may_v not_o improbable_o be_v suppose_v to_o have_v proceed_v from_o some_o acid_n particle_n of_o the_o spirit_n that_o be_v not_o yet_o due_o incorporate_v with_o but_o only_o loose_o adherent_a to_o the_o more_o perfect_o nitrous_a part_n which_o afterward_o discover_v itself_o upon_o the_o tongue_n and_o however_o the_o difference_n betwixt_o the_o taste_n of_o this_o new_a salt_n and_o those_o of_o the_o acid_n and_o alkalizate_a salt_n whereof_o it_o consist_v and_o unquestionable_o the_o taste_n of_o these_o compare_v with_o that_o of_o the_o crude_a petre_n which_o be_v dissipate_v into_o they_o be_v sufficient_a to_o warrant_v this_o reflection_n sect_n xviii_o of_o the_o other_o observables_n present_v we_o by_o our_o experiment_n we_o must_v pyrophilus_n content_v ourselves_o to_o mention_v but_o a_o few_o our_o haste_n be_v such_o that_o it_o will_v not_o permit_v we_o either_o to_o enumerate_v they_o all_o or_o to_o insist_v long_o on_o any_o of_o they_o sect_n xix_o second_o then_o the_o propose_a experiment_n seem_v to_o make_v it_o some_o what_o questionable_a whether_o or_o no_o inflammability_n do_v strict_o in_o all_o mix_a body_n require_v a_o distinct_a sulphureous_a ingredient_n and_o whether_o or_o no_o in_o some_o concretes_n it_o may_v not_o result_v from_o such_o a_o contrivance_n of_o part_n as_o that_o thereby_o the_o particle_n of_o the_o concrete_a be_v dispose_v to_o be_v set_v a_o move_n by_o the_o adventitious_a whether_o fiery_a or_o calorisick_n corpuscle_n of_o another_o body_n in_o such_o number_n and_o with_o such_o celerity_n as_o may_v put_v they_o into_o that_o scheme_n of_o matter_n which_o we_o call_v flame_n how_o violent_a a_o heat_n may_v be_v produce_v upon_o such_o a_o account_n as_o this_o may_v in_o some_o measure_n appear_v by_o a_o experiment_n wherein_o our_o present_a theme_n salt-petre_a be_v the_o main_a agent_n for_o if_o into_o a_o vial_n fill_v with_o good_a spirit_n of_o nitre_n you_o cast_v a_o piece_n of_o iron_n you_o may_v perceive_v that_o the_o liquor_n who_o part_n move_v placid_o and_o uniform_o before_o manifest_v no_o heat_n to_o the_o touch_n meet_v with_o pore_n and_o particle_n in_o the_o iron_n capable_a of_o very_a much_o alter_v the_o motion_n of_o its_o part_n and_o perhaps_o also_o that_o of_o some_o very_a subtle_a intercurrent_a matter_n those_o active_a part_n do_v present_o begin_v to_o penetrate_v sever_v and_o scatter_v abroad_o the_o particle_n of_o the_o iron_n almost_o as_o gunpowder_n do_v the_o piece_n of_o break_v granade_n with_o such_o rapidity_n and_o in_o such_o plenty_n and_o throng_n that_o be_v themselves_o also_o put_v into_o a_o very_a swift_a and_o irregular_a motion_n whence_o soever_o it_o proceed_v there_o be_v hereby_o produce_v a_o heat_n capable_a if_o the_o quantity_n of_o the_o liquor_n and_o metal_n be_v great_a enough_o to_o burn_v his_o hand_n that_o hold_v the_o vessel_n and_o perhaps_o break_v the_o vessel_n if_o it_o be_v not_o very_o open_a all_o to_o piece_n whereas_o by_o cast_v into_o the_o same_o spirit_n of_o nitre_n little_a lump_n of_o camphire_n who_o particle_n be_v indispose_v to_o occasion_v the_o like_a disturbance_n and_o agitation_n in_o the_o nitrous_a spirit_n we_o observe_v the_o agitation_n make_v of_o the_o particle_n of_o the_o white_a gum_n to_o change_v it_o only_o into_o a_o yellowish_a and_o fluid_a seem_a oil_n sect_n xx._n but_o not_o to_o wander_v any_o further_a our_o own_o experiment_n inform_v we_o that_o salt-petre_n which_o not_o only_o be_v inflammable_a but_o burn_v very_o fierce_o and_o violent_o may_v be_v produce_v by_o the_o coalition_n of_o two_o body_n which_o be_v neither_o of_o they_o inflammable_a the_o one_o be_v a_o fix_a salt_n that_o to_o become_v such_o have_v already_o suffer_v the_o loss_n of_o all_o that_o the_o fire_n can_v deprive_v it_o of_o and_o the_o other_o be_v a_o spirit_n abound_v with_o acid_a particle_n which_o kind_n of_o salt_n have_v be_v observe_v to_o be_v more_o apt_a to_o quench_v than_o foment_n fire_n sect_n xxi_o and_o because_o we_o may_v elsewhere_o god_n assist_v treat_v more_o particular_o of_o the_o inflammableness_n of_o body_n we_o will_v now_o add_v but_o a_o few_o line_n concern_v that_o of_o nitre_n that_o this_o circumstance_n of_o it_o may_v not_o escape_v our_o observation_n namely_o that_o upon_o cast_v salt-petre_n on_o a_o glow_a coal_n or_o upon_o the_o cast_n of_o a_o glow_a coal_n into_o melt_a salt-petre_n the_o nitre_n will_v immediate_o take_v fire_n and_o flash_n out_o into_o bluish_a and_o halituous_a flame_n whereas_o if_o the_o same_o nitre_n be_v place_v in_o a_o crucible_n though_o that_o crucible_n be_v by_o degreee_n make_v glow_v hot_a and_o do_v immediate_o with_o its_o concave_a surface_n in_o innumerable_a place_n touch_v the_o particle_n of_o nitre_n yet_o the_o strange_a salt_n will_v be_v thereby_o melt_v but_o not_o kindle_v the_o reason_n of_o which_o phaenomenon_n i_o must_v not_o now_o but_o may_n on_o another_o occasion_n spend_v time_n to_o inquire_v after_o sect_n xxii_o it_o may_v also_o pyrophi_n deserve_v the_o enquiry_n whence_o it_o proceed_v that_o whereas_o the_o body_n of_o salt-petre_n when_o commit_v to_o distillation_n be_v oftentimes_o very_a well_o dry_v and_o consist_v of_o saline_n part_v which_o be_v general_o account_v to_o be_v of_o a_o very_a dry_a nature_n yet_o the_o spirit_n of_o petre_n force_v by_o the_o fire_n into_o the_o receiver_n shall_v not_o like_o salarmoniack_a and_o some_o other_o body_n distil_v with_o the_o like_a he●t_n and_o vessel_n adhere_v in_o the_o form_n of_o sublimate_n to_o the_o receiver_n but_o fall_v into_o a_o liquor_n which_o do_v not_o for_o aught_o we_o have_v see_v or_o hear_v of_o either_o total_o or_o in_o part_n coagulate_a again_o in_o the_o cold_a as_o we_o have_v see_v spirit_n of_o urine_n and_o other_o volatile_a liquor_n afford_v by_o animal_n substance_n often_o do_v and_o as_o we_o have_v observe_v though_o rare_o even_o in_o the_o corrosive_a liquor_n that_o be_v wont_a to_o be_v call_v butter_n of_o antimony_n and_o the_o like_a enquiry_n may_v be_v make_v concern_v the_o liquidnesse_n of_o the_o distil_a spirit_n of_o decrepitate_v salt_n calcine_v vitriol_n and_o divers_a other_o body_n which_o seem_v
to_o have_v be_v destitute_a of_o moisture_n when_o commit_v to_o distillation_n sect_n xxiii_o but_o this_o not_o be_v precise_o a_o phaenomenon_n of_o our_o experiment_n we_o shall_v not_o here_o prosecute_v it_o though_o perhaps_o we_o else_o where_o may_v but_o rather_o observe_v to_o you_o pyrophilus_n that_o whereas_o good_a spirit_n of_o nitre_n be_v leave_v in_o a_o open_a vessel_n be_v wont_n to_o smoke_n and_o waste_v itself_o in_o a_o exhalation_n sensible_a especial_o if_o it_o be_v excite_v by_o a_o little_a heat_n not_o only_o in_o the_o nose_n but_o to_o the_o eye_n this_o fugitive_n spirit_n when_o it_o be_v once_o reunite_v to_o its_o own_o fix_a salt_n emit_v no_o such_o steam_n though_o keep_v a_o good_a while_n near_o a_o considerable_a fire_n which_o instance_n may_v somewhat_o assist_v we_o to_o make_v out_o that_o the_o most_o fugitive_a part_n of_o concretes_n may_v in_o spite_n of_o their_o natural_a mobility_n be_v detain_v in_o body_n by_o their_o union_n and_o texture_n with_o the_o more_o sluggish_a part_n of_o they_o among_o which_o those_o light_a and_o more_o active_a ingredient_n may_v be_v so_o entangle_v as_o to_o be_v restrain_v from_o avolation_n sect_n xxiv_o another_o thing_n worth_n consider_v in_o our_o experiment_n be_v this_o that_o upon_o the_o drop_n of_o the_o acid_a spirit_n into_o the_o alkalizate_a liquor_n if_o you_o place_v the_o openmouth_n glass_n wherein_o the_o experiment_n be_v perform_v betwixt_o the_o light_n and_o your_o eye_n you_o may_v plain_o discern_v that_o the_o saline_n particle_n of_o these_o liquor_n toss_v one_o another_o or_o be_v toss_v by_o some_o brisk_a invisible_a substance_n to_o the_o height_n of_o divers_a finger_n breadth_n up_o into_o the_o air_n whence_o most_o of_o they_o fall_v back_o into_o the_o vessel_n like_o a_o thick_a shower_n of_o little_a drop_n of_o rain_n and_o it_o be_v worth_a inquire_v whence_o this_o sparkle_a of_o the_o part_n of_o these_o mix_a liquor_n arise_v and_o whether_o the_o saline_n corpuscle_n may_v be_v conceive_v rapid_o to_o move_v differ_v way_n and_o so_o thwart_v each_o other_o in_o their_o course_n and_o rude_o justle_a at_o their_o occursion_n some_o of_o they_o be_v force_v to_o bound_v or_o fly_v upward_o almost_o like_o ivory_n ball_n meet_v each_o other_o on_o a_o billyard-table_n and_o to_o assist_v you_o in_o this_o enquiry_n give_v i_o leave_v to_o inform_v you_o that_o the_o particle_n thus_o throw_v into_o the_o air_n appear_v to_o be_v most_o of_o they_o saline_n by_o this_o observation_n that_o soon_o after_o the_o fall_n of_o the_o forementioned_a shower_n you_o shall_v find_v the_o side_n of_o the_o glass_n wherein_o the_o affusion_n of_o the_o nitrous_a spirit_n have_v be_v make_v all_o embroider_a with_o little_a grain_n of_o salt_n leave_v there_o by_o those_o wander_a drop_n that_o fall_v beside_o the_o liquor_n sect_n xxv_o and_o let_v i_o far_o observe_v to_o you_o that_o there_o seem_v to_o be_v a_o very_a nimble_a agitation_n in_o the_o particle_n of_o the_o spirit_n of_o nitre_n by_o this_o that_o upon_o the_o pour_v of_o aqua_fw-la fortis_fw-la who_o active_a part_n be_v little_a else_o than_o spirit_n of_o nitre_n upon_o a_o solution_n of_o salt_n of_o tartar_n in_o fair_a water_n in_o which_o divers_a small_a lump_n of_o the_o salt_n remain_v yet_o undissolve_v we_o have_v observe_v the_o acid_a spirit_n to_o sever_v the_o particle_n of_o the_o salt_n with_o such_o impetuosity_n that_o the_o numberless_a little_a bubble_n produce_v upon_o their_o conflict_n and_o hasty_o ascend_v in_o swarm_n from_o some_o of_o the_o little_a lump_n make_v they_o emulate_v so_o many_o little_a but_o rapid_o rise_v spring_n and_o to_o make_v it_o yet_o appear_v more_o probable_a that_o there_o may_v be_v such_o cross_v motion_n in_o the_o part_n of_o these_o liquor_n we_o observe_v that_o after_o the_o two_o contrary_a salt_n have_v by_o their_o mutual_a conflict_n tire_v each_o other_o or_o rather_o have_v be_v upon_o their_o occursion_n fasten_v to_o one_o another_o there_o will_v follow_v no_o far_o ebullition_n or_o skip_v up_o and_o down_o of_o little_a drop_n of_o the_o liquor_n upon_o the_o put_n in_o of_o more_o spirit_n of_o nitre_n unless_o there_o be_v add_v likewise_o more_o of_o the_o alkalizate_a liquor_n sect_n xxvi_o and_o before_o we_o pass_v on_o from_o this_o reflection_n it_o may_v not_o be_v useless_a to_o take_v notice_n of_o the_o difference_n that_o there_o may_v be_v betwixt_o those_o active_a part_n of_o a_o body_n which_o be_v of_o differ_v nature_n when_o they_o be_v as_o it_o be_v sheathe_v up_o or_o wedge_v in_o among_o other_o in_o the_o texture_n of_o a_o concrete_a and_o the_o same_o particle_n when_o extricate_v from_o these_o impediment_n they_o be_v set_v at_o liberty_n to_o flock_v together_o and_o by_o the_o exercise_n of_o their_o nimble_a motion_n display_v their_o proper_a but_o former_o clog_v activity_n or_o acquire_v a_o disposition_n to_o be_v brisk_o agitate_a by_o some_o fine_a interfluent_a matter_n for_o though_o in_o the_o entire_a body_n of_o salt-petre_n the_o ingredient_n it_o consist_v of_o or_o the_o differ_a substance_n into_o which_o the_o fire_n dissipate_v it_o do_v so_o mutual_o implicate_v and_o hinder_v each_o other_o that_o the_o concrete_a whilst_o such_o act_v but_o very_o languid_o yet_o when_o the_o part_n come_v to_o be_v dislocate_v and_o the_o halituous_a and_o alkalizate_a particle_n be_v enable_v or_o make_v to_o disband_v from_o the_o concrete_a and_o associate_v themselves_o with_o those_o of_o their_o own_o nature_n we_o see_v with_o how_o great_a a_o activity_n both_o the_o acid_a spirit_n and_o the_o fix_a salt_n be_v endow_v sect_n xxvii_o and_o we_o may_v yet_o far_o observe_v that_o it_o be_v not_o bare_o a_o indefinite_a nimbleness_n of_o motion_n and_o activity_n of_o the_o particle_n of_o saline_n liquor_n that_o enable_v they_o to_o perform_v each_o of_o their_o particular_a effect_n for_o to_o the_o production_n of_o some_o of_o these_o there_o seem_v requisite_a beside_o perhaps_o a_o modification_n of_o their_o motion_n a_o determinate_a figure_n of_o the_o corpuscle_n answerable_a to_o that_o of_o the_o pore_n of_o the_o body_n by_o they_o to_o be_v dissolve_v as_o spirit_n of_o nitre_n corrode_v silver_n but_o not_o gold_n which_o nevertheless_o its_o particle_n associate_v with_o those_o of_o salarmoniack_a and_o thereby_o acquire_v a_o new_a figure_n and_o perhaps_o a_o differ_a motion_n will_v ready_o dissolve_v and_o the_o liquor_n of_o fix_a nitre_n will_v for_o the_o same_o reason_n dissolve_v such_o sulphureous_a and_o unctuous_a body_n as_o the_o acid_a spirit_n will_v not_o corrode_v nay_o and_o i_o have_v careful_o observe_v that_o there_o may_v be_v liquor_n that_o will_v not_o dissolve_v some_o body_n unless_o the_o motion_n or_o activity_n of_o their_o particle_n be_v allay_v or_o modify_v by_o the_o mixture_n of_o fair_a water_n or_o such_o unactive_a vehicle_n sect_n xxviii_o another_o particular_a which_o in_o our_o experiment_n we_o may_v take_v notice_n of_o be_v the_o unwarinesse_n of_o those_o vulgar_a chemist_n who_o presume_v confident_o and_o indiscriminate_o enough_o to_o ascribe_v to_o each_o of_o the_o heterogeneous_a ingredient_n or_o in_o their_o language_n principle_n of_o a_o concrete_a analyse_v by_o the_o fire_n the_o virtue_n and_o property_n perhaps_o too_o in_o a_o exalt_a degree_n of_o the_o entire_a body_n but_o though_o this_o be_v a_o error_n of_o very_a ill_a consequence_n in_o reference_n to_o divers_a chemical_a preparation_n of_o medicine_n yet_o have_v elsewhere_o discourse_v purposely_o of_o it_o we_o shall_v here_o content_v ourselves_o to_o allege_v against_o it_o the_o instance_n afford_v we_o by_o the_o experiment_n under_o consideration_n for_o in_o that_o we_o may_v observe_v that_o when_o salt-petre_n be_v distil_v the_o volatile_a liquor_n and_o fix_a salt_n into_o which_o it_o be_v reduce_v by_o the_o fire_n be_v endow_v with_o property_n exceed_v different_a both_o from_o each_o other_o and_o from_o those_o of_o the_o undissipate_v concrete_a for_o the_o spirit_n of_o nitre_n be_v as_o we_o former_o have_v observe_v a_o kind_a of_o acetum_fw-la minerale_fw-mi and_o possess_v the_o common_a quality_n to_o be_v meet_v with_o in_o acid_a spirit_n as_o such_o whereas_o the_o fix_a nitre_n be_v of_o a_o alkalizate_a nature_n and_o participate_v the_o quality_n belong_v general_o to_o lixiviate_v salt_n and_o salt-petre_a itself_o be_v a_o peculiar_a sort_n of_o salt_n discriminate_v by_o distinct_a property_n both_o from_o those_o salt_n that_o be_v eminent_o acid_a as_o alum_n vitriol_n sal-gemmae_a etc._n etc._n and_o from_o those_o that_o be_v proper_o alkalizate_a as_o salt_n of_o tartar_n and_o pot-ash_n and_o according_o we_o may_v easy_o observe_v a_o vast_a disparity_n in_o the_o effect_n and_o operation_n of_o these_o
the_o particular_a opinion_n wherein_o the_o atomist_n differ_v from_o other_o modern_a naturalist_n especial_o since_o he_o have_v on_o some_o occasion_n plain_o enough_o intimate_v the_o contrary_a by_o propose_v together_o with_o the_o atomical_a way_n of_o resolve_v a_o thing_n another_o explication_n more_o agreeable_a to_o the_o cartesian_a or_o some_o other_o modern_a hypothesis_n the_o follow_v tract_n be_v entitle_v a_o history_n of_o fluidity_n and_o firmness_n because_o indeed_o the_o have_v set_v down_o experiment_n and_o other_o matter_n of_o fact_n relate_v to_o the_o subject_n treat_v of_o be_v the_o main_n though_o not_o the_o only_a thing_n the_o author_n dare_v pretend_v to_o have_v do_v in_o it_o and_o he_o style_v the_o history_n as_o it_o now_o come_v abroad_o begin_v partly_o because_o he_o will_v invite_v able_a pen_n to_o contribute_v their_o observation_n towards_o the_o complete_n of_o what_o he_o be_v sensible_a he_o have_v but_o begin_v and_o partly_o because_o he_o may_v hereafter_o if_o god_n permit_v do_v something_o of_o that_o kind_n himself_o and_o last_o the_o author_n though_o trouble_v that_o he_o can_v do_v it_o dare_v not_o but_o advertise_v the_o reader_n that_o some_o page_n partly_o a_o little_a after_o the_o beginning_n and_o partly_o about_o the_o middle_n of_o the_o follow_a treatise_n have_v be_v lose_v through_o the_o negligence_n or_o mistake_n of_o he_o to_o who_o care_n the_o sheet_n whereon_o it_o be_v write_v be_v commit_v he_o fear_v he_o have_v not_o be_v able_a otherwise_o than_o very_o lame_o and_o imperfect_o to_o repair_v that_o loss_n out_o of_o his_o memory_n the_o history_n of_o fluidity_n and_o firmness_n the_o first_o part._n of_o fluidity_n sect_n i._o whither_o philosopher_n may_v not_o have_v do_v better_a in_o make_v fluidity_n and_o firmness_n rather_o state_n than_o quality_n of_o body_n we_o will_v not_o now_o examine_v but_o under_o which_o soever_o of_o the_o two_o notion_n we_o look_v upon_o they_o it_o be_v manifest_a enough_o that_o they_o be_v to_o be_v reckon_v among_o the_o most_o general_a affection_n of_o the_o convention_n or_o association_n of_o several_a particle_n of_o matter_n into_o body_n of_o any_o certain_a denomination_n there_o be_v scarce_o any_o distinct_a portion_n of_o matter_n in_o the_o world_n that_o be_v not_o either_o fluid_a or_o else_o stable_a or_o consistent_a and_o therefore_o i_o presume_v it_o may_v be_v well_o worth_a while_n to_o consider_v what_o may_v be_v the_o general_a cause_n of_o these_o two_o state_n quality_n or_o affection_n of_o matter_n and_o to_o try_v whether_o by_o associate_a chemical_a experiment_n to_o philosophical_a notion_n there_o may_v not_o be_v give_v at_o least_o a_o more_o intelligible_a and_o more_o practical_a of_o both_o these_o subject_n than_o have_v be_v hitherto_o afford_v we_o by_o the_o doctrine_n of_o the_o school_n which_o be_v wont_a to_o appear_v very_o unsatisfactory_a to_o discern_a man_n many_o of_o who_o look_v upon_o what_o be_v wont_a to_o be_v teach_v by_o the_o peripatetic_n concern_v fluidity_n and_o firmness_n as_o well_o as_o other_o quality_n to_o be_v partly_o too_o general_a to_o teach_v we_o much_o and_o partly_o too_o obscure_a to_o be_v understand_v and_o that_o which_o at_o present_a invite_v we_o to_o this_o enquiry_n be_v chief_o that_o some_o circumstance_n of_o our_o author_n experiment_n touch_v salt-petre_n may_v afford_v we_o some_o useful_a assistance_n in_o our_o design_a search_n for_o though_o the_o chief_a phaenomena_n and_o circumstance_n of_o the_o experiment_n may_v be_v think_v principal_o to_o respect_v fluidity_n yet_o since_o that_o and_o firmness_n be_v contrary_a quality_n and_o since_o it_o be_v true_o as_o well_o as_o common_o say_v that_o contrary_n survey_v together_o serve_v to_o illustrate_v each_o other_o it_o may_v reasonable_o be_v hope_v that_o the_o light_n which_o the_o circumstance_n just_a now_o relate_v to_o may_v give_v to_o the_o nature_n of_o fluidity_n may_v facilitate_v the_o knowledge_n of_o that_o of_o compactness_n nevertheless_o we_o shall_v often_o be_v oblige_v to_o treat_v of_o these_o two_o quality_n together_o because_o the_o experiment_n we_o be_v to_o produce_v do_v many_o of_o they_o relate_v to_o both_o sect_n ii_o a_o body_n than_o seem_v to_o be_v fluid_a chief_o upon_o this_o account_n that_o it_o consist_v of_o corpuscle_n that_o touch_v one_o another_o in_o some_o part_n only_o of_o their_o surface_n and_o so_o be_v incontiguous_a in_o the_o rest_n and_o separately_z agitate_a to_o and_o fro_o can_v by_o reason_n of_o the_o numerous_a pore_n or_o space_n necessary_o leave_v betwixt_o their_o incontiguous_a part_n easy_o glide_v along_o each_o other_o superficies_n and_o by_o reason_n of_o their_o motion_n diffuse_v themselves_o till_o they_o meet_v with_o some_o hard_a or_o resist_a body_n to_o who_o internal_a surface_n by_o virtue_n of_o that_o motion_n their_o smallness_n and_o either_o their_o gravity_n or_o something_o analogous_a or_o equivalent_a to_o it_o they_o exquisite_o as_o to_o sense_n accommodate_v themselves_o sect_n iii_o what_o notion_n epicurus_n and_o the_o ancient_a atomist_n his_o follower_n have_v of_o fluid_a body_n may_v be_v learn_v from_o these_o verse_n of_o his_o paraphra_v lucretius_n illa_fw-la autem_fw-la debent_fw-la ex_fw-la laevibus_fw-la atque_fw-la rotundis_fw-la esse_fw-la magis_fw-la fluido_fw-la quae_fw-la corpore_fw-la liquida_fw-la constant_a nec_fw-la retinentur_fw-la enim_fw-la inter_fw-la se_fw-la glomeramina_fw-la quaeque_fw-la et_fw-la procursus_fw-la item_n in_o proclive_a volubilis_fw-la extat_fw-la and_o indeed_o it_o be_v probable_a enough_o that_o in_o divers_a liquor_n the_o little_a surface_n of_o the_o component_a particle_n be_v smooth_a and_o slippery_a and_o that_o their_o be_v so_o do_v much_o facilitate_v the_o glide_n of_o the_o corpuscle_n among_o themselves_o and_o consequent_o the_o fluidity_n of_o the_o body_n they_o compose_v nor_o be_v it_o to_o be_v deny_v that_o the_o spherical_a figure_n of_o such_o corpuscle_n may_v also_o conduce_v to_o their_o easy_a roll_v upon_o one_o another_o but_o there_o be_v divers_a other_o figure_n which_o may_v make_v the_o little_a body_n endow_v with_o they_o voluble_a enough_o to_o constitute_v a_o fluid_a substance_n and_o the_o other_o quality_n to_o be_v meet_v with_o in_o divers_a liquid_a substance_n and_o even_o in_o water_n itself_o and_o oil_n seem_v to_o argue_v their_o part_n to_o be_v otherwise_o shape_v and_o those_o fluid_a body_n which_o be_v not_o liquor_n as_o air_n and_o fire_n seem_v to_o be_v compose_v of_o particle_n not_o all_o or_o most_o of_o they_o round_o but_o of_o very_o various_a and_o sometime_o of_o very_o irregular_a figure_n and_o yet_o that_o such_o body_n deserve_v to_o be_v call_v fluid_a one_o will_v be_v manifest_a anon_o and_o that_o they_o make_v a_o much_o more_o considerable_a part_n of_o the_o universe_n than_o those_o that_o be_v wont_a to_o be_v call_v liquor_n may_v be_v argue_v from_o hence_o that_o except_o the_o earth_n the_o planet_n and_o perhaps_o too_o the_o fix_a star_n the_o rest_n of_o the_o world_n as_o vast_a as_o it_o be_v seem_v to_o consist_v chief_o if_o not_o only_o of_o a_o aetherial_a thin_a and_o fluid_a substance_n as_o may_v appear_v to_o omit_v other_o argument_n by_o what_o latter_a astronomer_n have_v observe_v concern_v the_o free_a and_o unresisted_a motion_n of_o such_o comet_n as_o have_v by_o a_o trajection_n through_o the_o aether_n for_o a_o long_a time_n wander_v through_o the_o celestial_a or_o interstellar_a part_n of_o the_o universe_n sect_n iv._o and_o here_o let_v we_o observe_v that_o it_o be_v not_o necessary_a to_o the_o fluidity_n of_o a_o body_n nay_o nor_o to_o its_o appear_a fluid_n to_o the_o eye_n itself_o that_o the_o corpuscle_n it_o consist_v of_o be_v crowd_v as_o close_v together_o as_o they_o be_v wont_n to_o be_v in_o water_n and_o other_o body_n that_o be_v common_o look_v upon_o as_o the_o only_a liquor_n for_o though_o a_o parcel_n of_o matter_n no_o big_a than_o a_o grain_n of_o corn_n be_v rarify_v into_o smoke_n will_v possess_v a_o incomparable_o great_a space_n than_o it_o do_v before_o and_o though_o if_o a_o body_n be_v further_o rarify_v into_o flame_n its_o expansion_n will_v be_v yet_o much_o great_a yet_o both_o smoke_n and_o flame_n may_v be_v so_o order_v as_o to_o appear_v like_o liquor_n we_o have_v practise_v divers_a way_n to_o make_v the_o fume_n of_o body_n acquire_v a_o visibly-level_n superficies_n like_o water_n but_o the_o easy_a though_o not_o perhaps_o the_o best_a be_v this_o part_n of_o which_o i_o remember_v i_o have_v see_v perform_v as_o a_o kind_n of_o trick_n by_o a_o very_a ingenious_a person_n the_o mouth_n be_v fill_v with_o the_o smoke_n of_o rosemary_n that_o happen_v to_o be_v at_o hand_n when_o i_o make_v the_o experiment_n if_o this_o smoke_n be_v plentiful_o blow_v into_o a_o
glass_n pipe_n of_o a_o indifferent_a size_n and_o open_a at_o both_o end_n and_o if_o when_o it_o be_v well_o fill_v with_o smoke_n the_o low_a end_n be_v present_o stop_v and_o the_o glass_n be_v keep_v still_o a_o while_n in_o a_o erect_a posture_n the_o fume_n will_v settle_v by_o degree_n to_o a_o level_a superficies_n like_o water_n so_o that_o though_o you_o gentle_o incline_v the_o pipe_n any_o way_n the_o upper_a surface_n of_o the_o smoke_n will_v nevertheless_o quick_o grow_v parallel_n to_o the_o horizon_n and_o if_o the_o glass_n be_v further_o but_o slow_o make_v to_o stoop_v the_o smoke_n will_v seem_v to_o run_v down_o in_o a_o body_n like_o water_n whilst_o it_o continue_v in_o the_o pipe_n though_o when_o it_o be_v come_v to_o the_o low_a end_n of_o it_o instead_o of_o drop_v down_o like_o water_n it_o will_v common_o rather_o fly_v upward_o and_o disperse_v itself_o into_o the_o air_n and_o as_o for_o flame_n i_o foresee_v i_o shall_v ere_o long_o have_v occasion_n to_o mention_v a_o experiment_n whereby_o i_o have_v sometime_o endeavour_v to_o show_v that_o even_o two_o contiguous_a flame_n as_o expanded_a body_n as_o they_o be_v and_o as_o open_a as_o their_o texture_n be_v may_v like_v visible_a fluid_n of_o a_o differ_a kind_n retain_v distinct_a surface_n sect_n v._o but_o instead_o of_o examine_v any_o further_a how_o many_o body_n be_v or_o may_v be_v make_v visible_o to_o appear_v fluid_a one_o let_v we_o now_o resume_v the_o consideration_n of_o what_o it_o be_v that_o make_v body_n fluid_a especial_o since_o have_v intimate_v some_o of_o the_o reason_n why_o we_o be_v unwilling_a to_o confine_v ourselves_o to_o the_o epicurean_a notion_n we_o hope_v it_o will_v the_o less_o be_v dislike_v that_o we_o think_v fit_a to_o make_v such_o a_o description_n of_o a_o fluid_a substance_n as_o may_v intimate_v that_o we_o conceive_v the_o condition_n of_o it_o to_o be_v chief_o these_o three_o the_o first_o be_v the_o littleness_n of_o the_o body_n that_o compose_v it_o for_o in_o big_a parcel_n of_o matter_n beside_o the_o great_a inequality_n or_o roughness_n that_o be_v usual_a upon_o their_o surface_n and_o may_v hinder_v the_o easy_a slide_n of_o those_o body_n along_o one_o another_o and_o beside_o that_o diverse_a other_o affection_n of_o a_o fluid_a body_n can_v well_o belong_v to_o a_o aggregate_v of_o gross_a lump_n of_o matter_n beside_o these_o thing_n i_o say_v the_o bulk_n itself_o be_v apt_a to_o make_v they_o so_o heavy_a that_o they_o can_v be_v agitate_a by_o the_o power_n of_o those_o cause_n whatever_o they_o be_v that_o make_v the_o minute_n part_n of_o fluid_a body_n move_v so_o free_o up_o and_o down_o among_o themselves_o whereas_o it_o will_v scarce_o be_v believe_v how_o much_o the_o smallnesse_n of_o part_n may_v facilitate_v their_o be_v easy_o put_v into_o motion_n and_o keep_v in_o it_o if_o we_o be_v not_o able_a to_o confirm_v it_o by_o chemical_a experiment_n but_o we_o see_v that_o lead_n quicksilver_n and_o even_o gold_n itself_o though_o whilst_o they_o be_v of_o a_o sensible_a bulk_n they_o will_v ready_o sink_v to_o the_o bottom_n of_o aqua_fw-la regis_fw-la or_o any_o other_o such_o liquor_n yet_o when_o the_o menstruum_fw-la have_v corrode_v they_o or_o fret_v they_o asunder_o into_o very_a minute_n part_n those_o minute_n corpuscle_n grow_v then_o so_o much_o more_o capable_a of_o agitation_n than_o before_o that_o quit_v the_o bottom_n of_o the_o liquor_n they_o be_v carry_v free_o every_o way_n and_o to_o the_o top_n with_o the_o associate_v part_n of_o the_o liquor_n without_o fall_v back_o again_o to_o the_o bottom_n nay_o we_o see_v that_o ponderous_a and_o mineral_n body_n divide_v into_o corpuscle_n small_a enough_o may_v be_v make_v so_o light_a and_o voluble_a as_o to_o become_v ingredient_n even_o of_o distil_a liquor_n as_o we_o may_v learn_v by_o what_o some_o chemist_n call_v the_o butter_n other_o simple_o the_o oil_n and_o other_o the_o oleum_fw-la glaciale_a of_o antimony_n which_o though_o it_o be_v after_o rectification_n a_o very_a limpid_a liquor_n yet_o do_v in_o great_a part_n consist_v of_o the_o very_a body_n of_o the_o antimony_n as_o may_v appear_v not_o to_o mention_v its_o weight_n by_o this_o that_o it_o be_v most_o easy_a to_o precipitate_v out_o of_o it_o with_o fair_a water_n store_n of_o a_o ponderous_a white_a calx_fw-la reducible_a by_o art_n to_o a_o antimonial_a glass_n nay_o we_o make_v a_o menstruum_fw-la with_o which_o we_o can_v easy_o at_o the_o first_o or_o second_o distillation_n bring_v over_o gold_n enough_o to_o make_v the_o distil_a liquor_n appear_v and_o continue_v ennoble_v with_o a_o golden_a colour_n and_o to_o show_v yet_o more_o particular_o that_o great_a body_n be_v too_o unwieldy_a to_o constitute_v fluid_a one_o we_o may_v further_o observe_v how_o as_o well_o nature_n as_o art_n when_o either_o of_o they_o make_v body_n of_o considerable_a bulk_n fluid_a be_v wont_n in_o order_n thereunto_o to_o make_v a_o comminution_n of_o they_o as_o we_o may_v observe_v in_o divers_a example_n sect_n vi_o thus_o we_o see_v that_o in_o the_o stomach_n of_o dog_n nature_n to_o reduce_v bone_n into_o those_o fluid_a body_n chyle_n and_o blood_n do_v by_o some_o powerful_a and_o appropriate_v juice_n whether_o belong_v to_o the_o stomach_n itself_o or_o throw_v out_o of_o the_o artery_n in_o the_o passage_n of_o the_o circulate_v blood_n dissolve_v they_o into_o part_n so_o minute_n that_o the_o acute_a eye_n will_v not_o tempt_v a_o man_n to_o suspect_v that_o such_o a_o liquor_n have_v ever_o be_v a_o bone_n and_o that_o it_o may_v not_o be_v object_v that_o this_o dissolution_n be_v chief_o perform_v or_o at_o least_o must_v always_o be_v assist_v by_o the_o liquor_n which_o animal_n take_v into_o their_o stomach_n by_o drink_v i_o shall_v represent_v not_o only_o that_o we_o find_v by_o experience_n how_o little_a common_a water_n the_o only_a usual_a drink_n of_o dog_n wolf_n etc._n etc._n be_v able_a to_o dissolve_v bone_n though_o they_o be_v very_o long_o not_o macerate_v but_o boil_v in_o it_o but_o that_o if_o we_o may_v believe_v natural_a historian_n and_o credible_a traveller_n there_o be_v some_o sort_n of_o animal_n as_o particular_o camel_n that_o may_v be_v bring_v not_o to_o drink_v once_o in_o many_o day_n even_o when_o they_o travel_v in_o hot_a climate_n and_o to_o make_v you_o think_v this_o the_o less_o improbable_a i_o shall_v add_v that_o i_o be_o familiar_o acquaint_v with_o a_o ingenious_a gentleman_n who_o as_o himself_o and_o a_o ancient_a virtuoso_fw-la in_o who_o house_n he_o live_v have_v inform_v i_o do_v usual_o drink_v but_o once_o in_o several_a day_n and_o then_o no_o excessive_a draught_n neither_o and_o when_o i_o ask_v he_o how_o long_o he_o have_v actual_o abstain_v not_o bare_o from_o drink_n but_o from_o thirst_v after_o it_o he_o answer_v that_o he_o have_v once_o some_o few_o year_n before_o continue_v about_o nine_o day_n without_o either_o take_n or_o need_v any_o drink_n and_o he_o doubt_v not_o but_o that_o he_o may_v have_v continue_v much_o long_o in_o that_o state_n if_o by_o distemper_a himself_n one_o night_n with_o long_a and_o hard_a study_n he_o have_v not_o have_v some_o light_a inclination_n to_o take_v a_o small_a draught_n which_o serve_v he_o for_o about_o four_o day_n long_o and_o when_o i_o ask_v he_o whether_o in_o that_o hot_a summer_n day_n that_o precede_v the_o evening_n wherein_o he_o happen_v to_o tell_v i_o this_o he_o have_v not_o drink_v at_o all_o he_o answer_v negative_o and_o it_o add_v to_o the_o strangeness_n of_o this_o peculiarity_n that_o this_o gentleman_n be_v in_o the_o flower_n of_o his_o youth_n be_v but_o about_o twenty_o two_o year_n of_o age_n and_o of_o a_o sanguine_a and_o florid_n complexion_n and_o to_o annex_v that_o also_o upon_o the_o by_o i_o learn_v by_o enquiry_n from_o he_o that_o he_o sweat_v free_o enough_o as_o i_o remember_v i_o see_v he_o do_v that_o his_o diet_n be_v the_o same_o with_o other_o man_n without_o restrain_v he_o from_o the_o free_a use_n of_o salt_n meat_n and_o that_o his_o urine_n be_v in_o quantity_n much_o like_o that_o of_o ordinary_a man_n of_o his_o age_n and_o temperament_n but_o to_o return_v to_o what_o i_o be_v saying_n more_o general_o of_o the_o stomachical_a menstruum_fw-la of_o animal_n i_o shall_v add_v on_o this_o occasion_n that_o to_o make_v some_o kind_n of_o imitation_n of_o it_o i_o prepare_v and_o do_v elsewhere_o mention_v and_o teach_v a_o certain_a liquor_n that_o i_o use_v whereby_o i_o have_v in_o a_o short_a time_n and_o without_o fire_n dissociate_v the_o part_n of_o roast_a or_o boil_a flesh_n bread_n fruit_n etc._n etc._n and_o pull_v they_o asunder_o into_o very_a minute_n
condition_n be_v that_o there_o be_v store_n of_o vacant_a space_n intercept_v betwixt_o the_o component_a particle_n of_o the_o fluid_a body_n or_o at_o least_o about_o those_o of_o the●_n that_o be_v superficial_a for_o without_o this_o there_o will_v not_o b●_n room_n for_o each_o of_o the_o corpuscle_n to_o continue_v its_o agitation_n upon_o the_o surface_v of_o the_o neighbour_a one_o and_o there_o will_v be_v no_o session_n of_o any_o because_o there_o will_v be_v no_o place_n unpossessed_a for_o the_o impel_v corpuscle_n to_o be_v receive_v in_o but_o when_o i_o speak_v of_o vacant_a space_n ordinary_o if_o not_o always_o requisite_a to_o be_v intercept_v betwixt_o the_o particle_n of_o fluid_a body_n i_o intend_v not_o to_o determine_v whether_o or_o no_o such_o space_n shall_v or_o may_v be_v vacuity_n proper_o so_o call_v it_o be_v common_o sufficient_a to_o this_o second_o condition_n of_o a_o fluid_a body_n that_o in_o the_o little_a space_n intercept_v between_o those_o 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