same_o nature_n with_o that_o which_o be_v some_o year_n ago_o say_v to_o be_v make_v by_o that_o eminent_a geometrician_n mounseur_fw-fr roberval_n with_o a_o carp_n bladder_n empty_v and_o convey_v into_o a_o tube_n wherein_o the_o experiment_n de_fw-fr vacuo_fw-la be_v afterward_o try_v which_o ingenious_a experiment_n of_o he_o just_o deserve_v the_o thanks_o of_o those_o that_o have_v be_v or_o shall_v be_v solicitous_a to_o discover_v the_o nature_n of_o the_o air._n but_o to_o return_v to_o our_o experiment_n we_o may_v take_v notice_n of_o this_o circumstance_n in_o it_o that_o after_o the_o receiver_n have_v be_v in_o some_o measure_n empty_v the_o bladder_n do_v at_o each_o exsuction_n swell_v much_o more_o conspicuous_o than_o it_o do_v at_o any_o of_o the_o first_o exsuction_n insomuch_o that_o towards_o the_o end_n of_o the_o pump_v not_o only_o a_o great_a fold_n or_o cavity_n in_o the_o surface_n of_o the_o bladder_n may_v be_v make_v even_o by_o the_o stretch_n of_o the_o inward_a self-expanding_a air_n but_o we_o have_v sometime_o see_v upon_o the_o turn_n of_o the_o key_n to_o let_v the_o ambient_fw-la air_n pass_v out_o of_o the_o receiver_n into_o the_o cylinder_n we_o have_v see_v i_o say_v the_o air_n in_o the_o bladder_n sudden_o expand_v itself_o so_o much_o and_o so_o brisk_o that_o it_o manifest_o lift_v up_o some_o light_a body_n that_o lean_v upon_o it_o and_o seem_v to_o lift_v up_o the_o bladder_n itself_o now_o because_o it_o have_v by_o very_o learned_a man_n be_v doubt_v whether_o the_o swell_a of_o the_o bladder_n may_v not_o have_v proceed_v not_o from_o the_o dilatation_n of_o the_o include_v air_n but_o from_o the_o texture_n of_o the_o fibre_n which_o be_v wont_a to_o keep_v the_o bladder_n extend_v when_o the_o animal_n to_o who_o it_o belong_v be_v alive_a may_v be_v suppose_v in_o our_o experiment_n to_o have_v return_v like_o so_o many_o spring_n to_o their_o wont_a extent_n upon_o the_o removal_n of_o the_o ambient_fw-la air_n that_o compress_v and_o bend_v they_o because_o this_o i_o say_v have_v be_v doubt_v we_o think_v fit_a to_o make_v this_o further_a trial_n we_o let_v down_o into_o the_o receiver_n with_o the_o forementioned_a bladder_n two_o other_o much_o small_a and_o of_o the_o same_o kind_n of_o animal_n the_o one_o of_o these_o be_v not_o tie_v up_o at_o the_o neck_n that_o there_o may_v be_v liberty_n leave_v to_o the_o air_n that_o be_v not_o squeeze_v out_o which_o may_v amount_v to_o about_o a_o five_o part_n of_o what_o the_o bladder_n hold_v before_o to_o pass_v out_o into_o the_o receiver_n the_o other_o have_v the_o side_n of_o it_o stretch_v out_o and_o press_v together_o almost_o into_o the_o form_n of_o a_o cup_n that_o they_o may_v intercept_v the_o less_o air_n betwixt_o they_o and_o then_o be_v strong_o tie_v up_o at_o the_o neck_n this_o do_v and_o the_o air_n be_v in_o some_o measure_n suck_v out_o of_o the_o pneumatical_a glass_n if_o i_o may_v so_o call_v it_o the_o bladder_n mention_v at_o the_o begin_n of_o our_o experiment_n appear_v extend_v every_o way_n to_o its_o full_a dimension_n whereas_o neither_o of_o the_o two_o other_o do_v remarkable_o swell_v and_o that_o who_o neck_n be_v not_o tie_v seem_v very_o little_a if_o at_o all_o less_o wrinkle_a than_o when_o it_o be_v put_v in_o we_o make_v likewise_o a_o strong_a ligature_n about_o the_o middle_n of_o a_o long_a bladder_n partly_o empty_v and_o upon_o the_o draw_v the_o air_n out_o of_o the_o receiver_n can_v observe_v no_o such_o swell_a betwixt_o the_o ligature_n and_o the_o neck_n of_o the_o bladder_n which_o have_v be_v purposely_o leave_v open_a as_o betwixt_o the_o same_o ligature_n and_o the_o bottom_n of_o the_o bladder_n whence_o the_o include_v air_n can_v no_o way_n get_v out_o but_o a_o far_o and_o sufficient_a manifestation_n whence_o the_o intumescence_n of_o the_o bladder_n proceed_v may_v be_v deduce_v from_o the_o follow_a experiment_n experiment_n v._n to_o try_v then_o at_o once_o both_o what_o it_o be_v that_o expanded_a the_o bladder_n and_o what_o a_o powerful_a spring_n there_o be_v even_o in_o the_o air_n we_o be_v wont_n to_o think_v uncompress_v we_o cause_v a_o bladder_n dry_a well_o tie_v and_o blow_v moderate_o full_a to_o be_v hang_v in_o the_o receiver_n by_o one_o end_n of_o a_o string_n who_o other_o end_n be_v fasten_v to_o the_o inside_n of_o the_o cover_n and_o upon_o draw_v out_o the_o ambient_fw-la air_n that_o press_v on_o the_o bladder_n the_o internal_a air_n not_o find_v the_o wont_a resistance_n first_o swell_v and_o distend_v the_o bladder_n and_o then_o break_v it_o with_o so_o wide_a and_o crooked_a a_o rent_n as_o if_o it_o have_v be_v forcible_o tear_v asunder_o with_o hand_n after_o which_o a_o second_o bladder_n be_v convey_v in_o the_o experiment_n be_v repeat_v with_o like_a success_n and_o i_o suppose_v it_o will_v not_o be_v imagine_v that_o in_o this_o case_n the_o bladder_n be_v break_v by_o its_o own_o fibre_n rather_o than_o by_o the_o imprison_v air._n and_o of_o this_o experiment_n these_o two_o phaenomena_n may_v be_v take_v notice_n of_o the_o one_o that_o the_o bladder_n at_o its_o break_n give_v a_o great_a report_n almost_o like_o a_o cracker_n and_o the_o other_o that_o the_o air_n contain_v in_o the_o bladder_n have_v the_o power_n to_o break_v it_o with_o the_o mention_a impetuosity_n long_o before_o the_o ambient_fw-la air_n be_v all_o or_o near_o all_o draw_v out_o of_o the_o receiver_n but_o to_o verify_v what_o we_o say_v in_o another_o discourse_n where_o we_o show_v that_o even_o true_a experiment_n may_v by_o reason_n of_o the_o easy_a mistake_n of_o some_o unheeded_a circumstance_n be_v unsuccessful_o try_v we_o will_v advertise_v on_o this_o occasion_n that_o we_o do_v oftentimes_o in_o vain_a try_v the_o break_n of_o bladder_n after_o the_o manner_n above_o mention_v of_o which_o the_o cause_n appear_v to_o be_v this_o that_o the_o bladder_n we_o can_v not_o break_v have_v be_v bring_v we_o ready_a blow_v from_o those_o that_o sell_v they_o be_v grow_v dry_a before_o they_o come_v to_o our_o hand_n whence_o it_o come_v to_o pass_v that_o if_o we_o afterward_o tie_v they_o very_o hard_o they_o be_v apt_a to_o fret_v and_o so_o become_v unserviceable_a and_o if_o we_o tie_v they_o but_o moderate_o hard_a their_o stifness_n keep_v they_o from_o be_v close_v so_o exact_o but_o that_o when_o the_o include_v air_n have_v in_o the_o exhaust_a receiver_n distend_v they_o as_o much_o as_o easy_o it_o can_v it_o will_v in_o part_n get_v out_o between_o the_o little_a wrinkle_n of_o the_o sphincter_n of_o the_o neck_n whence_o also_o it_o usual_o happen_v that_o upon_o the_o let_n in_o the_o air_n from_o without_o the_o bladder_n appear_v more_o flaccid_a and_o empty_a than_o before_o they_o be_v put_v in_o whereas_o when_o the_o bladder_n be_v bring_v we_o moist_a from_o the_o butcher_n we_o can_v without_o injure_v they_o tie_v their_o neck_n so_o close_o that_o none_o of_o the_o air_n once_o blow_v in_o can_v get_v out_o of_o they_o but_o by_o violent_o break_v they_o it_o will_v not_o be_v amiss_o on_o this_o occasion_n to_o point_n at_o something_o which_o may_v deserve_v a_o more_o deliberate_a speculation_n than_o we_o can_v now_o afford_v it_o namely_o that_o the_o elastical_a power_n of_o the_o same_o quantity_n of_o air_n may_v be_v as_o well_o increase_v by_o the_o agitation_n of_o the_o aërial_a particle_n whether_o only_o move_v they_o more_o swift_o and_o scatter_v they_o or_o also_o extend_v or_o stretch_v they_o out_o i_o determine_v not_o within_o a_o every_o way_n enclose_v and_o yet_o yield_a body_n as_o display_v by_o the_o withdraw_n of_o the_o air_n that_o press_v it_o without_o for_o we_o find_v that_o a_o bladder_n but_o moderate_o fill_v with_o air_n and_o strong_o tie_v be_v a_o while_n hold_v near_o the_o fire_n not_o only_o grow_v exceed_v turgid_a and_o hard_a but_o afterward_o be_v bring_v near_o to_o the_o fire_n sudden_o break_v with_o so_o loud_a and_o vehement_a a_o noise_n as_o stony_v those_o that_o be_v by_o and_o make_v we_o for_o a_o while_n after_o almost_o deaf_a experiment_n vi._n have_v thus_o see_v that_o the_o air_n have_v a_o elastical_a power_n we_o be_v next_o desirous_a to_o know_v in_o some_o measure_n how_o far_o a_o parcel_n of_o air_n may_v by_o this_o its_o own_o spring_n be_v dilate_v and_o though_o we_o be_v not_o provide_v of_o instrument_n fit_a to_o measure_v the_o dilatation_n of_o the_o air_n any_o thing_n accurate_o yet_o because_o a_o imperfect_a measure_n of_o it_o be_v more_o desirable_a than_o none_o at_o all_o we_o devise_v the_o follow_a method_n as_o very_o easy_o practicable_a we_o take_v a_o limber_a lamb_n bladder_n which_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
that_o have_v by_o let_v in_o the_o air_n force_v up_o the_o water_n into_o the_o tube_n we_o can_v not_o perceive_v that_o it_o ascend_v near_o the_o top_n though_o we_o permit_v the_o engine_n to_o remain_v unemployed_a for_o two_o or_o three_o night_n together_o and_o watch_v whether_o the_o water_n will_v swell_v up_o and_o fill_v the_o tube_n and_o on_o this_o occasion_n i_o remember_v that_o have_v try_v such_o a_o experiment_n as_o this_o with_o quicksilver_n instead_o of_o water_n in_o a_o tube_n of_o about_o a_o foot_n and_o a_o half_a long_o wherein_o it_o may_v seem_v more_o hopeful_a to_o escape_v bubble_n yet_o upon_o the_o draw_v down_o the_o quicksilver_n as_o low_a as_o we_o can_v and_o let_v in_o the_o external_a air_n upon_o it_o we_o find_v that_o some_o lurk_a particle_n of_o air_n be_v get_v up_o to_o the_o top_n of_o the_o tube_n and_o hinder_v the_o quicksilver_n from_o be_v force_v up_o again_o so_o high_a and_o though_o the_o quicksilver_n be_v by_o this_o 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that_o differ_v enough_o from_o the_o other_o end_n to_o deserve_v another_o name_n and_o i_o that_o but_o relate_v a_o phaenomenon_n do_v not_o perhaps_o express_v myself_o much_o less_o wary_o if_o not_o more_o so_o than_o mr._n hobbs_n himself_o for_o whereas_o my_o word_n be_v these_o we_o present_o take_v out_o the_o coal_n in_o which_o it_o seem_v there_o have_v remain_v some_o little_a parcel_n of_o fire_n rather_o cover_v than_o total_o 79._o quench_v for_o in_o the_o open_a air_n the_o coal_n begin_v to_o be_v rekindle_v in_o several_a place_n mr._n hobbs_n even_o in_o his_o element_n of_o philosophy_n speak_v thus_o upon_o a_o somewhat-like_a occasion_n if_o a_o grate_n fill_v with_o coal_n thorough_o kindle_v and_o burn_v never_o so_o bright_o be_v let_v down_o as_o soon_o as_o ever_o it_o be_v below_o 14._o c._n the_o fire_n will_v begin_v to_o grow_v pale_a and_o short_o after_o lose_v its_o light_n be_v extinguish_v no_o otherwise_o than_o if_o it_o be_v quench_v in_o 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quo_fw-la anima_fw-la à _fw-la corpore_fw-la separatur_fw-la difficile_fw-la est_fw-la statuere_fw-la pergo_fw-la igitur_fw-la ad_fw-la experimenta_fw-la alia_fw-la i_o confess_v i_o see_v not_o why_o that_o needless_a question_n may_v not_o have_v be_v well_o spare_v if_o he_o design_v to_o give_v it_o no_o better_a answer_n chap._n vi_o wherein_o other_o passage_n of_o mr._n hobbs_n dialogue_n that_o concern_v the_o author_n be_v examine_v what_o our_o author_n have_v in_o the_o 19_o page_n concern_v a_o bladder_n have_v be_v already_o examine_v wherefore_o i_o proceed_v to_o the_o next_o passage_n in_o the_o same_o page_n which_o be_v this_o b._n simo_n acus_fw-la magnete_fw-la excitus_fw-la libere_fw-la pendeat_fw-la intra_fw-la recipiens_fw-la sequetur_fw-la tamen_fw-la ille_fw-la motum_fw-la ferri_fw-la quod_fw-la circumducitur_fw-la extra_fw-la recipiens_fw-la item_n object_n a_o intus_fw-la posita_fw-la ab_fw-la iis_fw-la qui_fw-la extra_fw-la sunt_fw-la videbuntur_fw-la &_o 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will_v continue_v in_o such_o a_o quantity_n of_o air_n but_o we_o find_v upon_o two_o several_a trial_n that_o from_o the_o begin_n of_o pump_v the_o flame_n go_v out_o in_o about_o a_o minute_n of_o a_o hour_n it_o appear_v indeed_o to_o we_o that_o the_o swing_a of_o the_o wire_n to_o and_o fro_o in_o the_o engine_n shake_v by_o pump_v hasten_v the_o vanish_v of_o the_o flame_n which_o seem_v by_o that_o motion_n to_o be_v cast_v sometime_o on_o one_o side_n of_o the_o week_n and_o sometime_o on_o the_o other_o but_o though_o once_o we_o purposely_o refrain_v pump_v after_o a_o very_a few_o exsuction_n of_o the_o air_n that_o the_o flame_n may_v not_o be_v agitate_a yet_o it_o last_v not_o much_o long_a than_o the_o newly-mentioned_a time_n and_o last_o close_v up_o the_o same_o taper_n light_v again_o to_o discover_v how_o long_o it_o will_v last_v without_o draw_v out_o of_o the_o air_n we_o find_v that_o it_o burn_v for_o a_o while_n vivid_o enough_o but_o afterward_o begin_v 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and_o have_v fill_v it_o to_o the_o height_n of_o about_o five_o inch_n with_o thorough_o kindle_a wood-coal_n we_o let_v it_o down_o into_o the_o glass_n and_o speedy_o close_v it_o we_o cause_v the_o pumper_n to_o ply_v his_o work_n and_o observe_v that_o upon_o the_o very_a first_o exsuction_n of_o the_o air_n though_o perhaps_o not_o because_o of_o that_o only_a the_o fire_n in_o the_o coal_n begin_v to_o grow_v very_o dim_a and_o though_o the_o agitation_n of_o the_o vessel_n do_v make_v they_o swing_v up_o and_o down_o which_o in_o the_o sree_a air_n will_v have_v retard_v the_o extinction_n of_o the_o fire_n yet_o when_o we_o can_v no_o long_o discern_v any_o redness_n at_o all_o in_o any_o of_o they_o cast_v our_o eye_n upon_o a_o minute_n watch_v we_o keep_v by_o we_o on_o this_o occasion_n we_o find_v that_o from_o the_o begin_n of_o the_o pump_v which_o may_v be_v about_o two_o minute_n after_o the_o coal_n have_v be_v put_v in_o glow_a to_o the_o total_a dis-appearing_a 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a_o middle_n size_v char-coal_n and_o have_v make_v it_o red-hot_a throughout_o we_o cause_v it_o in_o the_o late_o mention_v wier_n to_o be_v speedy_o convey_v and_o shut_v up_o into_o the_o receiver_n be_v desirous_a to_o try_v what_o will_v become_v of_o a_o glow_a body_n by_o reason_n of_o its_o texture_n more_o vehement_o hot_a than_o a_o burn_a coal_n of_o the_o same_o bigness_n and_o yet_o unlike_a to_o send_v forth_o such_o copious_a and_o stifle_a fume_n but_o we_o can_v not_o observe_v any_o manifest_a change_n upon_o the_o exsuction_n of_o the_o air._n the_o iron_n begin_v indeed_o to_o lose_v its_o fiery_a redness_n at_o the_o top_n but_o that_o seem_v to_o be_v because_o it_o be_v at_o the_o upper_a end_n somewhat_o more_o slender_a than_o at_o the_o low_a the_o redness_n though_o it_o be_v in_o the_o day_n time_n continue_v visible_a about_o four_o minute_n and_o then_o before_o it_o do_v quite_o disappear_v we_o turn_v the_o key_n of_o the_o stop-cock_n but_o can_v not_o discern_v any_o change_n of_o the_o iron_n upon_o the_o rush_n in_o of_o the_o air._n yet_o some_o little_a remainder_n of_o wax_n that_o stick_v to_o the_o wire_n and_o be_v turn_v into_o fume_n by_o the_o heat_n of_o the_o neighbour_a iron_n seem_v to_o afford_v a_o more_o plentiful_a or_o at_o least_o a_o much_o more_o expanded_a smoke_n when_o the_o air_n be_v suck_v out_o than_o afterward_o though_o allowance_n be_v make_v for_o the_o decrease_a heat_n of_o the_o iron_n and_o last_o notwithstanding_o a_o considerable_a exsuction_n of_o the_o ambient_fw-la air_n though_o not_o by_o far_o so_o great_a a_o one_o as_o may_v have_v be_v make_v by_o the_o engine_n and_o notwithstanding_o the_o inconsiderable_a dissipation_n of_o the_o part_n of_o the_o iron_n the_o surround_v side_n of_o the_o receiver_n be_v sensible_o and_o almost_o offensive_o heat_v by_o it_o insomuch_o that_o a_o pretty_a while_n after_o the_o iron_n be_v take_v out_o the_o side_n of_o the_o glass_n manifest_o retain_v a_o warmth_n which_o will_v not_o be_v unfit_a to_o be_v consider_v by_o a_o person_n at_o more_o leisure_n than_o i_o be_o now_o experiment_n xii_o be_v willing_a to_o try_v after_o this_o something_o that_o will_v not_o cherish_v much_o fire_n at_o once_o and_o will_v keep_v fire_n much_o long_o than_o a_o coal_n we_o take_v a_o piece_n of_o match_n such_o as_o soldier_n use_v of_o the_o thickness_n of_o a_o man_n little_a finger_n or_o somewhat_o thick_a and_o this_o be_v well_o light_v at_o one_o end_n be_v by_o a_o string_n suspend_v with_o that_o end_n downward_o in_o the_o cavity_n of_o the_o receiver_n which_o be_v immediate_o close_v and_o yet_o by_o that_o time_n it_o can_v well_o be_v so_o the_o copious_a fume_n of_o the_o match_n have_v near_o fill_v and_o darken_v the_o receiver_n wherefore_o lest_o the_o vessel_n shall_v be_v endanger_v the_o pump_n be_v nimble_o ply_v and_o a_o great_a deal_n of_o air_n and_o smoke_n mix_v together_o be_v draw_v out_o whereby_o the_o receiver_n grow_v more_o clear_a we_o can_v discern_v the_o fire_n in_o the_o match_n to_o burn_v more_o and_o more_o languid_o and_o notwithstanding_o that_o by_o the_o diligence_n use_v in_o pump_v it_o seem_v to_o have_v room_n enough_o allow_v it_o to_o throw_v out_o fume_n yet_o after_o no_o long_a time_n it_o cease_v from_o be_v discernible_a either_o by_o its_o light_n or_o its_o smoke_n and_o though_o by_o that_o we_o be_v invite_v to_o suppose_v it_o quite_o extinguish_v yet_o we_o continue_v pump_v awhile_o in_o prosecution_n of_o another_o experiment_n we_o be_v try_v at_o the_o same_o time_n and_o this_o we_o do_v the_o more_o willing_o because_o of_o a_o
a_o place_n where_o the_o remain_a air_n be_v so_o much_o rarefy_v but_o can_v not_o perceive_v but_o that_o they_o move_v some_o of_o they_o upward_o as_o well_o as_o some_o of_o they_o downward_o and_o some_o of_o they_o sideways_o as_o they_o be_v wont_n to_o do_v when_o upon_o such_o collision_n they_o fly_v out_o in_o the_o open_a air._n we_o likewise_o cause_v a_o piece_n of_o steel_n to_o be_v make_v of_o the_o form_n and_o bigness_n of_o the_o flint_n in_o who_o place_n we_o put_v it_o and_o then_o the_o pistol_n be_v cock_v and_o convey_v into_o the_o receiver_n the_o tricker_n be_v pull_v after_o the_o air_n be_v draw_v out_o and_o though_o the_o place_n be_v purposely_o somewhat_o darken_v yet_o there_o appear_v not_o upon_o the_o strike_n of_o the_o two_o steel_n against_o each_o other_o the_o least_o spark_n of_o fire_n nor_o do_v we_o expect_v any_o have_v before_o in_o vain_a attempt_v to_o strike_v fire_n this_o way_n in_o the_o open_a air_n though_o we_o think_v fit_a to_o make_v the_o experiment_n to_o undeceive_v those_o who_o fancy_n in_o rarefy_a air_n i_o know_v not_o what_o strange_a disposition_n to_o take_v fire_n upon_o a_o much_o slight_a occasion_n than_o this_o experiment_n afford_v we_o have_v indeed_o find_v that_o by_o the_o dextrous_a collision_n of_o two_o harden_v piece_n of_o steel_n store_n of_o spark_n may_v be_v strike_v out_o but_o that_o be_v do_v with_o such_o vehement_a percussion_n of_o the_o edge_n of_o the_o two_o steel_n as_o can_v not_o well_o be_v compass_v in_o our_o receiver_n but_o the_o chief_a thing_n we_o design_v to_o do_v with_o our_o pistol_n be_v to_o observe_v whether_o gunpowder_n will_v take_v fire_n in_o our_o empty_v and_o close_o stop_v glass_n whether_o the_o expansion_n of_o the_o flame_n will_v be_v considerable_o vary_v by_o the_o absence_n of_o so_o much_o of_o the_o ambient_fw-la air_n as_o be_v draw_v out_o of_o the_o receiver_n and_o whether_o the_o flame_n will_v diffuse_v itself_o upward_o as_o it_o be_v wont_a notwithstanding_o it_o be_v not_o have_v about_o it_o the_o usual_a proportion_n of_o air_n to_o force_v it_o up_o and_o though_o most_o of_o our_o attempt_n to_o fire_v the_o gunpowder_n in_o the_o pan_n of_o the_o pistol_n succeed_v not_o because_o we_o be_v fain_o to_o let_v it_o hang_v almost_o perpendicular_a in_o the_o receiver_n whereby_o the_o powder_n be_v shake_v down_o before_o the_o spark_n can_v reach_v it_o yet_o once_o the_o experiment_n succeed_v and_o the_o kindle_a powder_n seem_v to_o make_v a_o more_o expanded_a flame_n than_o it_o will_v have_v do_v in_o the_o open_a air_n but_o mount_v upward_o according_a to_o its_o wont_a whether_o by_o reason_n of_o that_o little_a portion_n of_o air_n which_o in_o spite_n of_o our_o pump_v remain_v in_o the_o receiver_n or_o for_o any_o other_o cause_n we_o have_v not_o now_o the_o leisure_n to_o consider_v but_o we_o must_v not_o forget_v that_o upon_o the_o extinction_n of_o the_o flame_n the_o receiver_n appear_v darken_v with_o smoke_n which_o seem_v to_o move_v free_o up_o and_o down_o and_o upon_o the_o let_n in_o the_o air_n at_o the_o stop-cock_n begin_v to_o circulate_v much_o â—aster_n than_o before_o we_o will_v have_v make_v more_o observation_n concern_v this_o flame_n but_o that_o of_o two_o or_o three_o attempt_n we_o afterward_o make_v to_o repeat_v the_o kindle_v of_o the_o powder_n not_o any_o one_o succeed_v and_o we_o have_v not_o the_o leisure_n to_o dwell_v long_o upon_o one_o kind_n of_o trial_n experiment_n xv._n to_o these_o experiment_n concern_v fire_n we_o add_v another_o which_o though_o it_o succeed_v not_o may_v perhaps_o without_o impertinency_n be_v record_v partly_o because_o that_o as_o we_o have_v in_o another_o treatise_n ample_o declare_v it_o be_v useful_a to_o recite_v what_o experiment_n miscarry_v as_o well_o as_o succeed_v and_o partly_o also_o because_o it_o be_v very_o possible_a that_o what_o we_o endeavour_v in_o vain_a may_v be_v perform_v by_o your_o lordship_n or_o some_o other_o vertuoso_fw-la that_o shall_v have_v stancher_n tessel_n than_o we_o have_v and_o more_o sunny_a day_n than_o the_o present_a winter_n allow_v we_o we_o convey_v then_o into_o one_o of_o our_o small_a receiver_n a_o piece_n of_o matter_n combustible_a dry_a and_o black_a experience_n declare_v thing_n of_o that_o colour_n to_o be_v most_o easy_o kindle_v and_o careful_o close_v the_o vessel_n we_o bring_v it_o to_o a_o window_n at_o which_o the_o sun_n not_o very_o far_o from_o the_o meridian_n shine_v in_o very_o free_o then_o draw_v out_o the_o air_n with_o speed_n we_o unite_v the_o sun_n beam_n with_o a_o burning-glass_n upon_o the_o combustible_a matter_n which_o begin_v immediate_o to_o send_v forth_o a_o smoke_n that_o quick_o darken_v the_o receiver_n but_o notwithstanding_o all_o our_o care_n and_o diligence_n the_o external_a air_n get_v in_o so_o fast_o that_o after_o divers_a trial_n we_o be_v fain_o to_o leave_v off_o 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to_o make_v it_o sensible_o smoke_n yet_o we_o hope_v that_o the_o see_v whether_o body_n other_o than_o gunpowder_n may_v be_v kindle_v and_o what_o will_v happen_v to_o they_o when_o set_v on_o fire_n in_o a_o place_n in_o great_a measure_n devoid_a of_o air_n may_v prove_v so_o lucilerous_a a_o experiment_n that_o when_o the_o season_n be_v more_o favourable_a we_o shall_v god_n permit_v make_v far_a trial_n of_o it_o and_o acquaint_v your_o lordship_n with_o the_o event_n if_o it_o prove_v prosperous_a in_o the_o mean_a time_n we_o shall_v pass_v on_o to_o other_o experiment_n as_o soon_o as_o we_o have_v advertise_v your_o lordship_n that_o we_o have_v forbear_v to_o make_v such_o reflection_n upon_o the_o several_a experiment_n we_o have_v set_v down_o concern_v fire_n as_o the_o matter_n will_v have_v easy_o afford_v and_o your_o lordship_n may_v perhaps_o have_v expect_v but_o i_o make_v the_o less_o scruple_n to_o forbear_v the_o annex_v of_o speculation_n to_o these_o 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spiritus_fw-la tum_fw-la aquavitae_fw-la tum_fw-la morborum_fw-la aegrotis_fw-la causa_fw-la est_fw-la tantáque_fw-la corporibus_fw-la omnibus_fw-la spiritûs_fw-la inest_fw-la necessitas_fw-la ut_fw-la fiquidem_fw-la aliis_fw-la omnibus_fw-la &_o cibis_fw-la &_o potionibus_fw-la quis_fw-la abstineat_fw-la duos_fw-la tamen_fw-la aut_fw-la tres_fw-la vel_fw-la plures_fw-la dies_fw-la possit_fw-la vitam_fw-la ducere_fw-la at_o si_fw-la quis_fw-la spiritus_fw-la in_o corpus_fw-la vias_fw-la intercipiat_fw-la vel_fw-la exiguâ_fw-la diei_fw-la parte_fw-la homini_fw-la pereundum_fw-la fit_n adeo_fw-la necessarius_fw-la est_fw-la usus_fw-la spiritûs_fw-la in_o corpore_fw-la ad_fw-la haec_fw-la quoque_fw-la quum_fw-la omnibus_fw-la aliis_fw-la actionibus_fw-la homines_fw-la quiescant_fw-la quod_fw-la mutationibus_fw-la innumeris_fw-la vita_fw-la sit_fw-la exposita_fw-la ab_fw-la hâc_fw-la tamen_fw-la solâ_fw-la actione_n nunquam_fw-la desistant_fw-la animantia_fw-la quin_fw-la aut_fw-la spiritum_fw-la adducant_fw-la aut_fw-la reddant_fw-la but_o touch_v the_o account_n upon_o which_o the_o inspiration_n and_o expiration_n of_o air_n both_o which_o be_v comprehend_v in_o 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d respiration_n be_v so_o necessary_a to_o life_n both_o naturalist_n and_o physician_n do_v so_o disagree_v that_o it_o will_v be_v very_o difficult_a either_o to_o reconcile_v their_o opinion_n or_o determine_v their_o controversy_n for_o first_o many_o there_o be_v who_o think_v the_o chief_a if_o not_o sole_a use_v of_o respiration_n to_o be_v the_o cool_a and_o temper_v of_o that_o heat_n in_o the_o heart_n and_o blood_n which_o otherwise_o will_v be_v immoderate_a and_o this_o opinion_n not_o only_o seem_v to_o be_v most_o receive_v among_o scholastic_a writer_n but_o divers_a of_o the_o new_a philosopher_n cartesian_n and_o other_o admit_v with_o some_o variation_n teach_v that_o the_o air_n be_v necessary_a by_o its_o coldness_n to_o condense_a the_o blood_n that_o 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be_v wont_a to_o be_v employ_v in_o such_o distemper_n that_o nature_n may_v much_o better_o have_v give_v the_o heart_n but_o a_o
prosecution_n of_o the_o trial._n another_o bird_n be_v within_o about_o half_a a_o minute_n cast_v into_o violent_a convulsion_n and_o reduce_v into_o a_o sprawl_a condition_n upon_o the_o exsuction_n of_o the_o air_n by_o the_o pity_n of_o some_o fair_a lady_n be_v relate_v to_o your_o lordship_n who_o make_v i_o hasty_o let_v in_o some_o air_n at_o the_o stop-cock_n the_o gasp_a animal_n be_v present_o recover_v and_o in_o a_o condition_n to_o enjoy_v the_o benefit_n of_o the_o lady_n compassion_n and_o another_o time_n also_o be_v resolve_v not_o to_o be_v interrupt_v in_o our_o experiment_n we_o do_v at_o night_n shut_v up_o a_o bird_n in_o one_o of_o our_o small_a receiver_n and_o observe_v that_o for_o a_o good_a while_o he_o so_o little_o feel_v thealteration_n of_o the_o air_n that_o he_o fall_v asleep_a with_o his_o head_n under_o his_o wing_n and_o though_o he_o afterward_o awake_v sick_a yet_o he_o continue_v upon_o his_o leg_n between_o forty_o minute_n and_o three_o 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inform_v i_o of_o it_o now_o that_o for_o which_o i_o mention_v this_o story_n be_v that_o have_v have_v the_o curiosity_n and_o opportunity_n to_o make_v particular_a inquiry_n among_o the_o relation_n of_o drebell_n and_o especial_o of_o a_o ingenious_a physician_n that_o marry_v his_o daughter_n concern_v the_o ground_n upon_o which_o he_o conceive_v it_o feasible_a to_o make_v man_n unaccustomed_a to_o continue_v so_o long_o under_o water_n without_o suffocation_n or_o as_o the_o late_o mention_v person_n that_o go_v in_o the_o vessel_n affirm_v without_o inconvenience_n i_o be_v answer_v that_o drebell_n conceive_v that_o it_o be_v not_o the_o whole_a body_n of_o the_o air_n but_o a_o certain_a quintessence_n as_o chemist_n speak_v or_o spirituous_a part_n of_o it_o that_o make_v it_o fit_a for_o respiration_n which_o be_v spend_v the_o remain_a grosser_n body_n or_o carcase_n if_o i_o may_v so_o call_v it_o of_o the_o air_n be_v unable_a to_o cherish_v the_o vital_a flame_n reside_v in_o the_o heart_n so_o that_o for_o aught_o i_o can_v gather_v beside_o the_o mechanical_a contrivance_n of_o his_o vessel_n he_o have_v a_o chemical_a liquor_n which_o he_o account_v the_o chief_a secret_n of_o his_o submarine_a navigation_n for_o when_o from_o time_n to_o time_n he_o perceive_v that_o the_o fine_a and_o pure_a part_n of_o the_o air_n be_v consume_v or_o over-clogged_a by_o the_o respiration_n and_o steam_n of_o those_o that_o go_v in_o his_o ship_n he_o will_v by_o unstop_v a_o vessel_n full_a of_o this_o liquor_n speedy_o restore_v to_o the_o trouble_a air_n such_o a_o proportion_n of_o vital_a part_n as_o will_v make_v it_o again_o for_o a_o good_a while_n fit_a for_o respiration_n whether_o by_o dissipate_v or_o precipitate_v the_o grosser_n exhalation_n or_o by_o some_o other_o intelligible_a way_n i_o must_v not_o now_o stay_v to_o examine_v content_v myself_o to_o add_v that_o have_v have_v the_o opportunity_n to_o do_v some_o service_n to_o those_o of_o his_o relation_n that_o be_v most_o intimate_v with_o he_o and_o have_v make_v it_o my_o business_n to_o learn_v what_o this_o strange_a liquor_n may_v be_v they_o constant_o affirm_v that_o drebell_n will_v never_o disclose_v the_o liquor_n unto_o any_o nor_o so_o much_o as_o tell_v the_o matter_n whereof_o he_o have_v make_v it_o to_o above_o one_o person_n who_o himself_o assure_v i_o what_o it_o be_v this_o account_n of_o drebell_n performance_n i_o mention_v not_o that_o i_o any_o far_a assent_n to_o his_o opinion_n than_o i_o have_v already_o intimate_v but_o because_o the_o man_n and_o the_o invention_n be_v extraordinary_a i_o suppose_v your_o lordship_n will_v not_o be_v displease_v to_o know_v the_o utmost_a i_o can_v learn_v about_o it_o especial_o not_o have_v find_v it_o mention_v by_o any_o writer_n wherefore_o i_o have_v be_v sometime_o incline_v to_o favourable_a thought_n of_o their_o opinion_n who_o will_v have_v the_o air_n necessary_a to_o ventilate_v and_o cherish_v the_o vital_a slame_n which_o they_o do_v suppose_v to_o be_v continual_o burn_v in_o the_o heart_n for_o we_o see_v that_o in_o our_o engine_n the_o flame_n of_o a_o lamp_n will_v last_v almost_o as_o little_a after_o the_o exsuction_n of_o the_o air_n as_o the_o life_n of_o a_o animal_n nay_o i_o remember_v that_o though_o i_o devise_v a_o more_o promise_a way_n to_o make_v a_o fire_n last_o in_o our_o exhaust_a receiver_n yet_o it_o will_v not_o succeed_v we_o take_v a_o hard_a body_n make_v in_o the_o form_n of_o a_o clove_n but_o twice_o as_o long_o and_o proportionable_o thick_a this_o body_n be_v make_v of_o such_o a_o composition_n that_o if_o it_o be_v kindle_a at_o the_o upper_a end_n it_o will_v most_o certain_o burn_v away_o to_o the_o very_a bottom_n much_o better_a than_o a_o match_n we_o convey_v it_o divers_a time_n kindle_a at_o the_o upper_a end_n into_o one_o of_o our_o small_a receiver_n but_o still_o find_v that_o though_o present_o upon_o the_o exsuction_n of_o the_o air_n it_o will_v leave_v smoke_v and_o seem_v quite_o go_v out_o and_o again_o begin_v to_o smoke_v as_o soon_o as_o the_o air_n be_v let_v in_o upon_o it_o yet_o if_o the_o air_n be_v keep_v out_o but_o four_o or_o five_o minute_n the_o fire_n will_v be_v total_o and_o irrevocable_o extinguish_v to_o which_o we_o will_v add_v that_o though_o we_o convey_v into_o a_o great_a receiver_n a_o small_a lamp_n with_o rectify_v spirit_n of_o wine_n that_o be_v so_o pure_a as_o not_o to_o smut_v the_o cotten_n week_n or_o so_o much_o as_o a_o piece_n of_o white_a paper_n hold_v over_o it_o yet_o we_o can_v not_o by_o divers_a trial_n make_v the_o flame_n last_o a_o couple_n of_o minute_n after_o the_o air_n be_v begin_v to_o be_v draw_v out_o but_o though_o our_o engine_n thus_o show_v we_o a_o new_a kind_n of_o resemblance_n betwixt_o
fire_n and_o life_n yet_o the_o opinion_n we_o have_v last_o mention_v be_v not_o free_a from_o difficulty_n for_o though_o in_o the_o heart_n of_o many_o animal_n blood_n be_v a_o warm_a liquor_n and_o in_o some_o even_o a_o hot_a one_o yet_o it_o be_v not_o easy_a to_o conceive_v either_o how_o the_o air_n in_o substance_n can_v get_v thither_o or_o how_o in_o case_n it_o can_v it_o be_v able_a to_o increase_v the_o heat_n since_o however_o the_o air_n may_v increase_v the_o heat_n of_o a_o coal_n by_o blow_v off_o the_o ash_n and_o make_v the_o active_a corpuscle_n pierce_v far_o into_o the_o kindle_a body_n and_o shatter_v it_o the_o more_o yet_o we_o see_v hot_a liquor_n have_v their_o heat_n allay_v and_o not_o augment_v by_o have_v air_n blow_v on_o they_o and_o whereas_o some_o eminent_a naturalist_n think_v it_o not_o inconvenient_a to_o make_v the_o heat_n reside_v in_o the_o heart_n to_o be_v a_o true_a flame_n provide_v they_o add_v that_o it_o be_v such_o a_o temperate_a and_o almost_o insensible_a fire_n as_o the_o flame_n of_o spirit_n of_o wine_n which_o will_v long_o burn_v upon_o fine_a white_a linen_n or_o paper_n without_o consume_v either_o give_v i_o leave_v to_o wish_v that_o they_o have_v be_v more_o curious_a to_o make_v differ_v trial_n with_o that_o liquor_n for_o as_o we_o observe_v in_o another_o treatise_n the_o reason_n why_o a_o linen_n cloth_n dip_v in_o common_a spirit_n of_o wine_n be_v not_o burn_v by_o the_o flame_n of_o it_o be_v because_o the_o phlegm_n of_o the_o liquor_n defend_v the_o cloth_n and_o the_o flame_n of_o spirit_n of_o wine_n be_v so_o far_o from_o be_v too_o weak_a to_o burn_v a_o piece_n of_o paper_n or_o of_o linen_n that_o i_o have_v use_v it_o in_o lamp_n to_o distil_v liquor_n out_o of_o tall_a cucurbite_n and_o find_v that_o the_o spirit_n burn_v away_o indeed_o much_o fast_o than_o salad_n oil_n but_o give_v at_o least_o as_o great_a a_o heat_n nay_o i_o have_v for_o curiosity_n sake_n melt_v crude_a 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will_v now_o subjoin_v a_o experiment_n which_o if_o the_o former_a do_v not_o lessen_v the_o wonder_n of_o it_o will_v probable_o appear_v very_o strange_a to_o your_o lordship_n as_o it_o do_v to_o the_o first_o spectator_n of_o it_o the_o experiment_n be_v this_o we_o cause_v water_n to_o be_v boil_v a_o pretty_a while_n that_o by_o the_o heat_n it_o may_v be_v free_v from_o the_o latitant_fw-la air_n so_o often_o already_o take_v notice_n of_o in_o common_a water_n then_o almost_o fill_v with_o it_o a_o glass_n viol._n capable_a of_o contain_v near_o four_o ounce_n of_o that_o liquor_n we_o convey_v it_o whilst_o the_o water_n be_v yet_o hot_a into_o one_o of_o our_o small_a receiver_n big_a enough_o to_o hold_v about_o a_o pound_n of_o water_n and_o have_v lute_v on_o the_o cover_n we_o cause_v the_o air_n to_o be_v draw_v out_o upon_o the_o two_o first_o exsuction_n there_o scarce_o appear_v any_o change_n in_o the_o liquor_n nor_o be_v there_o any_o notable_a alteration_n make_v 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will_v very_o natural_o be_v explain_v by_o it_o as_o let_v we_o suppose_v for_o instance_n the_o diameter_n of_o these_o small_a coyl_v particle_n of_o the_o air_n which_o be_v next_o the_o earth_n be_v press_v upon_o by_o all_o those_o numerous_a incumbent_a particle_n that_o make_v up_o the_o atmosphere_n and_o be_v thereby_o so_o crowd_v that_o they_o can_v but_o very_o little_o untwist_v themselves_o let_v we_o suppose_v i_o say_v the_o diameter_n of_o these_o particle_n to_o be_v 1_o 1000000000000_o of_o a_o inch_n and_o then_o to_o be_v much_o of_o the_o form_n of_o those_o represent_v in_o the_o 4_o figure_n by_o abcd_n and_o that_o these_o particle_n when_o a_o considerable_a quantity_n of_o the_o pressure_n of_o the_o ambient_fw-la parts_z be_v take_v away_o will_v fly_v abroad_o into_o a_o coyle_n or_o zone_n ten_o time_n as_o big_a in_o diameter_n as_o before_o that_o be_v they_o will_v now_o be_v 10_o 1000000000000_o of_o a_o inch_n in_o diameter_n and_o appear_v in_o 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capable_a of_o compression_n in_o case_n they_o shall_v think_v fit_a which_o i_o know_v not_o that_o any_o of_o they_o do_v to_o assign_v it_o the_o figure_n of_o a_o parallelopipedon_n but_o this_o controversy_n the_o vacuist_n may_v if_o they_o please_v prosecute_v in_o the_o same_o page_n mr._n hobbs_n begin_v and_o in_o the_o next_o he_o continue_v a_o long_a discourse_n concern_v the_o go_v out_o of_o fire_n in_o our_o receiver_n upon_o the_o exhaustion_n of_o the_o air_n the_o passage_n be_v too_o prolix_a and_o do_v too_o little_o concern_v the_o spring_n of_o the_o air_n to_o be_v here_o total_o transcribe_v or_o examine_v period_n by_o period_n in_o sum_n he_o endeavour_v to_o do_v two_o thing_n the_o one_o be_v to_o reduce_v what_o happen_v to_o kindle_a coal_n place_v in_o our_o engine_n to_o what_o happen_v in_o certain_a mine_n wherein_o when_o some_o thick_a damp_n ascend_v both_o charcoal_n and_o candle_n be_v soon_o extinguish_v thereby_o the_o other_o be_v to_o show_v 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mr._n hobbs_n be_v mean_v answer_v he_o nae_fw-la illi_fw-la quae_fw-la dicerent_fw-la non_fw-la videntur_fw-la cogitasse_fw-la sed_fw-la sortitos_fw-la esse_fw-la this_o be_v very_o severe_a but_o let_v we_o see_v what_o weighty_a reason_n he_o have_v to_o be_v so_o credin_n '_o tu_o in_o carbone_fw-la ignito_o partem_fw-la aliquam_fw-la non_fw-la carbonem_fw-la sed_fw-la ignem_fw-la 18._o esse_fw-la aut_fw-la in_o candente_fw-la ferro_fw-la partem_fw-la inesse_fw-la quod_fw-la ferrum_fw-la non_fw-la sit_fw-la sed_fw-la ignis_fw-la but_o some_o will_v think_v that_o by_o these_o word_n he_o do_v rather_o propose_v than_o prove_v his_o opinion_n wherefore_o let_v we_o hear_v his_o ratiocination_n which_o he_o annex_v in_o the_o follow_a word_n ab_fw-la unica_fw-la scintilla_fw-la magnae_fw-la vrbis_fw-la incendium_fw-la nasci_fw-la potest_fw-la atqui_fw-la si_fw-la ignis_fw-la corpus_fw-la ab_fw-la ignito_o diversum_fw-la sit_fw-la 1â—_n non_fw-la plures_fw-la potuere_fw-la esse_fw-la part_n igneae_fw-la in_o toto_fw-la incendio_fw-la quam_fw-la in_o una_fw-la illa_fw-la scintillula_fw-la videmus_fw-la corpora_fw-la diversorum_fw-la generum_fw-la à _fw-la luce_fw-fr solis_fw-la tam_fw-la per_fw-la refractionem_fw-la quam_fw-la reflexionem_fw-la factam_fw-la in_o speculis_fw-la comburentibus_fw-la accendi_fw-la posse_fw-la neque_fw-la tamen_fw-la quenquam_fw-la esse_fw-la credo_fw-la qui_fw-la putet_fw-la particul_fw-la be_v igneas_fw-la à _fw-la sole_fw-la eject_v as_o transire_fw-la posse_fw-la per_fw-la substantiam_fw-la globuli_fw-la crystallini_fw-la in_o aëre_fw-la intermedio_fw-la ignis_fw-la nullus_fw-la est_fw-la but_o i_o doubt_v his_o adversary_n will_v say_v that_o he_o be_v so_o far_o from_o have_v in_o this_o passage_n well_o confute_v their_o opinion_n that_o he_o seem_v not_o to_o have_v well_o understand_v they_o for_o they_o will_v tell_v he_o that_o they_o teach_v not_o that_o the_o fire_n be_v material_o different_a from_o every_o part_n of_o the_o fuel_n but_o that_o the_o igneous_a corpuscle_n whilst_o they_o be_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
shall_v be_v hard_a or_o firm_a than_o the_o same_o water_n be_v before_o such_o congelation_n p._n 87._o ut_fw-la sit_fw-la etc._n etc._n that_o it_o be_v conceivable_a that_o be_v not_o absurd_a and_o that_o from_o its_o be_v grant_v the_o necessity_n of_o the_o phaenomenon_n may_v be_v infer_v p._n 88_o qui_fw-la etc._n etc._n they_o which_o put_v body_n to_o body_n show_v the_o new_a and_o admirable_a work_n of_o nature_n do_v wonderful_o inflame_v the_o mind_n of_o man_n with_o the_o love_n of_o philosophy_n and_o do_v not_o a_o little_a instigate_v they_o unto_o the_o search_n of_o cause_n and_o on_o that_o account_n be_v worthy_a of_o commendation_n true_a for_o they_o enrich_v natural_a history_n without_o which_o natural_a science_n be_v in_o vain_a seek_v for_o a_o summary_n of_o the_o content_n of_o the_o several_a chapter_n chap._n i._n the_o occasion_n and_o scope_n of_o the_o present_a treatise_n reason_n why_o mr._n hobbs_n may_v have_v employ_v himself_o otherwise_o and_o have_v spare_v this_o discourse_n p._n 2._o why_o the_o author_n will_v have_v be_v content_v he_o have_v do_v so_o ibid._n why_o he_o now_o undertake_v the_o reply_n p._n 3._o chap._n ii_o of_o some_o mistake_n of_o mr._n hobbs_n touch_v matter_n of_o fact_n and_o the_o author_n doctrine_n that_o he_o mistake_v in_o ascribe_v the_o explication_n and_o experiment_n in_o the_o physicomechanical_a treatise_n of_o the_o society_n at_o gresham_n college_n p._n 3._o the_o experiment_n have_v be_v see_v do_v long_o and_o the_o book_n publish_v before_o the_o society_n begin_v etc._n etc._n p._n 4._o that_o the_o experiment_n be_v not_o devise_v nor_o employ_v to_o prove_v a_o vacuum_n ibid._n whether_o mr._n hobbs_n by_o the_o experiment_n of_o the_o gardener_n watering-pot_n demonstrate_v that_o there_o can_v be_v no_o vacuum_n p._n 5._o that_o if_o the_o watering-pot_n be_v tall_a enough_o the_o water_n will_v run_v out_o with_o unstop_v the_o upper_a orifice_n prove_v by_o m._n paschal_n experiment_n p._n 6._o the_o way_n of_o argument_n on_o both_o side_n compare_v p._n 7_o 8._o why_o the_o author_n do_v not_o assign_v the_o cause_n of_o spring_n p._n 9_o that_o mr._n hobbs_n his_o account_n of_o spring_n be_v imperfect_a and_o that_o he_o have_v not_o solve_v the_o phaenomena_n of_o they_o p._n 10_o 11_o 12_o 13._o that_o he_o mistake_v the_o author_n notion_n of_o the_o air_n p._n 14._o 15._o chap._n iii_o wherein_o the_o weight_n and_o spring_n of_o the_o air_n be_v assert_v against_o mr._n hobbs_n several_a experiment_n recite_v that_o prove_v the_o real_a weight_n of_o the_o air_n p._n 16_o 17._o mr._n hobbs_n objection_n against_o the_o experiment_n of_o the_o heaviness_n of_o a_o blow_a bladder_n p._n 17_o 18._o answer_v p._n 19_o the_o spring_n of_o the_o air_n assert_v from_o mr._n hobbs_n concession_n p._n 20_o 21_o the_o same_o assert_v by_o particular_a experiment_n p._n 22_o 23._o mr._n hobbs_n his_o answer_n to_o that_o of_o the_o bladder_n consider_v p._n 23_o 24._o experiment_n of_o the_o spring_n of_o the_o air_n not_o compress_v p._n 25._o chap._n iu._n wherein_o mr._n hobbs_n his_o principal_a explication_n of_o the_o author_n phaenomena_n be_v examine_v what_o thing_n mr._n hobbs_n take_v for_o grant_v p._n 26._o his_o hypothesis_n consider_v of_o the_o simple_a circular_a motion_n whether_o it_o be_v not_o precarious_o ascribe_v to_o aqueous_a and_o earthy_a particle_n p._n 27_o 28._o whether_o in_o the_o exhaustion_n of_o the_o cylinder_n any_o vacuum_n be_v produce_v p._n 29_o 30_o 31._o experiment_n to_o prove_v that_o the_o glass_n be_v in_o great_a part_n devoid_a of_o common_a air_n p._n 31_o 32._o whether_o a_o pure_a sort_n of_o air_n may_v unperceived_a dive_v under_o water_n to_o pass_v into_o the_o receiver_n betwixt_o the_o cylinder_n and_o the_o suker_n p._n 33_o 34._o that_o the_o cartesian_a way_n of_o explicate_v this_o phaenomenon_n in_o favour_n of_o the_o plenist_n be_v more_o plausible_a than_o mr._n hobbs_n p._n 35._o whether_o the_o place_n desert_v by_o the_o suspend_v mercury_n in_o the_o torricellian_a experiment_n be_v empty_a or_o full_a of_o air_n p._n 37_o 38._o mr._n hobbs_n explication_n of_o that_o experiment_n of_o mr._n boyle_n in_o which_o the_o air_n impell_v up_o the_o sucker_n together_o with_o above_o 100_o pound_n weight_n p._n 39_o 40._o the_o examination_n of_o this_o explication_n p._n 41_o 42._o chap._n v._n in_o which_o divers_a scatter_a explication_n and_o other_o passage_n in_o mr._n hobbs_n dialogue_n be_v examine_v his_o explication_n why_o water_n without_o visible_a force_n ascend_v in_o a_o slender_a pipe_n consider_v p._n 44_o 45._o why_o the_o stopple_n of_o the_o cover_n of_o the_o exhaust_a receiver_n so_o much_o gravitates_fw-la consider_v p._n 46._o his_o explication_n and_o the_o author_n why_o in_o the_o exhaust_v of_o the_o receiver_n water_n let_v down_o into_o it_o boil_v as_o it_o be_v or_o bubble_n there_o view_v and_o compare_v p._n 47_o 48_o whether_o the_o phaenomenon_n of_o this_o water_n bubble_v in_o the_o receiver_n be_v a_o evidence_n that_o there_o be_v no_o vacuity_n in_o the_o receiver_n p._n 49_o 50._o whether_o animal_n in_o the_o exhaust_a receiver_n die_v for_o want_n of_o air_n or_o for_o the_o cause_n assign_v by_o mr._n hobbs_n p._n 51_o 52._o that_o the_o author_n assert_v not_o the_o proof_n of_o a_o vacuum_n or_o plenum_fw-la to_o depend_v on_o the_o hypothesis_n of_o the_o spring_n of_o the_o air_n p._n 53._o that_o the_o air_n in_o the_o exhaust_a receiver_n be_v not_o thick_a but_o thin_a not_o heavy_a but_o light_a prove_v by_o experiment_n p._n 54_o 55._o the_o epicurean_a hypothesis_n of_o fire_n and_o the_o effect_n of_o the_o sunbeam_n through_o burning-glass_n p._n 57_o whether_o he_o deserve_v a_o censure_n that_o call_v kindle_v coal_n fire_n p._n 58._o chap._n vi_o wherein_o other_o passage_n of_o mr._n hobbs_n dialogue_n that_o concern_v the_o author_n be_v examine_v that_o the_o experiment_n of_o the_o needle_n be_v motion_n in_o the_o exhaust_a receiver_n and_o of_o sound_n be_v audible_a and_o object_n visible_a there_o be_v reconcilable_a to_o the_o doctrine_n of_o the_o atomist_n p._n 59_o whether_o from_o the_o cohesion_n of_o two_o marble_n the_o non_fw-la existence_n of_o a_o vacuum_n follow_v p._n 60_o 61._o how_o the_o low_a marble_n be_v uphold_v p._n 62_o 63._o the_o power_n of_o the_o oblique_a pressure_n of_o the_o air_n to_o these_o effect_n illustrate_v by_o experiment_n p._n 64._o whether_o the_o throw_v up_o of_o water_n in_o the_o glass_n fountain_n invent_v by_o vincenzo_n vincenti_fw-la of_o urbino_n can_v be_v explicate_v by_o the_o spring_n of_o the_o air_n p._n 67_o 68_o mr_n hobbs_n explication_n of_o the_o cause_n of_o water_n be_v suspend_v in_o a_o gardener_n watering-pot_n examine_v p._n 69._o a_o experiment_n purposely_o devise_v to_o show_v that_o both_o vacuist_n and_o plenist_n shall_v admit_v a_o elastical_a power_n in_o the_o air_n p._n 70_o 71._o mr._n hobbs_n correction_n of_o the_o author_n discourse_n about_o the_o ascension_n of_o water_n in_o siphons_n and_o filtre_n animadvert_v p._n 72._o some_o unhandsome_a passage_n and_o such_o as_o show_v the_o unequal_a estimation_n mr._n hobbs_n have_v of_o his_o own_o and_o other_o preformance_n in_o philosophy_n p._n 73_o 74._o what_o part_n of_o mr._n hobbs_n treatise_n and_o why_o pass_v by_o without_o censure_n by_o the_o author_n p._n 75._o chap._n vii_o be_v a_o appendix_n to_o the_o past_a discourse_n wherein_o be_v examine_v what_o mr._n hobbs_n teach_v concern_v fluidity_n and_o firmness_n mr._n hobbs_n mistake_v and_o so_o misreport_v the_o author_n doctrine_n of_o the_o cause_n of_o fluidity_n p._n 77._o his_o animadversion_n on_o the_o doctrine_n consider_v p._n 78_o 79._o whether_o fluid_a body_n be_v make_v from_o part_n original_o fluid_a or_o from_o small_a solid_n in_o motion_n etc._n etc._n p._n 79_o 80_o 81._o mr._n hobbs_n theory_n of_o fluidity_n and_o firmness_n examine_v p._n 81_o 82_o etc._n etc._n what_o influence_n therein_o his_o simple_a circular_a motion_n may_v have_v consider_v p._n 82_o 83._o that_o there_o be_v a_o three_o requisite_a of_o a_o good_a hypothesis_n viz._n that_o it_o be_v not_o inconsistent_a with_o any_o truth_n or_o phaenomenon_n of_o nature_n p._n 84._o that_o mr_n hobbs_n his_o hypothesis_n want_v this_o requisite_a prove_v by_o reference_n p._n 85._o by_o instance_n out_o of_o ordinary_a not_o elaborate_a experiment_n p._n 86._o the_o conclusion_n to_o the_o reader_n p._n 88_o finis_fw-la a_o catalogue_n of_o all_o the_o philosophical_a work_n publish_v by_o our_o author_n *_o new_a physicomechanical_a experiment_n concern_v the_o weight_n and_o spring_n of_o the_o air_n publish_v in_o english_a anno_fw-la dom._n 1660._o *_o a_o continuation_n of_o they_o part_v i._o 1669._o *_o the_o defence_n of_o the_o