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of_o they_o since_o the_o objection_n he_o have_v propose_v against_o i_o have_v be_v sufficient_o answer_v and_o since_o the_o hypothesis_n he_o will_v substitute_v in_o the_o room_n of_o we_o beside_o that_o it_o be_v partly_o precarious_a suppose_v thing_n which_o divers_a of_o the_o eminent_a wit_n of_o our_o age_n otherwise_o of_o differ_v opinion_n profess_v they_o can_v admit_v or_o so_o much_o as_o understand_v whereas_o the_o weight_n and_o spring_n of_o the_o air_n be_v not_o deny_v by_o our_o author_n himself_o and_o be_v demonstrable_a by_o experiment_n that_o be_v not_o controvert_v betwixt_o we_o which_o thing_n i_o represent_v for_o the_o defence_n of_o what_o i_o think_v the_o truth_n and_o not_o to_o offend_v my_o learned_a adversary_n who_o shall_v have_v my_o free_a consent_n to_o be_v think_v to_o have_v fail_v rather_o in_o the_o choice_n than_o in_o the_o management_n of_o the_o controversy_n though_o since_o this_o pass_n for_o his_o first_o book_n and_o since_o consequent_o he_o be_v not_o like_a to_o have_v be_v provoke_v or_o engage_v in_o point_n of_o reputation_n to_o challenge_v i_o or_o any_o of_o those_o far_o more_o eminent_a person_n he_o have_v name_v among_o his_o adversary_n i_o be_o induce_v by_o the_o severity_n wherewith_o i_o have_v know_v eminent_a virtuoso_n speak_v of_o his_o attempt_n and_o particular_o of_o his_o funiculus_fw-la to_o fear_v that_o some_o of_o those_o he_o have_v needless_o oppose_v will_v be_v apt_a to_o apply_v to_o he_o that_o of_o st._n austin_n against_o some_o of_o his_o adversary_n that_o have_v dispute_v against_o he_o with_o much_o more_o subtlety_n than_o reason_n in_o mala_fw-la causa_fw-la non_fw-la possunt_fw-la aliter_fw-la at_o malam_fw-la causam_fw-la quis_fw-la eos_fw-la coegit_fw-la habere_fw-la but_o this_o notwithstanding_o i_o be_o as_o i_o be_v go_v to_o say_v content_a my_o adversary_n shall_v be_v think_v to_o have_v say_v for_o his_o principle_n as_o much_o as_o the_o subject_n will_v bear_v nor_o will_v i_o have_v it_o make_v his_o disparagement_n that_o i_o have_v declare_v that_o his_o whole_a book_n have_v not_o make_v i_o depart_v from_o any_o of_o my_o opinion_n or_o explication_n since_o his_o hypothesis_n and_o i_o be_v inconsistent_a it_o may_v be_v look_v upon_o as_o a_o sign_n rather_o that_o each_o of_o we_o have_v than_o that_o either_o of_o we_o have_v not_o reason_v close_o to_o his_o own_o principle_n that_o the_o thing_n we_o infer_v from_o our_o contrary_a supposition_n do_v so_o general_o disagree_v finis_fw-la a_o explication_n of_o rarefaction_n the_o chief_a argument_n of_o the_o author_n of_o a_o certain_a treatise_n de_fw-fr corporum_fw-la inseparabilitate_fw-la whereby_o he_o endeavour_v to_o invalidate_v the_o hypothesis_n of_o the_o weight_n and_o spring_n of_o the_o air_n and_o to_o set_v up_o and_o establish_v instead_o thereof_o a_o unintelligible_a hypothesis_n of_o attraction_n perform_v by_o i_o know_v not_o what_o strange_a imaginary_a funiculus_fw-la be_v only_o five_o two_o against_o the_o former_a and_o three_o for_o the_o late_a the_o first_o of_o which_o be_v that_o the_o weight_n and_o spring_n of_o the_o air_n be_v not_o sufficient_a to_o perform_v the_o effect_n ascribe_v to_o they_o the_o second_o that_o can_v they_o be_v perform_v by_o that_o hypothesis_n grant_v yet_o the_o way_n of_o this_o strange_a spring_n itself_o be_v not_o intelligible_o explain_v or_o explicable_a by_o the_o defender_n of_o it_o now_o the_o former_a of_o these_o be_v little_a else_o but_o a_o bare_a affirmation_n and_o the_o late_a bear_v some_o show_n of_o demonstration_n i_o shall_v endeavour_v to_o examine_v it_o as_o i_o find_v it_o set_v down_o in_o his_o 20_o 21_o 22_o 23_o and_o 24_o chapter_n to_o which_o especial_o the_o 23_o he_o very_o often_o in_o his_o book_n refer_v the_o reader_n for_o satisfaction_n pretend_v there_o to_o evince_v that_o rarefaction_n can_v be_v make_v out_o any_o otherwise_o than_o by_o suppose_v a_o body_n to_o be_v in_o 2_o 3_o 4_o 10_o 100_o 1000_o 1000000_o of_o place_n at_o the_o same_o instant_n and_o adequate_o to_o fill_v all_o and_o every_o one_o of_o those_o place_n first_o therefore_o we_o will_v examine_v his_o negative_a and_o next_o his_o affirmative_a argument_n for_o this_o strange_a hypothesis_n his_o negative_a i_o find_v in_o the_o 20_o chapter_n where_o he_o endeavour_v to_o confute_v the_o two_o way_n of_o explicate_v the_o rarefaction_n and_o spring_n of_o the_o air_n namely_o that_o of_o the_o vacuist_n and_o that_o of_o the_o plenist_n concern_v the_o first_o of_o these_o we_o find_v he_o conclude_v it_o impossible_a first_o because_o he_o have_v before_o prove_v that_o there_o can_v be_v no_o vacuum_n which_o be_v do_v by_o a_o circle_n viz._n there_o be_v no_o vacuum_n in_o the_o tube_n because_o nature_n abhor_v a_o vacuum_n and_o we_o see_v nature_n abhor_v a_o vacuum_n because_o she_o will_v not_o suffer_v a_o vacuum_n in_o the_o tube_n above_o the_o mercury_n but_o to_o prevent_v it_o will_v continual_o spin_v the_o quicksilver_n into_o superficies_n and_o never_o diminish_v the_o body_n of_o it_o will_v suffer_v i_o to_o pass_v to_o his_o next_o which_o be_v that_o this_o way_n be_v false_a because_o in_o the_o experiment_n of_o the_o carp'_v bladder_n the_o air_n be_v rarefy_a a_o 1000_o time_n big_a nay_o in_o respect_n of_o the_o body_n of_o gold_n it_o have_v 1000000_o time_n less_o matter_n in_o equal_a space_n and_o this_o say_v he_o be_v a_o phaenomenon_n that_o be_v impossible_a ever_o to_o be_v make_v out_o by_o interspersed_a vacuity_n now_o that_o the_o vacuist_n can_v present_o by_o so_o bold_a a_o assertion_n as_o this_o be_v make_v to_o forsake_v their_o principle_n he_o may_v perceive_v by_o these_o follow_a solution_n which_o i_o shall_v give_v of_o all_o the_o phaenomena_n he_o recite_v flow_v natural_o from_o a_o hypothesis_n that_o i_o shall_v for_o the_o present_a assume_v let_v we_o suppose_v then_o the_o particle_n of_o body_n at_o least_o those_o of_o the_o air_n to_o be_v of_o the_o form_n of_o a_o piece_n of_o ribond_n that_o be_v to_o be_v very_o long_o slender_a thin_a and_o flexible_a laminae_fw-la coyl_v or_o wind_v up_o together_o as_o a_o cable_n piece_n of_o ribond_n spring_n of_o a_o watch_n hoop_n or_o the_o like_a be_v we_o will_v suppose_v these_o to_o have_v all_o of_o they_o the_o same_o length_n but_o some_o to_o have_v a_o strong_a other_o a_o weak_a spring_n we_o will_v further_o suppose_v each_o of_o these_o so_o coyl_v up_o to_o have_v such_o a_o innate_a circular_a motion_n as_o that_o thereby_o they_o may_v describe_v a_o sphere_n equal_a in_o diameter_n to_o their_o own_o much_o after_o the_o manner_n that_o a_o meridian_n turn_v about_o the_o pole_n of_o a_o globe_n will_v describe_v by_o its_o revolution_n a_o sphere_n of_o the_o same_o diameter_n with_o its_o own_o in_o the_o air._n by_o this_o circular_a motion_n the_o part_n of_o the_o laminae_fw-la endeavour_v to_o recede_v from_o the_o centre_n or_o axis_n of_o their_o motion_n acquire_v a_o springiness_n outward_a like_o that_o of_o a_o watch-spring_n and_o will_v natural_o fly_v abroad_o until_o they_o be_v stretch_v out_o at_o length_n but_o that_o be_v encompass_v with_o the_o like_a on_o every_o side_n they_o can_v do_v it_o without_o the_o removal_n of_o they_o as_o not_o have_v room_n sufficient_a for_o such_o a_o motion_n and_o the_o fast_o this_o circular_a motion_n be_v the_o more_o do_v the_o part_n endeavour_v to_o recede_v from_o the_o axis_n and_o consequent_o the_o strong_a be_v their_o spring_n or_o endeavour_v outward_a these_o springy_a body_n thus_o shape_v and_o thus_o move_v be_v sufficient_a to_o produce_v all_o the_o phaenomena_n he_o name_v as_o impossible_a to_o be_v explicate_v and_o first_o for_o the_o business_n of_o expansion_n it_o
drive_v out_o into_o the_o open_a air._n and_o thus_o by_o the_o repetition_n of_o the_o motion_n of_o the_o sucker_n upward_o and_o downward_o and_o by_o opportune_o turn_v the_o key_n and_o stop_v the_o valve_n as_o occasion_n require_v more_o or_o less_o air_n may_v be_v suck_v out_o of_o the_o receiver_n according_a to_o the_o exigency_n of_o the_o experiment_n and_o the_o intention_n of_o he_o that_o make_v it_o your_o lordship_n will_v perhaps_o think_v that_o i_o have_v be_v unnecessary_o prolix_a in_o this_o first_o part_n of_o my_o discourse_n but_o if_o you_o have_v see_v how_o many_o unexpected_a difficulty_n we_o find_v to_o keep_v out_o the_o external_a air_n even_o for_o a_o little_a while_n when_o some_o considerable_a part_n of_o the_o internal_a have_v be_v suck_v out_o you_o will_v peradventure_o allow_v that_o i_o may_v have_v set_v down_o more_o circumstance_n than_o i_o have_v without_o set_v down_o any_o who_o knowledge_n he_o that_o shall_v try_v the_o experiment_n may_v not_o have_v need_n of_o which_o be_v so_o true_a that_o before_o we_o proceed_v any_o further_a i_o can_v think_v it_o unseasonable_a to_o advertise_v your_o lordship_n that_o there_o be_v two_o chief_a sort_n of_o experiment_n which_o we_o design_v in_o our_o engine_n to_o make_v trial_n of_o the_o one_o such_o as_o may_v be_v quick_o dispatch_v and_o therefore_o may_v be_v try_v in_o our_o engine_n though_o it_o leak_v a_o little_a because_o the_o air_n may_v be_v fast_o draw_v out_o by_o nimble_o ply_v the_o pump_n than_o it_o can_v get_v in_o at_o undiscerned_a leak_n i_o say_v at_o undiscerned_a leak_n because_o such_o as_o be_v big_a enough_o to_o be_v discover_v can_v scarce_o be_v uneasy_a to_o be_v stop_v the_o other_o sort_n of_o experiment_n consist_v of_o those_o that_o require_v not_o only_o that_o the_o internal_a air_n be_v draw_v out_o of_o the_o receiver_n but_o that_o it_o be_v likewise_o for_o a_o long_a time_n keep_v out_o of_o it_o such_o be_v the_o preservation_n of_o animal_n and_o other_o body_n therein_o the_o germination_n and_o growth_n of_o vegetable_n and_o other_o trial_n of_o several_a sort_n which_o it_o be_v apparent_a can_v be_v well_o make_v unless_o the_o external_a air_n can_v for_o a_o competent_a while_n be_v exclude_v since_o even_o at_o a_o very_a small_a leak_n there_o may_v enough_o get_v in_o to_o make_v the_o vacuum_n soon_o lose_v that_o name_n by_o which_o i_o here_o declare_v once_o for_o all_o that_o i_o understand_v not_o a_o space_n wherein_o there_o be_v no_o body_n at_o all_o but_o such_o as_o be_v either_o altogether_o or_o almost_o total_o devoid_a of_o air._n now_o this_o distinction_n of_o experiment_n i_o think_v fit_a to_o premise_v to_o the_o ensue_a narrative_n because_o upon_o trial_n we_o find_v it_o so_o exceed_v and_o scarce_o imaginable_o difficult_a a_o matter_n to_o keep_v out_o the_o air_n from_o get_v at_o all_o in_o at_o any_o imperceptible_a hole_n or_o flaw_n whatsoever_o in_o a_o vessel_n immediate_o surround_v with_o the_o compress_a atmosphere_n that_o in_o spite_n of_o all_o our_o care_n and_o diligence_n we_o never_o be_v able_a total_o to_o exhaust_v the_o receiver_n or_o keep_v it_o when_o it_o be_v almost_o empty_a any_o considerable_a time_n from_o leak_a more_o or_o less_o although_o as_o we_o have_v late_o intimate_v by_o unwearied_a quickness_n in_o ply_v the_o pump_n the_o internal_a air_n can_v be_v much_o fast_o draw_v out_o than_o the_o external_a can_v get_v in_o till_o the_o receiver_n come_v to_o be_v almost_o quite_o empty_a and_o that_o be_v enough_o to_o enable_v man_n to_o discover_v hitherto_o unobserved_a phaenomena_n of_o nature_n the_o experiment_n therefore_o of_o the_o first_o sort_n will_n i_o fear_v prove_v the_o only_a one_o wherewith_o my_o avocation_n will_v allow_v i_o to_o entertain_v your_o lordship_n in_o this_o letter_n for_o till_o your_o further_a command_n shall_v engage_v i_o to_o undertake_v by_o god_n permission_n such_o a_o employment_n and_o more_o leisure_n shall_v better_o fit_v i_o for_o it_o i_o know_v not_o whether_o i_o shall_v be_v in_o a_o condition_n to_o try_v what_o may_v be_v do_v to_o enable_v i_o to_o give_v you_o some_o account_n of_o the_o other_o sort_n of_o experiment_n also_o experiment_n i._n to_o proceed_v now_o to_o the_o phaenomena_n exhibit_v to_o we_o by_o the_o engine_n above_o describe_v i_o hold_v it_o not_o unfit_a to_o begin_v with_o what_o do_v constant_o and_o regular_o offer_v itself_o to_o our_o observation_n as_o depend_v upon_o the_o fabric_n of_o the_o engine_n itself_o and_o not_o upon_o the_o nature_n of_o this_o or_o that_o particular_a experiment_n which_o it_o be_v employ_v to_o try_v first_o then_o upon_o the_o draw_v down_o of_o the_o sucker_n the_o valve_n be_v shut_v the_o cylindrical_a space_n desert_v by_o the_o sucker_n be_v leave_v devoid_a of_o air_n and_o therefore_o upon_o the_o turn_n of_o the_o key_n the_o air_n contain_v in_o the_o receiver_n rush_v into_o the_o empty_v cylinder_n till_o the_o air_n in_o both_o those_o vessel_n be_v bring_v to_o about_o a_o equal_a measure_n of_o dilatation_n and_o therefore_o upon_o shut_v the_o receiver_n by_o re-turning_a the_o key_n if_o you_o open_v the_o valve_n and_o force_v up_o the_o sucker_n again_o you_o will_v find_v that_o after_o this_o first_o exsuction_n you_o will_v drive_v out_o almost_o a_o whole_a cylinder_n full_a of_o air_n but_o at_o the_o follow_a exsuction_n you_o will_v draw_v less_o and_o less_o of_o air_n out_o of_o the_o receiver_n into_o the_o cylinder_n because_o there_o will_v still_o remain_v less_o and_o less_o air_n in_o the_o receiver_n itself_o and_o consequent_o the_o particle_n of_o the_o remain_a air_n have_v more_o room_n to_o extend_v themselves_o in_o will_v less_o press_v out_o one_o another_o this_o you_o will_v easy_o perceive_v by_o find_v that_o you_o still_o force_v less_o and_o less_o air_n out_o of_o the_o cylinder_n so_o that_o when_o the_o receiver_n be_v almost_o exhaust_v you_o may_v force_v up_o the_o sucker_n almost_o to_o the_o top_n of_o the_o cylinder_n before_o you_o will_v need_v to_o unstop_v the_o valve_n to_o let_v out_o any_o air_n and_o if_o at_o such_o time_n the_o valve_n be_v shut_v you_o let_v go_v the_o handle_n of_o the_o pump_n you_o will_v find_v the_o sucker_n forcible_o carry_v up_o to_o the_o top_n of_o the_o cylinder_n by_o the_o protrusion_n of_o the_o external_a air_n which_o be_v much_o less_o rarify_v than_o that_o within_o the_o cylinder_n must_v have_v a_o more_o forcible_a pressure_n upon_o the_o sucker_n than_o the_o internal_a be_v able_a to_o resist_v and_o by_o this_o mean_v you_o may_v know_v how_o far_o you_o have_v empty_v the_o receiver_n and_o to_o this_o we_o may_v add_v on_o this_o occasion_n that_o constant_o upon_o the_o turn_n of_o the_o key_n to_o let_v out_o the_o air_n from_o the_o receiver_n into_o the_o empty_v cylinder_n there_o be_v immediate_o produce_v a_o considerable_o brisk_a noise_n especial_o whilst_o there_o be_v any_o plenty_n of_o air_n in_o the_o receiver_n for_o the_o more_o easy_a understanding_n of_o the_o experiment_n triable_a by_o our_o engine_n i_o think_v it_o not_o superfluous_a nor_o unseasonable_a in_o the_o recital_n of_o this_o first_o of_o they_o to_o insinuate_v that_o notion_n by_o which_o it_o seem_v likely_a that_o most_o if_o not_o all_o of_o they_o will_v prove_v explicable_a your_o lordship_n will_v easy_o suppose_v that_o the_o notion_n i_o speak_v of_o be_v that_o there_o be_v a_o spring_n or_o elastical_a power_n in_o the_o air_n we_o live_v in_o by_o which_o 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d or_o spring_n of_o the_o air_n that_o which_o i_o mean_v be_v this_o that_o our_o air_n either_o consist_v of_o or_o at_o least_o abound_v with_o part_n of_o such_o a_o nature_n that_o in_o case_n they_o be_v bend_v or_o compress_v by_o the_o weight_n of_o the_o incumbent_a part_n of_o the_o atmosphere_n 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look_v back_o to_o it_o and_o take_v notice_n of_o what_o i_o find_v there_o against_o the_o vacuist_n for_o though_o i_o neither_o be_o bind_v nor_o intend_v in_o this_o discourse_n to_o declare_v myself_o for_o or_o against_o a_o vacuum_n yet_o since_o i_o be_o now_o write_v against_o the_o funicular_a hypothesis_n it_o will_v much_o conduce_v to_o show_v that_o it_o be_v not_o firm_o ground_v if_o i_o examine_v what_o he_o here_o allege_v against_o the_o assertor_n of_o a_o vacuum_n in_o the_o next_o place_n therefore_o i_o consider_v that_o according_a to_o the_o examiner_n there_o can_v be_v no_o vacuum_n and_o that_o he_o make_v to_o be_v the_o main_a reason_n why_o nature_n in_o the_o torricellian_a and_o our_o experiment_n do_v act_n after_o so_o extraordinary_a a_o manner_n as_o be_v requisite_a to_o the_o production_n of_o his_o funiculus_fw-la for_o in_o the_o 47_o the_o page_z have_v in_o his_o adversary_n name_v demand_v what_o need_n there_o be_v at_o the_o descent_n of_o the_o quicksilver_n that_o before_o it_o fall_v a_o superficies_n shall_v be_v separate_v from_o it_o and_o extend_v respondeo_fw-la say_v he_o ideo_fw-la hoc_fw-la fieri_fw-la ne_fw-la detur_fw-la vacuum_fw-la cum_fw-la nihil_fw-la aliud_fw-la ibi_fw-la adsit_fw-la quod_fw-la loco_fw-la argenti_fw-la descendentis_fw-la possit_fw-la succedere_fw-la to_o which_o he_o immediate_o subjoin_v with_o what_o cogency_n i_o will_v not_o now_o examine_v atque_fw-la hinc_fw-la plane_n confirmatur_fw-la common_a illud_fw-la per_fw-la tot_fw-la jam_fw-la elapsa_fw-la secula_fw-la usurpatum_fw-la in_o scholis_fw-la axioma_fw-la viz._n naturam_fw-la à _fw-la vacuo_fw-la abhorrere_fw-la and_o though_o he_o seem_v to_o make_v his_o funiculus_fw-la the_o immediate_a cause_n of_o the_o phaenomena_n occur_v in_o the_o torricellian_a and_o our_o experiment_n yet_o that_o if_o you_o pursue_v the_o inquiry_n a_o little_a high_o he_o resolve_v they_o into_o nature_n abhorrency_n of_o a_o vacuum_n himself_o plain_o inform_v we_o in_o the_o next_o page_n nam_fw-la licet_fw-la say_v he_o immediata_fw-la ratio_fw-la cur_n aqua_fw-la v._n g._n ex_fw-la hydria_fw-la hortulana_fw-la superne_fw-la clausa_fw-la quo_fw-la exemplo_fw-la utuntur_fw-la non_fw-la descendat_fw-la non_fw-la sit_fw-la metus_fw-la va_fw-fr vi_o 48._o sed_fw-la ea_fw-la quam_fw-la modo_fw-la diximus_fw-la nempe_fw-la quod_fw-la non_fw-la detur_fw-la sufficiens_fw-la pondus_fw-la ad_fw-la solvendum_fw-la illum_fw-la nexum_fw-la quo_fw-la adhaereat_fw-la aqua_fw-la clausae_fw-la hydriae_fw-la summitati_fw-la ad_fw-la eam_fw-la tamen_fw-la rationem_fw-la tandem_fw-la necessario_fw-la veniendum_fw-la est_fw-la but_o though_o as_o well_o our_o author_n be_v funiculus_fw-la as_o the_o other_o scarce_o conceivable_a hypothesis_n that_o learn_v man_n have_v devise_v to_o account_v for_o the_o suspension_n of_o the_o quicksilver_n otherwise_o than_o by_o the_o resistance_n of_o the_o external_a air_n seem_v to_o have_v be_v 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room_n my_o appear_v full_a of_o the_o smoke_n of_o a_o perfume_n though_o if_o all_o the_o corpuscle_n that_o compose_v that_o smoke_n be_v reunite_v they_o will_v again_o make_v up_o but_o a_o small_a pastil_n to_o which_o purpose_n i_o remember_v i_o have_v take_v camphire_n of_o which_o a_o little_a will_v fill_v a_o room_n with_o its_o odour_n and_o have_v in_o well-closed_a distillatory_n glass_n catch_v the_o fume_n drive_v over_o by_o heat_n i_o thereby_o reduce_v they_o to_o reconjoyn_a into_o true_a camphire_n who_o bulk_n be_v very_o inconsiderable_a in_o comparison_n of_o the_o space_n it_o fill_v as_o to_o sense_n when_o the_o odorous_a corpuscle_n be_v scatter_v through_o the_o free_a air._n to_o which_o i_o may_v add_v that_o the_o torricellian_a experiment_n be_v make_v in_o a_o dark_a night_n or_o in_o a_o room_n perfect_o darken_a if_o it_o succeed_v as_o there_o be_v little_a cause_n to_o suspect_v it_o will_v not_o it_o may_v well_o be_v doubt_v whether_o our_o 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gross_a aërial_a particle_n that_o appear_v necessary_a to_o convey_v a_o languid_a sound_n be_v draw_v out_o of_o our_o receiver_n at_o the_o first_o and_o second_o exsuction_n yet_o there_o remain_v so_o many_o of_o the_o like_a corpuscle_n that_o those_o that_o be_v want_v be_v not_o miss_v by_o the_o sense_n though_o afterward_o when_o a_o far_o great_a number_n be_v draw_v out_o they_o be_v so_o there_o may_v be_v matter_n enough_o remain_v to_o transmit_v the_o impulse_n of_o light_n though_o betwixt_o the_o particle_n of_o that_o matter_n there_o shall_v be_v store_n of_o vacuity_n intercept_v whereas_o our_o author_n pretend_v to_o prove_v not_o only_o that_o there_o be_v no_o coacervate_a vacuity_n in_o the_o space_n so_o often_o mention_v but_o absolute_o that_o there_o be_v none_o for_o it_o be_v in_o this_o last_o sense_n as_o well_o as_o the_o other_o that_o the_o school_n and_o our_o author_n who_o defend_v their_o opinion_n deny_v a_o vacuum_n but_o notwithstanding_o 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lift_v up_o that_o too_o and_o sustain_v it_o aloft_o in_o the_o free_a air._n the_o conjecture_n itself_o be_v in_o the_o same_o page_n thus_o set_v down_o that_o the_o low_a superficies_n of_o that_o undermost_a stone_n be_v free_o expose_v to_o the_o air_n be_v press_v 6._o upon_o by_o it_o whereas_o the_o uppermost_a surface_n be_v contiguous_a to_o the_o superior_a stone_n be_v thereby_o defend_v from_o the_o pressure_n of_o the_o air_n which_o consequent_o press_v the_o low_a stone_n against_o the_o upper_a hinder_v it_o from_o fall_v as_o we_o have_v elsewhere_o more_o full_o declare_v which_o last_o word_n i_o therefore_o omit_v not_o because_o they_o show_v that_o i_o handle_v this_o matter_n in_o this_o place_n but_o incidental_o and_o may_v make_v use_n of_o what_o i_o have_v deliver_v where_o i_o treat_v of_o it_o more_o express_o as_o i_o have_v since_o do_v in_o print_n in_o the_o history_n of_o fluidity_n and_o firmness_n which_o mr._n hobbs_n appear_v to_o have_v see_v 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si_fw-la duorum_fw-la cohaerentium_fw-la alterutrum_fw-la secundum_fw-la eam_fw-la viam_fw-la in_o qua_fw-la jacent_fw-la ipsae_fw-la contiguae_fw-la superficies_n propulsum_fw-la esset_fw-la facile_fw-la separarentur_fw-la aëre_fw-la proximo_fw-la in_o locum_fw-la relictum_fw-la successiuè_fw-la semper_fw-la influente_fw-la sed_fw-la illa_fw-la ita_fw-la divellere_fw-la ut_fw-la simul_fw-la totum_fw-la amitterent_fw-la contactum_fw-la impossibile_fw-it est_fw-la mundo_fw-la pleno_fw-la oporteret_fw-la enim_fw-la aut_fw-la motum_fw-la fieri_fw-la ab_fw-la uno_fw-la termino_fw-la ad_fw-la alium_fw-la in_fw-la instant_n aut_fw-la duo_fw-la corpora_fw-la eodem_fw-la tempore_fw-la in_o eodem_fw-la esse_fw-la loco_fw-la quorum_fw-la utrumvis_fw-la dicere_fw-la est_fw-la absurdum_fw-la but_o how_o this_o shall_v be_v so_o cogent_a and_o manifest_a a_o argument_n against_o the_o vacuist_n i_o confess_v i_o do_v not_o well_o discern_v for_o that_o which_o it_o prove_v if_o it_o prove_v any_o thing_n seem_v to_o be_v that_o in_o case_n the_o cohere_a marble_n can_v be_v so_o sever_v as_o to_o lose_v at_o once_o their_o whole_a contact_n the_o world_n may_v be_v conclude_v not_o to_o be_v full_a but_o i_o see_v not_o how_o it_o thence_o follow_v that_o therefore_o there_o can_v be_v no_o vacuum_n for_o my_o part_n i_o will_v demand_v whether_o the_o so_o strong_a cohesion_n of_o the_o marble_n be_v necessary_a or_o not_o to_o the_o plenitude_n of_o the_o world_n if_o it_o be_v how_o chance_v a_o sufficient_a weight_n hang_v to_o the_o low_a marble_n can_v immediatley_o draw_v they_o asunder_o and_o if_o it_o be_v not_o why_o do_v not_o mr._n hobbs_n assign_v some_o other_o cause_n of_o their_o so_o strong_a adhesion_n if_o it_o depend_v neither_o upon_o the_o spring_n nor_o weight_n of_o the_o air_n as_o for_o the_o non-separation_n of_o the_o two_o marble_n in_o our_o receiver_n i_o have_v say_v in_o the_o same_o 31._o experiment_n that_o the_o cause_n may_v probable_o be_v the_o pressure_n of_o the_o air_n remain_v in_o the_o receiver_n not_o sufficient_o exhaust_v and_o this_o conjecture_n i_o have_v more_o full_o defend_v in_o what_o i_o have_v write_v about_o it_o against_o franciscus_n linus_n where_o i_o show_v that_o it_o be_v no_o way_n unlikely_a the_o remain_a air_n shall_v be_v able_a to_o sustain_v a_o weight_n of_o four_o or_o five_o ounce_n hang_v at_o the_o low_a marble_n since_o the_o free_a air_n be_v able_a to_o support_v between_o 400._o and_o 500_o ounce_n hang_v at_o the_o same_o but_o mr._n hobbs_n tell_v we_o that_o the_o cause_n i_o assign_v of_o the_o cohesion_n of_o our_o marble_n be_v liable_a to_o huge_a inconvenience_n of_o the_o greatness_n of_o which_o we_o may_v judge_v by_o the_o first_o of_o they_o confitentur_fw-la say_v he_o tum_fw-la ipsi_fw-la tum_fw-la alii_fw-la omnes_fw-la ponderationem_fw-la omnem_fw-la conatum_fw-la esse_fw-la per_fw-la lineas_fw-la rectas_fw-la undiquaque_fw-la ad_fw-la 20._o centrum_fw-la terrae_fw-la &_o proinde_fw-la non_fw-la cylindrum_fw-la vel_fw-la columnam_fw-la fieri_fw-la sed_fw-la per_fw-la pyramidem_fw-la cujus_fw-la vertex_fw-la est_fw-la centrum_fw-la terrae_fw-la basis_n pars_fw-la superficiei_fw-la atmosphaerae_fw-la as_o if_o it_o be_v much_o material_a whether_o a_o body_n who_o basis_n be_v scarce_o two_o inch_n diameter_n and_o who_o length_n amount_v to_o some_o thousand_o of_o miles_n be_v consider_v as_o a_o cylinder_n or_o a_o pyramid_n certain_o stevinus_n and_o other_o learned_a writer_n of_o the_o hydrostaticks_n will_v scarce_o have_v make_v this_o a_o objection_n since_o they_o scruple_n not_o to_o make_v it_o a_o postulatum_fw-la that_o all_o not_o very_o distant_a perpendicular_o be_v look_v upon_o as_o parallel_v though_o they_o allow_v such_o perpendicular_o will_v meet_v in_o the_o centre_n of_o the_o earth_n what_o he_o add_v partly_o in_o these_o word_n conatus_fw-la ergo_fw-la punctorum_fw-la omnium_fw-la ponderantium_fw-la propagabitur_fw-la ad_fw-la superficiem_fw-la marmoris_fw-la superioris_fw-la 20._o antequam_fw-la possit_fw-la propagari_fw-la ulterius_fw-la puta_fw-la ad_fw-la terram_fw-la and_o partly_o in_o the_o follow_a line_n to_o prove_v that_o the_o whole_a endeavour_n of_o the_o pyramid_n that_o lean_v upon_o the_o upper_a marble_n be_v terminate_v there_o and_o that_o there_o be_v no_o endeavour_n of_o the_o atmosphere_n against_o the_o under-superficies_n of_o the_o lowermost_a marble_n this_o ratiocination_n seem_v ground_v partly_o upon_o a_o conceit_n of_o he_o about_o the_o nature_n of_o gravity_n according_a to_o which_o i_o see_v not_o why_o any_o body_n place_v between_o the_o side_n of_o that_o pyramid_n or_o rather_o cone_n whereof_o the_o upper-superficies_n of_o the_o high_a marble_n be_v the_o basis_n shall_v descend_v upon_o the_o account_n of_o gravity_n and_o partly_o from_o a_o mistake_n of_o my_o opinion_n for_o i_o do_v no_o where_o that_o i_o know_v of_o speak_v as_o if_o i_o think_v this_o sustentation_n of_o the_o low_a marble_n be_v perform_v by_o little_a globule_n or_o other_o minute_n body_n protrude_a one_o another_o direct_o towards_o the_o centre_n of_o the_o earth_n and_o rebound_v from_o a_o perfect_o smooth_a superficies_n nor_o need_v i_o say_v that_o the_o low_a stone_n be_v sustain_v by_o the_o pressure_n of_o the_o selfsame_a pillar_n of_o the_o atmosphere_n that_o be_v incumbent_n on_o the_o upper_a since_o other_o part_n of_o the_o atmosphere_n some_o on_o the_o one_o hand_n and_o some_o on_o the_o other_o press_v oblique_o upon_o the_o uneven_a surface_n of_o the_o earth_n may_v have_v their_o pressure_n upward_o terminate_v against_o the_o low_a surface_n of_o the_o undermost_a marble_n and_o in_o the_o mention_a history_n of_o fluidity_n and_o firmness_n speak_v pag._n 187._o of_o the_o adhesion_n of_o flat_a glass_n and_o the_o reason_n be_v the_o same_o in_o our_o flat_a marble_n i_o plain_o deduce_v it_o from_o the_o pressure_n of_o the_o fluid_a air_n which_o like_o a_o liquor_n diffuse_v itself_o upon_o the_o surface_n of_o the_o terrestrial_a globe_n because_o its_o descent_n be_v there_o resist_v do_v like_o water_n and_o other_o liquor_n press_v almost_o equal_o every_o way_n and_o strong_o endeavour_v to_o thrust_v away_o any_o body_n against_o which_o it_o can_v bear_v so_o that_o wherever_o the_o pressure_n be_v take_v off_o from_o one_o part_n of_o a_o body_n and_o not_o from_o the_o opposite_a that_o body_n will_v be_v press_v towards_o that_o part_n whether_o it_o be_v downward_o or_o sideward_n or_o upward_o where_o that_o formerly-equal_a resistance_n be_v remove_v and_o this_o explication_n i_o do_v in_o that_o discourse_n back_o with_o consideration_n and_o experiment_n which_o mr._n hobbs_n be_v not_o please_v to_o take_v any_o notice_n of_o wherefore_o i_o hold_v it_o not_o amiss_o to_o add_v here_o two_o or_o three_o other_o experiment_n to_o one_o of_o those_o mention_v there_o first_o then_o a_o aeolipile_n be_v by_o heat_n free_v from_o air_n as_o much_o as_o you_o can_v if_o the_o little_a hole_n at_o the_o extremity_n of_o the_o neck_n by_o which_o the_o air_n get_v in_o and_o out_o be_v present_o and_o careful_o stop_v
his_o explication_n and_o i_o be_o not_o oblige_v to_o do_v so_o i_o shall_v only_o take_v notice_n of_o what_o our_o author_n object_n to_o prove_v that_o this_o phaenomenon_n can_v be_v solve_v by_o the_o spring_n of_o the_o air_n in_o these_o word_n b._n curio_n non_fw-la potest_fw-la aqua_fw-la quae_fw-la cum_fw-la injiceretur_fw-la particulas_fw-la aëris_fw-la comprimebat_fw-la ab_fw-la iisdem_fw-la particulis_fw-la se_fw-la explicantibus_fw-la 24._o rursus_fw-la rejici_fw-la a._n quia_fw-la locum_fw-la explicatae_fw-la majorem_fw-la non_fw-la requirunt_fw-la quam_fw-la compressae_fw-la quemadmodum_fw-la in_o vase_n aqua_fw-la pleno_fw-la in_fw-la qua_fw-la esset_fw-la multitudo_fw-la anguillarum_fw-la anguillas_fw-la sive_fw-la in_o se_fw-la volutas_fw-la sive_fw-la explicatas_fw-la idem_fw-la semper_fw-la capit_fw-la locum_fw-la propellere_fw-la ergo_fw-la aquam_fw-la per_fw-la vim_o elasticam_fw-la quae_fw-la alia_fw-la non_fw-la est_fw-la quam_fw-la motus_fw-la corporum_fw-la se_fw-la explicantium_fw-la non_fw-la possunt_fw-la b._n comparatio_fw-la illa_fw-la aëris_fw-la cum_fw-la aqua_fw-la anguillis_fw-la plena_fw-la nostris_fw-la credo_fw-la non_fw-la displicebit_fw-la but_o the_o elaterist_n will_v answer_v that_o neither_o can_v his_o earthly_a atom_n to_o who_o he_o ascribe_v the_o rejection_n of_o the_o water_n force_v in_o true_o fill_v up_o more_o part_n of_o space_n at_o one_o time_n than_o at_o another_o and_o therefore_o the_o objection_n may_v have_v be_v spare_v but_o indeed_o it_o reach_v we_o not_o for_o we_o as_o mr._n hobbs_n know_v well_o be_v not_o wont_a to_o compare_v the_o air_n to_o eel_n but_o to_o wool_n and_o though_o each_o hair_n that_o make_v up_o a_o compress_v lock_n of_o wool_n do_v not_o real_o fill_v more_o space_n with_o wool_n when_o extend_v than_o when_o crumple_v yet_o when_o there_o be_v a_o congery_n of_o these_o hair_n compress_v together_o the_o whole_a fleece_n or_o congery_n do_v by_o its_o spring_n endeavour_v to_o thrust_v away_o those_o contiguous_a body_n by_o which_o it_o be_v pen_v up_o as_o i_o have_v more_o full_o explain_v in_o my_o epistle_n so_o that_o these_o aerial_a corpuscle_n be_v pen_v up_o by_o the_o water_n force_v into_o the_o glass_n still_o endeavour_v to_o expand_v themselves_o by_o throw_v it_o out_o what_o our_o author_n add_v in_o the_o same_o page_n as_o if_o they_o be_v mistake_v that_o think_v the_o experiment_n of_o the_o plenist_n tend_v especial_o till_o of_o late_a to_o prove_v that_o the_o generality_n of_o they_o do_v not_o always_o mean_a by_o a_o vacuum_n a_o space_n perfect_o devoid_a of_o all_o corporeal_a substance_n but_o any_o space_n here_o below_o that_o be_v not_o fill_v with_o a_o visible_a body_n or_o at_o least_o with_o air_n for_o these_o be_v my_o word_n to_o which_o i_o suppose_v mr._n hobbs_n allude_v to_o this_o i_o say_v it_o be_v scarce_o worth_a while_n to_o make_v answer_n the_o controversy_n be_v of_o such_o small_a moment_n though_o i_o think_v i_o can_v easy_o enough_o do_v it_o especial_o since_o he_o rather_o excuse_v those_o that_o may_v have_v negligent_o express_v themselves_o than_o disprove_v what_o i_o say_v and_o since_o i_o speak_v chief_o and_o by_o name_n of_o the_o peripatetic_a school_n he_o may_v well_o allow_v that_o their_o expression_n concern_v this_o matter_n be_v not_o always_o so_o accurate_a whilst_o in_o this_o very_a passage_n he_o conclude_v with_o these_o word_n vides_fw-la quam_fw-la ineptum_fw-la sit_fw-la ad_fw-la explicationem_fw-la effectuum_fw-la talium_fw-la advocare_fw-la verba_fw-la metaphorica_fw-la ut_fw-la fugam_fw-la vacui_fw-la horrorem_fw-la naturae_fw-la etc._n etc._n 25._o quibus_fw-la olim_fw-la ad_fw-la existimationem_fw-la svam_fw-la tuendam_fw-la usae_fw-la sunt_fw-la scholae_fw-la nor_o be_v what_o he_o add_v concern_v the_o vacuum_n to_o be_v attribute_v to_o democritus_n and_o epicurus_n either_o clear_a enough_o or_o of_o concernment_n enough_o to_o our_o dispute_n to_o be_v insist_v on_o by_o we_o especial_o since_o i_o see_v not_o to_o what_o purpose_n he_o bring_v it_o in_o but_o there_o be_v in_o this_o page_n two_o particular_n which_o though_o they_o make_v little_a or_o nothing_o against_o what_o i_o say_v of_o the_o plenist_n may_v deserve_v to_o be_v take_v notice_n of_o the_o second_o for_o i_o think_v it_o expedient_a to_o dispatch_v that_o first_o be_v couch_v in_o these_o word_n in_o hydriis_fw-la perforatis_fw-la ideo_fw-la haeret_fw-la aqua_fw-la quia_fw-la quae_fw-la per_fw-la tantillum_fw-la foramen_fw-la exiturit_fw-la adeo_fw-la exigua_fw-la est_fw-la 25._o ut_fw-la non_fw-la posset_n ita_fw-la in_o longitudinem_fw-la se_fw-la diffundere_fw-la ut_fw-la descendendo_fw-la aditum_fw-la aëri_fw-la faciat_fw-la per_fw-la foraminum_fw-la circumferentias_fw-la neque_fw-la aër_fw-la ab_fw-la exeunte_fw-la aqua_fw-la pulsus_fw-la locum_fw-la alium_fw-la in_fw-la mundo_fw-la pleno_fw-la habere_fw-la potest_fw-la praeterquam_fw-la quem_fw-la aqua_fw-la deseret_fw-la but_o this_o experiment_n i_o have_v already_o examine_v as_o it_o be_v propose_v in_o his_o element_n of_o philosophy_n and_o therefore_o i_o shall_v now_o only_o say_v to_o the_o light_a variation_n i_o find_v of_o it_o here_o that_o the_o reason_n here_o assign_v why_o the_o water_n in_o gardener_n pot_n close_v at_o the_o top_n do_v not_o descend_v be_v not_o right_o assign_v since_o to_o omit_v other_o objection_n by_o monsieur_n paschall_n experiment_n it_o appear_v that_o though_o in_o pipe_n of_o no_o great_a length_n the_o water_n will_v not_o run_v out_o yet_o if_o the_o pipe_n be_v long_o enough_o though_o the_o orifice_n be_v no_o wide_o the_o water_n will_v descend_v without_o give_v passage_n to_o the_o air_n at_o the_o circumference_n of_o it_o but_o the_o other_o particular_a here_o mention_v by_o mr._n hobbs_n who_o thus_o propose_v it_o qui_fw-la per_fw-la fistulam_fw-la ore_fw-la aquam_fw-la sugit_fw-la aerem_fw-la medium_n prius_fw-la sugit_fw-la quo_fw-la distentum_fw-la aerem_fw-la externum_fw-la removet_fw-la qui_fw-la remotus_fw-la locum_fw-la in_fw-la pleno_fw-la habere_fw-la nisi_fw-la 25._o proximum_fw-la removendo_fw-la non_fw-la potest_fw-la &_o sic_fw-la continua_fw-la pulsione_n aqua_fw-la tandem_fw-la pellitur_fw-la in_o fistulam_fw-la succeditque_fw-la aeri_fw-la qui_fw-la exugitur_fw-la deserve_v a_o more_o particular_a consideration_n for_o this_o account_n of_o the_o ascension_n of_o liquor_n by_o suction_n be_v not_o only_o here_o give_v by_o mr._n hobbs_n but_o for_o the_o main_a by_o the_o learned_a gassendus_fw-la himself_n and_o other_o atomist_n and_o be_v general_o acquiesce_v in_o by_o the_o modern_a philosopher_n perhaps_o the_o rather_o because_o it_o seem_v not_o to_o establish_v or_o overthrow_v a_o vacuum_n but_o though_o i_o shall_v not_o deny_v but_o that_o many_o phaenomena_n of_o nature_n may_v be_v probable_o explicate_v by_o this_o propagation_n and_o return_n of_o motion_n yet_o there_o be_v some_o phaenomena_n here_o below_o which_o i_o see_v not_o how_o the_o cartesian_o or_o the_o atomist_n or_o mr._n hobbs_n can_v explicate_v without_o admit_v the_o spring_n of_o the_o air_n and_o which_o perhaps_o by_o the_o spring_n of_o the_o air_n may_v be_v explicate_v without_o the_o recur_v to_o such_o a_o propagation_n and_o return_n of_o impulse_n divers_a instance_n to_o this_o purpose_n i_o elsewhere_o consider_v but_o at_o present_a i_o shall_v propose_v only_o one_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 i_o take_v then_o a_o glass-vessel_n consist_v of_o two_o part_n the_o one_o be_v a_o vial_n capable_a of_o contain_v about_o a_o pound_n of_o water_n and_o the_o other_o a_o pipe_n open_a at_o both_o end_n the_o low_a of_o which_o reach_v within_o two_o inch_n of_o the_o bottom_n of_o the_o vial_n this_o pipe_n be_v by_o the_o glass-man_n fasten_v into_o the_o neck_n of_o the_o vial_n not_o by_o any_o cement_n lest_o it_o shall_v be_v pretend_v that_o the_o air_n may_v undiscerned_o get_v in_o or_o out_o but_o with_o melt_a glass_n of_o a_o good_a thickness_n into_o this_o vessel_n by_o the_o open_a pipe_n i_o at_o length_n for_o it_o be_v somewhat_o difficult_a pour_v water_n enough_o to_o swim_v a_o pretty_a way_n above_o the_o low_a extreme_a of_o the_o pipe_n and_o then_o often_o incline_v the_o vessel_n to_o give_v a_o free_a intercourse_n betwixt_o the_o air_n within_o the_o vial_n and_o that_o without_o it_o that_o if_o the_o internal_a air_n be_v compress_v by_o the_o affusion_n of_o the_o water_n it_o may_v free_v itself_o as_o it_o ready_o do_v by_o ascend_v in_o bubble_n along_o the_o incline_v pipe_n till_o the_o outward_a and_o inward_a air_n be_v reduce_v to_o a_o equality_n of_o pressure_n now_o if_o all_o suction_n be_v produce_v by_o the_o pressure_n of_o the_o air_n thrust_v away_o by_o the_o dilate_a chest_n of_o he_o that_o suck_v and_o so_o thrust_v the_o water_n or_o other_o liquor_n into_o the_o pipe_n at_o which_o he_o suck_v it_o seem_v evident_a in_o our_o case_n that_o the_o water_n will_v not_o ascend_v by_o suction_n since_o by_o the_o contrivance_n of_o the_o
that_o lean_a upon_o they_o and_o as_o for_o the_o easy_a yield_n of_o the_o air_n to_o the_o body_n that_o move_v in_o it_o if_o we_o consider_v that_o the_o corpuscle_n whereof_o it_o consist_v though_o of_o a_o springy_a nature_n be_v yet_o so_o very_o small_a as_o to_o make_v up_o which_o it_o be_v manifest_a they_o do_v a_o fluid_a body_n it_o will_v not_o be_v difficult_a to_o conceive_v that_o in_o the_o air_n as_o in_o other_o body_n that_o be_v fluid_a the_o little_a body_n it_o consist_v of_o be_v in_o a_o almost_o restless_a motion_n whereby_o they_o become_v as_o we_o have_v more_o full_o discourse_v in_o another_o treatise_n firmness_n very_o much_o dispose_v to_o yield_v to_o other_o body_n or_o easy_a to_o be_v displace_v by_o they_o and_o that_o the_o same_o corpuscle_n be_v likewise_o so_o various_o move_v as_o they_o be_v entire_a corpuscle_n that_o if_o some_o strive_v to_o push_v a_o body_n place_v among_o they_o towards_o the_o right_a hand_n for_o instance_n 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