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water_n half_a ounce_n small_a 3,273 5 6.7851 4 false
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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A29007 New experiments physico-mechanical, touching the air; New experiments physico-mechanical, touching the spring of the air, and its effects Boyle, Robert, 1627-1691.; Sharrock, Robert, 1630-1684.; Boyle, Robert, 1627-1691. Defence of the doctrine touching the spring and weight of the air.; Boyle, Robert, 1627-1691. Examen of Mr. T. Hobbes his Dialogus physicus de naturâ aëris. 1682 (1682) Wing B4000_PARTIAL; Wing B3942_PARTIAL; ESTC R23366 337,085 461

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ratione_fw-la erat_fw-la longitudo_fw-la sive_fw-la altitudo_fw-la camerae_fw-la ah_o 5_o pedum_n latitudine_fw-la 3_o ferè_fw-la ex_fw-la lateribus_fw-la constructa_fw-la in_fw-la figure_n medio_fw-la duo_fw-la tenebat_fw-la diaphragmata_fw-la cd_o &_o of_o in_o modum_fw-la cribri_fw-la pluribus_fw-la foraminibus_fw-la pertusi_fw-la paulo_n infra_fw-la canalis_fw-la g_o aquam_fw-la advehens_fw-la inserebatur_fw-la in_o h_n eidem_fw-la epistomium_fw-la parabat_fw-la exitum_fw-la aqua_fw-la itaque_fw-la per_fw-la canalem_fw-la g_o maximo_fw-la impetu_fw-la ruens_fw-la vehementissimum_fw-la ventum_fw-la mox_fw-la intus_fw-la excitabat_fw-la qui_fw-la ventus_fw-la nimiâ_fw-la humiditate_fw-la imbutus_fw-la ut_fw-la purior_fw-la exiret_fw-la sicciórque_fw-la diaphragmata_fw-la illa_fw-la in_o cribri_fw-la modum_fw-la pertusa_fw-la ordinata_fw-la sunt_fw-la intra_fw-la haec_fw-la enim_fw-la aquae_fw-la vehemens_fw-la agitatio_fw-la rupta_fw-la fractáque_fw-la aerem_fw-la puriorem_fw-la 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be_v thorough_o wet_v in_o fair_a water_n that_o the_o side_n of_o it_o be_v squeeze_v together_o there_o may_v be_v no_o air_n leave_v in_o its_o fold_n as_o indeed_o we_o can_v not_o afterward_o upon_o trial_n discern_v any_o the_o neck_n of_o this_o bladder_n be_v strong_o tie_v about_o that_o of_o a_o small_a glass_n capable_a of_o hold_v five_o full_a drachma_n of_o water_n the_o bladder_n be_v first_o so_o compress_v that_o all_o the_o include_v air_n be_v only_o in_o the_o glass_n without_o be_v press_v there_o then_o the_o pump_n be_v set_v on_o work_n after_o a_o few_o exsuction_n the_o air_n in_o the_o little_a viol_n begin_v to_o dilate_v itself_o and_o produce_v a_o small_a tumour_n in_o the_o neck_n of_o the_o bladder_n and_o as_o the_o ambient_fw-la air_n be_v more_o and_o more_o draw_v away_o so_o the_o include_v air_n penetrate_v far_o and_o far_o into_o the_o bladder_n and_o by_o degree_n list_v up_o the_o side_n and_o display_v its_o fold_n till_o at_o length_n it_o 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receiver_n and_o cause_v the_o pump_n to_o be_v set_v on_o work_n the_o event_n be_v that_o at_o the_o first_o exsuction_n of_o the_o air_n there_o appear_v not_o any_o expansion_n of_o the_o bubble_n comparable_a to_o what_o appear_v at_o the_o second_o and_o that_o upon_o a_o very_a few_o exsuction_n the_o bubble_n reach_v as_o low_a as_o the_o surface_n of_o the_o subjacent_a water_n give_v we_o cause_n to_o think_v that_o if_o our_o pipe_n have_v not_o be_v break_v it_o will_v have_v expanded_a itself_o much_o far_o wherefore_o we_o take_v out_o the_o little_a tube_n and_o find_v that_o beside_o the_o twenty_o six_o division_n former_o mention_v the_o glass_n bubble_n and_o some_o part_n of_o the_o pipe_n to_o which_o the_o divide_a parchment_n do_v not_o reach_v amount_v to_o six_o division_n more_o whereby_o it_o appear_v that_o the_o air_n have_v take_v up_o one_o and_o thirty_o time_n as_o much_o room_n as_o before_o and_o yet_o seem_v capable_a of_o a_o much_o great_a 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time_n as_o big_a at_o one_o end_n as_o the_o other_o this_o pipe_n which_o be_v thirty_o inch_n long_o be_v hermetical_o seal_v at_o the_o slender_a end_n be_v almost_o fill_v with_o water_n and_o after_o the_o above-related_n manner_n a_o bubble_n be_v convey_v to_o the_o top_n of_o it_o and_o the_o open_a extreme_a be_v put_v into_o a_o viol_n that_o have_v a_o little_a fair_a water_n at_o the_o bottom_n then_o the_o cover_v by_o mean_n of_o a_o small_a hole_n purposely_o make_v in_o it_o for_o the_o glass_n pipe_n to_o stand_v out_o at_o be_v cement_v on_o to_o the_o receiver_n and_o the_o pump_n be_v set_v on_o work_n after_o some_o exsuction_n not_o only_o the_o air_n manifest_o appear_v extend_v below_o the_o surface_n of_o the_o subjacent_a water_n but_o one_o of_o the_o bystander_n affirm_v that_o he_o see_v some_o bubble_n come_v out_o at_o the_o bottom_n of_o the_o pipe_n and_o break_v through_o the_o water_n this_o do_v we_o leave_v off_o pump_v and_o observe_v how_o at_o 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scale_n such_o as_o goldsmith_n use_n to_o weigh_v cold_a coin_n in_o and_o weigh_v the_o tube_n and_o water_n in_o it_o we_o find_v they_o to_o amount_v to_o one_o ounce_n thirty_o grain_n and_o a_o half_a then_o we_o pour_v in_o as_o much_o water_n as_o serve_v to_o fill_v up_o the_o tube_n wherein_o before_o we_o have_v leave_v as_o much_o space_n unfilled_a up_o as_o be_v possess_v by_o the_o bubble_n and_o weigh_v again_o the_o pipe_n and_o water_n we_o find_v the_o weight_n increase_v only_o by_o one_o grain_n last_o pour_v out_o the_o water_n and_o careful_o free_v the_o pipe_n from_o it_o which_o yet_o we_o can_v not_o perfect_o do_v we_o weigh_v the_o glass_n alone_o and_o find_v it_o to_o want_v two_o drachma_n and_o thirty_o two_o grain_n of_o its_o former_a weight_n so_o that_o the_o bubble_n of_o air_n take_v up_o the_o room_n but_o of_o one_o grain_n in_o weight_n of_o water_n it_o appear_v that_o the_o air_n by_o its_o own_o 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d be_v so_o rarify_v as_o to_o take_v up_o one_o hundred_o fifty_o two_o time_n as_o much_o room_n as_o it_o do_v before_o though_o it_o be_v then_o compress_v by_o nothing_o but_o the_o ordinary_a pressure_n of_o the_o contiguous_a air._n i_o know_v not_o whether_o it_o be_v requisite_a to_o take_v notice_n that_o this_o experiment_n be_v make_v indeed_o in_o a_o moist_a night_n but_o in_o a_o room_n in_o who_o chimney_n there_o be_v burn_v a_o good_a fire_n which_o do_v perhaps_o somewhat_o rarify_v the_o air_n of_o which_o the_o bubble_n consist_v it_o have_v seem_v almost_o incredible_a which_o be_v relate_v by_o the_o industrious_a mersennus_n that_o the_o air_n by_o the_o violence_n of_o heat_n though_o as_o great_a as_o our_o vessel_n can_v support_v without_o fusion_n can_v be_v so_o dilate_v as_o to_o take_v up_o seventy_o time_n as_o much_o room_n as_o before_o wherefore_o because_o we_o be_v willing_a to_o have_v a_o confirmation_n of_o so_o strange_a a_o phaenomenon_n we_o once_o 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partly_o also_o that_o it_o may_v appear_v that_o if_o our_o experiment_n have_v not_o be_v so_o accurate_o make_v as_o with_o fit_a instrument_n may_v perhaps_o be_v possible_a yet_o the_o expansion_n of_o the_o air_n be_v likely_a to_o be_v rather_o great_a then_o lesser_a than_o we_o have_v make_v it_o since_o the_o air_n be_v able_a to_o press_v away_o the_o water_n at_o the_o bottom_n of_o the_o pipe_n though_o that_o be_v about_o two_o inch_n below_o the_o surface_n of_o the_o water_n that_o be_v then_o in_o the_o viol_n and_o will_v have_v be_v at_o least_o as_o high_a in_o the_o pipe_n if_o the_o water_n have_v only_o subside_v and_o not_o be_v depress_v so_o that_o it_o seem_v not_o unlikely_a that_o if_o the_o experiment_n can_v be_v so_o make_v as_o that_o the_o expansion_n of_o the_o air_n may_v not_o be_v resist_v by_o the_o neighbour_a body_n it_o will_v yet_o enlarge_v its_o bound_n and_o perhaps_o stretch_v itself_o to_o two_o hundred_o time_n its_o former_a bulk_n if_o not_o more_o however_o what_o we_o have_v now_o try_v will_n i_o hope_v suffice_v to_o hinder_v divers_a of_o the_o phaenomena_n of_o our_o engine_n from_o be_v disinherit_v since_o in_o that_o part_n of_o the_o atmosphere_n we_o live_v in_o that_o which_o we_o call_v the_o free_a air_n and_o presume_v to_o be_v so_o uncompress_v be_v crowd_v into_o so_o very_a small_a a_o part_n of_o that_o space_n which_o if_o it_o be_v not_o hinder_v it_o will_v possess_v we_o will_v glad_o have_v try_v also_o whether_o the_o air_n at_o its_o great_a expansion_n can_v be_v far_o rarify_v by_o heat_n but_o do_v what_o we_o can_v our_o receiver_n leak_v too_o fast_o to_o let_v we_o give_v ourselves_o any_o satisfaction_n in_o that_o particular_a experiment_n vii_o to_o discover_v likewise_o by_o the_o mean_n of_o that_o pressure_n of_o the_o air_n both_o the_o strength_n of_o glass_n and_o how_o much_o interest_n the_o figure_n of_o a_o body_n may_v have_v in_o its_o great_a or_o lesser_a resistance_n to_o the_o pressure_n of_o other_o body_n we_o make_v these_o far_a trial_n we_o cause_v to_o be_v blow_v with_o a_o lamp_n a_o round_a glass_n bubble_n capable_a of_o contain_v by_o guess_n about_o five_o ounce_n of_o water_n with_o a_o slender_a neck_n about_o the_o bigness_n of_o a_o swan_n quill_n and_o it_o be_v purposely_o blow_v very_o thin_a as_o viol_n make_v with_o lamp_n be_v wont_a to_o be_v that_o the_o thinness_n of_o the_o matter_n may_v keep_v the_o roundness_n of_o the_o figure_n from_o make_v the_o vessel_n too_o strong_a then_o have_v moderate_o empty_v the_o receiver_n and_o take_v it_o out_o of_o the_o pump_n we_o speedy_o apply_v to_o the_o orifice_n of_o the_o bottom_n of_o it_o the_o neck_n of_o the_o new_o mention_v glass_n careful_o stop_v the_o cranny_n with_o melt_a plaster_n that_o no_o air_n may_v get_v in_o at_o they_o and_o after_o turn_v the_o key_n of_o the_o stop-cock_n we_o make_v a_o free_a passage_n for_o the_o air_n to_o pass_v out_o of_o the_o 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receiver_n the_o take_v off_o its_o pressure_n will_v not_o disclose_v bubble_n as_o before_o and_o according_o the_o air_n be_v again_o pump_v out_o the_o water_n in_o the_o tube_n descend_v as_o former_o but_o for_o a_o great_a while_o we_o scarce_o see_v one_o bubble_n appear_v only_o when_o the_o receiver_n have_v be_v very_o much_o exhaust_v and_o the_o water_n be_v fall_v very_o low_a there_o appear_v near_o the_o bottom_n of_o the_o tube_n certain_a little_a bubble_n which_o seem_v to_o consist_v of_o such_o parcel_n of_o air_n as_o have_v not_o by_o reason_n of_o their_o smallness_n get_v up_o to_o the_o top_n of_o the_o water_n with_o the_o more_o bulky_a and_o vigorous_a one_o and_o that_o which_o be_v not_o inconsiderable_a be_v
the_o figure_n of_o the_o vessel_n may_v have_v a_o interest_n in_o this_o odd_a phaenomenon_n we_o take_v the_o late_o mention_v philosophical_a egg_n and_o another_o not_o much_o differ_v from_o it_o the_o former_a we_o fill_v up_o with_o distil_a rain-water_n to_o the_o old_a mark_n and_o into_o the_o latter_a we_o put_v a_o long_o cylinder_n or_o rod_n of_o solid_a glass_n to_o straiten_v the_o cavity_n of_o the_o neck_n by_o almost_o fill_v it_o up_o and_o then_o pour_v some_o distil_a water_n into_o that_o also_o till_o it_o reach_v within_o some_o finger_n breadth_n of_o the_o top_n the_o egg_n be_v let_v down_o into_o the_o receiver_n in_o this_o experiment_n the_o air_n be_v so_o far_o draw_v forth_o before_o there_o appear_v any_o bubble_n in_o either_o of_o the_o glass_n that_o the_o disparity_n betwixt_o this_o and_o common_a water_n be_v manifest_a enough_o but_o at_o length_n when_o the_o air_n be_v almost_o quite_o pump_v out_o the_o bubble_n begin_v to_o disclose_v 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nice_a experiment_n to_o consider_v variety_n of_o circumstance_n experiment_n xxiv_o after_o have_v thus_o discover_v what_o operation_n the_o exsuction_n of_o the_o ambient_fw-la air_n have_v upon_o water_n we_o think_v good_a to_o try_v also_o what_o change_n will_v happen_v in_o other_o liquor_n upon_o the_o like_a take_v off_o the_o pressure_n of_o the_o external_a air._n we_o take_v then_o a_o glass_n egg_n somewhat_o big_a than_o a_o turkey_n egg_n which_o have_v a_o long_a neck_n or_o stem_n of_o about_o a_o â…“_n part_n of_o a_o inch_n in_o diameter_n and_o fill_v it_o up_o with_o salad-oil_n until_o it_o reach_v above_o half_a way_n to_o the_o top_n of_o the_o neck_n we_o enclose_v it_o in_o the_o receiver_n together_o with_o common_a water_n in_o a_o resemble_v vessel_n that_o we_o may_v the_o better_o compare_v together_o the_o operation_n of_o the_o exsuction_n of_o the_o air_n upon_o those_o two_o liquor_n the_o pump_n be_v set_v on_o work_n there_o begin_v to_o appear_v bubble_n in_o the_o oil_n much_o soon_o than_o in_o the_o water_n and_o afterward_o they_o also_o ascend_v much_o more_o copious_o in_o the_o former_a liquor_n than_o in_o the_o latter_a nay_o and_o when_o by_o have_v quite_o tire_v the_o pumper_n and_o almost_o our_o own_o patience_n we_o give_v over_o the_o bubble_n rise_v almost_o if_o not_o altogether_o in_o as_o great_a number_n as_o ever_o insomuch_o that_o none_o of_o the_o various_a liquor_n we_o try_v either_o before_o or_o since_o seem_v to_o abound_v more_o with_o aerial_a particle_n than_o do_v this_o oil_n in_o which_o it_o be_v far_o remarkable_a that_o between_o the_o time_n it_o be_v set_v into_o the_o receiver_n and_o that_o at_o which_o we_o can_v get_v ready_a to_o pump_v it_o subside_v notable_o by_o guess_n about_o half_a a_o inch_n below_o the_o mark_v it_o reach_v before_o it_o be_v put_v in_o after_o this_o express_a oil_n we_o make_v trial_n of_o a_o distil_a one_o and_o for_o that_o purpose_n make_v choice_n of_o the_o common_a oil_n or_o spirit_n for_o in_o the_o shop_n where_o it_o be_v sell_v the_o same_o liquor_n be_v promiscuous_o call_v by_o either_o name_n of_o turpentine_n because_o it_o be_v only_o of_o that_o chemical_a oil_n we_o have_v a_o sufficient_a quantity_n which_o be_v put_v into_o a_o small_a glass_n bubble_n with_o a_o slender_a neck_n so_o as_o to_o fill_v it_o about_o two_o inch_n from_o the_o top_n do_v upon_o the_o evacuate_n of_o the_o receiver_n present_v we_o with_o great_a store_n of_o bubble_n most_o of_o which_o rise_v from_o the_o bottom_n expanded_a themselves_o exceed_o in_o their_o ascent_n and_o make_v the_o liquor_n in_o the_o neck_n to_o swell_v so_o much_o by_o degree_n that_o at_o length_n it_o divers_a time_n run_v over_o at_o the_o top_n by_o which_o mean_n we_o be_v hinder_v from_o be_v able_a to_o discern_v upon_o the_o let_n in_o of_o the_o air_n how_o much_o the_o subsidence_n of_o the_o oil_n below_o the_o first_o mark_n be_v due_a to_o the_o recess_n of_o the_o bubble_n have_v likewise_o a_o mind_n to_o try_v whether_o as_o strong_a a_o solution_n of_o salt_n of_o tartar_n in_o fair_a water_n as_o can_v be_v make_v we_o have_v then_o no_o oil_n of_o tartar_n per_fw-la deliquium_fw-la at_o hand_n though_o it_o be_v account_v quicksilver_n except_v the_o heavy_a of_o liquor_n will_v afford_v we_o any_o bubble_n we_o put_v in_o a_o glass_n egg_n full_a of_o it_o at_o the_o same_o time_n with_o other_o liquor_n and_o find_v that_o they_o do_v long_o yield_v store_n of_o bubble_n before_o any_o discover_v themselves_o in_o the_o liquor_n of_o tartar_n and_o have_v pursue_v the_o experiment_n it_o appear_v that_o of_o all_o the_o liquor_n we_o make_v trial_n of_o this_o afford_v the_o few_o and_o small_a bubble_n spirit_n of_o vinegar_n be_v try_v after_o the_o same_o manner_n exhibit_v a_o moderate_a number_n of_o bubble_n but_o scarce_o any_o thing_n else_o worth_a the_o mention_v nor_o can_v we_o in_o red_a wine_n try_v in_o a_o glass_n egg_n take_v notice_n of_o any_o thing_n very_o observable_a for_o though_o upon_o the_o exsuction_n of_o the_o air_n the_o bubble_n ascend_v in_o this_o liquor_n as_o it_o be_v in_o shoal_n and_o shift_v place_n among_o themselves_o in_o their_o ascent_n yet_o the_o intumescence_n of_o the_o whole_a bulk_n of_o the_o liquor_n be_v scarce_o at_o all_o sensible_a the_o bubble_n most_o common_o break_v very_o soon_o after_o their_o arrival_n at_o the_o top_n where_o during_o their_o stay_n they_o compose_v a_o kind_n of_o shallow_a froth_n which_o alone_o appear_v high_o in_o the_o neck_n of_o the_o glass_n than_o be_v the_o wine_n when_o it_o be_v let_v down_o neither_o yet_o do_v milk_n convey_v into_o our_o pneumatical_a vessel_n present_v we_o with_o any_o thing_n memorable_a save_o
that_o as_o it_o seem_v by_o reason_n of_o some_o unctuousness_n of_o the_o liquor_n the_o bubble_n not_o easy_o break_v at_o the_o top_n and_o thrust_v up_o one_o another_o make_v the_o intumescence_n appear_v much_o great_a than_o that_o of_o common_a water_n we_o likewise_o convey_v hen_n egg_n into_o the_o receiver_n but_o after_o the_o exsuction_n of_o the_o air_n take_v they_o out_o whole_a again_o that_o which_o invite_v we_o to_o put_v they_o in_o be_v that_o as_o perhaps_o we_o mention_v in_o other_o paper_n we_o have_v among_o other_o experiment_n of_o cold_a make_v egg_n burst_v by_o freeze_v they_o within_o door_n with_o snow_n and_o salt_n the_o ice_n into_o which_o the_o aqueous_a part_n of_o the_o egg_n be_v turn_v by_o the_o cold_a so_o distend_v probable_o by_o reason_n of_o the_o numerous_a bubble_n wont_a to_o be_v observable_a in_o ice_n the_o outward_a part_n of_o the_o egg_n that_o it_o usual_o crack_v the_o shell_n though_o the_o inner_a membrane_n that_o involve_v the_o several_a liquor_n of_o the_o egg_n because_o it_o will_v stretch_v and_o yield_v remain_v unbroken_a and_o hereupon_o we_o imagine_v that_o in_o our_o engine_n it_o may_v appear_v whether_o or_o no_o there_o be_v any_o considerable_a spring_n either_o in_o any_o of_o the_o liquor_n or_o in_o any_o other_o more_o spirituous_a substance_n include_v in_o the_o egg._n we_o take_v also_o some_o spirit_n of_o urine_n careless_o enough_o deflegm_v and_o put_v it_o into_o the_o same_o glass_n first_o careful_o scour_v and_o cleanse_v wherein_o we_o have_v put_v the_o oil_n olive_n abovementioned_a we_o take_v also_o another_o glass_n differ_v from_o a_o glass_n egg_n only_o in_o that_o its_o bottom_n be_v flat_a and_o fill_v it_o up_o to_o about_o â…”_n of_o the_o neck_n which_o be_v wide_a than_o that_o of_o the_o egg_n with_o rectify_a spirit_n of_o wine_n we_o take_v also_o another_o glass_n egg_n and_o have_v fill_v it_o with_o common_a water_n till_o it_o reach_v to_o the_o middle_n of_o the_o neck_n we_o pour_v to_o it_o of_o the_o same_o spirit_n of_o wine_n till_o it_o reach_v about_o a_o inch_n high_o these_o three_o glass_n have_v mark_n set_v on_o they_o over_o against_o the_o edge_n of_o the_o contain_v liquor_n be_v put_v into_o the_o receiver_n and_o that_o beginning_n to_o be_v evacuate_v the_o bubble_n in_o all_o the_o three_o liquor_n begin_v to_o appear_v the_o mixture_n of_o the_o spirit_n of_o wine_n and_o water_n disclose_v a_o great_a store_n of_o bubble_n especial_o towards_o the_o top_n but_o scarce_o afford_v we_o any_o thing_n worth_a the_o remember_n the_o spirit_n of_o urine_n appear_v to_o swell_v near_o a_o inch_n and_o a_o half_a above_o the_o mark_n and_o beside_o that_o send_v forth_o store_n of_o bubble_n which_o make_v a_o kind_n of_o froth_n at_o the_o upper_a part_n of_o it_o and_o above_o that_o spume_n there_o appear_v eight_o or_o ten_o great_a bubble_n one_o above_o another_o in_o a_o very_a decent_a order_n each_o of_o they_o constitute_v as_o it_o be_v a_o cylinder_n of_o about_o half_a a_o inch_n high_a and_o as_o broad_a as_o the_o internal_a cavity_n of_o the_o neck_n so_o that_o all_o the_o upper_a part_n of_o the_o neck_n for_o these_o bubble_n reach_v to_o the_o top_n seem_v to_o be_v divide_v into_o almost_o equal_a part_n by_o certain_a diaphragme_n consist_v of_o the_o coat_n of_o the_o bubble_n who_o edge_n appear_v like_o so_o many_o ring_n suspend_v one_o above_o another_o in_o the_o spirit_n of_o wine_n there_o do_v arise_v a_o great_a multitude_n of_o bubble_n even_o till_o weariness_n do_v make_v we_o give_v over_o the_o experiment_n and_o in_o these_o bubble_n two_o or_o three_o thing_n be_v remarkable_a as_o first_o that_o they_o ascend_v with_o a_o very_a notable_a celerity_n next_o that_o be_v arrive_v at_o the_o top_n they_o make_v no_o stay_n there_o and_o yet_o notwithstanding_o the_o great_a thinness_n and_o spirituousness_n of_o the_o liquor_n do_v before_o they_o 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find_v there_o do_v only_o arise_v as_o former_o a_o pretty_a number_n of_o small_a bubble_n that_o make_v there_o no_o sensible_a froth_n upon_o the_o surface_n of_o the_o distil_a vinegar_n there_o be_v make_v two_o or_o three_o exsuction_n of_o the_o air_n upon_o which_o there_o emerge_v from_o the_o coral_n such_o a_o multitude_n of_o bubble_n as_o make_v the_o whole_a body_n of_o the_o menstruum_fw-la appear_v white_a and_o soon_o aster_v a_o froth_n as_o big_a as_o all_o the_o rest_n of_o the_o liquor_n be_v see_v to_o swim_v upon_o it_o and_o the_o menstruum_fw-la plain_o appear_v to_o boil_v in_o the_o glass_n like_o a_o seethe_a pot._n and_o though_o if_o we_o desist_v but_o one_o minute_n from_o pump_v the_o decrement_n of_o the_o froth_n and_o ebullition_n upon_o the_o get_n in_o of_o a_o little_a air_n at_o some_o leak_n or_o other_o seem_v to_o argue_v that_o the_o removal_n of_o the_o pressure_n of_o the_o external_a air_n be_v the_o cause_n or_o at_o least_o the_o 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into_o the_o pump_n the_o effervescence_n will_v begin_v afresh_o though_o the_o pump_n be_v ply_v for_o a_o pretty_a while_n together_o which_o seem_v to_o argue_v that_o the_o boil_a of_o the_o water_n proceed_v from_o hence_o that_o upon_o the_o withdraw_a the_o pressure_n of_o the_o incumbent_a air_n either_o the_o fiery_a corpuscle_n or_o rather_o the_o vapour_n agitate_a by_o the_o heat_n in_o the_o water_n which_o last_o what_o we_o have_v former_o note_v touch_v the_o raresy_v water_n of_o a_o aeolipile_n manifest_a to_o be_v capable_a of_o a_o elastical_a power_n be_v permit_v to_o expand_v themselves_o mighty_o in_o the_o evacuated_a receiver_n and_o do_v in_o their_o tumultuous_a dilatation_n list_v up_o as_o the_o air_n be_v wont_a to_o do_v the_o uppermost_a part_n of_o the_o water_n and_o turn_v it_o into_o bubble_n make_v the_o water_n appear_v boil_v this_o conjecture_n be_v far_o confirm_v by_o these_o additional_a circumstance_n first_o the_o effervescence_n be_v confine_v to_o the_o upper_a part_n of_o the_o water_n the_o low_a remain_v quiet_a unless_o the_o liquor_n be_v but_o shallow_a next_o although_o sometime_o as_o be_v already_o note_v the_o ebullition_n begin_v again_o after_o it_o have_v cease_v a_o pretty_a while_n which_o seem_v to_o infer_v that_o some_o concurrent_a cause_n whatever_o that_o be_v do_v a_o little_a modify_v the_o operation_n of_o heat_n yet_o when_o the_o water_n in_o the_o viol_n can_v by_o no_o pump_v be_v bring_v to_o boil_v any_o more_o the_o selfsame_a water_n be_v in_o the_o very_a same_o viol_n warm_v again_o and_o reconvey_v into_o the_o pneumatical_a glass_n be_v quick_o bring_v to_o boil_v afresh_o and_o that_o vehement_o and_o long_o enough_o not_o to_o mention_v that_o a_o new_a parcel_n take_v out_o of_o the_o same_o parcel_n of_o the_o boil_a
and_o time_n on_o matter_n than_o word_n and_o so_o be_v just_o impede_v from_o learn_v language_n and_o because_o as_o i_o may_v judge_v the_o noble_a author_n be_v willing_a to_o oblige_v all_o man_n he_o have_v already_o provide_v that_o this_o piece_n shall_v short_o be_v do_v into_o latin_a that_o so_o it_o may_v come_v home_o to_o divers_a worthy_a person_n in_o its_o stream_n who_o can_v travel_v to_o find_v it_o out_o in_o its_o first_o origine_fw-la have_v therefore_o leave_v so_o to_o do_v i_o can_v forbear_v to_o give_v the_o world_n the_o advertisement_n of_o this_o latin_a edition_n lest_o some_o skilful_a artist_n shall_v take_v needless_a pain_n about_o a_o work_n which_o will_v ere_o long_o by_o god_n furtherance_n be_v do_v to_o his_o hand_n for_o such_o unprofitable_a expense_n of_o study_n have_v too_o frequent_o happen_v and_o too_o much_o to_o the_o disadvantage_n of_o learning_n for_o want_v of_o a_o sufficient_a correspondence_n and_o intercourse_n between_o such_o as_o be_v exercise_v in_o the_o mine_n of_o wisdom_n this_o be_v all_o the_o trouble_n i_o shall_v at_o present_a give_v you_o nor_o shall_v i_o need_v mind_n you_o if_o you_o have_v a_o true_a gust_n for_o the_o book_n you_o read_v to_o have_v a_o honour_n and_o thankful_a regard_n to_o the_o person_n that_o have_v favour_v we_o with_o the_o communication_n of_o these_o his_o trial_n and_o be_v manifest_o so_o great_a a_o patron_n and_o friend_n to_o experimental_a learning_n and_o all_o true_a wisdom_n for_o shall_v you_o fail_v in_o this_o you_o may_v deserve_o be_v deprive_v of_o some_o other_o observation_n on_o the_o same_o subject_n which_o the_o author_n i_o hear_v have_v make_v since_o the_o finish_n of_o this_o treatise_n i_o desire_v to_o be_v excuse_v that_o i_o do_v not_o make_v excuse_n for_o the_o slowness_n of_o the_o publication_n hope_v that_o the_o long_a expectation_n you_o have_v have_v of_o it_o will_v enhance_v and_o not_o diminish_v your_o delight_n in_o the_o enjoyment_n of_o a_o piece_n like_a to_o be_v among_o the_o student_n in_o accurate_a philosophy_n of_o so_o general_a acceptance_n farewell_n r._n sh._n a_o summary_n of_o the_o chief_a matter_n treat_v of_o in_o this_o epistolical_a discourse_n the_o proaemium_fw-la whereinis_fw-la be_v set_v down_o the_o occasion_n of_o this_o discourse_n 1._o the_o motive_n that_o induce_v the_o author_n thereunto_o 2._o the_o hint_n he_o receive_v 3._o the_o thing_n wherein_o this_o engine_n excel_v any_o that_o have_v yet_o be_v make_v use_n of_o 4._o the_o description_n of_o the_o engine_n and_o its_o part_n 5_o etc._n etc._n the_o way_n of_o prepare_v and_o use_v it_o 8_o etc._n etc._n the_o division_n of_o the_o experiment_n triable_a thereby_o into_o two_o sort_n and_o the_o difficulty_n of_o exclude_v the_o air._n 10_o etc._n etc._n the_o first_o experiment_n touch_v the_o manner_n of_o pump_v out_o the_o air_n and_o by_o what_o degree_n the_o receiver_n be_v empty_v 11_o etc._n etc._n a_o digression_n touch_v the_o spring_n or_o elastical_a power_n of_o the_o air_n with_o a_o attempt_n for_o a_o mechanical_a explication_n thereof_o necessary_a to_o be_v premise_v for_o the_o explanation_n of_o the_o phaenomena_n exhibit_v in_o this_o and_o the_o subsequent_a experiment_n 12_o etc._n etc._n the_o second_o experiment_n touch_v the_o pressure_n of_o the_o air_n against_o the_o side_n of_o the_o body_n it_o environ_n 20_o etc._n etc._n with_o a_o digressive_a explication_n of_o the_o pressure_n of_o the_o air_n include_v within_o a_o ambient_fw-la body_n 21_o etc._n etc._n the_o three_o experiment_n touch_v the_o force_n requisite_a to_o draw_v down_o the_o sucker_n 23_o etc._n etc._n the_o opinion_n of_o a_o eminent_a modern_a naturalist_n examine_v 24_o etc._n etc._n the_o four_o experiment_n touch_v the_o swell_n of_o a_o bladder_n with_o the_o degree_n by_o which_o it_o increase_v 25_o etc._n etc._n another_o opinion_n of_o a_o learned_a author_n examine_v 26_o etc._n etc._n the_o five_o experiment_n touch_v the_o break_n of_o a_o bladder_n in_o the_o receiver_n and_o of_o another_o by_o heat_n 27_o 28._o the_o six_o experiment_n of_o divers_a way_n by_o which_o the_o elastical_a expansion_n of_o the_o air_n be_v measure_v 29_o etc._n etc._n the_o seven_o experiment_n touch_v what_o figure_n do_v best_a resist_v the_o pressure_n of_o the_o air._n 33_o the_o eight_o experiment_n tend_v to_o a_o far_a demonstration_n of_o the_o former_a from_o the_o break_n of_o a_o glass_n helmet_n inward_a 34_o the_o nine_o experiment_n contain_v a_o far_a confirmation_n from_o the_o break_n of_o a_o glass_n outward_a 35_o etc._n etc._n with_o a_o experiment_n to_o prove_v that_o these_o phaenomena_n proceed_v not_o from_o a_o invincible_a fuga_fw-la vacui_fw-la 37._o a_o description_n of_o other_o small_a receiver_n and_o their_o conveniency_n 38_o etc._n etc._n a_o receipt_n for_o the_o make_n of_o a_o composition_n to_o cement_v crack_v glass_n 39_o the_o ten_o experiment_n touch_v the_o flame_a of_o candle_n enclose_v in_o the_o receiver_n 39_o etc._n etc._n the_o eleven_o experiment_n touch_v the_o burn_a of_o coal_n and_o the_o last_a of_o the_o excandescence_n of_o a_o include_v piece_n of_o iron_n 42_o the_o twelve_o experiment_n concern_v the_o burn_a of_o match_n 44_o the_o thirteen_o experiment_n concern_v the_o far_a prosecution_n of_o the_o precede_a tend_v to_o prove_v the_o extinction_n of_o the_o fire_n in_o the_o former_a experiment_n not_o to_o have_v proceed_v from_o the_o pressure_n of_o the_o fire_n by_o the_o fume_n some_o remarkable_a circumstance_n of_o it_o the_o experiment_n of_o match_n try_v in_o a_o small_a receiver_n 45_o etc._n etc._n the_o fourteen_o experiment_n touch_v the_o strike_a fire_n and_o klindle_v of_o powder_n with_o the_o lock_n of_o a_o pistol_n in_o the_o evacuated_a receiver_n 47_o etc._n etc._n the_o fifteen_o experiment_n touch_v the_o unsuccessfulness_n of_o kindle_v include_v body_n with_o a_o burning-glass_n and_o the_o author_n intention_n to_o prosecute_v it_o far_o 49_o the_o sixteen_o experiment_n concern_v the_o operation_n of_o the_o loadstone_n 52_o the_o seventeen_o experiment_n touch_v the_o gradual_a descent_n of_o the_o quicksilver_n in_o the_o torricellian_a experiment_n 51_o etc._n etc._n some_o observable_a circumstance_n concern_v it_o 54_o etc._n etc._n the_o same_o experiment_n try_v in_o one_o of_o the_o small_a receiver_n 55._o how_o this_o experiment_n may_v be_v make_v use_n of_o to_o know_v the_o strength_n of_o the_o pressure_n of_o the_o air_n for_o every_o degree_n of_o rarefaction_n 56_o etc._n etc._n the_o trial_n of_o the_o same_o experiment_n in_o a_o tube_n not_o two_o foot_n long_o 57_o the_o raise_n of_o the_o mercurial_a cylinder_n by_o the_o force_n of_o more_o air_n into_o the_o receiver_n ib._n some_o allegation_n for_o and_o against_o a_o vacuum_n consider_v 59_o etc._n etc._n some_o advertisement_n concern_v the_o inconvenience_n that_o may_v arise_v from_o the_o diversity_n of_o measure_n make_v use_v of_o for_o the_o define_n the_o altitude_n of_o the_o mercurial_a cylinder_n and_o from_o the_o neglect_n of_o little_a parcel_n of_o air_n apt_a to_o remain_v between_o the_o mercury_n and_o the_o concave_a surface_n of_o the_o tube_n 60_o etc._n etc._n some_o expedient_n for_o the_o more_o exact_a fill_v the_o tube_n 61._o the_o height_n the_o author_n once_o find_v of_o the_o mercurial_a cylinder_n according_a to_o english_a measure_n 63_o the_o eighteen_o experiment_n contain_v a_o new_a observation_n touch_v the_o variation_n of_o the_o height_n of_o the_o mercurial_a cylinder_n in_o the_o same_o tube_n with_o a_o offer_n at_o the_o reason_n thereof_o 63_o etc._n etc._n the_o nineteen_o experiment_n touch_v the_o subside_v of_o a_o cylinder_n of_o water_n 69._o the_o same_o try_v in_o a_o small_a receiver_n 70_o the_o twenty_o experiment_n touch_v the_o elater_n of_o water_n with_o a_o digressive_a experiment_n to_o the_o same_o purpose_n 71_o etc._n etc._n the_o 21_o experiment_n be_v a_o prosecution_n of_o the_o former_a enquiry_n by_o experiment_v the_o generation_n of_o bubble_n under_o water_n a_o recital_n of_o some_o not_o able_a circumstance_n with_o some_o observable_a corollary_n deduce_v therefrom_o 73_o etc._n etc._n the_o 22_o experiment_n tend_v to_o a_o determination_n of_o the_o enquiry_n propose_v in_o the_o former_a experiment_n by_o prove_v the_o matter_n of_o these_o bubble_n from_o their_o permanency_n to_o be_v air_n the_o experiment_n try_v in_o the_o great_a and_o small_a receiver_n evince_v the_o same_o thing_n 77_o etc._n etc._n a_o experiment_n wherein_o there_o appear_v bubble_n in_o quicksilver_n 79._o the_o author_n inference_n 80._o a_o digressive_a enquiry_n whether_o or_o no_o air_n may_v be_v generate_v anew_o with_o several_a history_n and_o experiment_n tend_v to_o the_o resolve_v and_o clear_v thereof_o ibid._n etc._n etc._n the_o author_n excuse_n for_o so_o long_a
experiment_n this_o will_v perhaps_o make_v it_o seem_v strange_a that_o have_v take_v another_o glass_n bubble_v blow_v at_o the_o same_o time_n and_o like_v for_o aught_o we_o discern_v for_o size_n thickness_n and_o figure_n to_o that_o thin_a one_o former_o mention_v and_o have_v seal_v it_o up_o hermetical_o and_o suspend_v it_o in_o the_o receiver_n the_o exsuction_n of_o the_o ambient_fw-la air_n do_v not_o enable_v the_o imprison_a air_n to_o break_v or_o in_o the_o least_o to_o crack_v the_o bubble_n though_o the_o experiment_n be_v laborious_o try_v and_o that_o several_a time_n with_o bubble_n of_o other_o size_n but_o that_o perhaps_o the_o heat_n of_o the_o candle_n or_o lamp_n wherewith_o such_o glass_n be_v hermetical_o seal_v not_o to_o mention_v the_o warmth_n of_o his_o hand_n that_o seal_v it_o may_v so_o rarefy_v the_o contain_v air_n as_o much_o to_o weaken_v its_o spring_n may_v seem_v probable_o by_o the_o follow_a experiment_n experiment_n ix_o we_o take_v a_o glass_n viol._n able_a to_o hold_v three_o or_o four_o ounce_n of_o water_n and_o of_o the_o thickness_n usual_a in_o glass_n of_o that_o size_n into_o the_o neck_n of_o this_o be_v put_v a_o moderate_o slender_a pipe_n of_o glass_n which_o be_v careful_o fasten_v with_o a_o mixture_n of_o equal_a part_n of_o pitch_n and_o rosin_n to_o the_o neck_n of_o the_o viol_n and_o which_o reach_v almost_o to_o the_o bottom_n of_o it_o as_o the_o six_o figure_n declare_v this_o viol_n be_v upon_o a_o particular_a design_n fill_v with_o water_n till_o that_o come_v up_o in_o it_o a_o pretty_a deal_n high_o than_o the_o low_a end_n of_o the_o pipe_n be_v put_v into_o one_o of_o our_o small_a receiver_n contain_v between_o a_o pint_n and_o a_o quart_n in_o such_o manner_n as_o that_o the_o glass_n pipe_n pass_v through_o a_o hole_n make_v purposely_o for_o it_o in_o the_o leaden-cove_a of_o the_o receiver_n be_v for_o the_o most_o part_n of_o it_o without_o the_o vessel_n which_o be_v exact_o close_v the_o pump_n be_v set_v on_o work_n but_o at_o the_o very_a first_o exsuction_n and_o before_o the_o sucker_n be_v draw_v to_o the_o bottom_n of_o the_o cylinder_n there_o fly_v out_o of_o the_o viol_n a_o piece_n of_o glass_n half_a as_o broad_a as_o the_o palm_n of_o a_o man_n hand_n and_o it_o be_v throw_v out_o with_o such_o violence_n that_o hit_v against_o the_o neighbour_a side_n of_o the_o receiver_n it_o not_o only_o dash_v itself_o to_o piece_n but_o crack_v the_o very_a receiver_n in_o many_o place_n with_o a_o great_a noise_n that_o much_o surprise_v all_o that_o be_v in_o the_o room_n but_o it_o seem_v that_o in_o so_o little_a a_o receiver_n the_o air_n about_o the_o viol_n be_v sudden_o draw_v out_o the_o air_n imprison_v in_o the_o vessel_n have_v on_o it_o the_o whole_a pressure_n of_o the_o atmosphere_n to_o which_o by_o the_o pipe_n open_a at_o both_o end_n it_o and_o the_o water_n be_v expose_v and_o not_o have_v on_o the_o other_o side_n the_o wont_a 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satisfaction_n we_o reiterated_a it_o in_o a_o round_a glass_n contain_v by_o guest_n about_o six_o ounce_n of_o water_n this_o viol_n we_o put_v into_o such_o a_o small_a receiver_n as_o be_v late_o mention_v in_o such_o manner_n as_o that_o the_o bottom_n of_o it_o rest_v upon_o the_o low_a part_n of_o the_o pneumatical_a glass_n and_o the_o neck_n come_v out_o through_o the_o leaden-cove_a of_o the_o same_o at_o a_o hole_n make_v purposely_o for_o it_o but_o be_v make_v circumspect_a by_o the_o forego_n mischance_n we_o have_v put_v the_o viol_n into_o a_o bladder_n before_o we_o put_v it_o into_o the_o receiver_n to_o hinder_v this_o last-named_n glass_n from_o be_v endanger_v by_o the_o break_n of_o the_o other_o then_o the_o pneumatical_a vessel_n be_v close_v so_o that_o no_o way_n be_v leave_v for_o the_o outward_a air_n to_o get_v into_o it_o but_o by_o break_v through_o the_o viol_n into_o who_o cavity_n it_o have_v free_a access_n by_o the_o mouth_n of_o it_o which_o be_v purposely_o leave_v open_a the_o sucker_n be_v nimble_o draw_v down_o the_o external_a air_n immediate_o press_v forcible_o as_o well_o upon_o the_o leaden-cove_a as_o the_o viol_n and_o the_o cover_v happen_v to_o be_v in_o one_o place_n a_o little_o narrow_a than_o the_o edge_n of_o the_o pneumatical_a glass_n be_v depress_v and_o thrust_v into_o it_o so_o violent_o by_o the_o incumbent_a air_n that_o get_v a_o little_a within_o the_o taper_a lip_n of_o the_o glass_n it_o do_v like_o a_o kind_n of_o wedge_n thrust_v out_o that_o side_n where_o it_o be_v depress_v so_o as_o though_o the_o receiver_n be_v new_a to_o split_v it_o this_o accident_n be_v thus_o mention_v upon_o the_o bye_n to_o confirm_v what_o we_o former_o say_v touch_v the_o fitness_n or_o unfitness_n of_o glass_n of_o some_o figure_n to_o resist_v the_o pressure_n of_o the_o atmosphere_n we_o will_v proceed_v to_o relate_v the_o remain_a part_n of_o the_o experiment_n namely_o that_o have_v fit_v on_o a_o wide_a cover_n to_o the_o same_o receiver_n and_o close_v both_o that_o and_o the_o crack_n with_o cement_n we_o prosecute_v the_o experiment_n in_o the_o manner_n above_o relate_v with_o this_o success_n that_o upon_o the_o quick_a depress_v of_o the_o sucker_n the_o external_a air_n burst_v the_o body_n of_o the_o viol_n into_o above_o a_o hundred_o piece_n many_o of_o they_o exceed_v small_a and_o that_o with_o such_o violence_n that_o we_o find_v a_o wide_a rent_n beside_o many_o hole_n make_v in_o the_o bladder_n itself_o and_o to_o evince_v that_o these_o phaenomena_n be_v the_o effect_n of_o a_o limit_a and_o even_o moderate_a force_n and_o not_o of_o such_o a_o abhorrency_n of_o a_o vacuum_n as_o that_o to_o avoid_v it_o many_o have_v be_v please_v to_o think_v that_o nature_n must_v upon_o occasion_n exercise_v a_o almost_o boundless_a power_n we_o afterward_o purposely_o try_v this_o experiment_n with_o several_a glass_n somewhat_o thick_a than_o those_o viol_n and_o find_v the_o event_n to_o verify_v our_o conjecture_n that_o it_o will_v not_o succeed_v for_o the_o glass_n be_v take_v out_o as_o entire_a as_o they_o be_v put_v in_o and_o here_o my_o lord_n i_o hold_v it_o not_o unfit_a upon_o occasion_n of_o the_o mention_n that_o have_v be_v make_v of_o our_o have_v employ_v small_a receiver_n and_o one_o of_o they_o notwithstanding_o its_o be_v crack_v to_o annex_v these_o two_o advertisement_n first_o then_o beside_o the_o great_a pneumatical_a glass_n so_o often_o mention_v and_o the_o proportionate_a stop-cock_n we_o think_v fit_a to_o provide_v ourselves_o with_o some_o small_a receiver_n blow_v of_o crystalline_a glass_n of_o several_a shape_v and_o furnish_v with_o small_a stop-cock_n purposely_o make_v and_o this_o we_o do_v upon_o hope_n that_o when_o we_o have_v surmount_v the_o difficulty_n to_o be_v meet_v with_o in_o cement_n the_o glass_n to_o the_o stop-cock_n and_o the_o pneumatical_a vessel_n to_o the_o pump_n so_o exquisite_o as_o be_v requisite_a for_o our_o purpose_n we_o shall_v from_o the_o smallness_n of_o our_o receiver_n receive_v a_o fourfold_a advantage_n the_o first_o that_o by_o reason_n of_o the_o slenderness_n of_o the_o vessel_n and_o their_o be_v make_v of_o much_o pure_a and_o clear_a metal_n as_o the_o glassman_n speak_v than_o the_o great_a receiver_n we_o may_v have_v a_o more_o perfect_a view_n of_o every_o thing_n happen_v within_o they_o the_o next_o that_o such_o small_a vessel_n may_v be_v empty_v with_o less_o labour_n and_o in_o much_o less_o time_n the_o three_o that_o this_o nimble_a exsuction_n of_o the_o ambient_fw-la air_n will_v make_v many_o change_n in_o the_o body_n shut_v up_o in_o these_o glass_n more_o sudden_a and_o conspicuous_a than_o otherwise_o they_o will_v prove_v and_o the_o last_o that_o
suspicion_n the_o experiment_n about_o the_o coal_n may_v easy_o suggest_v and_o which_o the_o event_n declare_v not_o to_o have_v be_v altogether_o groundless_a for_o upon_o the_o admission_n of_o the_o external_a air_n the_o fire_n that_o seem_v to_o have_v go_v out_o a_o pretty_a while_n before_o do_v present_o revive_v and_o be_v as_o it_o be_v refresh_v by_o the_o new_a air_n and_o blow_v by_o the_o wind_n make_v by_o that_o air_n in_o rush_v in_o it_o begin_v again_o to_o shine_v and_o dissipate_v the_o neighbour_a fuel_n into_o smoke_n as_o formal_o experiment_n xiii_o a_o while_o after_o we_o let_v down_o into_o the_o receiver_n together_o with_o a_o light_a piece_n of_o match_n a_o great_a bladder_n well_o tie_v at_o the_o neck_n but_o very_o lank_a as_o not_o contain_v actual_o much_o if_o any_o thing_n above_o a_o pint_n of_o air_n but_o be_v capable_a of_o contain_v ten_o or_o twelve_o time_n as_o much_o our_o scope_n in_o this_o experiment_n be_v partly_o to_o try_v whether_o or_o no_o the_o smoke_n of_o the_o match_n replenish_n the_o receiver_n will_v be_v able_a to_o hinder_v the_o dilatation_n of_o the_o inward_a air_n upon_o the_o exsuction_n of_o the_o ambient_fw-la and_o partly_o to_o discover_v whether_o the_o extinction_n of_o the_o fire_n in_o the_o match_n do_v proceed_v from_o want_n of_o air_n or_o bare_o from_o the_o pressure_n of_o its_o own_o fume_n which_o for_o want_v of_o room_n to_o expand_v themselves_o in_o may_v be_v suppose_v to_o recoil_v upon_o the_o fire_n and_o so_o to_o stifle_v it_o the_o event_n of_o our_o trial_n be_v that_o at_o the_o begin_n of_o our_o pump_v the_o match_n appear_v well_o light_v though_o it_o have_v almost_o fill_v the_o receiver_n with_o its_o plentiful_a fume_n but_o by_o degree_n it_o burn_v more_o and_o more_o dim_o notwithstanding_o that_o by_o the_o nimble_a draw_v out_o the_o air_n and_o smoke_n the_o vessel_n be_v make_v less_o opacous_a and_o less_o full_a of_o compress_v matter_n as_o appear_v by_o this_o that_o the_o long_o we_o pump_v the_o less_o air_n and_o smoke_n come_v out_o of_o the_o cylinder_n at_o the_o open_n of_o the_o valve_n and_o consequent_o the_o less_o come_v into_o it_o before_o yet_o the_o fire_n in_o the_o match_n go_v but_o slow_o out_o and_o when_o afterward_o to_o satisfy_v ourselves_o of_o its_o expiration_n we_o have_v darken_v the_o room_n and_o in_o vain_a endeavour_v to_o discover_v any_o spark_n of_o fire_n as_o we_o can_v not_o for_o some_o time_n before_o by_o the_o help_n of_o candle_n discern_v the_o least_o rise_n of_o smoke_n we_o yet_o continue_v pump_v six_o or_o seven_o time_n and_o after_o all_o that_o let_v in_o the_o air_n the_o seem_o dead_a fire_n quick_o revive_v and_o manifest_v its_o recovery_n by_o light_n and_o store_n of_o smoke_n with_o the_o latter_a of_o which_o it_o quick_o begin_v to_o replenish_v the_o receiver_n then_o we_o fall_v to_o pump_v afresh_o and_o continue_v that_o labour_n so_o long_o till_o the_o re_fw-mi kindle_v match_n go_v out_o again_o and_o think_v it_o then_o fit_v not_o to_o cease_v from_o pump_v so_o soon_o as_o before_o we_o find_v that_o in_o less_o than_o half_a a_o quarter_n of_o a_o hour_n the_o fire_n be_v get_v out_o for_o good_a and_o all_o and_o past_o the_o possibility_n of_o be_v recover_v by_o the_o readmit_v air._n some_o circumstance_n beside_o those_o already_o mention_v occur_v in_o the_o make_n of_o the_o experiment_n of_o which_o these_o be_v the_o principal_a first_o when_o the_o receiver_n be_v full_a of_o smoke_n if_o the_o cylinder_n be_v empty_v immediate_o upon_o the_o turn_n of_o the_o stop-cock_n the_o receiver_n will_v appear_v manifest_o darken_v to_o his_o eye_n that_o look_v upon_o the_o light_n through_o it_o and_o this_o darkness_n be_v much_o less_o when_o the_o receiver_n be_v much_o less_o fill_v with_o fume_n it_o be_v also_o instantaneous_a and_o seem_v to_o proceed_v from_o a_o sudden_a change_n of_o place_n and_o situation_n in_o the_o exhalation_n upon_o the_o vent_n sudden_o afford_v they_o and_o the_o air_n they_o be_v mix_v with_o out_o of_o the_o receiver_n into_o the_o cylinder_n the_o next_o thing_n we_o observe_v be_v a_o kind_n of_o halo_n that_o appear_v a_o good_a while_n about_o the_o fire_n and_o seem_v to_o be_v produce_v by_o the_o surround_v exhalation_n and_o last_o it_o be_v remarkable_a that_o even_o when_o the_o fume_n seem_v most_o to_o replenish_v the_o receiver_n they_o do_v not_o sensible_o hinder_v the_o air_n include_v in_o the_o bladder_n from_o dilate_v itself_o after_o the_o same_o manner_n for_o aught_o we_o can_v discern_v as_o it_o will_v have_v otherwise_o do_v so_o that_o before_o the_o fire_n or_o the_o match_n be_v quite_o extinct_a the_o bladder_n appear_v swell_v at_o least_o to_o six_o or_o seven_o time_n its_o former_a capacity_n since_o the_o write_n of_o these_o last_o line_n we_o take_v a_o small_a receiver_n capable_a of_o contain_v by_o guess_n about_o a_o pound_n and_o a_o half_a of_o water_n and_o in_o the_o midst_n of_o it_o we_o suspend_v a_o light_a match_n but_o though_o within_o one_o minute_n of_o a_o hour_n or_o there_o about_o from_o the_o put_n in_o of_o the_o match_n we_o have_v cement_v on_o the_o cover_n yet_o we_o can_v not_o make_v such_o haste_n but_o that_o before_o we_o begin_v to_o pump_v the_o smoke_n have_v so_o fill_v that_o small_a receiver_n as_o for_o aught_o we_o discern_v to_o choke_v the_o fire_n and_o have_v again_o and_o again_o reiterated_a the_o experiment_n it_o seem_v still_o as_o at_o first_o that_o we_o can_v not_o close_o up_o the_o vessel_n and_o pump_v out_o all_o the_o fume_n time_n enough_o to_o rescue_v the_o fire_n from_o extinction_n whereupon_o we_o make_v use_v of_o this_o expedient_a assoon_o as_o we_o have_v pump_v once_o or_o twice_o we_o sudden_o turn_v the_o key_n and_o thereby_o give_v access_n to_o the_o exclude_v air_n which_o rush_v violent_o in_o as_o if_o it_o have_v be_v force_v through_o a_o pair_n of_o bellows_o do_v both_o drive_v away_o the_o ash_n fill_v the_o glass_n with_o fresh_a air_n and_o by_o blow_v the_o almost_o extinguish_v fire_n re-kindled_a it_o as_o appear_v by_o the_o match_n begin_v again_o to_o smoke_n which_o before_o it_o have_v cease_v to_o do_v we_o have_v by_o this_o mean_v obtain_v a_o light_a match_n in_o the_o receiver_n without_o be_v reduce_v to_o spend_v time_n to_o close_v it_o up_o command_v the_o air_n to_o be_v immediate_o pump_v out_o and_o find_v that_o upon_o the_o exsuction_n of_o it_o the_o match_n quick_o leave_v smoke_v as_o it_o seem_v by_o reason_n of_o the_o absence_n of_o the_o air_n and_o yet_o if_o some_o urgent_a occasion_n have_v not_o hinder_v we_o we_o will_v for_o great_a security_n have_v try_v whether_o or_o no_o the_o match_n rekindle_v as_o former_o will_v smoke_v much_o long_o in_o case_n of_o no_o exsuction_n of_o the_o ambient_fw-la air._n experiment_n fourteen_o to_o try_v diverse_a thing_n at_o once_o and_o particular_o whether_o fire_n though_o we_o find_v it_o will_v not_o long_o last_v may_v not_o be_v produce_v in_o our_o evacuated_a receiver_n we_o take_v a_o pistol_n of_o about_o a_o foot_n in_o length_n and_o have_v firm_o tie_v it_o to_o a_o stick_n almost_o as_o long_o as_o the_o cavity_n of_o the_o receiver_n we_o very_o careful_o prime_v it_o with_o well_o dry_a gunpowder_n and_o then_o cock_v it_o we_o tie_v to_o the_o tricker_n one_o end_n of_o a_o string_n who_o other_o end_n be_v fasten_v to_o the_o key_n former_o mention_v to_o belong_v to_o the_o cover_n of_o our_o receiver_n this_o do_v we_o convey_v the_o pistol_n together_o with_o the_o annex_v staff_n into_o the_o vessel_n which_o be_v close_v up_o and_o empty_v aster_n the_o usual_a manner_n we_o begin_v to_o turn_v the_o key_n in_o the_o cover_n and_o thereby_o shorten_v the_o string_n that_o reach_v from_o it_o to_o the_o pistol_n we_o pull_v aside_o the_o tricker_n and_o observe_v that_o according_a to_o our_o expectation_n the_o force_n of_o the_o spring_n of_o the_o lock_n be_v not_o sensible_o abate_v by_o the_o absence_n of_o the_o air_n from_o who_o impetus_fw-la yet_o some_o modern_a naturalist_n will_v derive_v the_o cause_n of_o the_o motion_n of_o restitution_n in_o solid_a body_n for_o the_o cock_n fall_v with_o its_o wont_a violence_n upon_o the_o steel_n strike_v out_o of_o it_o as_o many_o and_o as_o conspicuous_a part_n of_o fire_n as_o for_o aught_o we_o can_v perceive_v it_o will_v have_v do_v in_o the_o open_a air._n repeat_v this_o experiment_n diverse_a time_n we_o also_o observe_v whether_o or_o no_o there_o will_v appear_v any_o considerable_a diversity_n in_o the_o motion_n of_o the_o shine_a spark_n in_o
in_o the_o receiver_n shall_v be_v draw_v out_o to_o bring_v the_o remain_a air_n to_o a_o aequilibrium_fw-la with_o so_o short_a and_o light_v a_o cylinder_n of_o water_n but_o when_o once_o the_o water_n begin_v to_o fall_v in_o the_o tube_n than_o each_o exsuction_n of_o air_n make_v it_o descend_v a_o little_a low_o though_o nothing_o near_o so_o much_o as_o the_o quicksilver_n at_o the_o beginning_n do_v in_o the_o experiment_n former_o mention_v nor_o do_v there_o appear_v so_o much_o inequality_n in_o the_o space_n transmit_v by_o the_o water_n in_o its_o descent_n as_o there_o it_o do_v in_o those_o observe_v in_o the_o fall_n of_o the_o quicksilver_n of_o which_o the_o cause_n will_v scarce_o seem_v abstruse_a to_o he_o that_o shall_v due_o reflect_v upon_o what_o have_v be_v already_o deliver_v and_o whereas_o we_o draw_v down_o the_o quicksilver_n in_o the_o tube_n so_o far_o as_o to_o bring_v it_o within_o a_o inch_n of_o the_o surface_n of_o the_o other_o quicksilver_n into_o which_o it_o be_v to_o fall_v the_o low_a we_o be_v able_a to_o draw_v down_o the_o water_n be_v by_o our_o conjecture_n to_o about_o a_o foot_n or_o more_o above_o the_o surface_n of_o that_o in_o the_o vessel_n of_o which_o i_o know_v not_o whether_o it_o will_v be_v needful_a to_o assign_v so_o obvious_a a_o cause_n as_o that_o though_o the_o little_a air_n remain_v in_o the_o receiver_n can_v not_o hinder_v a_o cylinder_n of_o above_o on_o inch_n high_a of_o quicksilver_n from_o subside_v yet_o it_o may_v be_v very_o well_o able_a by_o its_o pressure_n to_o countervail_v the_o weight_n of_o a_o cylinder_n of_o a_o foot_n long_o or_o more_o of_o a_o liquor_n so_o much_o less_o ponderous_a than_o quicksilver_n as_o water_n be_v and_o in_o fine_a to_o conclude_v our_o experiment_n when_o the_o water_n be_v draw_v down_o thus_o low_a we_o find_v that_o by_o let_v in_o the_o outward_a air_n it_o may_v be_v immediate_o impel_v up_o again_o to_o the_o high_a part_n of_o the_o 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guess_v to_o be_v of_o the_o bigness_n of_o half_a a_o pea_n this_o do_v the_o wide_a mouth_a glass_n be_v let_v down_o into_o the_o receiver_n and_o the_o way_n of_o employ_v the_o engine_n be_v careful_o make_v use_n of_o the_o success_n be_v that_o have_v draw_v out_o a_o pretty_a quantity_n of_o air_n the_o bubble_n begin_v to_o disclose_v themselves_o in_o the_o water_n as_o in_o the_o former_a experiment_n and_o though_o for_o a_o good_a while_n after_o the_o bubble_n ascend_v in_o swarm_n from_o the_o low_a part_n of_o the_o water_n and_o hasty_o break_v at_o the_o top_n yet_o we_o prosecute_v the_o experiment_n so_o long_o without_o see_v any_o effect_n wrought_v upon_o the_o essence-bottle_n that_o we_o begin_v to_o despair_v of_o see_v of_o they_o rise_v but_o continue_v to_o ply_v the_o pump_n that_o little_a glass_n who_o mouth_n be_v open_v come_v to_o the_o top_n of_o the_o water_n be_v as_o it_o be_v buoy_v up_o thither_o by_o a_o great_a number_n of_o bubble_n that_o 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common_o but_o erroneous_o presume_v reduce_v water_n into_o less_o room_n than_o it_o possess_v before_o but_o rather_o make_v it_o take_v up_o more_o and_o i_o have_v elsewhere_o prove_v by_o particular_a experiment_n that_o whether_o or_o no_o ice_n may_v be_v true_o say_v to_o be_v water_n rarefy_a for_o that_o seem_v questionable_a it_o may_v be_v say_v to_o take_v up_o more_o room_n than_o the_o water_n do_v before_o glaciation_n but_o though_o we_o grant_v that_o freeze_a make_v water_n swell_v yet_o how_o cold_a which_o in_o weather-glass_n manifest_o condense_v the_o air_n shall_v expand_v either_o the_o water_n or_o the_o intercept_a air_n so_o forcible_o as_o to_o perform_v such_o thing_n as_o we_o have_v new_o relate_v will_v yet_o remain_v a_o problem_n experiment_n thirty-nine_o we_o take_v a_o oval_a glass_n clear_a and_o lest_o it_o shall_v break_v pretty_a strong_a with_o a_o short_a neck_n at_o the_o obtuser_n end_n through_o this_o neck_n we_o thrust_v almost_o to_o 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expose_v to_o the_o open_a air._n the_o pump_n be_v set_v a_o work_n upon_o the_o exsuction_n of_o the_o air_n the_o water_n in_o the_o pipe_n descend_v about_o a_o quarter_n of_o a_o inch_n and_o this_o upon_o two_o or_o three_o reiterated_a trial_n which_o seem_v sufficient_o to_o argue_v that_o there_o be_v no_o heat_n produce_v in_o the_o receiver_n upon_o the_o exsuction_n of_o the_o air_n for_o even_o a_o little_a heat_n will_v probable_o have_v be_v discover_v by_o that_o weatherglass_n since_o upon_o the_o bare_a application_n of_o my_o hand_n to_o the_o outside_n of_o the_o receiver_n the_o warmth_n have_v after_o some_o time_n be_v communicate_v or_o propagate_v through_o both_o the_o glass_n and_o the_o interval_n betwixt_o they_o to_o the_o imprison_a air_n do_v so_o rarefie_v that_o as_o to_o enable_v it_o by_o press_v upon_o the_o subjacent_a water_n to_o impel_v that_o in_o the_o pipe_n very_o many_o time_n as_o far_o as_o it_o have_v fall_v downward_o upon_o the_o 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moderate_a heat_n than_o such_o a_o excessive_a one_o as_o needs_o to_o be_v perpetual_o cool_v to_o keep_v it_o from_o grow_v destructive_a which_o the_o gentle_a and_o not_o the_o burn_a heat_n of_o a_o animal_n heart_n seem_v not_o intense_a enough_o so_o indispensable_o to_o require_v these_o and_o other_o objection_n may_v be_v oppose_v and_o press_v against_o the_o recite_v opinion_n but_o we_o shall_v not_o insist_v on_o they_o but_o only_o add_v to_o they_o that_o it_o appear_v not_o by_o our_o forego_v experiment_n i_o mean_v the_o 38_o and_o 39_o that_o in_o our_o exhaust_a receiver_n where_o yet_o animal_n die_v so_o sudden_o for_o want_v of_o respiration_n the_o ambient_fw-la body_n be_v sensible_o hot_a than_o the_o common_a air._n other_o learned_a man_n there_o be_v who_o will_v have_v the_o very_a substance_n of_o the_o air_n to_o get_v in_o by_o the_o vessel_n of_o the_o lung_n to_o the_o left_a ventricle_n of_o the_o heart_n not_o only_o to_o temper_v its_o heat_n 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experiment_n have_v cost_v i_o if_o they_o be_v find_v in_o any_o degree_n serviceable_a to_o the_o purpose_n to_o which_o they_o be_v design_v and_o though_o i_o despair_v not_o but_o that_o hereafter_o our_o engine_n may_v furnish_v we_o with_o divers_a phaenomena_n useful_a to_o illustrate_v the_o doctrine_n of_o respiration_n yet_o have_v not_o as_o yet_o have_v the_o opportunity_n to_o make_v the_o other_o trial_n of_o various_a kind_n that_o i_o judge_v requisite_a for_o my_o information_n i_o must_v confess_v to_o your_o lordship_n that_o in_o what_o i_o have_v hitherto_o say_v i_o pretend_v not_o so_o much_o to_o establish_v or_o overthrow_v this_o or_o that_o hypothesis_n as_o to_o lay_v together_o divers_a of_o the_o particular_n that_o occur_v to_o i_o in_o order_n to_o a_o future_a inquiry_n i_o say_v divers_a of_o the_o particular_n because_o i_o can_v add_v many_o other_o but_o that_o i_o want_v time_n and_o fear_v that_o i_o shall_v need_v your_o lordship_n pardon_n 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the_o restagnant_fw-la mercury_n so_o that_o the_o air_n include_v and_o endeavour_v to_o expand_v itself_o find_v no_o assistance_n to_o expand_v itself_o upward_o and_o a_o considerable_a one_o to_o expand_v itself_o downward_o it_o be_v very_o natural_a that_o it_o shall_v expand_v itself_o that_o way_n whence_o it_o find_v less_o resistance_n as_o according_o it_o will_v happen_v till_o the_o spring_n of_o the_o air_n be_v so_o far_o debilitate_a by_o its_o expansion_n that_o its_o pressure_n together_o with_o the_o weight_n of_o the_o mercury_n that_o remain_v suspend_v will_v but_o counter-balance_n not_o overcome_v the_o pressure_n of_o the_o outward_a air_n upon_o the_o restagnant_fw-la mercury_n and_o this_o explication_n may_v be_v confirm_v by_o this_o trial_n that_o i_o have_v purposely_o make_v namely_o that_o if_o in_o stead_n of_o quicksilver_n you_o employ_v water_n and_o leave_v as_o before_o in_o the_o tube_n a_o inch_n of_o air_n and_o then_o invert_v it_o open_v it_o under_o water_n you_o will_v perceive_v the_o include_v inch_n of_o air_n not_o to_o dilate_v itself_o any_o thing_n near_o for_o i_o need_v not_o here_o define_v the_o proportion_n half_a so_o far_o as_o it_o do_v when_o the_o tube_n be_v almost_o fill_v with_o mercury_n because_o the_o weight_n of_o so_o short_a a_o cylinder_n of_o water_n do_v but_o equal_a that_o of_o between_o a_o inch_n and_o a_o inch_n and_o a_o half_a only_a of_o quicksilver_n and_o consequent_o the_o inward_a air_n be_v far_o less_o assist_v to_o dilate_v itself_o and_o surmount_v the_o pressure_n of_o the_o outward_a air_n by_o the_o cylinder_n of_o water_n than_o by_o that_o of_o mercury_n and_o as_o for_o what_o our_o author_n say_v that_o if_o instead_o of_o air_n water_n or_o some_o other_o liquor_n be_v leave_v at_o the_o top_n of_o the_o tube_n the_o quicksilver_n will_v not_o descend_v the_o elaterist_n can_v ready_o solve_v that_o phaenomenon_n by_o say_v that_o water_n have_v either_o no_o 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unrarefied_a air_n without_o by_o which_o mean_v the_o pulp_n of_o the_o finger_n will_v be_v thrust_v in_o which_o our_o author_n be_v please_v to_o call_v suck_v in_o as_o we_o shall_v ere_o long_o have_v occasion_n to_o declare_v in_o our_o answer_n to_o his_o second_o argument_n and_o have_v say_v thus_o much_o to_o our_o author_n first_o exception_n against_o the_o solution_n he_o foresee_v we_o will_v give_v of_o his_o three_o argument_n we_o have_v not_o much_o to_o say_v at_o present_a to_o this_o second_o for_o whereas_o he_o say_v concipi_fw-la non_fw-la posse_fw-la quomodo_fw-la aër_fw-la ille_fw-la sic_fw-la se_fw-la dilatet_fw-la argentumque_fw-la deorsum_fw-la trudat_fw-la nisi_fw-la occupando_fw-la 17._o majorem_fw-la locum_fw-la quod_fw-la tamen_fw-la hi_o authores_fw-la quam_fw-la maxim_n refugiunt_fw-la asserentes_fw-la rarefactionem_fw-la non_fw-la aliter_fw-la fieri_fw-la quam_fw-la per_fw-la corpuscula_fw-la aut_fw-la vacuitates_fw-la i_o wish_v he_o have_v more_o clear_o express_v himself_o since_o as_o his_o word_n be_v couch_v i_o can_v easy_o guess_v what_o he_o mean_v and_o much_o less_o easy_o discern_v how_o they_o make_v a_o argument_n against_o his_o adversary_n for_o sure_o he_o think_v they_o not_o so_o absurd_a as_o to_o imagine_v that_o the_o air_n can_v dilate_v itself_o and_o thrust_v down_o the_o mercury_n without_o in_o some_o sense_n take_v up_o more_o room_n than_o it_o do_v before_o for_o the_o very_a word_n dilatation_n and_o the_o effect_n they_o ascribe_v to_o the_o include_v air_n clear_o imply_v as_o much_o so_o that_o i_o see_v not_o why_o he_o shall_v say_v that_o they_o be_v so_o averse_a from_o grant_v the_o air_n to_o take_v up_o more_o place_n than_o before_o especial_o since_o he_o take_v notice_n in_o the_o former_a chapter_n that_o we_o compare_v the_o expansion_n of_o the_o air_n to_o that_o of_o compress_v wool_n and_o since_o he_o here_o also_o annex_v that_o we_o explicate_v rarefaction_n either_o by_o corpuscle_n or_o vacuity_n but_o this_o late_a clause_n make_v i_o suspect_v his_o meaning_n to_o be_v that_o the_o elaterist_n do_v not_o admit_v that_o the_o same_o air_n may_v adequate_o fill_v more_o of_o place_n at_o one_o time_n than_o at_o another_o which_o i_o believe_v to_o be_v as_o true_a as_o that_o the_o selfsame_a lock_n of_o compress_v wool_n have_v no_o more_o hair_n in_o it_o nor_o do_v adequate_o fill_v more_o place_n with_o they_o when_o it_o be_v permit_v to_o expand_v itself_o than_o whilst_o it_o remain_v compress_v but_o against_o this_o way_n of_o rarefaction_n our_o author_n here_o have_v not_o any_o objection_n unless_o it_o be_v intimate_v in_o these_o word_n concipi_fw-la non_fw-la potest_fw-la which_o if_o it_o be_v i_o shall_v need_v only_o to_o mind_v he_o in_o this_o place_n that_o whereas_o many_o of_o the_o chief_a philosopher_n both_o of_o ancient_n and_o our_o own_o time_n have_v profess_v they_o think_v not_o the_o aristotelean_a way_n of_o rarefaction_n conceivable_a and_o he_o acknowledge_v as_o we_o shall_v see_v anon_o that_o it_o be_v not_o clear_a what_o the_o able_a of_o his_o party_n the_o modern_a plenist_n be_v wont_n to_o object_n against_o the_o way_n of_o rarefaction_n he_o dislike_v be_v that_o it_o be_v not_o true_a not_o that_o it_o be_v not_o intelligible_a chap._n iii_o our_o author_n second_o objection_n for_o so_o i_o reckon_v it_o be_v thus_o propose_v by_o he_o si_fw-mi sumatur_fw-la tubus_fw-la utrinque_fw-la apart_a we_o say_v longior_fw-la puta_fw-la digitorum_fw-la 40._o argentoque_fw-la impleatur_fw-la eique_fw-la 15._o digitus_fw-la supernè_fw-la applicatur_fw-la ut_fw-la prius_fw-la videbimus_fw-la subtracto_fw-la inferiore_fw-la digito_fw-la argentum_fw-la quidem_fw-la descendere_fw-la usque_fw-la ad_fw-la consuetam_fw-la svam_fw-la stationem_fw-la digitum_fw-la autem_fw-la superiorem_fw-la fortiter_fw-la intra_fw-la tubum_fw-la trahi_fw-la eique_fw-la firmissime_fw-la ut_fw-la prius_fw-la adhaerere_fw-la exit_fw-la quo_fw-la rursum_fw-la evidenter_fw-la concluditur_fw-la argentum_fw-la in_fw-la sua_fw-la station_n constitutum_fw-la non_fw-la ibidem_fw-la sustentari_fw-la ab_fw-la externo_fw-la aëre_fw-la sed_fw-la à_fw-la funiculo_fw-la quodam_fw-la interno_fw-la suspendi_fw-la cujus_fw-la superior_a extremitas_fw-la digito_fw-la affixa_fw-la eum_fw-la sic_fw-la intra_fw-la tubum_fw-la trahit_fw-la eique_fw-la affigit_fw-la but_o this_o argument_n be_v much_o of_o the_o same_o nature_n with_o that_o draw_v from_o his_o three_o experiment_n the_o answer_v make_v to_o that_o and_o to_o his_o first_o may_v be_v easy_o apply_v and_o will_v be_v sufficient_a for_o this_o also_o especial_o because_o in_o our_o present_a case_n there_o be_v less_o pressure_n against_o the_o pulp_n of_o the_o finger_n in_o the_o inside_n of_o the_o tube_n than_o in_o the_o three_o experiment_n where_o some_o air_n be_v inolude_v though_o much_o expanded_a and_o weaken_a the_o pressure_n of_o the_o atmosphere_n be_v in_o the_o present_a case_n keep_v off_o from_o it_o by_o the_o subjacent_a mercury_n whereas_o there_o be_v nothing_o of_o that_o pressure_n abate_v against_o the_o other_o part_n of_o the_o finger_n that_o keep_v it_o off_o from_o the_o desert_a cavity_n of_o the_o tube_n save_v only_o that_o from_o the_o pulp_n that_o be_v contiguous_a to_o the_o tube_n there_o may_v be_v somewhat_o of_o that_o pressure_n take_v off_o by_o the_o weight_n of_o the_o glass_n itself_o but_o as_o for_o that_o part_n of_o the_o finger_n which_o immediate_o cover_v the_o hole_n whether_o or_o no_o there_o be_v any_o spring_n in_o its_o own_o fibre_n or_o other_o constituent_a substance_n which_o find_v no_o resistance_n in_o the_o place_n desert_v by_o the_o quicksilver_n may_v contribute_v to_o its_o swell_a for_o that_o we_o will_v not_o now_o examine_v he_o that_o have_v due_o consider_v the_o account_n already_o give_v of_o this_o intrusion_n of_o the_o pulp_n into_o the_o glass_n will_v find_v no_o need_n of_o our_o author_n internal_a funiculus_fw-la which_o to_o some_o seem_v more_o difficult_a to_o conceive_v than_o any_o of_o the_o
in_o that_o hypothesis_n it_o can_v scarce_o be_v otherwise_o wherefore_o i_o shall_v only_o add_v on_o this_o occasion_n that_o it_o be_v not_o clear_a to_o i_o that_o even_o such_o a_o divisibility_n of_o a_o continuum_fw-la as_o be_v here_o suppose_v will_v make_v out_o the_o rarefaction_n he_o contend_v for_o for_o let_v the_o integrant_fw-la part_n of_o a_o continuum_fw-la be_v more_o or_o less_o finite_a or_o infinite_a in_o number_n yet_o still_o each_o part_n be_v a_o corporeal_a substance_n must_v have_v some_o particle_n of_o space_n commensurate_a to_o it_o and_o if_o the_o whole_a body_n be_v rarefy_v for_o instance_n to_o twice_o its_o former_a bigness_n then_o will_v each_o part_n be_v likewise_o extend_v to_o double_v its_o former_a dimension_n and_o fill_v both_o the_o place_n it_o take_v up_o before_o and_o another_o equal_a to_o it_o and_o so_o two_o place_n the_o second_o argument_n allege_v to_o recommend_v the_o hithertomentioned_n way_n of_o explicate_a rarefaction_n be_v that_o many_o learned_a man_n among_o who_o he_o name_v two_o aquinas_n and_o suarez_n have_v teach_v that_o the_o same_o corporeal_a thing_n may_v natural_o be_v and_o de_fw-fr facto_fw-la often_o be_v in_o the_o soul_n of_o brute_n real_o indivisible_a and_o virtual_o extend_v but_o though_o i_o pay_v those_o two_o author_n a_o just_a respect_n for_o their_o great_a skill_n in_o scholastical_a and_o metaphysical_a learning_n yet_o the_o examiner_n can_v ignore_v that_o i_o can_v make_v a_o long_a catalogue_n of_o writer_n both_o ancient_a and_o modern_a at_o least_o as_o well_o verse_v in_o natural_a philosophy_n as_o saint_n thomas_n and_o suarez_n who_o have_v some_o of_o they_o in_o express_a word_n deny_v this_o to_o be_v natural_o possible_a and_o other_o have_v declare_v themselves_o of_o the_o same_o judgement_n by_o establish_v principle_n with_o which_o this_o conceit_n of_o the_o virtual_a extension_n of_o the_o indivisible_a corpuscle_n be_v absolute_o inconsistent_a and_o though_o no_o author_n have_v hitherto_o oppose_v it_o yet_o i_o that_o dispute_v not_o what_o this_o or_o that_o man_n think_v but_o what'tis_o rational_a to_o think_v shall_v nevertheless_o not_o scruple_n to_o reject_v it_o now_o and_o shall_v not_o doubt_v to_o find_v store_n of_o the_o best_a naturalist_n of_o the_o same_o opinion_n with_o i_o and_o perhaps_o among_o they_o the_o examiner_n himself_o who_o however_o this_o acknowledgement_n may_v agree_v with_o the_o three_o follow_a chapter_n of_o his_o book_n tell_v we_o pag._n 160._o that_o juxta_fw-la probabiliorem_fw-la sententiam_fw-la hujusmodi_fw-la virtualis_fw-la extensio_fw-la rei_fw-la corporeae_fw-la concedenda_fw-la non_fw-la est_fw-la utpote_fw-la soli_fw-la rei_fw-la spirituali_fw-la propria_fw-la but_o to_o conclude_v at_o length_n this_o tedious_a enquiry_n into_o the_o aristotelean_a way_n of_o rarefaction_n which_o be_v of_o so_o obscure_a a_o nature_n that_o it_o can_v scarce_o be_v either_o propose_v or_o examine_v in_o few_o word_n i_o will_v not_o take_v upon_o i_o resolute_o to_o affirm_v which_o of_o the_o two_o way_n of_o explicate_v it_o by_o atom_n or_o by_o part_n infinite_o divisible_a our_o author_n declare_v himself_o for_o but_o which_o of_o they_o soever_o it_o be_v i_o think_v i_o have_v show_v that_o he_o have_v not_o intelligible_o make_v it_o out_o and_o i_o make_v the_o less_o scruple_n to_o do_v so_o because_o he_o himself_o be_v so_o ingenuous_a as_o at_o the_o close_a of_o his_o discourse_n of_o the_o two_o way_n to_o speak_v thus_o of_o the_o opinion_n he_o prefer_v praestat_fw-la communi_fw-la &_o receptae_fw-la hactenus_fw-la in_o scholis_fw-la sententiae_fw-la insistere_fw-la quae_fw-la licet_fw-la 169._o difficultates_fw-la quidem_fw-la non_fw-la clarè_v solvat_fw-la iis_fw-la tamen_fw-la aperte_fw-la non_fw-la succumbit_fw-la so_o that_o in_o this_o discourse_n of_o rarefaction_n to_o which_o our_o author_n have_v so_o often_o in_o the_o forego_n part_n of_o the_o book_n refer_v we_o as_o that_o which_o shall_v make_v good_a what_o there_o seem_v the_o most_o improbable_a he_o have_v but_o instead_o of_o a_o probable_a hypothesis_n needless_o reject_v substitute_v a_o doctrine_n which_o himself_o dare_v not_o pretend_v capable_a of_o be_v well_o free_v from_o the_o difficulty_n with_o which_o it_o may_v be_v charge_v though_o i_o doubt_v not_o but_o other_o reader_n especial_o naturalist_n will_v think_v he_o have_v be_v very_o civil_a to_o this_o obscure_a doctrine_n in_o say_v that_o difficultatibus_fw-la non_fw-la aperte_fw-la succumbit_fw-la as_o for_o the_o other_o way_n of_o explicate_a rarefaction_n namely_o by_o suppose_v that_o a_o body_n be_v make_v up_o of_o part_n indivisible_a he_o will_v not_o i_o presume_v deny_v but_o that_o the_o objection_n we_o former_o make_v against_o it_o be_v weighty_a for_o according_a to_o this_o hypothesis_n which_o one_o will_v think_v he_o prefer_v since_o he_o make_v use_v of_o it_o in_o the_o three_o or_o four_o last_o chapter_n of_o his_o book_n necessariò_fw-la fatendum_fw-la est_fw-la say_v he_o unam_fw-la eandemque_fw-la partem_fw-la poni_fw-la 163._o in_o duplici_fw-la loco_fw-la adaequate_fw-la cum_fw-la enim_fw-la indivisibilis_fw-la sit_fw-la locumque_fw-la occupet_fw-la majorem_fw-la quam_fw-la prius_fw-la necesse_fw-la est_fw-la ut_fw-la tota_fw-la sit_fw-la in_o quolibet_fw-la punato_fw-la totius_fw-la lici_fw-la sive_fw-la ut_fw-la per_fw-la totum_fw-la illud_fw-la spatium_fw-la virtualiter_fw-la extendatur_fw-la so_o that_o when_o hein_o the_o very_a next_o page_n affirm_v that_o by_o this_o virtual_a extension_n of_o the_o part_n the_o difficulty_n that_o have_v for_o so_o many_o age_n trouble_v philosopher_n may_v be_v easy_o solve_v he_o must_v give_v i_o leave_v who_o love_n to_o speak_v intelligible_o and_o not_o to_o admit_v what_o i_o can_v understand_v to_o desire_v he_o will_v explain_v to_o i_o what_o this_o extensto_fw-la virtualis_fw-la be_v and_o how_o it_o will_v remove_v the_o difficulty_n that_o i_o former_o charge_v upon_o the_o aristotelean_a rarefaction_n for_o the_o easy_a consideration_n of_o this_o matter_n let_v we_o resume_v what_o we_o late_o suppose_v namely_o that_o in_o the_o magdeburgick_a experiment_n the_o half_a inch_n of_o undilated_a air_n consist_v of_o a_o hundred_o corpuscle_n i_o demand_v how_o the_o indivisibility_n of_o these_o corpuscle_n will_v qualify_v they_o to_o make_v out_o such_o a_o rarefaction_n as_o the_o author_n imagine_v for_o what_o do_v their_o be_v indivisible_a do_v in_o this_o case_n but_o make_v it_o the_o less_o intelligible_a how_o they_o can_v fill_v above_o a_o hundred_o part_n of_o space_n it_o be_v easy_a to_o foresee_v he_o will_v answer_v that_o they_o be_v virtual_o extend_v but_o not_o here_o to_o question_v how_o their_o indivisibility_n make_v they_o capable_a of_o be_v so_o i_o demand_v whether_o by_o a_o atom_n be_v virtual_o extend_v its_o corporeal_a substance_n do_v real_o i_o mean_v adequate_o fill_v more_o space_n than_o it_o do_v before_o or_o whether_o it_o do_v not_o for_o one_o of_o the_o two_o be_v necessary_a if_o it_o do_v then_o it_o be_v a_o true_a and_o real_a and_o not_o bare_o a_o virtual_a extension_n and_o that_o such_o a_o extension_n will_v not_o serve_v the_o turn_n what_o we_o have_v former_o argue_v against_o the_o peripatetic_a rarefaction_n will_v evince_v and_o our_o adversary_n seem_v to_o confess_v as_o much_o by_o devise_v this_o virtual_a extension_n to_o avoid_v the_o inconvenience_n to_o which_o he_o see_v his_o doctrine_n of_o rarefaction_n will_v otherwise_o plain_o appear_v expose_v but_o if_o it_o be_v say_v that_o when_o a_o atom_n be_v virtual_o extend_v its_o corporeal_a substance_n fill_v no_o more_o space_n than_o before_o this_o be_v but_o a_o verbal_a shift_n that_o may_v perhaps_o amuse_v a_o unwary_a reader_n but_o it_o will_v scarce_o satisfy_v a_o consider_v one_o for_o i_o demand_v how_o that_o which_o be_v not_o a_o substance_n can_v fill_v place_n and_o how_o this_o improper_a and_o but_o metaphorical_a extension_n will_v salve_v the_o phaenomena_n of_o rarefaction_n as_o how_o the_o half_a inch_n of_o air_n at_o the_o top_n of_o the_o forementioned_a globe_n shall_v without_o a_o corporeal_a extension_n fill_v the_o whole_a globe_n of_o two_o thousand_o time_n its_o bigness_n when_o the_o water_n be_v suck_v out_o of_o it_o and_o act_n at_o the_o low_a part_n of_o the_o globe_n which_o last_o clause_n i_o therefore_o add_v because_o not_o only_o our_o author_n teach_v pag._n 91._o and_o 92._o that_o the_o whole_a globe_n be_v fill_v with_o a_o certain_a thin_a substance_n which_o by_o its_o contraction_n violent_o snatch_v up_o the_o water_n into_o which_o the_o neck_n of_o the_o glass_n be_v immerse_v but_o in_o a_o parallel_n case_n he_o make_v it_o his_o grand_a argument_n to_o prove_v that_o there_o be_v no_o vacuum_n in_o the_o desert_a part_n of_o the_o tube_n in_o the_o torricellian_a experiment_n that_o the_o attraction_n of_o the_o finger_n can_v be_v perform_v 5._o but_o by_o some_o real_a
body_n wherefore_o till_o the_o examiner_n do_v intelligible_o explain_v how_o a_o virtual_a extension_n as_o it_o be_v oppose_v to_o a_o corporeal_a can_v make_v a_o atom_n fill_v twice_o nay_o two_o thousand_o time_n more_o space_n than_o it_o do_v before_o i_o suppose_v this_o device_n of_o virtual_a extension_n will_v appear_v to_o unbiased_a naturalist_n but_o a_o very_a unsatisfactory_a evasion_n two_o argument_n indeed_o there_o be_v which_o our_o adversary_n offer_v as_o proof_n of_o what_o he_o teach_v the_o first_o be_v that_o they_o common_o teach_v in_o the_o school_n that_o at_o lest_o divinitus_fw-la as_o he_o speak_v such_o a_o thing_n as_o be_v plead_v for_o may_v be_v do_v and_o that_o consequent_o it_o be_v not_o repugnant_a to_o the_o nature_n of_o a_o body_n but_o though_o they_o that_o either_o know_v i_o or_o have_v read_v what_o i_o have_v write_v about_o matter_n theological_a will_n i_o hope_v ready_o believe_v that_o none_o be_v more_o willing_a to_o acknowledge_v and_o venerate_v divine_a omnipotence_n yet_o in_o some_o famous_a school_n they_o teach_v that_o it_o be_v contrary_a to_o the_o nature_n of_o the_o thing_n and_o that_o man_n who_o think_v so_o and_o consequent_o look_v not_o upon_o it_o as_o a_o object_n of_o divine_a omnipotence_n may_v whatever_o he_o here_o say_v without_o impiety_n be_v of_o a_o differ_a mind_n from_o he_o about_o the_o possibility_n of_o such_o a_o rarefaction_n as_o he_o will_v here_o have_v our_o author_n may_v perchance_o think_v fit_a to_o grant_v if_o he_o remember_v that_o he_o himself_o say_v a_o few_o page_n after_o cum_fw-la tempus_fw-la sit_fw-la ens_fw-la essentialiter_fw-la successivum_fw-la it_o a_o ut_fw-la ne_fw-la divinitus_fw-la 175._o quidem_fw-la possint_fw-la dvae_fw-la ejus_fw-la part_n simul_fw-la existere_fw-la etc._n etc._n but_o not_o now_o to_o dispute_v of_o a_o power_n that_o i_o be_o more_o willing_a to_o adore_v than_o question_n i_o say_v that_o our_o controversy_n be_v not_o what_o god_n can_v do_v but_o about_o what_o can_v be_v do_v by_o natural_a agent_n not_o elevate_v above_o the_o sphere_n of_o nature_n for_o though_o god_n can_v both_o create_v and_o annihilate_v yet_o nature_n can_v do_v neither_o and_o in_o the_o judgement_n of_o true_a philosopher_n i_o suppose_v our_o hypothesis_n will_v need_v no_o other_o advantage_n to_o make_v it_o be_v prefer_v before_o our_o adversary_n than_o that_o in_o we_o thing_n be_v explicate_v by_o the_o ordinary_a course_n of_o nature_n whereas_o in_o the_o other_o recourse_n must_v be_v have_v to_o miracle_n but_o though_o our_o author_n way_n of_o explicate_a rarefaction_n be_v thus_o improbable_a yet_o i_o must_v not_o here_o omit_v to_o take_v notice_n that_o his_o funiculus_fw-la suppose_v a_o condensation_n that_o to_o i_o appear_v encumber_v with_o no_o less_o manifest_a difficulty_n for_o since_o he_o teach_v that_o a_o body_n may_v be_v condense_v without_o either_o have_v any_o vacuity_n for_o the_o compress_a part_n to_o retire_v into_o or_o have_v pore_n fill_v with_o any_o subtle_a and_o yield_a matter_n that_o may_v be_v squeeze_v out_o of_o they_o it_o will_v follow_v that_o the_o part_n of_o the_o body_n to_o be_v condense_v do_v immediate_o touch_v each_o other_o which_o suppose_v i_o demand_v how_o body_n that_o be_v already_o contiguous_a can_v be_v bring_v to_o far_a approximation_n without_o penetrate_v each_o other_o at_o least_o in_o some_o of_o their_o part_n so_o that_o i_o see_v not_o how_o the_o examiner_n condensation_n can_v be_v perform_v without_o penetration_n of_o dimension_n a_o thing_n that_o philosopher_n of_o all_o age_n have_v look_v upon_o as_o by_o no_o mean_n to_o be_v admit_v in_o nature_n and_o our_o author_n himself_o speak_v somewhere_o at_o the_o same_o rate_n where_o to_o the_o question_n why_o the_o wall_n that_o enclose_v fire_v gunpowder_n must_v be_v blow_v asunder_o respondeo_fw-la say_v he_o haec_fw-la omne_fw-la inde_fw-la accidere_fw-la quod_fw-la pulvis_fw-la ille_fw-la sic_fw-la accensus_fw-la &_o in_fw-la flammam_fw-la conversus_fw-la 159._o long_o majus_fw-la spatium_fw-la nunc_fw-la occupet_fw-la quam_fw-la prius_fw-la vnde_fw-la fit_n ut_fw-la cum_fw-la totum_fw-la cubiculum_fw-la antea_fw-la fuerit_fw-la plenissimum_fw-la disrumpantur_fw-la sic_fw-la parietes_fw-la ne_fw-la detur_fw-la corporum_fw-la penetratio_fw-la in_o the_o magdeburgick_a experiment_n he_o tell_v we_o as_o we_o have_v hear_v already_o that_o the_o whole_a capacity_n of_o the_o globe_n be_v fill_v with_o a_o extremely-thin_a body_n but_o not_o now_o to_o examine_v how_o proper_o he_o call_v that_o a_o rare_a body_n which_o according_a to_o he_o intercept_v neither_o pore_n nor_o any_o heterogeneous_a substance_n the_o great_a or_o lesser_a absence_n of_o which_o make_v man_n call_v a_o body_n more_o or_o less_o dense_a not_o to_o insist_v on_o this_o i_o say_v let_v we_o consider_v that_o before_o the_o admission_n of_o water_n into_o the_o exhaust_a globe_n there_o be_v according_a to_o he_o two_o thousand_o half_a inch_n of_o a_o substance_n which_o however_o it_o be_v produce_v or_o get_v thither_o be_v a_o true_a and_o real_a body_n and_o that_o after_o the_o admission_n of_o the_o water_n there_o remain_v in_o the_o same_o globe_n beside_o the_o water_n that_o come_v in_o no_o more_o than_o one_o half_a inch_n of_o body_n since_o than_o our_o author_n do_v not_o pretend_v which_o if_o he_o do_v may_v be_v easy_o disprove_v that_o the_o one_o thousand_o nine_o hundred_o ninety_o nine_o half_a inch_n of_o matter_n that_o now_o appear_v no_o more_o traverse_v the_o body_n of_o water_n since_o he_o will_v not_o allow_v that_o it_o get_v away_o through_o the_o pore_n of_o the_o glass_n i_o demand_v what_o become_v of_o so_o great_a a_o quantity_n of_o matter_n for_o that_o it_o be_v annihilate_v i_o suppose_v he_o be_v too_o rational_a a_o man_n to_o pretend_v nor_o if_o he_o shall_v will_v it_o be_v at_o all_o believe_v and_o to_o say_v that_o a_o thousand_o and_o so_o many_o hundred_o part_n of_o matter_n shall_v be_v retire_v into_o that_o one_o part_n of_o space_n that_o contain_v the_o one_o half_a inch_n of_o air_n be_v little_o less_o incredible_a for_o that_o space_n be_v suppose_v perfect_o full_a of_o body_n before_o and_o how_o a_o thing_n can_v be_v more_o than_o perfect_o full_a who_o can_v conceive_v to_o dispatch_v according_a to_o our_o author_n way_n of_o condensation_n two_o or_o perhaps_o two_o thousand_o body_n may_v be_v crowd_v into_o a_o space_n that_o be_v adequate_o fill_v by_o one_o of_o they_o apart_o and_o if_o this_o be_v not_o penetration_n of_o dimension_n i_o desire_v to_o be_v inform_v what_o be_v so_o and_o till_o than_o i_o shall_v leave_v it_o to_o any_o unprepossessed_a naturalist_n to_o judge_v whether_o a_o hypothesis_n that_o needs_o suppose_v a_o thing_n so_o general_o conclude_v to_o be_v impossible_a to_o nature_n be_v probable_a or_o not_o and_o whether_o to_o tell_v we_o that_o the_o very_a same_o parcel_n of_o air_n that_o be_v now_o without_o violence_n contain_v in_o half_a a_o inch_n of_o space_n shall_v by_o and_o by_o fill_v two_o thousand_o time_n as_o much_o room_n and_o present_o after_o shrink_v again_o into_o the_o two_o thousand_o part_n of_o the_o space_n it_o new_o possess_v be_v not_o to_o turn_v a_o body_n into_o a_o spirit_n and_o confound_v their_o notion_n attribute_v to_o the_o former_a the_o discriminate_n and_o least_o easy_o conceivable_a property_n of_o the_o late_a and_o this_o argument_n be_v i_o confess_v with_o i_o of_o that_o weight_n that_o this_o alone_a will_v keep_v i_o from_o admit_v the_o examiner_n hypothesis_n yet_o if_o any_o happy_a contemplator_n shall_v prove_v so_o sharp-sighted_a as_o to_o devise_v and_o clear_o propose_v a_o way_n of_o make_v the_o rarefaction_n and_o condensation_n hitherto_o argue_v against_o intelligible_a to_o i_o he_o be_v not_o like_a to_o find_v i_o obstinate_a nor_o indeed_o be_v there_o sufficient_a cause_n why_o his_o succeed_a in_o that_o attempt_n shall_v make_v our_o adversary_n hypothesis_n preferable_a to_o we_o since_o that_o will_v not_o prove_v it_o either_o necessary_a or_o so_o much_o as_o sufficient_a but_o only_o answer_v some_o of_o the_o argument_n that_o tend_v to_o prove_v '_o its_o not_o intelligible_a and_o that_o we_o have_v other_o argument_n on_o our_o side_n than_o those_o that_o relate_v to_o rarefaction_n and_o condensation_n may_v appear_v partly_o by_o what_o have_v be_v discourse_v already_o and_o partly_o by_o what_o we_o have_v now_o to_o subjoin_v chap._n iu._n a_o consideration_n pertinent_a to_o the_o present_a controversy_n of_o what_o happen_v in_o try_v the_o torricellian_n and_o other_o experiment_n at_o the_o top_n and_o foot_n of_o hill_n there_o remain_v then_o yet_o a_o couple_n of_o consideration_n to_o be_v oppose_v against_o the_o examiner_n hypothesis_n which_o though_o the_o past_a discourse_n may_v make_v they_o
decimo_fw-la modo_fw-la producatur_fw-la modo_fw-la abbrevietur_fw-la etc._n etc._n sicque_fw-la argentum_fw-la nunc_fw-la demittat_fw-la nunc_fw-la elevet_fw-la for_o since_o we_o have_v make_v it_o probable_a that_o the_o copious_a fume_n sometime_o sudden_o ascend_v into_o the_o air_n and_o roll_v up_o and_o down_o in_o it_o sometime_o sensible_o alter_v if_o good_a author_n may_v be_v credit_v the_o refraction_n of_o it_o and_o since_o some_o other_o cause_n mention_v in_o our_o eighteen_o experiment_n may_v alter_v the_o density_n and_o gravity_n of_o the_o air_n that_o lean_v upon_o the_o restagnant_fw-la mercury_n i_o suppose_v the_o reader_n will_v think_v it_o more_o intelligible_a and_o probable_a that_o alteration_n other_o than_o those_o produce_v by_o heat_n and_o cold_a may_v happen_v to_o the_o incumbent_a atmosphere_n which_o free_o communicate_v with_o the_o neighbour_a air_n and_o may_v thereby_o become_v sometime_o more_o stuff_v and_o sometime_o more_o destitute_a of_o adventitious_a exhalation_n than_o that_o such_o change_n shall_v happen_v to_o a_o funiculus_fw-la include_v in_o glass_n which_o according_a to_o our_o author_n be_v impervious_a to_o the_o subtle_a steam_n that_o be_v and_o concern_v which_o he_o offer_v not_o so_o much_o as_o a_o conjecture_n upon_o what_o other_o account_n it_o can_v happen_v to_o be_v sometime_o contract_v and_o sometime_o stretch_v the_o 19_o experiment_n upon_o this_o the_o examiner_n have_v only_o this_o short_a animadversion_n in_o decimo_fw-la nono_fw-la ostendit_fw-la aquam_fw-la eodem_fw-la modo_fw-la per_fw-la exhaustionem_fw-la recipientis_fw-la descendere_fw-la quo_fw-la in_o praecedente_fw-la descendere_fw-la ostenderat_fw-la argentum_fw-la vivum_fw-la cujus_fw-la cum_fw-la eadem_fw-la sit_fw-la ratio_fw-la non_fw-la est_fw-la cur_n amplius_fw-la ei_fw-la insistamus_fw-la in_o which_o word_n since_o he_o offer_v nothing_o new_a or_o peculiar_a to_o show_v any_o incongruity_n in_o our_o explication_n to_o our_o principle_n which_o agree_v very_o well_o with_o the_o new_a phaenomena_n of_o the_o experiment_n we_o be_v content_a to_o leave_v the_o reader_n to_o judge_v of_o the_o hypothesis_n themselves_o which_o of_o the_o two_o be_v the_o more_o probable_a either_o we_o that_o only_o require_v that_o the_o air_n in_o the_o receiver_n shall_v equal_o resist_v a_o cylinder_n of_o water_n and_o of_o quicksilver_n when_o their_o weight_n be_v but_o the_o same_o though_o their_o altitude_n be_v not_o or_o the_o examiner_n which_o exact_v that_o according_a to_o what_o we_o former_o elsewhere_o note_v body_n of_o such_o differ_a nature_n and_o texture_n as_o quicksilver_n and_o water_n shall_v need_v but_o just_a the_o same_o weight_n or_o strength_n to_o rarefie_v they_o into_o a_o funiculus_fw-la the_o 20_o experiment_n in_o his_o examen_fw-la of_o this_o experiment_n our_o author_n make_v i_o infer_v from_o the_o phaenomena_n he_o repeat_v that_o not_o only_o the_o air_n but_o the_o water_n also_o have_v a_o spring_n but_o though_o i_o suspect_v not_o that_o he_o do_v wilful_o mistake_v my_o sense_n yet_o by_o what_o i_o write_v in_o this_o and_o the_o follow_a experiment_n the_o reader_n may_v well_o enough_o perceive_v that_o i_o speak_v but_o very_o doubtful_o of_o a_o spring_n in_o the_o water_n nay_o and_o that_o i_o do_v in_o the_o 154_o page_n express_o teach_v that_o the_o intumescence_n of_o it_o may_v at_o least_o in_o great_a part_n proceed_v from_o that_o of_o the_o small_a parcel_n of_o air_n which_o i_o think_v to_o be_v usual_o harbour_v in_o the_o body_n of_o that_o liquor_n but_o whereas_o i_o ascribe_v the_o appearance_n of_o the_o bubble_n in_o the_o water_n to_o this_o that_o upon_o the_o exhaustion_n of_o some_o of_o the_o air_n incumbent_a on_o the_o water_n the_o pressure_n of_o what_o remain_v be_v much_o debilitate_a whereby_o the_o little_a particle_n of_o air_n lurk_v in_o the_o water_n be_v allow_v to_o expand_v themselves_o into_o bubble_n he_o reject_v this_o explication_n as_o manifest_o false_a no_o manifest_a say_v he_o si_fw-la ita_fw-la fieret_fw-la deberent_fw-la profecto_fw-la hujusmodi_fw-la bullulae_fw-la non_fw-la è_fw-la fundo_fw-la vasis_fw-la sic_fw-la ascendere_fw-la uti_fw-la tam_fw-la in_o hoc_fw-la quam_fw-la in_o sequentibus_fw-la experimentis_fw-la in_o quibus_fw-la de_fw-la istis_fw-la bullis_fw-la agitur_fw-la semper_fw-la asseritur_fw-la sed_fw-la è_fw-la superiore_fw-la parte_fw-la aquae_fw-la ubi_fw-la minus_fw-la premuntur_fw-la ut_fw-la per_fw-la se_fw-la est_fw-la manifestum_fw-la but_o why_o he_o shall_v be_v here_o so_o peremptory_a i_o confess_v i_o do_v not_o for_o all_o this_o objection_n yet_o see_v for_o in_o the_o bottom_n of_o the_o next_o page_n he_o say_v he_o will_v not_o deny_v but_o that_o aërial_a particle_n latitant_fw-la in_o the_o other_o part_n of_o the_o water_n he_o have_v before_o speak_v of_o the_o bottom_n of_o it_o may_v be_v extend_v into_o bubble_n by_o his_o way_n of_o rarefaction_n and_o that_o we_o particular_o mention_v the_o rise_n of_o bubble_n even_o from_o the_o bottom_n of_o the_o water_n be_v because_o that_o circumstance_n seem_v to_o deserve_v a_o peculiar_a note_n and_o not_o as_o he_o seem_v to_o imagine_v as_o if_o the_o bubble_n do_v not_o also_o rise_v from_o the_o superior_a part_n of_o the_o liquor_n since_o we_o do_v take_v notice_n of_o it_o about_o the_o middle_n of_o the_o 149_o page_n and_o we_o often_o in_o this_o and_o the_o follow_a etc._n experiment_n observe_v that_o the_o ascend_a bubble_n grow_v big_a the_o near_o they_o come_v to_o the_o top_n which_o agree_v more_o clear_o with_o our_o hypothesis_n wherein_o their_o conspicuous_a swell_a as_o they_o ascend_v be_v attribute_v more_o to_o the_o lessen_v of_o the_o pressure_n of_o the_o incumbent_a air_n than_o to_o the_o decrement_n of_o the_o weight_n of_o the_o incumbent_a water_n since_o when_o the_o surface_n of_o this_o liquor_n be_v lean_v upon_o by_o the_o atmosphere_n the_o ascend_a bubble_n scarce_o sensible_o increase_v in_o vessel_n no_o deep_o than_o we_o then_o with_o the_o explication_n which_o the_o examiner_n give_v in_o these_o word_n respondeo_fw-la aquam_fw-la per_fw-la illant_fw-fr aëris_fw-la exhaustionem_fw-la non_fw-la sponte_fw-la sic_fw-la ascendere_fw-la sed_fw-la sursum_fw-la violent_a trahi_fw-la ac_fw-la elevari_fw-la à_fw-la rare_a facto_fw-la illo_fw-la aëre_fw-la seize_v contrahente_fw-la quemadmodum_fw-la enim_fw-la aqua_fw-la aliqualem_fw-la patitur_fw-la compressionem_fw-la ut_fw-la experientiâ_fw-la constat_fw-la it_o a_o &_o aliqualem_fw-la quoque_fw-la hic_fw-la patitur_fw-la distentionem_fw-la atque_fw-la hinc_fw-la clarè_v patet_fw-la cur_n potius_fw-la à_fw-la fundo_fw-la va_v quam_fw-la à_fw-la parte_fw-la aquae_fw-la superiore_fw-la oriantur_fw-la hujusmodi_fw-la bullae_fw-la cum_fw-la enim_fw-la vehemens_fw-la illa_fw-la suctio_fw-la conetur_fw-la aquam_fw-la à_fw-la fundo_fw-la phialae_fw-la elevare_fw-la nascitur_fw-la ibidem_fw-la subtilis_fw-la quaedam_fw-la materia_fw-la quae_fw-la in_o bullas_fw-la conversa_fw-la sic_fw-la ascendit_fw-la uti_fw-la capite_fw-la decimo_fw-la quinto_fw-la in_o quarto_fw-la experimento_fw-la dictum_fw-la est_fw-la for_o whatever_o he_o may_v think_v it_o do_v not_o hence_o so_o clear_o appear_v how_o the_o endeavour_n only_o of_o the_o funiculus_fw-la to_o draw_v up_o the_o water_n from_o the_o bottom_n of_o the_o vial_n to_o which_o that_o endeavour_v notwithstanding_o it_o remain_v contiguous_a shall_v generate_v in_o some_o part_n of_o the_o bottom_n of_o the_o glass_n and_o not_o in_o other_o such_o a_o subtle_a matter_n as_o he_o tell_v we_o of_o and_o i_o suppose_v the_o reader_n will_v as_o well_o as_o i_o wish_v he_o have_v more_o intelligible_o declare_v how_o this_o strange_a generation_n of_o subtle_a matter_n come_v to_o be_v effect_v and_o i_o presume_v it_o will_v likewise_o be_v expect_v that_o he_o also_o declare_v why_o both_o in_o our_o case_n and_o in_o the_o torricellian_a experiment_n the_o bubble_n grow_v so_o much_o large_a by_o be_v near_o the_o top_n of_o the_o liquor_n if_o as_o he_o reject_v our_o explication_n of_o this_o circumstance_n the_o effect_n of_o the_o suction_n he_o speak_v of_o be_v great_a upon_o the_o low_a part_n of_o the_o liquor_n than_o the_o upper_a to_o which_o alone_o nevertheless_o his_o funiculus_fw-la that_o be_v say_v so_o to_o draw_v the_o liquor_n be_v contiguous_a our_o author_n make_v no_o particular_a objection_n against_o the_o 10_o follow_a experiment_n we_o also_o shall_v pass_v they_o by_o and_o fall_v with_o he_o upon_o the_o consideration_n of_o the_o 31_o experiment_n the_o 31_o experiment_n upon_o this_o our_o author_n have_v recite_v our_o conjecture_n as_o the_o cause_n why_o two_o very_a flat_a and_o smooth_a marble_n stick_v so_o close_o together_o that_o by_o lift_v up_o the_o uppermost_a you_o may_v take_v up_o also_o the_o lowermost_a approve_v my_o way_n of_o examine_v that_o conjecture_n but_o whereas_o i_o say_v that_o the_o reason_n why_o though_o the_o marble_n be_v keep_v together_o by_o the_o pressure_n of_o the_o ambient_fw-la air_n yet_o they_o do_v not_o fall_v asunder_o in_o our_o exhaust_a receiver_n no_o not_o though_o a_o weight_n of_o
the_o bladder_n each_o of_o they_o be_v able_a to_o maintain_v but_o a_o very_a small_a vortice_fw-la to_o be_v by_o the_o subside_v mercury_n in_o the_o torricellian_a experiment_n free_v from_o the_o pressure_n of_o the_o air_n and_o their_o motion_n continue_v the_o same_o by_o reason_n that_o the_o transcursion_n of_o their_o vehicles_n be_v not_o at_o all_o or_o very_o little_a hinder_v either_o by_o the_o glass_n or_o bladder_n their_o part_n have_v room_n to_o expand_v themselves_o will_v fly_v abroad_o to_o such_o extension_n as_o may_v perhaps_o make_v a_o vortice_fw-la 1000_o time_n as_o big_a in_o bulk_n as_o what_o they_o be_v not_o able_a just_o before_o to_o exceed_v hence_o the_o particle_n of_o the_o air_n be_v so_o gross_a as_o not_o easy_o to_o pervade_v the_o pore_n of_o the_o bladder_n must_v necessary_o drive_v out_o the_o side_n of_o the_o bladder_n to_o its_o utmost_a extent_n and_o serve_v to_o fill_v the_o receiver_n in_o the_o magdeburgick_a experiment_n now_o whereas_o these_o particle_n will_v by_o the_o same_o pressure_n of_o the_o air_n be_v reduce_v to_o the_o same_o state_n they_o be_v in_o at_o first_o that_o be_v to_o be_v throng_v into_o a_o very_a little_a room_n and_o thereby_o be_v able_a to_o maintain_v a_o very_a small_a vortice_fw-la the_o air_n let_v in_o in_o the_o torricellian_a experiment_n reduce_v the_o air_n in_o the_o bladder_n to_o its_o former_a inconspicuousness_n as_o the_o admission_n of_o the_o water_n in_o the_o magdeburg_n experiment_n do_v that_o receiver_n full_a of_o rarefy_a air_n into_o the_o bigness_n of_o a_o hazel_n nut._n now_o the_o water_n in_o this_o last-mentioned_a experiment_n enter_v with_o a_o great_a impetuosity_n because_o drive_v on_o with_o the_o whole_a pressure_n of_o the_o atmosphere_n and_o resist_v only_o by_o the_o small_a force_n of_o the_o so-far_a rarefy_a air._n as_o for_o the_o author_n objection_n against_o this_o way_n of_o rarefaction_n draw_v from_o the_o phaenomena_n of_o gunpowder_n i_o shall_v endeavour_v to_o answer_v it_o by_o show_v they_o possible_o explicable_a by_o a_o cartesian_a hypothesis_n for_o suppose_v those_o terrestrial_a part_n of_o the_o gunpowder_n to_o be_v first_o at_o rest_n and_o afterward_o agitate_a by_o the_o rapid_a motion_n of_o his_o first_o element_n there_o will_v be_v sufficient_a difference_n of_o the_o former_a and_o late_a condition_n in_o respect_n of_o extension_n and_o suppose_v the_o particular_a constitution_n of_o gunpowder_n arise_v partly_o from_o the_o specific_a form_n of_o the_o particle_n of_o its_o ingredient_n nitre_n sulphur_n and_o char-coal_n and_o partly_o from_o their_o proportionate_a commistion_n to_o be_v such_o as_o will_v ready_o yield_v to_o the_o motion_n of_o his_o materia_fw-la subtilis_fw-la so_o soon_o as_o a_o ingress_n be_v admit_v to_o it_o by_o the_o fire_n of_o any_o particular_a parcel_n of_o it_o the_o expansion_n will_v be_v speedy_a enough_o so_o then_o let_v we_o suppose_v a_o barrel_n of_o gunpowder_n place_v in_o some_o close_a room_n to_o some_o grain_n of_o which_o we_o will_v suppose_v some_o actual_a fire_n to_o be_v apply_v by_o which_o actual_a fire_n the_o texture_n of_o the_o powder_n be_v such_o those_o grain_n be_v sudden_o fire_v that_o be_v many_o million_o of_o part_n which_o before_o lay_v still_o and_o at_o rest_n be_v by_o the_o action_n of_o the_o burn_a coal_n shatter_v as_o it_o be_v and_o put_v into_o a_o posture_n ready_a to_o be_v agitate_a by_o the_o rapid_a motion_n of_o the_o materia_fw-la subtilis_fw-la into_o which_o posture_n they_o be_v no_o soon_o put_v than_o agitate_a and_o whirl_v sufficient_o by_o it_o whence_o follow_v a_o vast_a expansion_n of_o that_o part_n of_o gunpowder_n so_o fire_v for_o each_o of_o its_o part_n be_v thus_o whirl_v and_o hurry_v round_o expel_v and_o beat_v off_o with_o great_a violence_n all_o the_o contiguous_a particle_n so_o as_o that_o each_o particle_n take_v up_o now_o 1000_o time_n as_o much_o elbow-room_n if_o i_o may_v so_o speak_v as_o just_a before_o serve_v its_o turn_n and_o consequent_o those_o that_o be_v outermost_a take_v every_o one_o their_o way_n direct_o from_o the_o parcel_n or_o corn_n they_o have_v lie_v quiet_a in_o be_v hurry_v away_o by_o the_o sudden_a expansion_n of_o the_o particle_n that_o lie_v next_o within_o they_o so_o that_o whatever_o grain_n or_o parcel_n of_o gunpowder_n they_o chance_v to_o meet_v with_o before_o they_o have_v lose_v their_o motion_n they_o present_o shiver_v and_o put_v into_o such_o a_o motion_n as_o make_v they_o fit_a to_o receive_v the_o action_n of_o the_o materia_fw-la subtilis_fw-la which_o subtle_a matter_n be_v every_o where_o present_a and_o nothing_o slow_a in_o perform_v its_o office_n immediate_o agitate_v those_o also_o like_o the_o former_a so_o that_o in_o a_o trice_n the_o particle_n of_o the_o whole_a barrel_n of_o gunpowder_n be_v thus_o disorder_v and_o by_o the_o motion_n the_o materia_fw-la subtilis_fw-la must_v needs_o be_v hurry_v away_o with_o so_o great_a a_o impetuosity_n on_o all_o side_n as_o not_o only_o to_o break_v in_o piece_n its_o slight_a wooden_a prison_n and_o remove_v the_o light_a particle_n of_o the_o ambient_fw-la air_n but_o huge_a beam_n nay_o vast_a accumulate_v mass_n of_o the_o most_o compact_a structure_n of_o stone_n and_o even_o shake_v the_o very_a earth_n itself_o or_o whatever_o else_o stand_v in_o its_o way_n who_o texture_n be_v so_o close_o as_o not_o to_o give_v its_o particle_n free_a passage_n through_o its_o pore_n this_o understand_v i_o see_v not_o first_o what_o the_o author_n be_v three_o argument_n bring_v to_o prove_v his_o objection_n signify_v for_o there_o be_v no_o more_o corpuscle_n in_o the_o room_n before_o the_o gunpowder_n be_v fire_v than_o after_o nor_o be_v there_o any_o more_o matter_n or_o substance_n before_o the_o side_n of_o the_o room_n by_o yield_a give_v place_n for_o the_o external_a fluid_a body_n to_o succeed_v and_o the_o only_a change_n be_v this_o that_o the_o globuli_fw-la secundi_fw-la elementi_fw-la as_o he_o call_v they_o be_v expel_v out_o of_o the_o room_n and_o the_o materia_fw-la primi_fw-la elementi_fw-la succeed_v in_o the_o place_n of_o it_o nor_o do_v i_o see_v second_o what_o great_a reason_n he_o have_v for_o his_o grand_a conclusion_n haeo_n abundè_fw-la demonstrant_fw-la rarefactionem_fw-la per_fw-la hujusmodi_fw-la corpuscula_fw-la nullatenus_fw-la posse_fw-la explicari_fw-la have_v thus_o examine_v the_o author_n first_o argument_n that_o rarefaction_n can_v be_v make_v out_o by_o any_o other_o way_n than_o he_o we_o shall_v find_v his_o other_o which_o he_o bring_v to_o establish_v his_o own_o hypothesis_n much_o of_o the_o same_o kind_n as_o first_o that_o his_o way_n of_o rarefaction_n imply_v no_o contradiction_n for_o if_o the_o affirm_v a_o body_n to_o be_v real_o and_o total_o in_o this_o place_n and_o at_o the_o same_o time_n to_o be_v real_o and_o whole_o in_o another_o that_o be_v to_o be_v in_o this_o place_n and_o not_o to_o be_v in_o this_o place_n be_v not_o a_o contradiction_n i_o know_v not_o what_o be_v next_o that_o some_o learned_a schoolman_n have_v think_v so_o to_o which_o i_o answer_v more_o learned_a man_n have_v think_v otherwise_o and_o last_o that_o there_o be_v very_o plain_a example_n of_o the_o like_a nature_n to_o be_v find_v in_o other_o thing_n of_o which_o he_o only_o bring_v one_o viz._n that_o of_o the_o rota_n aristotelica_n which_o upon_o examination_n we_o shall_v find_v to_o make_v as_o little_a to_o the_o purpose_n as_o any_o of_o the_o other_o a_o explication_n of_o the_o rota_n aristotelica_n the_o great_a problem_n of_o the_o rota_n aristotelica_n by_o his_o explication_n of_o which_o he_o pretend_v not_o only_o to_o solve_v all_o the_o difficulty_n concern_v local_a motion_n quae_fw-la philosophorum_fw-la ingenia_fw-la bactenus_fw-la valde_fw-la exercuerunt_fw-la but_o to_o give_v a_o instance_n for_o the_o confirmation_n of_o his_o unintelligible_a hypothesis_n of_o rarefaction_n wherein_o there_o be_v extensio_fw-la seu_fw-la correspondentia_fw-la ejusdem_fw-la rei_fw-la ad_fw-la locum_fw-la nunc_fw-la majorem_fw-la nunc_fw-la minorem_fw-la we_o may_v upon_o examination_n find_v to_o be_v either_o a_o paralogism_n or_o else_o nothing_o but_o what_o those_o philosopher_n say_v who_o he_o account_v gravel_v with_o it_o of_o this_o subject_a he_o begin_v in_o his_o 25_o chapter_n where_o after_o he_o have_v set_v down_o a_o description_n of_o it_o he_o make_v a_o instance_n in_o a_o cartwheel_n rem_fw-la ante_fw-la oculos_fw-la ponit_fw-la rota_fw-la alicujus_fw-la currus_fw-la ejusque_fw-la umbo_fw-la seu_fw-la lignum_fw-la illudcrassum_fw-la &_o rotundum_fw-la cui_fw-la infiguntur_fw-la radii_fw-la siquidem_fw-la dum_fw-la progrediente_fw-la curru_fw-la ipsa_fw-la rota_fw-la circumduct_v a_o describit_fw-la in_o subject_a a_o terra_fw-la orbitam_fw-la sibi_fw-la aequalem_fw-la umbo_fw-la ille_fw-la describit_fw-la in_o subjecto_fw-la aëre_fw-la orbitam_fw-la i_o suppose_v both_o
vessel_n the_o air_n thrust_v away_o by_o he_o that_o suck_v can_v at_o all_o come_v to_o bear_v or_o press_v upon_o the_o water_n and_o yet_o whether_o the_o pipe_n be_v incline_v or_o erect_v the_o water_n do_v according_a to_o my_o expectation_n easy_o enough_o ascend_v upon_o suction_n to_o the_o top_n of_o the_o pipe_n and_o run_v over_o into_o my_o mouth_n i_o say_v easy_o enough_o because_o that_o though_o the_o spring_n of_o the_o air_n pen_v up_o in_o the_o vial_n be_v able_a upon_o the_o decrease_n of_o the_o pressure_n of_o the_o outward_a air_n occasion_v by_o my_o suck_n to_o impel_v the_o water_n strong_o enough_o into_o the_o pipe_n yet_o when_o a_o pretty_a quantity_n of_o water_n have_v be_v so_o impel_v up_o the_o include_v air_n gain_v thereby_o more_o room_n to_o expand_v itself_o its_o spring_n be_v thereby_o so_o far_o weaken_v that_o the_o water_n ascend_v far_o less_o easy_o than_o in_o ordinary_a suction_n the_o other_o circumstance_n worth_a note_v in_o this_o experiment_n belong_v not_o to_o this_o place_n and_o what_o have_v be_v deliver_v may_v i_o hope_v suffice_v for_o the_o purpose_n it_o be_v allege_v for_o only_o one_o particular_a i_o shall_v here_o add_v by_o way_n of_o confirmation_n of_o what_o i_o say_v touch_v the_o weaken_v spring_n of_o the_o air_n and_o it_o be_v this_o that_o partly_o to_o show_v some_o who_o yet_o embrace_v the_o opinion_n of_o the_o school_n that_o the_o ascension_n of_o the_o water_n in_o the_o pipe_n do_v not_o proceed_v from_o any_o such_o tendency_n in_o the_o water_n itself_o to_o ascend_v for_o prevention_n of_o a_o vacuum_n and_o partly_o for_o other_o reason_n that_o concern_v not_o this_o place_n i_o do_v careful_o take_v out_o the_o water_n by_o degree_n till_o the_o low_a end_n of_o the_o pipe_n be_v but_o very_o little_a under_o the_o surface_n of_o the_o water_n though_o in_o the_o cavity_n of_o the_o pipe_n the_o water_n as_o it_o usual_o will_v be_v in_o pipe_n that_o be_v not_o wide_a be_v a_o pretty_a deal_n high_o then_o suffer_v the_o vessel_n to_o rest_v and_o suck_v at_o the_o upper_a end_n of_o the_o pipe_n the_o water_n as_o i_o foresee_v it_o will_v be_v be_v impel_v up_o yet_o without_o reach_v near_o the_o top_n till_o the_o surface_n of_o it_o be_v fall_v a_o little_a below_o the_o bottom_n of_o the_o pipe_n but_o then_o though_o i_o continue_v suck_v no_o more_o water_n ascend_v into_o the_o pipe_n but_o the_o air_n pass_v through_o it_o towards_o my_o mouth_n do_v in_o its_o passage_n toss_v up_o the_o water_n that_o be_v already_o in_o the_o pipe_n and_o turn_v it_o into_o bubble_n of_o a_o strong_a bigness_n when_o the_o cavity_n of_o the_o pipe_n will_v permit_v it_o which_o break_v not_o without_o noise_n one_o after_o another_o and_o thus_o the_o ascend_a air_n for_o a_o pretty_a while_n keep_v the_o water_n in_o the_o pipe_n from_o fall_v back_o to_o that_o in_o the_o vial._n but_o when_o i_o remove_v my_o mouth_n the_o spring_n of_o the_o air_n remain_v in_o the_o cavity_n of_o the_o vial_n be_v debilitate_a by_o the_o recess_n of_o the_o air_n i_o have_v as_o man_n be_v wont_a to_o speak_v suck_v out_o it_o be_v not_o able_a to_o resist_v the_o pressure_n of_o the_o outward_a air_n and_o according_o the_o water_n in_o the_o pipe_n be_v not_o only_o depress_v into_o the_o vial_n but_o the_o outward_a air_n force_v its_o way_n in_o many_o bubble_n and_o not_o without_o some_o noise_n through_o the_o water_n contiguous_a to_o the_o bottom_n of_o the_o pipe_n till_o the_o pressure_n of_o the_o include_v air_n and_o that_o of_o the_o atmosphere_n be_v reduce_v to_o a_o equality_n but_o in_o the_o same_o 25._o page_n our_o author_n tell_v we_o that_o the_o society_n he_o write_v against_o will_v have_v the_o cause_n of_o filtration_n and_o that_o of_o the_o passage_n of_o water_n through_o siphons_n to_o be_v the_o same_o to_o which_o he_o annex_v this_o peremptory_a passage_n id_fw-la vero_fw-la impossibile_fw-it est_fw-la no_o in_o siphone_n nisi_fw-la ambo_fw-la crura_fw-la aquâ_fw-la impleantur_fw-la aqua_fw-la è_fw-la pelvi_fw-la non_fw-la ascendet_fw-la ascensionis_fw-la causa_fw-la in_o pannum_fw-la est_fw-la motus_fw-la ille_fw-la terrearum_fw-la atomorum_fw-la quae_fw-la aquae_fw-la contiguae_fw-la sunt_fw-la motus_fw-la inquam_fw-la circularis_fw-la simplex_fw-la aëri_fw-la in_o quo_fw-la moventur_fw-la communicatus_fw-la quae_fw-la atomy_n aquam_fw-la ferientes_fw-la in_o materiam_fw-la laneam_fw-la incutiunt_fw-la incussae_fw-la autem_fw-la magis_fw-la magisque_fw-la madefaciunt_fw-la donec_fw-la madida_fw-la tota_fw-la sit_fw-la cum_fw-la vero_fw-la madida_fw-la tota_fw-la sit_fw-la etc._n etc._n thus_o far_o he_o but_o the_o passage_n in_o my_o epistle_n upon_o which_o he_o seem_v to_o have_v ground_v his_o opposition_n be_v but_o this_o wherewith_o i_o begin_v my_o 35._o experiment_n some_o learned_a mathematician_n i_o mean_v the_o industrious_a schottus_n and_o some_o cartesian_o have_v of_o late_o ingenious_o endeavour_v to_o reduce_v filtre_n to_o siphons_n but_o still_o the_o cause_n of_o the_o ascension_n of_o water_n and_o other_o liquor_n both_o in_o siphons_n and_o in_o filtration_n need_v for_o aught_o we_o have_v yet_o find_v a_o clear_a discovery_n and_o explication_n we_o be_v desirous_a to_o try_v etc._n etc._n so_o that_o neither_o do_v i_o ascribe_v this_o reduction_n of_o filtre_n to_o siphons_n to_o a_o society_n which_o be_v not_o then_o in_o be_v nor_o perhaps_o so_o much_o as_o design_v nor_o do_v i_o adopt_v it_o myself_o but_o express_v a_o desire_n to_o have_v it_o further_o examine_v but_o as_o for_o the_o cause_n of_o filtration_n itself_o i_o may_v take_v a_o fit_a opportunity_n to_o discourse_v of_o it_o in_o the_o mean_a time_n i_o doubt_v whether_o the_o reason_n here_o assign_v by_o mr._n hobbs_n will_v not_o seem_v as_o well_o precarious_a as_o the_o motus_fw-la circularis_fw-la simplex_fw-la of_o earthly_a atom_n whereon_o it_o be_v ground_v nor_o do_v his_o explication_n render_v a_o reason_n why_o quicksilver_n will_v not_o ascend_v the_o 14._o part_n as_o high_a in_o the_o filtre_n though_o in_o part_n immerse_v into_o it_o as_o water_n nay_o will_v not_o reach_v so_o high_a where_o it_o be_v contiguous_a to_o the_o filtre_n as_o where_o it_o be_v not_o nor_o why_o it_o shall_v begin_v to_o ascend_v since_o for_o aught_o he_o show_v to_o the_o contrary_a the_o pressure_n of_o the_o air_n even_o in_o the_o sense_n he_o take_v the_o air_n aught_o to_o be_v the_o same_o on_o that_o part_n of_o the_o surface_n of_o the_o liquor_n which_o be_v contiguous_a to_o the_o filtre_n and_o on_o any_o other_o part_n of_o the_o same_o surface_n to_o which_o i_o shall_v only_o add_v that_o as_o resolute_o as_o mr._n hobbs_n say_v it_o be_v impossible_a for_o the_o water_n to_o ascend_v out_o of_o the_o vessel_n into_o a_o siphon_n unless_o both_o the_o leg_n be_v fill_v with_o that_o liquor_n he_o will_v probable_o have_v speak_v more_o wary_o and_o distinguish_v betwixt_o siphons_n if_o he_o have_v be_v please_v to_o take_v notice_n of_o what_o i_o relate_v in_o the-forementioned_n 35._o experiment_n of_o a_o small_a glass-siphon_a i_o devise_v whereof_o when_o the_o short_a leg_n be_v but_o dip_v in_o water_n the_o liquor_n do_v present_o as_o it_o be_v of_o itself_o run_v down_o the_o long_a leg_n which_o experiment_n beside_o other_o consideration_n may_v induce_v we_o to_o suspect_v that_o the_o nature_n of_o siphons_n and_o of_o filtration_n may_v not_o yet_o be_v so_o thorough_o understand_v as_o not_o to_o deserve_v a_o further_a enquiry_n but_o to_o draw_v at_o length_n towards_o a_o conclusion_n of_o our_o troublesome_a examen_fw-la it_o remain_v only_o that_o i_o take_v some_o notice_n of_o the_o general_a corollary_n that_o mr._n hobbs_n be_v please_v to_o deduce_v from_o his_o whole_a discourse_n of_o the_o experiment_n exhibit_v in_o our_o engine_n a._n fateris_fw-la ergo_fw-la say_v he_o nihil_fw-la hactenus_fw-la à_fw-la collegis_fw-la tuis_fw-la promotam_fw-la esse_fw-la scientiam_fw-la causarum_fw-la naturalium_fw-la 23._o nisi_fw-la quod_fw-la unus_fw-la eorum_fw-la machinam_fw-la invenerit_fw-la qua_fw-la motus_fw-la excitari_fw-la aeris_fw-la possit_fw-la talis_fw-la ut_fw-la part_n sphaerae_fw-la simul_fw-la undiquaque_fw-la tendant_a ad_fw-la centrum_fw-la &_o ut_fw-la hypothesis_n hobbianae_n ante_fw-la quidem_fw-la satis_fw-la probabiles_fw-la hinc_fw-la reddantur_fw-la probabiliores_fw-la b._n nec_fw-la fateri_fw-la pudet_fw-la nam_fw-la est_fw-la aliquid_fw-la prodire_fw-la tenus_fw-la si_fw-la non_fw-la datur_fw-la ultra_fw-la a._n quid_fw-la tenus_fw-la quorsum_fw-la autem_fw-la tantus_fw-la apparatus_n &_o sumptus_fw-la machinarum_fw-la factu_fw-la difficilium_fw-la ut_fw-la eatenus_fw-la tantum_fw-la prodiretis_fw-la quantum_fw-la ante_fw-la prodierat_fw-la hobbius_n cur_n non_fw-la inde_fw-la potius_fw-la incepistis_fw-la ubi_fw-la ille_fw-la desiit_fw-la cur_n principiis_fw-la ab_fw-la eo_fw-la positis_fw-la non_fw-la estis_fw-la usi_fw-la cumque_fw-la aristoteles_n recte_fw-la dixisset_fw-la
very_a passage_n and_o within_o a_o very_a few_o line_n he_o have_v recourse_n in_o this_o matter_n to_o god_n omnipotence_n i_o see_v not_o why_o a_o infinite_a division_n can_v be_v as_o well_o conceive_v as_o a_o infinite_a divisibility_n since_o sure_a a_o omnipotent_a agent_n be_v able_a to_o do_v what_o be_v possible_a to_o be_v do_v and_o why_o else_o shall_v a_o body_n be_v call_v infinite_o divisible_a beside_o when_o mr._n hobbs_n have_v recourse_n to_o what_o god_n can_v do_v who_o omnipotence_n we_o have_v both_o great_a reason_n to_o acknowledge_v it_o import_v not_o to_o the_o controversy_n about_o fluidity_n to_o determine_v what_o the_o almighty_a creator_n can_v do_v but_o what_o he_o actual_o have_v do_v and_o last_o whereas_o my_o adversary_n require_v to_o have_v the_o magnitude_n define_v which_o a_o part_n of_o a_o fall_a wall_n ought_v to_o have_v to_o deserve_v the_o name_n of_o fluid_a first_o he_o shall_v have_v clear_o prove_v that_o fluidity_n belong_v to_o 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of_o it_o nor_o do_v i_o content_v myself_o with_o the_o proofless_a proposal_n of_o my_o conjecture_n but_o i_o deliver_v in_o several_a part_n of_o the_o often_o mention_a history_n particular_a experiment_n to_o evince_v what_o i_o teach_v as_o that_o a_o consistent_a coagulum_fw-la of_o pure_a spirit_n of_o urine_n and_o wine_n may_v by_o bare_a digestion_n be_v turn_v into_o a_o permanent_a liquor_n and_o that_o the_o fluid_a body_n of_o quicksilver_n may_v without_o any_o sensible_a addition_n be_v turn_v into_o a_o permanent_a dry_a powder_n and_o may_v again_o in_o a_o trice_n by_o bare_a heat_n be_v turn_v into_o a_o last_o fluid_a body_n whereto_o i_o add_v other_o experiment_n which_o together_o with_o these_o mr._n hobbs_n will_v possible_o have_v think_v fit_a to_o answer_v if_o he_o have_v find_v it_o easy_a for_o he_o to_o do_v so_o after_o this_o passage_n extant_a in_o mr._n hobbs_n five_o page_n that_o i_o have_v all_o this_o while_n be_v examine_v i_o remember_v nothing_o in_o his_o dialogue_n that_o require_v to_o be_v insist_v on_o about_o fluidity_n and_o firmness_n till_o we_o come_v to_o the_o 29._o page_n where_o have_v ask_v what_o cause_n the_o academian_o assign_v of_o hardness_n it_o be_v answer_v that_o some_o of_o they_o assign_v three_o to_o which_o mr._n hobbs_n so_o far_o agree_v as_o to_o say_v quin_fw-la corpuscula_fw-la qualia_fw-la sunt_fw-la atomy_n quas_fw-la supponit_fw-la 29._o lucretius_n atque_fw-la etiam_fw-la hobbius_n jam_fw-la ante_fw-la dur_fw-la a_o facile_fw-la possint_fw-la ab_fw-la aliqua_fw-la dict_z arum_fw-la causaram_fw-la compingi_fw-la it_o a_o ut_fw-la totum_fw-la ex_fw-la illis_fw-la factum_fw-la durum_fw-la fiat_fw-la dubitandum_fw-la non_fw-la est_fw-la but_o then_o he_o will_v have_v we_o assign_v the_o cause_n of_o that_o he_o call_v durum_fw-la primum_fw-la but_o after_o some_o discourse_n wherein_o he_o be_v please_v to_o approve_v a_o objection_n of_o i_o against_o some_o learned_a man_n that_o ascribe_v all_o cohesion_n of_o body_n to_o a_o certain_a glue_n he_o answer_v himself_o the_o objection_n he_o frame_v against_o my_o doctrine_n about_o hardness_n and_o thereby_o allow_v i_o to_o proceed_v to_o what_o he_o further_o press_v in_o these_o word_n si_fw-la dura_fw-la ex_fw-la primis_fw-la duris_fw-la fieri_fw-la dicant_fw-la quare_fw-la non_fw-la &_o fluida_fw-la fieri_fw-la putant_fw-la ex_fw-la primis_fw-la fluidis_fw-la an_fw-mi creari_fw-la fluida_fw-la maxima_fw-la potuere_fw-la ut_fw-la aether_fw-la minima_fw-la 30._o non_fw-la potuere_fw-la qui_fw-la corpusculum_fw-la durum_fw-la aut_fw-la fluidum_fw-la primus_fw-la fecit_fw-la potuit_fw-la si_fw-la libuisset_fw-la illud_fw-la fecisse_fw-la tum_fw-la majus_fw-la tum_fw-la minus_fw-la quocunque_fw-la corpore_fw-la dato_fw-la quod_fw-la si_fw-la fluidum_fw-la fiat_fw-la ex_fw-la non_fw-la fluidis_fw-la ut_fw-la vos_fw-la dicitis_fw-la &_o durum_fw-la ex_fw-la duris_fw-la tantum_fw-la nun_n sequitur_fw-la ex_fw-la fluidis_fw-la primis_fw-la neque_fw-la fluidum_fw-la fieri_fw-la neque_fw-la durum_fw-la but_o against_o this_o passage_n i_o have_v divers_a thing_n to_o represent_v for_o first_o not_o now_o to_o mention_v that_o it_o may_v be_v question_v with_o what_o propriety_n one_o part_n of_o matter_n more_o than_o another_o may_v be_v call_v primum_fw-la durum_fw-la he_o shall_v have_v tell_v we_o what_o he_o mean_v by_o his_o prima_fw-la fluida_fw-la and_o how_o he_o prove_v that_o there_o be_v any_o such_o which_o since_o he_o have_v not_o do_v it_o will_v be_v at_o least_o as_o hard_o for_o a_o consider_a man_n to_o acquiesce_v in_o his_o question_n as_o to_o answer_v it_o for_o my_o part_n i_o know_v no_o fluid_a body_n upon_o who_o account_n as_o of_o a_o ingredient_n all_o other_o be_v fluid_a and_o i_o think_v it_o will_v be_v hard_a for_o mr._n hobbs_n to_o show_v that_o water_n quicksilver_n and_o purely-rectified_a chemical_a oil_n to_o name_n now_o no_o other_o liquor_n do_v consist_v of_o such_o fluida_fw-la prima_fw-la as_o he_o teach_v whereto_o they_o owe_v all_o their_o fluidity_n and_o it_o be_v plain_a by_o several_a experiment_n deliver_v in_o our_o history_n and_o even_o by_o the_o obvious_a change_n of_o water_n and_o ice_n into_o one_o another_o that_o it_o be_v the_o motion_n rest_n and_o the_o texture_n of_o the_o corpuscle_n which_o compose_v a_o body_n that_o make_v it_o firm_a or_o fluid_a as_o for_o what_o mr._n hobbs_n demand_v whether_o the_o small_a fluid_n imaginable_a can_v not_o as_o well_o have_v be_v create_v as_o the_o aether_n it_o prove_v nothing_o against_o i_o the_o question_v not_o be_v what_o may_v have_v be_v make_v but_o what_o be_v so_o and_o he_o shall_v have_v answer_v the_o argument_n i_o elsewhere_o allege_v to_o make_v it_o improbable_a that_o a_o fluid_a body_n be_v as_o he_o will_v persuade_v we_o in_o his_o book_n 4._o de_fw-fr corpore_fw-la always_o divisible_a into_o body_n equal_o fluid_a as_o quantity_n into_o quantity_n it_o be_v true_a he_o there_o tell_v we_o that_o though_o many_o other_o do_v not_o he_o understand_v by_o fluidity_n that_o which_o be_v make_v such_o by_o nature_n equal_o in_o every_o part_n of_o the_o fluid_a body_n in_o such_o manner_n as_o water_n seem_v fluid_a and_o to_o divide_v itself_o into_o part_n perpetual_o fluid_a but_o whether_o other_o will_v take_v this_o for_o a_o clear_a notion_n of_o fluidity_n i_o think_v may_v well_o be_v doubt_v and_o he_o shall_v not_o bare_o say_v but_o prove_v which_o i_o think_v he_o will_v find_v hard_a to_o do_v that_o the_o corpuscle_n of_o water_n divide_v themselves_o so_o as_o he_o teach_v since_o we_o see_v that_o not_o only_o they_o can_v penetrate_v glass_n but_o be_v unable_a to_o be_v drive_v in_o at_o the_o pore_n of_o more_o open_a body_n which_o other_o liquor_n easy_o pierce_v into_o and_o last_o as_o to_o mr._n hobbs_n question_n quod_fw-la si_fw-la fluidum_fw-la fiat_fw-la etc._n etc._n it_o be_v easy_a to_o foresee_v what_o according_a to_o my_o doctrine_n
etc._n here_o our_o man_n be_v at_o a_o stand_n how_o will_v you_o expedite_v this_o difficulty_n a._n i_o have_v do_v it_o already_o for_o the_o air_n be_v beat_v back_o by_o the_o retraction_n of_o the_o sucker_n and_o find_v no_o place_n in_o the_o world_n which_o we_o suppose_v to_o be_v full_a where_o it_o may_v dispose_v itself_o beside_o that_o which_o by_o drive_v out_o other_o body_n from_o their_o place_n it_o may_v make_v for_o itself_o be_v by_o perpetual_a pulsion_n at_o length_n force_v in_o the_o cylinder_n with_o so_o great_a swiftness_n between_o the_o concave_a surface_n of_o the_o cylinder_n and_o the_o convex_a surface_n of_o the_o sucker_n as_o may_v answer_v that_o store_n of_o power_n which_o you_o find_v necessary_a to_o the_o draw_v back_o of_o the_o sucker_n now_o the_o air_n with_o what_o swiftness_n it_o enter_v retain_v the_o same_o within_o and_o then_o distend_v every_o way_n the_o side_n of_o the_o brass_n cylinder_n which_o be_v of_o itself_o elastical_a therefore_o the_o air_n in_o the_o cylinder_n being_n vehement_o move_v endeavour_n or_o thrust_v against_o all_o part_n of_o the_o concave_a surface_n of_o the_o cylinder_n but_o in_o vain_a until_o the_o sucker_n be_v draw_v back_o but_o as_o soon_o as_o the_o sucker_n have_v slip_v the_o hand_n ceases_z to_o make_v its_o impulse_n upon_o the_o air_n that_o air_n which_o be_v before_o drive_v in_o by_o reason_n of_o its_o endeavour_n against_o every_o point_n of_o the_o internal_a superficies_n of_o the_o cylinder_n and_o of_o the_o elastical_a force_n of_o the_o air_n will_v insinuate_v itself_o between_o the_o same_o surface_n with_o the_o same_o swiftness_n as_o that_o by_o which_o it_o be_v impel_v that_o be_v with_o that_o velocity_n which_o answer_v the_o strength_n of_o the_o impulsion_n if_o therefore_o so_o great_a a_o power_n of_o weight_n be_v hang_v upon_o the_o sucker_n as_o may_v answer_v the_o power_n of_o the_o hand_n by_o which_o it_o be_v impulss_v the_o swiftness_n with_o which_o the_o same_o air_n go_v out_o of_o the_o cylinder_n find_v no_o place_n in_o the_o world_n which_o be_v full_a where_o to_o dispose_v itself_o will_v again_o impel_v the_o sucker_n to_o the_o top_n of_o the_o cylinder_n for_o the_o same_o reason_n that_o the_o sucker_n a_o little_a before_o make_v a_o impulse_n upon_o the_o air._n p._n 44._o in_o vas_fw-la etc._n etc._n b._n we_o pour_v water_n into_o a_o open_a vessel_n we_o place_v in_o the_o water_n a_o long_a straight_o slender_a tube_n and_o we_o observe_v that_o the_o water_n do_v ascend_v from_o the_o vessel_n underneath_o into_o the_o erect_a tube_n a._n no_o wonder_n for_o the_o small_a particle_n that_o be_v intersperse_v in_o the_o air_n near_o the_o water_n do_v by_o their_o motion_n beat_v upon_o the_o surface_n of_o the_o water_n so_o that_o the_o water_n must_v of_o necessity_n ascend_v into_o the_o pipe_n and_o that_o sensible_o into_o a_o pipe_n that_o be_v so_o exceed_o slender_a p._n 45._o siquis_fw-la etc._n etc._n if_o any_o one_o after_o the_o frequently-repeated_n impulse_n and_o retraction_n of_o the_o sucker_n endeavour_v to_o draw_v out_o the_o stopple_n of_o the_o upper_a orifice_n of_o the_o receiver_n he_o shall_v find_v it_o gravitates_fw-la very_o much_o as_o if_o a_o weight_n of_o many_o pound_n hang_v upon_o it_o whence_o come_v this_o a._n from_o a_o strong_a circular_a endeavour_n of_o the_o air_n within_o the_o receiver_n make_v by_o the_o violent_a ingress_n of_o the_o air_n between_o the_o convex_a surface_n of_o the_o sucker_n and_o the_o concave_n of_o the_o cylinder_n procure_v by_o the_o repeat_v impulse_n and_o revulsion_n of_o the_o sucker_n which_o you_o improper_o call_v the_o exsuction_n of_o the_o air._n for_o by_o reason_n of_o the_o fullness_n of_o nature_n the_o stopple_n can_v be_v draw_v out_o but_o the_o air_n that_o be_v in_o the_o receiver_n contiguous_a to_o the_o stopple_n must_v be_v draw_v out_o too_o which_o air_n if_o it_o be_v settle_v and_o at_o rest_n the_o stopple_n will_v easy_o be_v draw_v out_o but_o while_o that_o doesmost_o swift_o circulate_a it_o come_v out_o very_o hardly_o that_o be_v it_o seem_v to_o be_v very_o heavy_a b._n very_o likely_a for_o as_o soon_o as_o fresh_a air_n be_v by_o degree_n let_v into_o the_o receiver_n it_o likewise_o by_o degree_n lose_v this_o seem_a gravity_n p._n 47._o vidimus_fw-la etc._n etc._n we_o see_v also_o water_n be_v let_v down_o into_o the_o receiver_n after_o some_o return_n of_o the_o motion_n of_o the_o sucker_n to_o bubble_v so_o as_o if_o it_o have_v boil_v over_o a_o fire_n a._n this_o likewise_o happen_v as_o we_o speak_v by_o reason_n of_o the_o swiftness_n of_o the_o circulate_v air_n unless_o perhaps_o you_o find_v the_o water_n hot_a too_o while_o it_o bubble_n for_o if_o we_o be_v sure_a it_o be_v hot_a we_o must_v find_v out_o some_o other_o cause_n of_o the_o phaenomenon_n b._n we_o be_v certain_a it_o be_v not_o sensible_o hot_a a._n in_o what_o therefore_o can_v the_o great_a or_o lesser_a motion_n of_o the_o atmosphere_n promote_v such_o a_o motion_n as_o this_o b._n i_o suppose_v they_o do_v not_o attribute_v this_o motion_n to_o the_o atmosphere_n p._n 49._o a._n it_o be_v manifest_a from_o this_o experiment_n that_o the_o receiver_n be_v not_o make_v empty_a by_o this_o exsuction_n of_o air_n as_o you_o call_v it_o for_o the_o water_n can_v not_o be_v move_v but_o by_o some_o contiguous_a mover_n that_o be_v itself_o in_o motion_n therefore_o this_o phaenomenon_n seem_v to_o contain_v no_o weak_a demonstration_n of_o my_o hypothesis_n p._n 50._o beside_o tell_v i_o can_v you_o see_v the_o water_n bubble_v in_o that_o manner_n b._n what_o else_o a._n do_v not_o your_o associate_n grant_v that_o vision_n be_v make_v by_o a_o continue_a action_n from_o the_o object_n unto_o the_o eye_n do_v they_o not_o also_o think_v action_n to_o be_v motion_n and_o all_o motion_n to_o be_v of_o some_o body_n how_o therefore_o can_v the_o motion_n be_v derive_v from_o the_o object_n the_o water_n unto_o your_o eye_n through_o a_o vacuum_n that_o be_v somewhat_o that_o be_v not_o a_o body_n b._n our_o friend_n do_v not_o affirm_v the_o recipient_a to_o be_v so_o empty_a that_o no_o air_n at_o all_o be_v leave_v a._n no_o matter_n whether_o the_o receiver_n be_v whole_o or_o for_o the_o great_a part_n empty_a for_o which_o ever_o you_o suppose_v the_o derivation_n of_o the_o motion_n from_o the_o object_n to_o the_o eye_n will_v be_v intercept_v b._n it_o may_v be_v so_o i_o can_v tell_v what_o to_o answer_v p._n 51._o credin_n '_o tu_o etc._n etc._n do_v you_o think_v these_o animal_n be_v therefore_o so_o quick_o kill_v because_o they_o want_v air_n how_o then_o do_v they_o who_o make_v a_o trade_n of_o dive_v live_v under_o water_n of_o who_o there_o be_v some_o who_o be_v accustom_v from_o their_o childhood_n have_v want_v air_n a_o whole_a hour_n no._n thatmost_a vehement_a motion_n by_o which_o bladder_n shut_v therein_o be_v distend_v and_o break_v kill_v these_o animal_n shut_v up_o in_o the_o receiver_n ibid._n ego_fw-la contra_fw-la etc._n etc._n i_o on_o the_o contrary_n think_v that_o neither_o the_o air_n can_v be_v suck_v out_o nor_o that_o the_o animal_n will_v so_o soon_o die_v if_o it_o be_v suck_v out_o the_o action_n indeed_o to_o which_o this_o death_n be_v a_o consequent_a may_v seem_v either_o a_o certain_a suction_n and_o so_o that_o the_o animal_n be_v kill_v by_o the_o exsuction_n of_o the_o include_v air_n its_o respiration_n be_v take_v away_o or_o a_o compulsion_n of_o the_o air_n from_o all_o part_n towards_o the_o centre_n of_o the_o spherical_a glass_n in_o which_o the_o animal_n be_v enclose_v and_o so_o may_v be_v see_v to_o die_v stifle_v by_o the_o tenacity_n of_o the_o compress_v air_n as_o it_o be_v with_o water_n the_o air_n more_o tenacious_a than_o usual_a be_v draw_v into_o the_o inward_o of_o the_o lung_n and_o there_o between_o the_o pulmonary_a artery_n and_o vein_n stop_v the_o course_n of_o the_o blood_n p._n 53._o placet_fw-la etc._n etc._n your_o hypothesis_n please_v i_o better_o than_o that_o of_o the_o spring_n of_o the_o air_n for_o from_o its_o truth_n depend_v the_o truth_n of_o a_o vacuum_n or_o a_o plenum_fw-la but_o from_o the_o truth_n of_o that_o nothing_o follow_v on_o either_o part_n of_o the_o question_n the_o make_v of_o the_o air_n say_v he_o be_v like_o that_o of_o compress_a wool_n well_o wool_n be_v make_v of_o hair_n or_o thread_n right_a but_o of_o what_o figure_n if_o of_o a_o parallelopipedon_n there_o can_v be_v no_o compression_n of_o part_n if_o not_o of_o a_o parallelopipedon_n there_o will_v be_v betwixt_o the_o hair_n certain_a space_n leave_v which_o if_o they_o be_v empty_a they_o suppose_v
some_o place_n empty_a to_o prove_v that_o a_o vacuum_n be_v possible_a if_o full_a they_o say_v that_o be_v full_a which_o they_o suppose_v to_o be_v empty_a p._n 56._o fuere_fw-la etc._n etc._n there_o be_v some_o of_o they_o that_o say_v there_o remain_v in_o those_o coal_n though_o they_o seem_v extinguish_v some_o fiery_a particle_n which_o be_v blow_v up_o by_o the_o air_n upon_o its_o admission_n do_v re-kindle_a the_o rest_n of_o the_o mass_n ibid._n nae_n etc._n etc._n in_o good_a faith_n they_o seem_v not_o so_o much_o as_o to_o have_v consider_v what_o they_o shall_v speak_v as_o to_o have_v take_v it_o up_o at_o all_o adventure_n do_v you_o believe_v that_o in_o a_o kindle_a coal_n there_o be_v any_o part_n which_o be_v not_o a_o coal_n but_o fire_n or_o in_o a_o red-hot_a iron_n there_o be_v any_o part_n that_o be_v not_o iron_n but_o fire_n a_o great_a city_n may_v be_v set_v on_o fire_n by_o one_o spark_n now_o if_o the_o body_n of_o fire_n be_v different_a from_o the_o thing_n fire_v there_o can_v be_v no_o more_o part_n of_o fire_n in_o the_o whole_a town_n on_o fire_n than_o that_o one_o spark_n we_o see_v body_n of_o divers_a kind_n may_v be_v set_v on_o fire_n by_o the_o light_n of_o the_o sun_n as_o well_o by_o the_o refraction_n as_o the_o reflection_n that_o be_v make_v in_o burning-glass_n and_o yet_o i_o do_v not_o believe_v that_o there_o be_v any_o man_n think_v that_o particle_n of_o fire_n dart_v from_o the_o sun_n can_v pass_v through_o the_o substance_n of_o a_o crystal_n globe_n and_o in_o the_o air_n between_o the_o sun_n and_o the_o globe_n there_o be_v no_o fire_n p._n 58._o when_o be_v it_o that_o we_o may_v true_o say_v of_o a_o man_n that_o he_o be_v dead_a or_o which_o be_v the_o same_o have_v expire_v his_o soul_n for_o it_o have_v be_v know_v that_o some_o man_n who_o have_v be_v take_v for_o dead_a be_v bring_v out_o the_o next_o day_n revive_v a._n it_o be_v hard_o to_o determine_v the_o point_n of_o time_n in_o which_o the_o soul_n be_v separate_v from_o the_o body_n proceed_v therefore_o to_o other_o experiment_n p._n 59_o si_fw-mi acus_fw-la etc._n etc._n if_o a_o needle_n excite_v by_o a_o loadstone_n hang_v free_o within_o the_o receiver_n it_o will_v nevertheless_o follow_v the_o motion_n of_o the_o iron_n which_o be_v draw_v about_o without_o the_o receiver_n so_o object_n put_v within_o will_v be_v see_v by_o those_o that_o be_v without_o and_o sound_v make_v within_o will_v be_v hear_v without_o all_o these_o as_o well_o after_o as_o before_o the_o exsuction_n of_o the_o air_n except_o that_o the_o sound_n be_v somewhat_o more_o weak_o hear_v after_o than_o before_o b._n these_o be_v most_o manifest_a sign_n that_o the_o receiver_n be_v always_o full_a and_o that_o the_o air_n can_v thence_o be_v suck_v out_o that_o the_o sound_n thence_o be_v more_o weak_a to_o one_o hearing_n be_v a_o sign_n of_o the_o consistence_n of_o the_o air_n for_o the_o consistence_n of_o the_o air_n be_v diametrical_o opposite_a from_o its_o motion_n p._n 61._o quia_fw-la nihil_fw-la etc._n etc._n because_o there_o be_v nothing_o there_o that_o the_o weight_n of_o the_o atmosphere_n shall_v do_v no_o more_o strong_a or_o evident_a argument_n can_v be_v make_v against_o a_o vacuum_n than_o this_o experiment_n for_o if_o of_o two_o coherent_a marble_n either_o of_o they_o shall_v be_v thrust_v forward_o that_o way_n that_o their_o surface_n lie_v contiguous_a they_o will_v easy_o be_v sever_v the_o neighbour_a air_n successive_o flow_v into_o the_o desert_a place_n but_o so_o to_o pull_v they_o asunder_o that_o at_o one_o time_n they_o shall_v lose_v their_o whole_a contact_n be_v impossible_a the_o world_n be_v full_a for_o then_o either_o motion_n must_v be_v make_v from_o one_o term_n to_o another_o in_o a_o instant_n or_o two_o body_n at_o the_o same_o time_n must_v be_v in_o the_o same_o place_n to_o say_v either_o of_o which_o be_v absurd_a p._n 62._o confitentur_fw-la etc._n etc._n they_o themselves_o and_o all_o other_o confess_v that_o all_o ponderation_n be_v a_o endeavour_n every_o way_n by_o right_a line_n unto_o the_o centre_n of_o the_o earth_n and_o so_o that_o it_o be_v make_v not_o by_o the_o figure_n of_o a_o cylinder_n or_o column_n but_o by_o a_o pyramid_n who_o top_n be_v the_o centre_n of_o the_o earth_n and_o who_o basis_n be_v part_n of_o the_o surface_n of_o the_o atmosphere_n ibid._n conatus_fw-la etc._n etc._n therefore_o the_o endeavour_n of_o all_o the_o point_v that_o ponderate_a will_v be_v propagate_v to_o the_o surface_n of_o the_o upper_a marble_n before_o it_o can_v be_v propagate_v further_o suppose_v to_o the_o earth_n p._n 64._o have_v etc._n etc._n these_o scale_n he_o put_v one_o upon_o another_o and_o draw_v out_o the_o air_n and_o then_o be_v they_o keep_v so_o compress_v and_o unite_v by_o the_o gravity_n of_o the_o external_a air_n that_o six_o strong_a man_n can_v pull_v they_o asunder_o but_o if_o at_o length_n by_o the_o use_n of_o utmost_a endeavour_n they_o be_v pluck_v in_o sunder_o they_o make_v a_o noise_n equal_a to_o the_o report_n of_o a_o musket_n but_o as_o soon_o as_o ever_o by_o the_o stop-cock_n open_v there_o be_v the_o least_o entrance_n give_v to_o the_o air_n they_o be_v sever_v of_o their_o own_o accord_n p._n 65._o sed_fw-la vis_fw-la etc._n etc._n but_o can_v the_o spring_n which_o they_o say_v be_v in_o the_o air_n confer_v nothing_o to_o the_o hold_v up_o the_o marble_n nothing_o at_o all_o for_o there_o be_v no_o endeavour_n of_o the_o air_n to_o the_o centre_n of_o the_o earth_n more_o than_o to_o any_o other_o point_n in_o the_o universe_n for_o see_v that_o heavy_a thing_n tend_v from_o the_o circumference_n of_o the_o atmosphere_n unto_o the_o centre_n of_o the_o earth_n and_o thence_o again_o to_o the_o circumference_n of_o the_o atmosphere_n by_o the_o same_o reflect_a line_n the_o endeavour_n upward_o will_v be_v equal_a to_o the_o endeavour_n downward_o and_o so_o destroy_v one_o another_o they_o will_v endeavour_v neither_o way_n p._n 66._o non_fw-la potest_fw-la ergo_fw-la pars_fw-la bc_n etc._n etc._n therefore_o the_o part_n bc_n that_o be_v a_o part_n of_o the_o atmosphere_n place_v any_o where_o within_o the_o whole_a can_v by_o reason_n of_o its_o greatness_n descend_v although_o it_o be_v heavy_a and_o therefore_o it_o can_v press_v or_o gravitate_fw-la ibid._n si_fw-mi possibile_fw-la etc._n etc._n if_o i_o shall_v deny_v it_o possible_a that_o by_o the_o art_n of_o man_n two_o furface_n of_o two_o body_n can_v be_v make_v so_o accurate_o fit_a that_o they_o shall_v touch_v in_o all_o point_n so_o that_o there_o can_v no_o creable_a corpuscle_n pass_v between_o they_o i_o do_v not_o see_v how_o they_o can_v defend_v their_o own_o hypothesis_n or_o disprove_v our_o negative_a assertion_n ibid._n utraque_fw-la etc._n etc._n both_o these_o fancy_n as_o well_o that_o of_o the_o weight_n as_o of_o the_o spring_n or_o antitupy_v of_o the_o air_n be_v dream_n but_o if_o it_o be_v grant_v that_o there_o be_v a_o kind_n of_o recoil_n in_o those_o small_a hair_n or_o slender_a corpuscle_n of_o which_o the_o air_n consist_v one_o may_v inquire_v whence_o it_o be_v that_o those_o crooked_a body_n settle_a and_o at_o quiet_a in_o that_o posture_n come_v to_o be_v move_v into_o a_o straightness_n they_o ought_v if_o they_o will_v be_v esteem_v natural_a philosopher_n to_o assign_v some_o possible_a cause_n of_o this_o p._n 67._o cur_n non_fw-la etc._n etc._n why_o can_v the_o water_n which_o when_o it_o be_v inject_v do_v compress_v the_o particle_n of_o air_n be_v again_o cast_v out_o by_o the_o same_o particle_n explicate_v themselves_o a._n because_o when_o explicate_v they_o require_v no_o great_a place_n than_o when_o compress_v as_o in_o a_o vessel_n full_a of_o water_n wherein_o be_v many_o eel_n the_o same_o proportion_n of_o place_n receive_v they_o whether_o they_o be_v fold_v round_o or_o at_o length_n therefore_o they_o can_v drive_v up_o the_o water_n by_o their_o spring_n which_o be_v nothing_o else_o but_o the_o motion_n of_o body_n explicate_v themselves_o b._n the_o comparison_n of_o air_n to_o eel_n in_o water_n i_o suppose_v will_v be_v well_o receive_v by_o our_o academian_o p._n 68_o vides_fw-la etc._n etc._n you_o see_v how_o foolish_a a_o thing_n it_o be_v to_o bring_v for_o the_o explication_n of_o such_o effect_n metaphorical_a word_n as_o the_o shun_v of_o a_o vacuum_n the_o ahhorrence_n of_o nature_n etc._n etc._n which_o heretofore_o the_o school_n use_v to_o defend_v their_o reputation_n ibid._n in_o the_o gardener_n watering-pot_n therefore_o be_v the_o water_n suspend_v because_o that_o which_o issue_v out_o at_o so_o small_a a_o hole_n be_v so_o little_a that_o it_o can_v diffuse_v itself_o to_o