we_o must_v not_o quite_o leave_v out_o the_o mention_n of_o the_o air_n which_o i_o have_v often_o observe_v to_o facilitate_v the_o elevation_n of_o some_o body_n even_o in_o close_a vessel_n wherein_o though_o to_o fill_v they_o too_o full_o be_v judge_v by_o many_o a_o compendious_a practice_n because_o the_o stream_n have_v a_o less_o way_n to_o ascend_v yet_o experience_n have_v several_a time_n inform_v i_o that_o at_o least_o in_o some_o case_n they_o take_v wrong_a measure_n and_o that_o to_o pass_v by_o another_o cause_n of_o their_o disappointment_n a_o large_a proportion_n of_o air_n purposely_o leave_v in_o the_o vessel_n may_v more_o than_o compensate_a the_o great_a space_n that_o be_v to_o be_v ascend_v by_o the_o vapour_n or_o exhalation_n of_o the_o matter_n that_o be_v to_o be_v distil_v or_o sublime_v and_o if_o in_o close_a vessel_n the_o presence_n of_o the_o air_n may_v promote_v the_o ascension_n of_o body_n it_o may_v well_o be_v expect_v that_o the_o 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in_o the_o fire_n of_o founder_n and_o glass-maker_n which_o bring_v into_o my_o mind_n that_o not_o have_v observe_v that_o chemist_n have_v examine_v the_o fixity_n of_o other_o body_n than_o metalline_a one_o by_o the_o cupel_n i_o have_v the_o curiosity_n to_o put_v dry_a salt_n of_o tartar_n upon_o it_o and_o find_v as_o i_o expect_v that_o in_o no_o long_a time_n it_o manifest_o waste_v in_o so_o vehement_a a_o heat_n wherein_o also_o the_o air_n come_v free_o at_o it_o though_o quicklime_n handle_v after_o the_o same_o way_n lose_v not_o of_o its_o weight_n and_o have_v well_o mix_v one_o ounce_n of_o good_a salt_n of_o tartar_n with_o treble_a its_o weight_n of_o tobacco-pipe_n day_n we_o keep_v they_o but_o for_o two_o or_o at_o most_o three_o hour_n in_o a_o strong_a fire_n yet_o the_o crucible_n be_v purposely_o leave_v uncover_v we_o
will_v at_o least_o indispose_v the_o touch_v corpuscle_n to_o suffer_v a_o total_a divulsion_n may_v appear_v probable_a from_o what_o we_o late_o note_v of_o the_o cohesion_n of_o piece_n of_o marble_n and_o glass_n and_o from_o some_o other_o phaenomena_n belong_v to_o the_o history_n of_o firmness_n from_o which_o we_o may_v proper_o enough_o borrow_v some_o instance_n as_o least_o for_o illustration_n in_o the_o doctrine_n of_o fixtness_n in_o regard_n that_o usual_o though_o not_o always_o the_o same_o thing_n that_o make_v a_o body_n firm_a give_v it_o some_o degree_n of_o fixity_n by_o keep_v it_o from_o be_v dissipate_v by_o the_o wont_a degree_n of_o heat_n and_o agitation_n it_o meet_v with_o in_o the_o air._n but_o to_o return_v to_o the_o contact_n we_o be_v speak_v of_o i_o think_v it_o not_o impossible_a though_o you_o may_v perhaps_o think_v it_o strange_a that_o the_o bare_a operation_n of_o the_o fire_n may_v in_o some_o case_n procure_v a_o cohesion_n among_o the_o particle_n and_o consequent_o make_v they_o more_o fix_v as_o well_o as_o in_o other_o disjoin_v they_o and_o thereby_o make_v they_o more_o volatile_a for_o as_o in_o some_o body_n the_o figure_n and_o size_n of_o the_o corpuscle_n may_v be_v such_o that_o the_o action_n of_o the_o fire_n may_v rub_v or_o tear_v off_o the_o little_a beard_n or_o hook_n or_o other_o particle_n that_o entangle_v they_o and_o by_o that_o mean_n make_v it_o more_o easy_a for_o the_o corpuscle_n to_o be_v disengage_v and_o fly_v upward_o so_o in_o other_o body_n the_o size_n and_o shape_n of_o the_o corpuscle_n may_v be_v such_o that_o the_o agitation_n cause_v by_o the_o fire_n may_v rub_v they_o one_o against_o the_o other_o so_o as_o by_o mutual_a attrition_n to_o grind_v as_o it_o be_v their_o surface_n and_o make_v they_o so_o broad_a and_o smooth_a if_o not_o also_o so_o flat_a as_o that_o the_o contact_n of_o the_o corpuscle_n shall_v come_v to_o be_v make_v according_a to_o a_o large_a portion_n 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to_o stick_v together_o you_o will_v easy_o believe_v their_o aggregate_v will_n prove_v too_o heavy_a or_o unwieldy_a for_o avolation_n and_o to_o show_v that_o the_o fire_n may_v effect_v a_o laevigation_n in_o the_o surface_v of_o some_o corpuscle_n i_o have_v sometime_o cause_v minium_n and_o some_o other_o calces_fw-la that_o i_o judge_v convenient_a to_o be_v melt_v for_o a_o competent_a time_n in_o a_o vehement_a fire_n convenient_o administer_v whereby_o according_a to_o expectation_n that_o which_o be_v before_o a_o dull_a and_o incoherent_a powder_n be_v reduce_v into_o much_o grosser_n corpuscle_n multitude_n of_o who_o grain_n appear_v smooth_a glitter_a and_o almost_o specular_a like_o those_o of_o fine_a litharge_n of_o gold_n and_o the_o mass_n that_o these_o grain_n compose_v be_v usual_o solid_a enough_o and_o of_o difficult_a fusion_n and_o when_o we_o make_v glass_n of_o lead_n per_fw-la se_fw-la which_o i_o elsewhere_o teach_v you_o how_o to_o do_v it_o be_v plain_a that_o the_o particle_n of_o the_o lead_n be_v reduce_v to_o a_o great_a smoothness_n since_o wheresoever_o you_o break_v the_o glass_n the_o surface_n produce_v at_o the_o crack_n will_v not_o be_v jagged_a but_o smooth_a and_o considerable_o specular_a nor_o do_v i_o think_v it_o impossible_a that_o even_o when_o the_o fire_n do_v not_o make_v any_o great_a attrition_n of_o the_o corpuscle_n of_o the_o body_n to_o be_v fix_v it_o may_v yet_o occasion_v their_o stick_v together_o because_o by_o long_o tumble_v they_o up_o and_o down_o in_o various_a manner_n it_o may_v at_o length_n after_o multitude_n of_o revolution_n and_o differ_a occursion_n bring_v those_o of_o their_o surface_n together_o which_o by_o reason_n of_o their_o breadth_n smoothness_n or_o congruity_n of_o figure_n be_v fit_a for_o mutual_a cohesion_n and_o when_o once_o they_o come_v to_o stick_v there_o be_v no_o necessity_n that_o the_o same_o cause_n that_o be_v able_a to_o make_v they_o pass_v by_o one_o another_o when_o their_o contact_n be_v but_o according_a to_o a_o inconsiderable_a part_n of_o their_o surface_n shall_v have_v the_o same_o effect_n now_o when_o their_o contact_n be_v full_a though_o perhaps_o if_o the_o degree_n of_o fire_n be_v much_o increase_v a_o more_o vehement_a agitation_n will_v surmount_v this_o cohesion_n and_o dissipate_v again_o these_o cluster_n of_o coalescent_a corpuscle_n these_o conjecture_n will_v perhaps_o appear_v less_o extravagant_a if_o you_o consider_v what_o happen_v in_o the_o preparation_n of_o quicksilver_n precipitate_v per_fw-la se_fw-la for_o there_o run_v mercury_n be_v put_v into_o a_o convenient_o shape_v glass_n be_v expose_v to_o a_o moderate_a fire_n for_o a_o considerable_a time_n for_o i_o have_v sometime_o find_v six_o or_o seven_o week_n to_o be_v too_o short_a a_o one_o in_o this_o degree_n of_o fire_n the_o part_n be_v various_o tumble_v and_o make_v many_o of_o they_o to_o ascend_v till_o convening_n into_o drop_n on_o the_o side_n of_o the_o glass_n their_o weight_n carry_v they_o down_o again_o but_o at_o length_n after_o many_o mutual_a occursion_n if_o not_o also_o attrition_n some_o of_o the_o part_n begin_v to_o stick_v together_o in_o the_o form_n of_o a_o red_a powder_n and_o then_o more_o and_o more_o mercurial_a particle_n be_v fasten_v to_o it_o till_o at_o length_n all_o or_o by_o much_o the_o great_a part_n of_o the_o mercury_n be_v reduce_v into_o the_o like_a praecipitate_v which_o by_o this_o cohesion_n of_o the_o part_n be_v grow_v more_o fix_v will_v not_o with_o the_o same_o degree_n of_o heat_n be_v make_v to_o rise_v and_o circulate_v as_o the_o mercury_n will_v fore_o and_o yet_o as_o i_o elsewhere_o note_n i_o have_v find_v by_o trial_n that_o with_o a_o great_a and_o competent_a degree_n of_o heat_n this_o praecipitate_v per_fw-la se_fw-la will_v without_o the_o help_n of_o any_o volatilize_a additament_n be_v easy_o reduce_v into_o run_v mercury_n again_o chemist_n and_o physician_n who_o agree_v in_o suppose_v this_o praecipitate_v to_o be_v make_v without_o any_o additament_n will_v perchance_o scarce_o be_v able_a to_o give_v a_o more_o likely_a account_n of_o the_o consistency_n and_o degree_n of_o fixity_n that_o be_v obtain_v in_o the_o mercury_n in_o which_o since_o no_o body_n be_v add_v to_o it_o there_o appear_v not_o to_o be_v wrought_v any_o but_o a_o mechanical_a change_n and_o though_o i_o confess_v i_o have_v not_o be_v without_o suspicion_n that_o in_o philosophical_a strictness_n this_o praecipitate_v may_v not_o be_v make_v per_fw-la se_fw-la but_o that_o some_o penetrate_a igneous_a particle_n especial_o saline_a may_v have_v associate_v themselves_o with_o the_o mercurial_a corpuscle_n yet_o even_o upon_o this_o supposition_n it_o may_v be_v say_v that_o these_o particle_n contribute_v to_o the_o effect_n that_o be_v produce_v but_o by_o facilitate_v or_o procure_v by_o their_o opportune_a interposition_n the_o mutual_a cohesion_n of_o corpuscle_n that_o will_v not_o otherwise_o stick_v to_o one_o another_o perhaps_o it_o will_v not_o be_v altogether_o impertinent_a to_o add_v on_o this_o occasion_n that_o as_o for_o the_o generality_n of_o chemist_n as_o well_o other_o as_o helmontian_n that_o assert_v the_o transmutation_n of_o all_o metal_n into_o gold_n by_o the_o philosopher_n stone_n i_o think_v they_o may_v grant_v it_o to_o be_v probable_a that_o a_o new_a and_o fit_a contexture_n of_o the_o part_n of_o a_o volatile_a body_n may_v especial_o by_o procure_v a_o full_a contact_n among_o they_o very_o much_o contribute_v to_o make_v it_o high_o fix_v for_o to_o omit_v what_o be_v relate_v by_o less_o credible_a author_n it_o be_v aver_v upon_o his_o own_o trial_n by_o helmont_n who_o pretend_v not_o to_o the_o elixir_n that_o a_o grain_n of_o the_o powder_n that_o be_v give_v he_o transmute_v a_o pound_n if_o i_o mis-rememb_a not_o of_o run_v mercury_n where_o the_o
salt_n vehement_a enough_o to_o produce_v a_o sensible_a heat_n especial_o if_o we_o admit_v that_o there_o be_v such_o a_o change_n make_v in_o the_o pore_n as_o occasion_n a_o great_a increase_n of_o this_o agitation_n by_o the_o ingress_n and_o action_n of_o some_o subtle_a ethereal_a matter_n from_o which_o alone_a monsieur_n des_fw-fr cartes_n ingenious_o attempt_v to_o derive_v the_o incalescence_n of_o lime_n and_o water_n as_o well_o as_o that_o of_o metal_n dissolve_v in_o corrosive_a liquor_n though_o as_o to_o the_o phaenomena_n we_o have_v be_v consider_v there_o seem_v at_o least_o to_o concur_v a_o peculiar_a disposition_n of_o body_n wherein_o heat_n be_v to_o be_v produce_v to_o do_v one_o or_o both_o of_o these_o two_o thing_n namely_o to_o retain_v good_a store_n of_o the_o igneous_a effluvia_fw-la and_o to_o be_v by_o their_o adhesion_n or_o some_o other_o operation_n of_o the_o fire_n reduce_v to_o such_o a_o texture_n of_o its_o component_a particle_n as_o to_o be_v fit_a to_o have_v they_o easy_o penetrate_v and_o brisk_o as_o well_o as_o copious_o dissipate_v by_o invade_v water_n and_o this_o conjecture_n for_o i_o propose_v it_o as_o no_o other_o seem_v favour_v by_o divers_a phaenomena_n some_o whereof_o i_o shall_v now_o annex_v for_o here_o it_o may_v be_v observe_v that_o both_o the_o dissolve_a salt_n of_o tartar_n late_o mention_v and_o the_o artificial_a liquor_n that_o grow_v hot_a with_o the_o natural_a reacquire_v that_o disposition_n to_o incalescence_n upon_o a_o bare_a constipation_n or_o close_a texture_n of_o the_o part_n from_o the_o superfluous_a moisture_n they_o be_v drown_v in_o before_o the_o heat_n that_o bring_v they_o to_o this_o texture_n have_v be_v so_o gentle_a that_o it_o be_v no_o way_n likely_a that_o the_o igneous_a exhalation_n can_v themselves_o produce_v such_o a_o heat_n or_o at_o least_o that_o they_o shall_v adhere_v in_o such_o number_n as_o must_v be_v requisite_a to_o such_o a_o effect_n unless_o the_o texture_n of_o the_o salt_n of_o tartar_n or_o other_o body_n do_v peculiar_o dispose_v it_o to_o detain_v they_o since_o i_o have_v find_v by_o trial_n that_o shall_v ammoniac_a dissolve_v in_o water_n exper._n iv_o though_o boil_v up_o with_o a_o brisk_a fire_n to_o a_o dry_a salt_n will_v upon_o its_o be_v again_o dissolve_v in_o water_n not_o produce_v any_o heat_n but_o a_o very_a considerable_a degree_n of_o cold._n i_o shall_v add_v that_o though_o one_o will_v expect_v a_o great_a cognation_n between_o the_o particle_n of_o fire_n adhere_v to_o quicklime_n and_o those_o of_o high_a rectify_a spirit_n of_o wine_n which_o be_v of_o so_o igneous_a a_o nature_n as_o to_o be_v total_o inflammable_a yet_o i_o have_v not_o find_v that_o the_o affusion_n of_o alkaol_n of_o wine_n upon_o quicklime_n will_v produce_v any_o sensible_a incalescence_n or_o any_o visible_a dissolution_n or_o dissipation_n of_o the_o lime_n as_o common_a water_n will_v have_v do_v though_o it_o seem_v to_o be_v greedy_o enough_o soak_v in_o by_o the_o lump_n of_o lime_n and_o i_o further_o try_v that_o if_o on_o this_o lime_n so_o drench_v i_o pour_v cold_a water_n there_o ensue_v no_o manifest_a heat_n nor_o do_v i_o so_o much_o as_o find_v the_o lump_n swell_v and_o thereby_o break_v till_o some_o hour_n after_o which_o seem_v to_o argue_v that_o the_o texture_n of_o the_o lime_n be_v such_o as_o to_o admit_v the_o particle_n of_o the_o spirit_n of_o wine_n into_o some_o of_o its_o pore_n which_o be_v either_o large_a or_o more_o congruous_a without_o admit_v it_o into_o the_o most_o numerous_a one_o whereinto_o the_o liquor_n must_v be_v receive_v to_o be_v able_a sudden_o to_o dissipate_v the_o corpuscle_n of_o lime_n into_o their_o minute_a particle_n into_o which_o corpuscle_n it_o seem_v that_o the_o change_n that_o the_o aqueous_a particle_n receive_v by_o associate_a with_o the_o spirituous_a one_o make_v they_o far_o less_o fit_a to_o penetrate_v and_o move_v brisk_o there_o than_o if_o they_o have_v enter_v alone_o i_o make_v also_o a_o experiment_n that_o seem_v to_o favour_v our_o conjecture_n by_o show_v how_o much_o the_o disposition_n of_o lime_n to_o incalescence_n may_v depend_v upon_o a_o idoneous_a texture_n and_o the_o experiment_n as_o i_o find_v it_o register_v in_o one_o of_o my_o memorial_n be_v this_o exper._n v._n upon_o quicklime_n we_o put_v in_o a_o retort_n as_o much_o moderate_o strong_a spirit_n of_o wine_n as_o will_v drench_v it_o and_o swim_v a_o pretty_a way_n above_o it_o and_o then_o distil_v with_o a_o gentle_a fire_n we_o draw_v off_o some_o spirit_n of_o wine_n much_o strong_a than_o that_o which_o have_v be_v put_v on_o and_o then_o the_o phlegm_n follow_v it_o the_o fire_n be_v increase_v which_o bring_v over_o a_o good_a deal_n of_o phlegmatic_a strengthless_a liquor_n by_o which_o one_o will_v have_v think_v that_o the_o quicklime_n have_v be_v slake_v but_o when_o the_o remain_a matter_n have_v be_v take_v out_o of_o the_o retort_n and_o suffer_v to_o cool_v it_o appear_v to_o have_v a_o fiery_a disposition_n that_o it_o have_v not_o before_o for_o if_o any_o lump_n of_o it_o as_o big_a as_o a_o nutmeg_n or_o a_o almond_n be_v cast_v into_o the_o water_n it_o will_v hiss_v as_o if_o a_o coal_n of_o fire_n have_v be_v plunge_v into_o the_o liquor_n which_o be_v soon_o thereby_o sensible_o heat_v nay_o have_v keep_v divers_a lump_n of_o this_o prepare_a calx_fw-la well_o cover_v from_o the_o air_n for_o divers_a week_n to_o try_v whether_o it_o will_v retain_v this_o property_n i_o find_v as_o i_o expect_v that_o the_o calx_fw-la operate_v after_o the_o same_o manner_n if_o not_o more_o powerful_o for_o sometime_o especial_o when_o it_o be_v reduce_v to_o small_a piece_n it_o will_v upon_o its_o come_n into_o the_o water_n make_v such_o a_o brisk_a noise_n as_o may_v almost_o pass_v for_o a_o kind_n of_o explosion_n these_o phaenomena_n seem_v to_o argue_v that_o the_o disposition_n that_o lime_n have_v to_o grow_v hot_a with_o water_n depend_v much_o on_o some_o peculiar_a texture_n since_o the_o aqueous_a part_n that_o one_o will_v think_v capable_a of_o quench_v all_o or_o most_o of_o the_o atom_n of_o fire_n that_o be_v suppose_v to_o adhere_v to_o quicklime_n do_v not_o near_o so_o much_o weaken_v the_o disposition_n of_o it_o to_o incalescence_n as_o the_o accession_n of_o the_o spirituous_a corpuscle_n and_o their_o contexture_n with_o those_o of_o the_o lime_n increase_v that_o igneous_a disposition_n and_o that_o there_o may_v intervene_v such_o a_o association_n seem_v to_o i_o the_o more_o probable_a not_o only_o because_o much_o of_o the_o distil_a liquor_n be_v as_o phlegmatic_a as_o if_o it_o have_v be_v rob_v of_o its_o more_o active_a part_n but_o because_o i_o have_v sometime_o have_v spirit_n of_o wine_n come_v over_o with_o quicklime_n not_o in_o unobserved_a steam_n but_o white_a fume_n to_o which_o i_o shall_v add_v that_o beside_o that_o the_o taste_n and_o perhaps_o odour_n of_o the_o spirit_n of_o wine_n be_v often_o manifest_o change_v by_o a_o well-made_a distillation_n from_o quicklime_n i_o have_v sometime_o find_v that_o liquor_n to_o give_v the_o lime_n a_o kind_n of_o alcalizat_n penetrancy_n not_o to_o say_v fieriness_n of_o taste_n that_o be_v very_o brisk_a and_o remarkable_a but_o i_o will_v not_o undertake_v that_o every_o experimenter_n nor_o i_o myself_o shall_v always_o make_v trial_n of_o this_o kind_n with_o the_o same_o success_n that_o i_o have_v in_o those_o above_o recite_v in_o regard_n that_o i_o have_v find_v quick-limes_a to_o differ_v much_o not_o only_o according_a to_o the_o degree_n of_o their_o calcination_n and_o to_o their_o recentness_n but_o also_o and_o that_o especial_o according_a to_o the_o differ_a nature_n of_o the_o stone_n and_o other_o body_n calcine_v which_o observation_n engage_v i_o the_o more_o to_o propose_v what_o have_v be_v hitherto_o deliver_v about_o quicklime_n as_o only_a narrative_n and_o a_o conjecture_n which_o i_o now_o perceive_v have_v detain_v we_o so_o long_o that_o i_o be_o oblige_v to_o hasten_v to_o the_o remain_a experiment_n and_o to_o be_v the_o more_o succinct_a in_o deliver_v they_o exper._n vi_o and_o it_o will_v be_v convenient_a to_o begin_v with_o a_o instance_n or_o two_o of_o the_o production_n of_o heat_n wherein_o there_o appear_v not_o to_o intervene_v any_o thing_n in_o the_o part_n of_o the_o agent_n or_o patient_n but_o local_a motion_n and_o the_o natural_a effect_n of_o it_o and_o as_o to_o this_o sort_n of_o experiment_n a_o little_a attention_n and_o reflection_n may_v make_v some_o familiar_a phaenomenon_n apposite_a to_o our_o present_a purpose_n when_o for_o example_n a_o smith_n do_v hasty_o hammer_v a_o nail_n or_o such_o like_a piece_n of_o iron_n the_o hammer_v metal_n will_v grow_v exceed_o hot_a and_o yet_o
of_o vitriol_n and_o the_o file_n of_o steel_n the_o tinct_a spirit_n of_o wine_n be_v not_o at_o all_o impel_v up_o as_o before_o but_o rather_o after_o a_o while_n begin_v to_o subside_o and_o fall_v though_o very_o slow_o about_o a_o quarter_n of_o a_o inch_n the_o like_a experiment_n be_v try_v with_o powder_a sublimate_n in_o common_a water_n the_o liquor_n in_o the_o thermoscope_n be_v scarce_o at_o all_o sensible_o either_o raise_v or_o depress_v which_o argue_v the_o alteration_n as_o to_o heat_n or_o cold_a to_o have_v be_v either_o none_o or_o very_o inconsiderable_a have_v give_v warning_n at_o the_o begin_n of_o this_o section_n that_o in_o it_o i_o aim_v rather_o at_o offer_v various_a than_o numerous_a experiment_n about_o the_o production_n of_o heat_n i_o think_v what_o have_v be_v already_o deliver_v may_v allow_v i_o to_o take_v leave_n of_o this_o subject_a without_o mention_v divers_a instance_n that_o i_o can_v easy_o add_v but_o think_v it_o fit_a at_o present_a to_o omit_v for_o those_o afford_v i_o by_o trial_n about_o antiperistasis_n belong_v to_o a_o paper_n on_o that_o subject_a those_o that_o may_v be_v offer_v about_o potential_a heat_n in_o humane_a body_n will_v perchance_o be_v think_v but_o unnecessary_a after_o what_o have_v be_v say_v of_o potential_a coldness_n from_o which_o a_o attentive_a considerer_n may_v easy_o gather_v what_o according_a to_o our_o doctrine_n be_v to_o be_v say_v of_o the_o contrary_a quality_n and_o divers_a phaenomena_n which_o will_v have_v be_v of_o the_o most_o considerable_a i_o can_v have_v mention_v of_o the_o production_n of_o heat_n since_o in_o they_o that_o quality_n be_v the_o most_o exalt_a i_o reserve_v for_o the_o title_n of_o combustibleness_n and_o incombustibility_n have_v already_o suffer_v this_o collection_n or_o rather_o chaos_n of_o particular_n about_o the_o production_n of_o heat_n to_o swell_v to_o too_o great_a a_o bulk_n finis_fw-la experiment_n and_o observation_n about_o the_o mechanical_a production_n of_o taste_n by_o the_o honourable_a robert_n boyle_n esq_n fellow_n of_o the_o r._n society_n london_n print_v by_o e._n flesher_n for_o r._n davis_n bookseller_n in_o oxford_n 1675._o experiment_n and_o observation_n about_o the_o mechanical_a production_n of_o taste_n to_o make_v out_o the_o mechanical_a origine_fw-la or_o production_n of_o sapour_n as_o far_o as_o be_v necessary_a for_o my_o present_a purpose_n it_o will_v be_v expedient_a to_o premise_v in_o general_a that_o according_a to_o our_o notion_n of_o taste_n they_o may_v depend_v upon_o the_o bigness_n figure_n and_o motion_n of_o the_o saporifick_a corpuscle_n consider_v separately_z and_o as_o the_o affection_n of_o single_a and_o very_a minute_n particle_n of_o matter_n or_o else_o in_o a_o state_n of_o conjunction_n as_o two_o or_o more_o of_o these_o affection_n and_o the_o particle_n they_o belong_v to_o may_v be_v combine_v or_o associate_v either_o among_o themselves_o or_o with_o 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which_o enable_v a_o body_n by_o its_o operation_n to_o produce_v in_o we_o that_o sensation_n which_o we_o feel_v or_o perceive_v when_o we_o say_v we_o taste_v that_o this_o something_o whether_o you_o will_v call_v it_o a_o quality_n or_o whatever_o else_o it_o be_v that_o make_v or_o denominate_v a_o object_n saporous_a or_o rather_o if_o i_o may_v be_v allow_v a_o barbarous_a term_n saporifick_a may_v so_o depend_v upon_o the_o shape_n size_n motion_n and_o other_o mechanical_a affection_n of_o the_o small_a part_n of_o the_o taste_v body_n and_o result_v from_o the_o association_n of_o two_o or_o more_o of_o they_o not_o exclude_v their_o congruity_n or_o incongruity_n to_o the_o organ_n of_o taste_v may_v be_v make_v probable_a by_o the_o follow_a instance_n exper._n i._n to_o divide_v a_o body_n almost_o insipid_a into_o two_o body_n of_o very_a strong_a and_o very_a differ_v taste_n it_o be_v observe_v that_o saltpetre_n refine_v and_o by_o that_o purification_n free_v from_o the_o sea-salt_n that_o be_v wont_a to_o be_v mingle_v with_o it_o do_v rather_o cool_v the_o tongue_n than_o make_v any_o great_a saporifick_a impression_n on_o it_o and_o though_o i_o will_v not_o say_v that_o it_o be_v as_o some_o have_v think_v a_o insipid_a body_n yet_o the_o bitterishness_n which_o seem_v to_o be_v its_o proper_a taste_n be_v but_o very_o faint_a and_o languid_a and_o yet_o this_o almost_o insipid_a body_n be_v distil_v by_o the_o way_n of_o inflammation_n which_o i_o elsewhere_o teach_v or_o even_o by_o the_o help_n of_o a_o additament_n of_o such_o clay_n as_o be_v itself_o a_o tasteless_a body_n will_v afford_v a_o nitrous_a spirit_n that_o be_v extreme_o sharp_a or_o corrosive_n upon_o the_o tongue_n and_o will_v dissolve_v several_a metal_n themselves_o and_o a_o fix_a salt_n that_o be_v likewise_o very_o strong_o taste_v but_o of_o a_o taste_n altogether_o different_a from_o that_o of_o the_o spirit_n that_o be_v extreme_o sharp_a or_o corrosive_n upon_o the_o tongue_n and_o according_o this_o salt_n will_v dissolve_v divers_a compact_a body_n that_o the_o other_o will_v not_o work_v on_o and_o will_v precipitate_v divers_a metal_n and_o other_o concretes_n out_o of_o those_o solution_n that_o have_v be_v make_v of_o they_o by_o the_o spirit_n exper._n ii_o of_o two_o body_n the_o one_o high_o acid_n and_o corrosive_a and_o the_o other_o alkalizat_n and_o fiery_a to_o produce_v a_o body_n almost_o insipid_a this_o may_v be_v perform_v by_o the_o way_n i_o have_v elsewhere_o mention_v of_o compose_v saltpetre_n for_o if_o upon_o a_o liquor_n of_o fix_a nitre_n make_v per_fw-la deliquium_fw-la you_o wary_o drop_v good_a spirit_n of_o nitre_n till_o it_o be_v just_a enough_o to_o satiate_v the_o alkaly_n for_o if_o there_o be_v too_o much_o or_o too_o little_a the_o experiment_n may_v miscarry_v we_o may_v by_o a_o gentle_a evaporation_n and_o sometime_o without_o it_o and_o that_o in_o a_o few_o minute_n obtain_v crystal_n which_o be_v dry_v after_o they_o have_v be_v if_o it_o be_v needful_a free_v from_o any_o adhere_a particle_n not_o of_o their_o own_o nature_n will_v have_v upon_o the_o tongue_n neither_o a_o sharp_a nor_o a_o alkalizate_a taste_n but_o that_o faint_a and_o scarce_o sensible_a bitterness_n that_o belong_v to_o saltpetre_n if_o it_o be_v pure_a saltpetre_n for_o the_o impure_a may_v perhaps_o strong_o relish_v of_o the_o common_a salt_n that_o be_v usual_o contain_v in_o it_o the_o like_a production_n of_o saltpetre_n we_o have_v sometime_o make_v in_o far_o less_o time_n and_o sometime_o indeed_o in_o a_o trice_n by_o substitute_v in_o stead_n of_o the_o fix_a salt_n of_o nitre_n the_o saline_a part_n of_o good_a pot_n ash_n careful_o free_v by_o solution_n and_o filtration_n from_o the_o earthy_a and_o feculent_a one_o i_o have_v sometime_o consider_v whether_o the_o phaenomena_n of_o these_o two_o experiment_n may_v not_o be_v explicate_v by_o suppose_v they_o to_o arise_v from_o the_o new_a 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when_o that_o adhesion_n cease_v and_o the_o leaf_n sit_v but_o loose_o on_o a_o wind_n no_o strong_a than_o that_o they_o resist_v before_o will_v with_o ease_n blow_v they_o off_o and_o perhaps_o carry_v they_o up_o a_o good_a way_n into_o the_o air._n but_o here_o note_v that_o it_o be_v not_o without_o some_o cause_n that_o i_o add_v above_o that_o in_o a_o fluid_a body_n the_o part_n shall_v at_o least_o be_v unite_v in_o such_o a_o manner_n as_o do_v not_o much_o indispose_v they_o to_o be_v separate_v for_o it_o be_v not_o impossible_a that_o the_o part_n of_o a_o body_n may_v by_o the_o figure_n and_o smoothness_n of_o the_o surface_n be_v sufficient_o apt_a to_o be_v put_v into_o motion_n and_o yet_o be_v indispose_v to_o admit_v such_o a_o motion_n as_o will_v total_o separate_v they_o and_o make_v they_o fly_v up_o into_o the_o air._n as_o if_o you_o take_v two_o piece_n of_o very_o flat_a and_o well-polished_n marble_n or_o glass_n and_o lay_v they_o one_o upon_o the_o 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to_o reduce_v it_o into_o minute_n part_n and_o caeteris_fw-la paribus_fw-la the_o more_o minute_n they_o be_v the_o better_a that_o the_o bring_v a_o body_n into_o very_a minute_n part_n may_v much_o conduce_v to_o the_o volatilize_n of_o it_o may_v be_v gather_v from_o the_o vulgar_a practice_n of_o the_o chemist_n who_o when_o they_o will_v sublime_a or_o distil_v antimony_n shall_v ammoniac_a sea-salt_n nitre_n etc._n etc._n be_v wont_a to_o beat_v they_o to_o powder_n to_o facilitate_v their_o receive_v a_o further_a comminution_n by_o the_o action_n of_o the_o fire_n and_o here_o i_o observe_v that_o in_o some_o body_n this_o comminution_n ought_v not_o to_o be_v make_v only_o at_o first_o but_o to_o be_v continue_v afterward_o for_o chemist_n find_v by_o experience_n though_o perhaps_o without_o consider_v the_o reason_n of_o it_o that_o sea-salt_n and_o nitre_n will_v very_o hardly_o afford_v their_o spirit_n in_o distillation_n without_o they_o be_v mingle_v with_o powder_a 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bring_v they_o to_o touch_v one_o another_o according_a to_o large_a portion_n of_o their_o surface_n or_o by_o both_o these_o way_n conjoint_o or_o by_o some_o other_o to_o procure_v the_o firm_a cohaesion_n of_o so_o many_o particle_n that_o the_o result_a corpuscle_n be_v too_o big_a or_o heavy_a to_o be_v by_o the_o degree_n of_o fire_n wherein_o they_o be_v say_v to_o be_v fix_v drive_v up_o into_o the_o air._n finis_fw-la experiment_n and_o note_n about_o the_o mechanical_a origine_fw-la or_o production_n of_o corrosiveness_n and_o corrosibility_n by_o the_o honourable_a robert_n boyle_n esq_n fellow_n of_o the_o r._n society_n london_n print_v by_o e._n flesher_n for_o r._n davis_n bookseller_n in_o oxford_n 1675._o experiment_n and_o note_n about_o the_o mechanical_a production_n of_o corrosiveness_n and_o corrosibility_n sect_n i._o about_o the_o mechanical_a origine_fw-la of_o corrosiveness_n i_o do_v not_o in_o the_o follow_a note_n treat_v of_o corrosiveness_n in_o their_o 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