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the_o fuel_n but_o that_o the_o igneous_a corpuscle_n whilst_o they_o be_v
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other_o experiment_n experiment_n viii_o we_o take_v a_o glass_n helmet_n or_o alembick_a delineate_v by_o the_o seven_o figure_n such_o as_o chemist_n use_v in_o distillation_n and_o contain_v by_o conjecture_n between_o two_o and_o three_o pint_n the_o rostrum_n or_o rose_n of_o it_o mark_v with_o c_o be_v hermetical_o close_v and_o at_o the_o top_n of_o it_o be_v a_o hole_n into_o which_o be_v fit_v and_o cement_v one_o of_o the_o shanks_n of_o a_o middlesized_a stop-cock_n so_o that_o the_o glass_n be_v turn_v upside-down_a the_o wide_a orifice_n which_o in_o common_a glass-helmet_n be_v the_o only_a one_o be_v upward_o and_o to_o that_o wide_a orifice_n be_v fit_v a_o cast_a cover_n of_o lead_n which_o be_v careful_o cement_v on_o to_o the_o glass_n then_o the_o other_o shank_n of_o the_o stop-cock_n be_v with_o cement_n likewise_o fasten_v into_o the_o upper_a part_n of_o the_o pump_n the_o exsuction_n of_o the_o air_n be_v endeavour_v but_o it_o be_v not_o long_o before_o the_o remain_a air_n be_v make_v much_o too_o weak_a to_o balance_v the_o pressure_n of_o the_o ambient_fw-la air_n the_o glass_n be_v not_o without_o a_o great_a noise_n crack_v almost_o half_a round_n along_o that_o part_n of_o it_o where_o it_o begin_v to_o bend_v inward_o as_o if_o in_o the_o figure_n the_o crack_n have_v be_v make_v according_a to_o the_o line_n a_o b_o and_o upon_o a_o endeavour_n to_o pump_v out_o more_o of_o the_o air_n the_o crack_n once_o begin_v appear_v to_o run_v on_o far_a though_o the_o glass_n where_o it_o be_v break_v seem_v to_o be_v by_o conjecture_n above_o ten_o some_o thought_n above_o twenty_o time_n as_o thick_a as_o the_o bubble_n mention_v in_o the_o forego_n
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 to_o be_v lessen_v more_o and_o more_o in_o all_o its_o dimension_n and_o we_o observe_v that_o the_o flame_n do_v not_o as_o before_z retire_v itself_o by_o little_a and_o little_a towards_o the_o top_n but_o towards_o the_o bottom_n of_o the_o week_n from_o which_o yet_o it_o do_v a_o little_a withdraw_v upward_o just_a before_o it_o go_v out_o so_o that_o the_o upper_a part_n of_o the_o week-appeared_a for_o a_o pretty_a while_n manifest_o above_o the_o top_n of_o the_o flame_n which_o have_v last_v about_o five_o minute_n be_v succeed_v by_o a_o direct_o ascend_v stream_n of_o smoke_n experiment_n xi_o there_o be_v take_v a_o wire_n which_o be_v bend_v almost_o in_o the_o form_n of_o a_o screw_n constitute_v such_o a_o instrument_n to_o contain_v coal_n and_o leave_v they_o every_o way_n accessible_a to_o the_o air_n as_o the_o ten_o figure_n declare_v the_o breadth_n of_o this_o vessel_n be_v no_o less_o than_o that_o it_o may_v with_o ease_n be_v convey_v into_o the_o receiver_n 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 of_o the_o fire_n there_o have_v pass_v but_o three_o minute_n whereupon_o to_o try_v the_o experiment_n a_o little_a far_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 quench_v for_o in_o the_o open_a air_n the_o coal_n begin_v to_o be_v rekindled_n in_o several_a place_n wherefore_o have_v by_o swing_v they_o about_o in_o the_o wire_n thorough_o light_v they_o the_o second_o time_n we_o let_v they_o down_o again_o into_o the_o receiver_n and_o close_v it_o speedy_o as_o before_o and_o then_o wait_v till_o the_o fire_n seem_v total_o extinct_a without_o meddle_v with_o the_o pump_n we_o find_v that_o from_o the_o time_n the_o vessel_n be_v close_v till_o that_o no_o fire_n at_o all_o can_v be_v perceive_v there_o have_v pass_v about_o four_o minute_n whereby_o it_o seem_v to_o appear_v that_o the_o draw_v away_o of_o the_o ambient_fw-la air_n make_v the_o fire_n go_v out_o soon_o than_o otherwise_o it_o will_v have_v do_v though_o that_o part_n of_o the_o air_n that_o we_o draw_v out_o leave_v the_o more_o room_n for_o the_o stifle_a steam_n of_o the_o coal_n to_o be_v receive_v into_o last_o have_v take_v out_o the_o wire_n and_o put_v other_o coal_n into_o it_o we_o do_v in_o the_o same_o room_n where_o the_o engine_n stand_v let_v it_o hang_v quiet_o by_o a_o string_n in_o the_o open_a air_n to_o try_v how_o long_o the_o fire_n will_v last_v without_o agitation_n when_o no_o air_n be_v keep_v from_o it_o and_o we_o find_v that_o the_o fire_n begin_v to_o go_v out_o first_o at_o the_o top_n and_o outside_n of_o the_o coal_n but_o inward_o and_o near_o the_o bottom_n the_o fire_n continue_v visible_a for_o above_o half_a a_o hour_n a_o great_a part_n of_o the_o coal_n especial_o those_o next_o the_o bottom_n be_v burn_v to_o ash_n before_o the_o fire_n go_v out_o we_o cause_v likewise_o a_o piece_n of_o iron_n to_o be_v forge_v of_o the_o bigness_n of_o 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
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 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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 the_o experiment_n in_o that_o glass_n and_o induce_v to_o make_v trial_n of_o it_o in_o our_o great_a receiver_n have_v then_o after_o some_o difficulty_n lodge_v the_o combustible_a matter_n in_o the_o cavity_n of_o this_o vessel_n in_o such_o manner_n as_o that_o it_o be_v almost_o contiguous_a to_o that_o side_n thereof_o that_o be_v next_o the_o sun_n we_o do_v endeavour_v with_o a_o pretty_a large_a burning-glass_n to_o kindle_v it_o but_o find_v as_o we_o fear_v that_o by_o reason_n of_o the_o thickness_n of_o the_o glass_n which_o be_v also_o of_o a_o less_o pure_a and_o less_o diaphanous_a matter_n than_o the_o other_o the_o sunbeam_n throw_v in_o by_o the_o burning-glass_n be_v in_o their_o passage_n so_o dislocate_v and_o scatter_v not_o now_o to_o mention_v those_o many_o that_o be_v reflect_v can_v not_o pierce_v into_o the_o cavity_n of_o the_o receiver_n that_o we_o can_v not_o possible_o unite_v enough_o of_o they_o to_o kindle_v the_o matter_n nor_o so_o much_o as_o 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 recital_n because_o carneades_n and_o eleutherius_fw-la have_v in_o some_o dialogue_n concern_v heat_n and_o flame_n which_o be_v last_o year_n see_v by_o some_o friend_n and_o may_v be_v when_o you_o please_v command_v by_o you_o mention_v divers_a of_o my_o thought_n and_o experiment_n concern_v fire_n experiment_n xvi_o we_o design_v to_o try_v whether_o or_o no_o divers_a magnetical_a experiment_n will_v exhibit_v any_o unusual_a phaenomena_n be_v make_v in_o our_o evacuated_a receiver_n instead_o of_o the_o open_a air_n but_o for_o want_v of_o leisure_n and_o conveniency_n to_o prosecute_v such_o trial_n we_o be_v induce_v to_o reserve_v the_o rest_n for_o another_o time_n and_o to_o content_v ourselves_o with_o make_v that_o which_o follow_v we_o convey_v into_o the_o receiver_n a_o little_a pedestal_n of_o wood_n in_o the_o midst_n of_o which_o be_v perpendicular_o erect_v a_o slender_a iron_n upon_o who_o sharp_a point_n a_o excite_a needle_n of_o steel_n purposely_o make_v and_o of_o about_o five_o inch_n long_o be_v so_o place_v that_o hang_v in_o a_o aequilibrium_fw-la it_o can_v move_v free_o towards_o either_o hand_n then_o the_o air_n be_v after_o the_o usual_a manner_n pump_v out_o we_o apply_v a_o loadstone_n moderate_o vigorous_a to_o the_o outside_n of_o the_o glass_n and_o find_v that_o it_o attract_v or_o repel_v the_o end_n of_o the_o needle_n according_a to_o the_o law_n magnetical_a without_o any_o remarkable_a difference_n from_o what_o the_o same_o loadstone_n will_v have_v do_v have_v none_o of_o the_o air_n be_v draw_v away_o from_o about_o the_o needle_n which_o when_o the_o loadstone_n be_v remove_v after_o some_o tremulous_a vibration_n to_o and_o fro_o rest_v in_o a_o position_n wherein_o it_o look_v north_n and_o south_n experiment_n xvii_o proceed_v we_o now_o to_o the_o mention_n of_o that_o experiment_n whereof_o the_o
small_a glass_n not_o contain_v above_o a_o pound_n and_o a_o half_a of_o water_n the_o phaenomenon_n may_v be_v exhibit_v though_o the_o stop-cock_n be_v open_a provide_v the_o sucker_n be_v draw_v nimble_o down_o we_o note_v too_o that_o when_o we_o begin_v to_o empty_v the_o receiver_n the_o appearance_n of_o light_n be_v much_o more_o conspicuous_a than_o towards_o the_o latter_a end_n when_o little_a air_n at_o a_o time_n can_v pass_v out_o of_o the_o receiver_n we_o observe_v also_o that_o when_o the_o sucker_n have_v not_o be_v long_o before_o well_o oil_v and_o instead_o of_o the_o great_a receiver_n the_o small_a vessel_n abovementioned_a be_v empty_v we_o observe_v i_o say_v that_o then_o upon_o the_o open_n of_o the_o stop-cock_n as_o the_o air_n descend_v out_o of_o the_o glass_n into_o the_o empty_v cylinder_n so_o at_o the_o same_o time_n there_o ascend_v out_o of_o the_o cylinder_n into_o the_o vessel_n a_o certain_a steam_n which_o seem_v to_o consist_v of_o very_o little_a bubble_n or_o other_o minute_n corpuscle_n throw_v up_o from_o the_o oil_n rarefy_v by_o the_o attrition_n it_o suffer_v in_o the_o cylinder_n for_o at_o the_o same_o time_n that_o these_o steam_n ascend_v into_o the_o glass_n some_o of_o the_o same_o kind_n manifest_o issue_v out_o like_o a_o little_a pillar_n of_o smoke_n at_o the_o orifice_n of_o the_o valve_n when_o that_o be_v occasional_o open_v and_o these_o steam_n frequent_o enough_o present_v themselves_o to_o our_o view_n we_o find_v by_o expose_v the_o glass_n to_o a_o clear_a light_n that_o they_o be_v wont_a to_o play_v up_o and_o down_o in_o it_o and_o so_o by_o their_o whitishness_n to_o emulate_v in_o some_o measure_n the_o apparition_n of_o light_n for_o we_o likewise_o sometime_o find_v by_o watchful_a observation_n that_o when_o the_o flash_n be_v great_a not_o only_o at_o the_o very_a instant_n the_o receiver_n lose_v of_o its_o transparency_n by_o appear_v full_a of_o some_o kind_n of_o whitish_a substance_n but_o that_o for_o some_o short_a time_n after_o the_o side_n of_o the_o glass_n continue_v somewhat_o opacous_a and_o seem_v to_o be_v darken_v as_o if_o some_o whitish_a steam_n adhere_v to_o the_o inside_n of_o they_o he_o that_o will_v render_v a_o reason_n of_o the_o phaenomenon_n whereof_o all_o these_o be_v not_o all_o the_o circumstance_n must_v do_v two_o thing_n whereof_o the_o one_o be_v difficult_a and_o the_o other_o little_o less_o than_o impossible_a for_o he_o must_v give_v a_o account_n not_o only_a whence_o the_o appear_a whiteness_n proceed_v but_o wherefore_o that_o whiteness_n do_v sometime_o appear_v and_o sometime_o not_o for_o our_o part_n we_o free_o confess_v ourselves_o at_o a_o loss_n about_o render_v a_o reason_n of_o the_o less_o difficult_a part_n of_o the_o problem_n and_o though_o your_o lordship_n shall_v even_o press_v we_o to_o declare_v what_o conjecture_n it_o be_v that_o the_o above_o recite_v circumstance_n suggest_v to_o we_o we_o shall_v propose_v the_o thought_n we_o then_o have_v no_o otherwise_o than_o as_o bare_a conjecture_n in_o case_n then_o our_o phaenomenon_n have_v constant_o and_o uniform_o appear_v we_o shall_v have_v suspect_v it_o to_o have_v be_v produce_v after_o some_o such_o manner_n as_o follow_v first_o we_o observe_v that_o think_v that_o which_o we_o see_v in_o our_o receiver_n seem_v to_o be_v some_o kind_n of_o light_n yet_o it_o be_v indeed_o but_o a_o whiteness_n which_o do_v as_o have_v already_o be_v note_v opacate_v as_o some_o speak_v the_o inside_n of_o the_o glass_n next_o we_o consider_v that_o our_o common_a air_n abound_v with_o particle_n or_o little_a body_n capable_a to_o reflect_v the_o beam_n of_o light_n of_o this_o we_o may_v easy_o give_v divers_a proof_n but_o we_o shall_v name_v but_o two_o the_o one_o that_o vulgar_a observation_n of_o the_o mote_n that_o appear_v in_o multitude_n swim_v up_o and_o down_o in_o the_o air_n when_o the_o sunbeam_n shoot_v into_o a_o room_n or_o any_o other_o shady_a place_n discover_v they_o though_o otherwise_o the_o eye_n can_v distinguish_v they_o from_o the_o rest_n of_o the_o air_n the_o other_o proof_n we_o will_v take_v from_o what_o we_o and_o no_o doubt_n very_o many_o other_o have_v observe_v touch_v the_o illumination_n of_o the_o air_n in_o the_o night_n and_o we_o particular_o remember_v that_o be_v at_o some_o distance_n from_o london_n one_o night_n that_o the_o people_n upon_o a_o very_a welcome_a occasion_n testify_v their_o joy_n by_o numerous_a bonfire_n though_o by_o reason_n of_o the_o interposition_n of_o the_o house_n we_o can_v not_o see_v the_o fire_n themselves_o yet_o we_o can_v plain_o see_v the_o air_n all_o enlighten_v over_o and_o near_o the_o city_n which_o argue_v that_o the_o lucid_a beam_n shoot_v upward_o from_o the_o fire_n meet_v in_o the_o air_n with_o corpuscle_n opacous_a enough_o to_o reflect_v they_o to_o our_o eye_n a_o three_o thing_n that_o we_o consider_v be_v that_o 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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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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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ignorato_fw-la motu_fw-la ignorari_fw-la naturam_fw-la quomodo_fw-la tantum_fw-la in_o vos_fw-la suscipere_fw-la onus_fw-la ausi_fw-la estis_fw-la etc._n etc._n as_o to_o what_o he_o say_v to_o the_o disparagement_n of_o the_o assembly_n and_o in_o his_o own_o praise_n the_o law_n i_o prescribe_v myself_o at_o the_o begin_n of_o this_o discourse_n forbid_v i_o to_o reply_v to_o what_o be_v more_o likely_a among_o civil_a and_o judicious_a reader_n to_o prejudice_v his_o own_o reputation_n than_o they_o he_o be_v so_o displease_v with_o and_o as_o for_o that_o which_o he_o assign_v to_o be_v the_o use_n of_o our_o engine_n i_o shall_v very_o willing_o leave_v it_o to_o the_o ingenious_a to_o judge_v what_o use_n may_v be_v make_v of_o it_o but_o as_o for_o this_o mention_v by_o mr._n hobbs_n if_o he_o mean_v here_o as_o he_o elsewhere_o teach_v pag._n 13._o and_o 19_o that_o the_o motion_n he_o speak_v of_o be_v produce_v by_o that_o of_o the_o air_n impel_v betwixt_o the_o side_n of_o the_o sucker_n and_o the_o cylinder_n perhaps_o it_o will_v be_v think_v i_o have_v sufficient_o prove_v that_o it_o be_v not_o any_o of_o its_o use_n so_o far_o be_v it_o from_o be_v its_o chief_a or_o only_o use_v but_o i_o confess_v i_o somewhat_o wonder_v mr._n hobbs_n shall_v quarrel_v with_o i_o for_o it_o be_v i_o that_o in_o my_o epistle_n employ_v the_o follow_a verse_n for_o say_v est_fw-la aliquid_fw-la prodire_fw-la tenus_fw-la si_fw-la non_fw-la datur_fw-la ultra_fw-la and_o this_o not_o as_o some_o will_v perhaps_o suspect_v because_o i_o do_v not_o imitate_v he_o in_o speak_v of_o myself_o as_o he_o do_v of_o himself_o but_o because_o he_o think_v the_o expression_n too_o arrogant_a for_o since_o he_o here_o confess_v that_o his_o hypothesis_n be_v by_o this_o engine_n render_v more_o probable_a some_o will_v perchance_o think_v that_o to_o be_v enough_o to_o entitle_v my_o experiment_n to_o some_o degree_n of_o usefulness_n unless_o mr._n hobbs_n doctrine_n of_o the_o air_n have_v find_v more_o embracer_n than_o before_o these_o seasonable_a though_o despise_v experiment_n it_o be_v observe_v to_o have_v but_o since_o either_o of_o we_o may_v be_v partial_a in_o his_o own_o case_n i_o be_o very_a well_o content_a to_o leave_v other_o to_o judge_v both_o whether_o my_o expression_n have_v be_v guilty_a of_o arrogance_n and_o how_o much_o he_o have_v do_v more_o than_o prodire_fw-la tenus_fw-la in_o all_o the_o past_a long_a discourse_n against_o i_o when_o they_o have_v consider_v what_o new_a experiment_n or_o matter_n of_o fact_n mr._n hobbs_n have_v therein_o add_v to_o enrich_v the_o history_n of_o nature_n what_o new_a truth_n he_o have_v discover_v or_o what_o error_n except_o one_o of_o his_o own_o in_o the_o last_o page_n he_o have_v well_o confute_v these_o thing_n i_o say_v i_o be_o very_a well_o content_a to_o leave_v to_o be_v judge_v of_o by_o all_o disinteressed_n person_n without_o be_v much_o discourage_v by_o the_o differ_a strain_n wherein_o mr._n hobbs_n think_v fit_a to_o speak_v of_o his_o own_o performance_n and_o i_o or_o invite_v to_o imitate_v he_o in_o that_o way_n of_o writing_n my_o endeavour_n such_o as_o they_o be_v have_v hitherto_o be_v favour_v with_o such_o a_o reception_n among_o the_o virtuoso_n that_o possible_o i_o may_v have_v almost_o as_o little_a need_n as_o reason_n to_o commend_v they_o but_o it_o be_v somewhat_o trouble_n some_o work_n to_o argue_v long_o with_o a_o man_n that_o be_v angry_a with_o a_o expression_n which_o perhaps_o none_o but_o he_o will_v have_v find_v fault_n with_o for_o want_v of_o modesty_n and_o therefore_o as_o i_o have_v lest_o un-recited_n several_a provoke_v and_o very_o undeserved_a expression_n he_o employ_v in_o the_o same_o page_n and_o even_o that_o passage_n where_o to_o prove_v our_o naturalist_n and_o mathematician_n profess_v they_o will_v not_o receive_v truth_n come_v from_o he_o he_o allege_v only_o a_o say_n whether_o true_a or_o no_o i_o examine_v not_o of_o dr._n owen_n who_o beside_o that_o his_o profession_n be_v divinity_n not_o philosophy_n or_o mathematics_n neither_o be_v nor_o ever_o be_v of_o our_o society_n as_o i_o say_v i_o have_v for_o the_o reason_n new_o intimate_v decline_v take_v notice_n of_o matter_n of_o this_o nature_n so_o i_o will_v not_o now_o stay_v to_o inquire_v why_o he_o urge_v we_o who_o he_o will_v have_v man_n take_v for_o vacuist_n with_o the_o authority_n of_o aristotle_n who_o on_o other_o occasion_n he_o be_v wont_a to_o use_v with_o as_o little_a respect_n as_o if_o he_o be_v a_o member_n of_o our_o society_n nor_o shall_v i_o now_o examine_v why_o here_o and_o elsewhere_o he_o send_v we_o to_o his_o own_o write_n for_o the_o doctrine_n of_o motion_n as_o if_o to_o omit_v ancient_a author_n such_o great_a personage_n as_o galileo_n mersennus_n verulam_n des-cartes_n gassendus_fw-la balianus_n foannes_n marcus_n marci_n honoratus_n fabris_fw-la not_o to_o mention_v other_o modern_n nor_o those_o of_o our_o own_o assembly_n as_o the_o eminent_o learned_a sir_n kenelm_n digby_n and_o the_o other_o who_o their_o modesty_n forbid_v i_o here_o to_o name_n have_v not_o most_o of_o they_o learned_o and_o some_o of_o they_o copious_o write_v of_o local_a motion_n before_o mr._n hobbs_n book_n where_o he_o treat_v of_o it_o come_v abroad_o into_o the_o world_n this_o i_o say_v i_o shall_v not_o insist_v on_o because_o i_o will_v hasten_v to_o a_o conclusion_n only_o one_o thing_n i_o must_v add_v that_o whereas_o he_o accuse_v we_o of_o devise_v elaborate_a and_o sumptuous_a engine_n i_o do_v not_o fear_v to_o find_v so_o many_o reader_n of_o his_o mind_n that_o i_o need_v make_v they_o excuse_n for_o what_o perhaps_o will_v obtain_v their_o thanks_o and_o whatever_o mr._n hobbs_n may_v think_v for_o my_o part_n i_o free_o confess_v that_o i_o love_v truth_n so_o well_o that_o i_o do_v not_o think_v no_o only_a my_o pain_n and_o charge_n but_o even_o what_o i_o rate_v much_o high_a my_o time_n itself_o too_o much_o for_o the_o discovery_n of_o truth_n or_o that_o mr._n hobbs_n may_v not_o think_v i_o partial_a even_o for_o the_o establishment_n of_o such_o truth_n as_o though_o discover_v by_o some_o be_v yet_o as_o far_o more_o general_o oppose_v than_o embrace_v there_o remain_v yet_o some_o other_o page_n of_o mr._n hobbs_n dialogue_n wherein_o he_o speak_v of_o fire_n and_o cold_a and_o ice_n and_o light_n and_o colour_n and_o fluidity_n and_o hardness_n and_o thickness_n and_o ethic_n and_o politic_n and_o the_o duplication_n of_o the_o cube_n and_o the_o quadrature_n of_o the_o circle_n and_o several_a other_o subject_n but_o these_o i_o forbear_v to_o meddle_v with_o not_o that_o i_o approve_v they_o all_o or_o the_o great_a part_n but_o partly_o because_o i_o be_o too_o much_o tire_v already_o to_o be_v fond_a of_o engage_v in_o controversy_n that_o i_o be_o not_o tie_v to_o meddle_v with_o except_o what_o concern_v fluidity_n and_o firmness_n which_o i_o shall_v god_n willing_a examine_v by_o itself_o partly_o because_o divers_a passage_n relate_v to_o person_n not_o thing_n partly_o because_o i_o do_v not_o much_o fear_n that_o mr._n hobbs_n will_v find_v every_o reader_n so_o easy_a and_o complaisant_a as_o he_o make_v his_o academian_n who_o in_o many_o passage_n of_o the_o dialogue_n speak_v not_o unsutable_o to_o what_o he_o do_v in_o the_o last_o page_n ofit_n where_o he_o except_v but_o one_o particular_a and_o that_o be_v neither_o the_o duplication_n of_o the_o cube_n nor_o the_o square_n of_o the_o circle_n when_o he_o tell_v mr._n hobbs_n discedo_fw-la jam_fw-la multo_fw-la ut_fw-la mihi_fw-la videor_fw-la quam_fw-la ante_fw-la certior_fw-la &_o quae_fw-la dixifti_n omne_fw-la teneo_fw-la &_o probo_fw-la and_o partly_o because_o mr._n hobbs_n have_v some_o thing_n as_o about_o fire_n and_o certain_a colour_n which_o i_o be_o not_o forward_a to_o reject_v though_o the_o consideration_n that_o incline_v i_o to_o some_o such_o opinion_n be_v perhaps_o very_o differ_v from_o the_o ground_n on_o which_o he_o propose_v they_o and_o indeed_o as_o well_o my_o nature_n as_o my_o custom_n forbid_v i_o to_o scruple_n to_o learn_v if_o i_o can_v of_o person_n much_o less_o famous_a than_o mr._n hobbs_n it_o be_v far_o from_o my_o humour_n to_o write_v against_o all_o that_o every_o man_n say_v that_o how_o causeless_o soever_o write_v against_o i_o and_o i_o be_o almost_o as_o much_o indispose_v to_o reject_v as_o to_o embrace_v without_o distinction_n whatever_o it_o be_v that_o this_o or_o that_o man_n teach_v 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 although_o mr._n hobbs_n do_v not_o name_v i_o for_o the_o maintainer_n of_o the_o opinion_n which_o i_o have_v propose_v in_o
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