than_o once_o answer_v which_o i_o think_v be_v do_v in_o my_o observation_n upon_o remark_n 17_o etc._n etc._n then_o he_o proceed_v to_o the_o argument_n touch_v rarefaction_n and_o the_o inconvenience_n of_o the_o penetration_n of_o dimension_n and_o so_o endeavour_v to_o prove_v repugnancy_n in_o what_o be_v say_v by_o a_o problem_n that_o deserve_v more_o discussion_n than_o the_o argument_n in_o hand_n as_o have_v be_v show_v in_o the_o begin_n of_o this_o book_n wherein_o i_o have_v nevertheless_o express_v my_o thought_n touch_v it_o i_o can_v tell_v what_o the_o remarker_n imagine_v or_o conceive_v against_o the_o cohesion_n of_o grosser_n body_n by_o the_o tension_n of_o light_a body_n but_o i_o can_v tell_v what_o be_v evident_a to_o my_o sense_n and_o so_o may_v any_o that_o will_v give_v his_o sense_n leave_v free_o to_o determine_v without_o stifle_v they_o by_o notion_n namely_o that_o there_o be_v as_o plain_a a_o cohesion_n in_o the_o magdeburgh_n hemisphere_n yea_o and_o in_o the_o torricellian_a engine_n as_o there_o be_v between_o thing_n fasten_v each_o to_o other_o by_o a_o string_n and_o therefore_o i_o can_v so_o over-ready_o change_v the_o conviction_n of_o my_o sense_n for_o a_o notion_n or_o conception_n assert_v and_o magnify_v but_o not_o prove_v but_o to_o infer_v that_o because_o water_n which_o be_v above_o 900_o time_n crasser_n than_o air_n be_v not_o compressible_a to_o a_o sensible_a small_a room_n by_o a_o great_a weight_n therefore_o a_o portion_n of_o subtle_a matter_n can_v be_v extract_v out_o of_o it_o or_o mercury_n with_o so_o small_a a_o weight_n as_o the_o mercurial_a cylinder_n or_o that_o the_o effluvia_fw-la of_o water_n or_o mercury_n which_o be_v as_o subtle_a as_o air_n can_v be_v expanded_a by_o a_o less_o weight_n than_o water_n compress_v into_o a_o sensible_a narrow_a room_n seem_v hard_a illation_n and_o very_o inconsequential_a for_o we_o see_v the_o heat_n of_o a_o man_n hand_n will_v expand_v air_n in_o weather-glass_n to_o near_a a_o double_a extension_n remark_n xxxiv_o i_o do_v prove_v the_o attraction_n of_o tensed_a body_n by_o the_o plain_a evidence_n of_o sense_n and_o i_o assign_v the_o preservation_n of_o the_o continuity_n of_o the_o universe_n as_o the_o end_n thereof_o and_o the_o supreme_a efficient_a cause_n thereof_o to_o be_v the_o most_o wise_a and_o powerful_a creator_n of_o all_o thing_n and_o the_o immediate_a effective_a cause_n that_o institute_v law_n that_o he_o have_v place_v in_o thing_n natural_a the_o immediate_a instrumental_a cause_n in_o many_o motion_n that_o be_v not_o primitive_a in_o their_o subject_n to_o be_v from_o the_o singular_a disposition_n of_o the_o part_n of_o the_o universe_n &_o their_o admirable_a mechanical_a adaptation_n each_o to_o other_o and_o as_o to_o the_o vicarious_a spirit_n of_o nature_n as_o a_o distinct_a incorporeal_a subsistence_n when_o the_o author_n have_v give_v we_o better_a proof_n thereof_o than_o the_o suspending_a of_o mercury_n in_o the_o torricellian_a experiment_n the_o drive_v up_o a_o rundle_n of_o light_a wood_n by_o the_o water_n and_o potentia_fw-la attractiva_fw-la of_o the_o embolus_fw-la of_o the_o air-pump_n and_o such_o like_a petty_a instance_n together_o with_o his_o bare_a notion_n touch_v it_o it_o may_v possible_o obtain_v a_o better_a entertainment_n than_o yet_o i_o find_v it_o do_v at_o least_o with_o i_o remark_n xxxv_o this_o instance_n in_o the_o bladder_n and_o cupping-glass_n be_v pass_v over_o in_o this_o remark_n very_o light_o and_o it_o be_v necessary_a so_o to_o be_v deal_v with_o because_o too_o troublesome_a to_o be_v explicate_v otherwise_o than_o by_o tension_n and_o attraction_n and_o it_o will_v require_v a_o admirable_a process_n in_o the_o hylarchical_a principle_n to_o effect_v this_o and_o some_o proof_n beside_o single_a notion_n and_o conception_n of_o such_o explication_n by_o such_o a_o principle_n remark_n xxxvi_o the_o instance_n here_o give_v have_v put_v the_o remarker_n to_o a_o great_a deal_n of_o pain_n to_o find_v a_o solution_n for_o it_o and_o the_o consequence_n of_o it_o for_o the_o hypothesis_n of_o attraction_n be_v confident_o say_v to_o be_v full_o confute_v though_o it_o be_v only_o so_o say_v but_o not_o so_o do_v but_o yet_o the_o hylarchical_a principle_n be_v at_o length_n furnish_v with_o a_o hylostatical_a libration_n and_o hylostatical_a power_n of_o union_n of_o the_o several_a part_n of_o water_n air_n and_o glass_n and_o at_o this_o rate_n i_o confess_v there_o will_v never_o want_v a_o ready_a solution_n to_o any_o difficulty_n for_o it_o be_v but_o assert_v that_o the_o spirit_n of_o nature_n be_v furnish_v with_o that_o effectual_a power_n and_o the_o knot_n be_v untie_v or_o cut_v though_o there_o be_v not_o a_o syllable_n of_o proof_n offer_v for_o it_o but_o it_o be_v only_o graff_v on_o to_o the_o hypothesis_n of_o the_o spirit_n of_o nature_n by_o the_o wit_n of_o the_o assertor_n to_o accommodate_v the_o hypothesis_n remark_n xxxvii_o i_o refer_v myself_o to_o what_o be_v say_v before_o in_o the_o first_o chapter_n of_o this_o book_n and_o upon_o the_o same_o remark_n there_o need_v not_o be_v say_v more_o the_o law_n of_o nature_n be_v the_o law_n of_o god_n imprint_v upon_o the_o nature_n of_o physical_a being_n by_o his_o almighty_a fiat_n and_o though_o as_o to_o particular_a being_n he_o have_v substitute_v particular_a active_a principle_n usual_o call_v essential_a and_o vital_a form_n yet_o as_o to_o the_o universe_n itself_o it_o seem_v to_o be_v too_o great_a a_o empire_n to_o be_v put_v into_o the_o vicariat_fw-la hand_n of_o that_o which_o be_v here_o call_v the_o spirit_n of_o nature_n the_o great_a god_n that_o give_v the_o law_n of_o nature_n be_v sufficient_a without_o such_o a_o substitute_n and_o be_v only_o sufficient_a for_o the_o regiment_n of_o so_o great_a a_o empire_n and_o this_o may_v serve_v also_o to_o remark_n 38._o we_o be_v not_o dispute_v whether_o such_o a_o spirit_n of_o nature_n be_v possible_a to_o be_v but_o whether_o the_o facto_fw-la it_o be_v or_o not_o or_o that_o it_o be_v necessary_a that_o it_o shall_v be_v at_o least_o as_o to_o those_o motion_n which_o have_v so_o evident_a explication_n from_o other_o principle_n remark_n thirty-nine_o herein_o we_o differ_v not_o as_o to_o the_o reject_v of_o the_o great_a elasticity_n of_o the_o air._n remark_n xl._o i_o confess_v when_o i_o read_v the_o beginning_n of_o this_o remark_n i_o hope_v to_o meet_v with_o such_o a_o solution_n to_o the_o instance_n remark_v upon_o as_o will_v be_v close_a and_o clear_a because_o this_o instance_n bear_v so_o hard_a against_o most_o of_o what_o the_o remarker_n have_v before_o affirm_v but_o i_o be_v deceive_v herein_o in_o this_o instance_n of_o the_o magdeburg_n hemisphere_n these_o thing_n be_v most_o evident_a to_o any_o man_n sense_n 1._o that_o the_o include_v air_n be_v certain_o expanded_a and_o rarefy_a by_o the_o heat_n beyond_o its_o natural_a size_n 2._o that_o while_o they_o be_v so_o hot_a and_o the_o air_n so_o expanded_a and_o lax_n they_o do_v not_o at_o all_o cohere_v 3._o that_o as_o they_o grow_v cold_a they_o do_v most_o evident_o cohere_v so_o that_o they_o will_v not_o be_v divulse_v without_o a_o considerable_a strength_n 4._o that_o most_o necessary_o as_o the_o include_v air_n grow_v cold_a and_o the_o heat_n which_o be_v the_o cause_n of_o its_o expansion_n decay_n so_o the_o air_n must_v needs_o endeavour_v its_o restitution_n to_o its_o natural_a dimension_n by_o contract_v itself_o inward_a to_o its_o natural_a size_n 5._o and_o yet_o if_o it_o have_v such_o a_o degree_n of_o heat_n as_o again_o give_v a_o more_o lax_n state_n to_o the_o include_v air_n the_o cohesion_n will_v cease_v and_o the_o hemisphere_n fall_v asunder_o 6._o and_o as_o the_o remarker_n confess_v and_o the_o most_o clear_a evidence_n of_o sense_n evince_v those_o phaenomena_n be_v not_o wrought_v nor_o indeed_o possible_a to_o be_v wrought_v either_o by_o the_o weight_n pressure_n or_o elasticity_n of_o the_o external_a air_n as_o the_o elaterist_n will_v have_v it_o the_o consequence_n of_o all_o which_o be_v that_o certain_o as_o far_o as_o sense_n can_v lead_v we_o the_o air_n be_v rarefy_v by_o the_o heat_n and_o as_o the_o heat_n decay_v the_o air_n endeavour_v its_o own_o contraction_n and_o there_o necessary_o follow_v even_o to_o our_o sense_n a_o attraction_n upon_o the_o side_n of_o the_o hemisphere_n whereby_o they_o cohere_v and_o that_o cohesion_n will_v continue_v till_o relax_v by_o another_o accession_n of_o heat_n or_o admission_n of_o more_o air._n but_o now_o what_o do_v the_o remark_n propound_v in_o this_o instance_n marry_o a_o hylostatical_a spirit_n which_o pro_fw-la re_fw-la nata_fw-la work_v these_o various_a phaenomena_n which_o be_v only_o a_o conjecture_n and_o have_v no_o evidence_n to_o prove_v it_o
a_o explication_n as_o real_o and_o in_o truth_n consist_v not_o with_o it_o as_o we_o shall_v see_v hereafter_o this_o be_v therefore_o the_o state_n of_o the_o notion_n of_o rarefaction_n and_o condensation_n in_o its_o true_a explication_n we_o be_v to_o consider_v what_o body_n or_o motion_n in_o body_n be_v such_o as_o be_v applicable_a to_o the_o argument_n in_o hand_n the_o special_a instance_n that_o i_o shall_v use_v be_v these_o 1._o the_o rarefaction_n or_o condensation_n of_o body_n by_o transmutation_n thus_o water_n by_o rarefaction_n be_v sometime_o change_v into_o air_n which_o have_v thereby_o a_o great_a extension_n than_o it_o have_v before_o by_o about_o 900_o time_n and_o air_n by_o condensation_n be_v change_v into_o water_n and_o thereby_o lose_v by_o contraction_n a_o like_a proportion_n of_o space_n than_o it_o have_v before_o thus_o aristotle_n in_o 4._o phys_n cap._n 9_o and_o the_o great_a verulam_n in_o historia_n densi_fw-la &_o rari_fw-la pag._n 88_o 2._o the_o rarefaction_n that_o be_v cause_v by_o external_a violence_n as_o in_o the_o air-pump_n in_o the_o cacabus_fw-la evacuatorius_fw-la and_o the_o magdeburg_n engine_n this_o be_v a_o rarefaction_n by_o tension_n whereby_o the_o air_n be_v dilate_v not_o only_o in_o its_o external_a bulk_n but_o in_o all_o the_o part_n of_o it_o and_o in_o its_o internal_a as_o well_o as_o external_a part_n and_o dimension_n and_o thus_o mersennus_n and_o other_o tell_v we_o air_n may_v be_v dilate_v to_o near_o 70_o time_n its_o former_a and_o natural_a extent_n 3._o the_o condensation_n that_o be_v make_v by_o compression_n some_o there_o be_v that_o think_v water_n be_v thus_o contractible_a and_o condensible_a by_o compression_n the_o same_o verulam_n ubi_fw-la supra_fw-la pag._n 99_o tell_v we_o that_o take_v a_o leaden_a hollow_a globe_n and_o fill_v it_o with_o water_n and_o then_o strong_o stop_v the_o orifice_n which_o take_v in_o the_o water_n and_o compress_v the_o globe_n in_o a_o strong_a presser_z whereby_o it_o may_v be_v reduce_v to_o a_o eight_o part_n of_o its_o former_a dimension_n the_o water_n will_v sustain_v that_o contraction_n but_o if_o it_o be_v press_v far_o the_o water_n will_v discharge_v itself_o through_o the_o globe_n ad_fw-la modum_fw-la parvi_fw-la imbris_fw-la it_o be_v not_o impossible_a but_o it_o may_v do_v so_o from_o its_o first_o compression_n though_o the_o stream_n by_o reason_n of_o their_o exility_n be_v imperceptible_a to_o the_o eye_n as_o the_o emanation_n of_o effluvia_fw-la through_o the_o pore_n of_o the_o body_n of_o animal_n electrical_a efflux_n or_o the_o odour_n of_o herb_n for_o water_n though_o fluid_a seem_v very_o impatient_a of_o condensation_n by_o compression_n yet_o it_o be_v not_o impossible_a if_o under_o a_o very_a strong_a pressure_n but_o to_o the_o very_a eye_n it_o appear_v capable_a of_o dilatation_n by_o tension_n in_o its_o discharge_n of_o itself_o by_o bubble_n upon_o a_o strong_a tension_n but_o howsoever_o it_o be_v with_o water_n it_o be_v apparent_a that_o air_n be_v capable_a of_o condensation_n and_o contraction_n by_o compression_n this_o appear_v visible_o in_o the_o compression_n of_o the_o air_n by_o wind-gun_n and_o the_o careful_a injection_n of_o water_n by_o a_o well_o order_v syringe_n in_o a_o empty_a aeolipile_n so_o that_o air_n by_o these_o mean_n may_v be_v contract_v into_o a_o seven_o nay_o possible_o a_o seventi_v part_n of_o its_o natural_a space_n or_o dimension_n 4._o the_o rarefaction_n and_o consequential_a dilatation_n of_o body_n by_o heat_n or_o fire_n thus_o water_n itself_o be_v rarefy_v and_o extend_v into_o vapour_n by_o heat_n the_o lord_n verulam_n ubi_fw-la supra_fw-la pag._n 28._o give_v we_o a_o notable_a instance_n by_o take_v a_o vial-glass_n hold_v a_o ounce_n fill_v it_o half_o full_a of_o spirit_n of_o wine_n then_o take_v a_o empty_a bladder_n that_o hold_v about_o 8_o pint_n and_o tie_v it_o about_o the_o neck_n of_o the_o vial_n strict_o the_o spirit_n of_o wine_n heat_v upon_o the_o coal_n the_o aura_n spiritus_fw-la vini_n fill_v the_o bladder_n and_o yet_o only_o six_o penny_n weight_n of_o the_o spirit_n of_o wine_n spend_v which_o do_v not_o amount_v to_o the_o 40th_o part_n of_o a_o pint_n yet_o fill_v the_o bladder_n of_o 8_o pint_n with_o its_o rarefy_v air._n and_o although_o this_o instance_n be_v in_o the_o spirit_n of_o wine_n which_o be_v full_a of_o subtle_a matter_n than_o the_o like_a quantity_n of_o water_n yet_o it_o will_v hold_v its_o proportion_n with_o the_o fume_n or_o vapour_n of_o water_n and_o of_o the_o like_a kind_n be_v the_o rarefaction_n by_o ignition_n in_o the_o gunpowder_n where_o a_o grain_n of_o gunpowder_n fire_v will_v expand_v above_o a_o thousand_o time_n its_o former_a dimension_n and_o more_o but_o that_o which_o be_v most_o obvious_a to_o sense_n and_o most_o apposite_a to_o my_o purpose_n and_o therefore_o will_v be_v the_o subject_a of_o most_o of_o my_o ensue_a application_n be_v the_o rarefaction_n of_o air_n by_o heat_n whereby_o it_o may_v gain_v a_o expansion_n of_o above_o 70_o time_n its_o natural_a size_n and_o dimension_n as_o be_v easy_o find_v by_o the_o strong_a heat_n of_o a_o strong_a brass_n concave_a globe_n which_o if_o the_o include_v air_n have_v no_o vent_n will_v break_v it_o and_o if_o it_o have_v a_o vent_n and_o after_o it_o be_v strong_o heat_v cast_v into_o a_o vessel_n of_o water_n it_o will_v soon_o discover_v the_o proportion_n of_o its_o dilatation_n by_o the_o contraction_n that_o it_o receive_v from_o the_o cold_a water_n and_o by_o the_o quantity_n of_o water_n it_o suck_v in_o upon_o that_o contraction_n 5._o the_o condensation_n and_o consequential_a contraction_n that_o the_o air_n receive_v by_o the_o constipation_n of_o it_o by_o cold_a especial_o after_o a_o strong_a dilatation_n but_o although_o there_o be_v no_o such_o precede_a dilatation_n or_o expansion_n of_o the_o air_n by_o heat_n yet_o it_o be_v visible_a in_o weather-glass_n and_o other_o engine_n of_o that_o nature_n that_o the_o air_n be_v contract_v in_o its_o dimension_n by_o the_o ambient_fw-la cold_a from_o what_o it_o usual_o have_v at_o other_o time_n chap._n v._o concern_v the_o phaenomena_n of_o rarefaction_n and_o condensation_n apparent_a to_o sense_n to_o pursue_v all_o the_o phaenomena_n of_o condensation_n and_o rarefaction_n in_o its_o full_a latitude_n be_v too_o long_o a_o business_n and_o not_o so_o much_o conducible_a to_o my_o purpose_n i_o shall_v therefore_o take_v up_o those_o phaenomena_n that_o be_v apparent_o evident_a to_o sense_n in_o the_o rarefaction_n and_o condensation_n of_o air_n for_o the_o due_a discussion_n of_o that_o single_a subject_n will_v give_v a_o estimate_n and_o explication_n of_o other_o rarefaction_n and_o condensation_n 1._o it_o be_v evident_a to_o our_o very_a sense_n that_o a_o small_a portion_n of_o air_n suppose_v a_o cubique_a foot_n in_o a_o vessel_n be_v ratify_v by_o heat_n will_v take_v up_o a_o far_o great_a space_n than_o it_o do_v before_o such_o application_n and_o the_o like_a will_v be_v when_o it_o be_v do_v by_o tension_n as_o in_o the_o air-pump_n and_o the_o magdeburg-engin_n for_o when_o a_o great_a part_n of_o the_o air_n be_v drive_v out_o by_o heat_n in_o the_o one_o instance_n and_o draw_v out_o by_o traction_n in_o the_o other_o yet_o it_o be_v evident_a to_o sense_n that_o the_o receiver_n or_o other_o vessel_n remain_v full_a of_o a_o very_a rare_a and_o extend_a air_n for_o sensible_o no_o other_o substance_n supply_v it_o 2._o it_o be_v evident_a to_o sense_n that_o this_o distension_n of_o the_o air_n be_v not_o only_o in_o the_o extima_fw-la superficies_n but_o in_o all_o the_o very_a internal_a part_n of_o it_o for_o it_o be_v apparent_a to_o our_o sense_n that_o it_o have_v a_o visible_a effect_n as_o well_o upon_o the_o bird_n water_n or_o other_o body_n place_v in_o the_o middle_n of_o the_o cavity_n of_o the_o receiver_n as_o in_o those_o that_o be_v conterminous_a to_o the_o side_n of_o it_o as_o appear_v in_o those_o many_o instance_n give_v by_o mr._n b._n especial_o in_o 21_o 22_o etc._n etc._n experiment_n and_o unless_o the_o whole_a body_n be_v extend_v every_o where_o and_o every_o way_n it_o be_v impossible_a that_o a_o little_a portion_n of_o air_n include_v in_o a_o bladder_n shall_v increase_v its_o bulk_n by_o heat_n to_o ten_o time_n its_o extension_n as_o it_o will_v do_v and_o be_v apparent_a to_o our_o sight_n by_o the_o ample_a distension_n of_o the_o bladder_n 3._o it_o be_v apparent_a to_o our_o sense_n that_o if_o the_o air_n be_v rarify_v by_o heat_n in_o any_o close_a vessel_n as_o the_o heat_n which_o be_v the_o cause_n of_o its_o rarefaction_n decay_n so_o the_o air_n endeavour_v its_o contraction_n to_o gain_v its_o primitive_a size_n which_o it_o then_o attain_v when_o the_o heat_n be_v
and_o mix_v itself_o with_o the_o include_v rarefy_v air_n as_o well_o as_o if_o a_o little_a air_n be_v let_v into_o it_o through_o a_o pin-hole_n 4._o in_o the_o instance_n last_o give_v and_o many_o other_o of_o like_a nature_n that_o may_v be_v give_v where_o the_o filament_n of_o the_o air_n in_o their_o relaxation_n from_o heat_n have_v a_o motion_n of_o contraction_n in_o themselves_o per_fw-la viam_fw-la restitutionis_fw-la and_o a_o consequential_a attraction_n on_o the_o vessel_n include_v they_o per_fw-la modum_fw-la nexus_fw-la it_o be_v impossible_a this_o can_v be_v salve_v by_o the_o supposition_n of_o the_o cartesian_o and_o lucretians_n which_o suppose_v the_o air_n to_o consist_v of_o minute_n particle_n only_o join_v together_o by_o contiguity_n for_o where_o there_o be_v only_a contiguity_n without_o continuity_n of_o part_n that_o body_n can_v never_o draw_v another_o body_n per_fw-la modum_fw-la tractionis_fw-la it_o will_v be_v real_o less_o tenacious_a than_o a_o rope_n of_o sand_n so_o that_o such_o a_o intromission_n of_o particle_n thus_o solute_a as_o they_o state_n most_o body_n to_o be_v by_o a_o bare_a contiguity_n of_o atom_n can_v never_o explicate_v this_o visible_a phaenomenon_n that_o ensue_v upon_o tension_n of_o the_o air_n or_o after_o the_o avolation_n or_o extinguishment_n of_o heat_n that_o first_o expanded_a it_o 5._o and_o as_o this_o supposition_n by_o no_o mean_n salve_n the_o phaenomena_n of_o rarefaction_n of_o the_o air_n and_o what_o ensue_v thereupon_o so_o it_o as_o little_a salve_n that_o of_o condensation_n or_o constipation_n of_o air_n by_o compression_n as_o we_o see_v in_o wind-gun_n and_o other_o engine_n which_o upon_o a_o discharge_v or_o a_o motion_n of_o that_o compression_n do_v with_o a_o force_n explode_v or_o discharge_v themselves_o and_o press_v very_o hard_o upon_o body_n that_o be_v in_o their_o way_n so_o that_o a_o windgun_n will_v drive_v a_o bullet_n through_o a_o pretty_a thick_a piece_n of_o wood_n which_o can_v never_o be_v if_o this_o solution_n of_o rarefaction_n and_o condensation_n be_v true_a 1._o if_o the_o air_n itself_o and_o also_o this_o subsidiary_n materia_fw-la subtilissima_fw-la be_v but_o a_o collection_n of_o minute_n body_n join_v only_o in_o contiguity_n one_o to_o another_o all_o the_o compression_n in_o the_o world_n will_v give_v it_o no_o more_o elasticity_n or_o that_o explosive_a motion_n than_o if_o a_o portion_n of_o calice-sand_n be_v force_v into_o a_o gun_n or_o other_o vessel_n with_o all_o the_o compression_n imaginable_a 2._o but_o again_o in_o that_o elastical_a explosion_n by_o the_o air_n compress_v into_o a_o narrow_a room_n what_o be_v it_o that_o actual_o exercise_v that_o explosive_a elasticity_n be_v it_o the_o subtle_a matter_n that_o be_v mingle_v with_o the_o include_v compress_v air_n sure_o no_o for_o according_a to_o this_o supposition_n that_o be_v squeeze_v out_o and_o permeate_v through_o the_o barrel_n or_o trunk_n of_o the_o windgun_n or_o be_v it_o the_o grosser_n particle_n of_o the_o air_n that_o be_v yet_o leave_v in_o the_o gun_n and_o can_v get_v out_o till_o the_o obturaculum_fw-la be_v remove_v but_o there_o be_v no_o reason_n for_o that_o to_o have_v any_o elasticity_n for_o by_o the_o avolation_n of_o the_o subtle_a matter_n there_o be_v room_n enough_o leave_v for_o it_o and_o under_o that_o narrow_a dimension_n that_o now_o it_o have_v yet_o have_v it_o as_o much_o room_n as_o before_o for_o the_o avolation_n of_o the_o materia_fw-la subtilis_fw-la have_v make_v a_o perfect_a room_n for_o it_o and_o leave_v it_o a_o space_n exact_o commensurate_a to_o its_o corporeal_a mole_n but_o it_o may_v be_v that_o the_o materia_fw-la subtilis_fw-la that_o be_v drive_v out_o by_o the_o compression_n now_o upon_o the_o aperture_n of_o the_o obturaculum_fw-la pervade_v the_o substance_n of_o the_o gun_n with_o that_o force_n that_o it_o give_v the_o explosion_n but_o it_o be_v apparent_a that_o neither_o this_o can_v help_v it_o for_o it_o do_v appear_v that_o the_o motion_n of_o the_o subtle_a matter_n into_o the_o orifice_n of_o the_o windgun_n upon_o the_o removal_n of_o the_o obturaculum_fw-la must_v needs_o run_v counter_a to_o the_o explosion_n of_o the_o air_n and_o obstruct_v it_o again_o it_o be_v apparent_a that_o the_o subtle_a matter_n be_v drive_v out_o gradual_o and_o with_o iterate_a force_n and_o it_o can_v pervade_v the_o iron_n side_n of_o the_o gun_n but_o gradual_o and_o with_o great_a strain_n and_o to_o imagine_v that_o in_o a_o moment_n the_o moment_n of_o a_o motion_n of_o the_o obturaculum_fw-la the_o whole_a body_n of_o that_o remove_a matter_n shall_v pervade_v the_o strong_a and_o close_a metal_n in_o a_o instant_n to_o give_v that_o strong_a and_o forcible_a explosion_n exceed_v all_o reason_n sense_n and_o credibility_n and_o therefore_o it_o be_v but_o necessary_a for_o those_o that_o will_v maintain_v this_o assertion_n to_o substitute_v a_o spirit_n of_o nature_n or_o a_o hylarchical_a principle_n which_o for_o the_o preservation_n of_o body_n in_o their_o due_a natural_a state_n and_o position_n shall_v act_v little_a less_o than_o miraculous_o to_o supply_v all_o these_o difficulty_n which_o yet_o notwithstanding_o must_v be_v suppose_v according_a to_o this_o supposition_n to_o act_v in_o contradiction_n to_o itself_o and_o nature_n also_o for_o when_o in_o rarefaction_n of_o body_n this_o spiritus_fw-la naturae_fw-la send_v supply_n of_o subtle_a matter_n to_o fill_v the_o interstitia_fw-la it_o must_v necessary_o rob_v other_o part_n of_o the_o air_n of_o some_o of_o that_o subtle_a matter_n that_o proper_o belong_v to_o its_o texture_n and_o natural_a constitution_n and_o so_o when_o one_o portion_n of_o matter_n be_v gratify_v another_o be_v impoverish_v of_o what_o belong_v to_o it_o which_o seem_v whole_o unsuitable_a to_o the_o office_n which_o this_o vicarious_a spirit_n of_o nature_n according_a to_o this_o new_a supposition_n be_v substitute_v to_o exercise_v chap._n ix_o touch_v the_o three_o supposition_n of_o the_o method_n of_o rarefaction_n and_o condensation_n according_a to_o the_o ancient_a philosophy_n and_o seem_v to_o be_v the_o true_a have_v examine_v the_o two_o former_a supposition_n and_o as_o near_o as_o i_o can_v discover_v their_o insufficiency_n i_o now_o come_v to_o the_o three_o which_o i_o think_v to_o be_v true_a viz._n as_o to_o that_o kind_n of_o rarefaction_n and_o condensation_n which_o before_o in_o the_o 4_o the_o chapter_n be_v state_v to_o be_v the_o true_a matter_n of_o the_o question_n for_o in_o rarefaction_n of_o a_o body_n suppose_v air_n either_o by_o heat_n or_o tension_n there_o be_v a_o real_a expansion_n or_o dilatation_n of_o the_o same_o mole_n of_o matter_n of_o the_o air_n and_o all_o its_o part_n to_o a_o large_a space_n extent_n or_o dimension_n than_o it_o have_v before_o and_o in_o condensation_n by_o cold_a but_o more_o evident_o by_o compression_n the_o same_o mole_n of_o matter_n and_o all_o its_o part_n have_v a_o narrow_a or_o less_o space_n or_o expansion_n than_o before_o i_o suppose_v therefore_o that_o although_o rarefaction_n and_o condensation_n of_o any_o body_n from_o its_o natural_a size_n and_o dimension_n belong_v to_o it_o be_v for_o the_o most_o part_n if_o not_o always_o by_o the_o agency_n or_o efficiency_n of_o some_o external_a cause_n yet_o under_o such_o circumstance_n rarity_n and_o density_n be_v but_o natural_a affection_n or_o rather_o passion_n quality_n or_o modes_n of_o such_o body_n arise_v from_o their_o very_a texture_n and_o make_v and_o be_v as_o natural_o belong_v to_o they_o as_o heat_n or_o cold_a humidity_n or_o dryness_n smoothness_n or_o roughness_n or_o other_o tangible_a quality_n to_o other_o body_n that_o be_v more_o gross_a and_o corporeal_a 2._o i_o do_v suppose_v that_o whatever_o man_n have_v talk_v or_o write_v concern_v spatia_fw-la imaginaria_fw-la without_o relation_n to_o any_o body_n to_o fill_v it_o yet_o as_o time_n or_o successive_a duration_n be_v a_o kind_n of_o attendant_n upon_o successive_a motion_n so_o space_n be_v a_o kind_n of_o entity_n relative_a to_o body_n and_o dependent_a upon_o they_o 3._o to_o make_v way_n to_o what_o i_o have_v to_o say_v herein_o it_o seem_v to_o i_o no_o kind_n of_o repugnancy_n in_o nature_n but_o altogether_o consonant_a thereunto_o and_o that_o it_o be_v equal_o possible_a and_o reasonable_a that_o a_o body_n that_o be_v much_o more_o rare_a than_o another_o and_o have_v in_o it_o less_o of_o solid_a corporeity_n and_o consequent_o of_o weight_n than_o another_o yet_o may_v as_o entire_o fill_v the_o whole_a space_n within_o the_o compass_n of_o its_o external_a superficies_n as_o a_o body_n of_o a_o denser_n consistence_n so_o that_o although_o gold_n be_v 18000_o time_n bulk_n for_o bulk_n heavy_a than_o air_n and_o near_o 20_o time_n heavy_a than_o water_n and_o although_o water_n be_v near_o 14_o time_n light_a than_o mercury_n
easy_o observe_v that_o in_o truth_n all_o kind_n of_o gravitation_n be_v but_o motion_n or_o conatus_fw-la ad_fw-la motum_fw-la but_o in_o that_o conatus_fw-la or_o nisus_n ad_fw-la motum_fw-la we_o be_v necessary_o to_o consider_v two_o thing_n 1._o the_o principium_fw-la motivum_fw-la 2._o the_o terminus_n motus_fw-la or_o conatus_fw-la ad_fw-la motum_fw-la the_o principium_fw-la motivum_fw-la may_v be_v various_a and_o tend_v to_o various_a termination_n it_o may_v be_v extrinsical_a and_o accidental_a as_o when_o i_o throw_v a_o stone_n into_o a_o bucket_n of_o water_n the_o motion_n of_o the_o water_n be_v thereby_o cause_v upward_o and_o raise_v its_o superficies_n and_o the_o motion_n of_o the_o water_n upward_o be_v not_o altogether_o improper_o call_v gravitation_n upward_o come_v from_o a_o external_a force_n again_o the_o principle_n of_o the_o motion_n or_o conatus_fw-la ad_fw-la motum_fw-la may_v be_v intrinsic_a and_o from_o that_o intrinsic_a principle_n may_v have_v a_o motion_n or_o conatus_fw-la ad_fw-la motum_fw-la downward_o which_o i_o call_v the_o intrinsic_a quality_n of_o gravity_n this_o intrinsic_a quality_n govern_v and_o incline_v the_o motion_n and_o conatus_fw-la ad_fw-la motum_fw-la to_o a_o central_a termination_n when_o it_o have_v no_o collateral_a impediment_n any_o man_n with_o half_a a_o eye_n may_v see_v here_o be_v a_o conatus_fw-la ad_fw-la motum_fw-la of_o the_o heavy_a body_n to_o a_o central_a motion_n which_o be_v its_o gravitation_n and_o yet_o the_o principle_n that_o impress_v this_o kind_n of_o termination_n of_o its_o motion_n be_v that_o which_o i_o call_v and_o call_v true_o the_o quality_n of_o gravity_n in_o the_o heavy_a body_n in_o the_o very_a instance_n of_o the_o motion_n of_o water_n in_o relation_n to_o the_o rundle_n of_o wood_n specifical_o light_a than_o water_n we_o may_v observe_v both_o these_o gravitation_n or_o motion_n the_o water_n press_v downward_o from_o its_o intrinsical_a principle_n or_o quality_n of_o gravity_n and_o thereby_o undermine_v and_o get_v below_o the_o rundle_n and_o then_o by_o a_o relative_a occasional_a or_o accidental_a motion_n in_o relation_n to_o the_o rundle_n of_o wood_n it_o press_v upward_o and_o drive_v up_o the_o rundle_n of_o wood_n with_o a_o force_n and_o kind_n of_o gravitation_n or_o motion_n upward_o to_o the_o superficies_n of_o the_o water_n the_o same_o water_n have_v these_o various_a termination_n one_o downward_o from_o its_o own_o intrinsic_a quality_n of_o gravity_n though_o the_o exercise_n thereof_o be_v suspend_v till_o it_o find_v a_o light_a body_n within_o its_o dimension_n to_o exert_v it_o the_o other_o upward_a in_o relation_n to_o the_o rundle_n of_o wood_n which_o by_o circumpulsion_n it_o drive_v upward_o and_o therefore_o the_o kind_a consequence_n that_o i_o hold_v there_o be_v nothing_o but_o mobility_n in_o body_n and_o that_o i_o use_v the_o phrase_n of_o gravity_n according_a to_o the_o vulgar_a acceptation_n and_o as_o idolum_fw-la fori_fw-la or_o that_o the_o actual_a descent_n of_o water_n or_o other_o heavy_a body_n be_v from_o a_o distinct_a be_v as_o be_v infer_v in_o the_o first_o second_o and_o six_o section_n of_o that_o chapter_n be_v but_o mistake_v collection_n and_o have_v no_o concession_n from_o i_o or_o any_o thing_n i_o have_v therein_o assert_v nor_o be_v at_o all_o true_a as_o i_o think_v as_o to_o the_o 4_o the_o and_o 5_o the_o illation_n in_o that_o remark_n where_o it_o be_v say_v the_o water_n have_v no_o nisus_n ad_fw-la motum_fw-la upward_o into_o the_o tube_n immerse_v and_o stop_v at_o the_o low_a end_n till_o open_v that_o in_o the_o sequel_n of_o this_o enquiry_n will_v appear_v not_o to_o be_v altogether_o true_a but_o if_o it_o be_v never_o so_o true_a yet_o it_o impugn_v not_o what_o be_v above_o by_o i_o deliver_v for_o the_o water_n be_v drive_v up_o into_o the_o tube_n by_o the_o weight_n of_o the_o body_n of_o the_o water_n in_o the_o bucket_n upon_o the_o cavity_n of_o the_o tube_n fill_v only_o with_o air_n and_o so_o the_o rise_n of_o the_o water_n into_o the_o tube_n be_v by_o the_o pressure_n of_o a_o accidental_a position_n and_o the_o fluidity_n of_o the_o ascend_a water_n meet_v with_o a_o element_n in_o the_o tube_n light_a than_o the_o water_n we_o see_v in_o a_o pair_n of_o scale_n a_o weight_n of_o two_o pound_n in_o one_o scale_n make_v the_o weight_n of_o one_o pound_n in_o the_o other_o scale_n to_o ascend_v though_o both_o be_v heavy_a body_n and_o this_o by_o mechanic_n and_o statique_a principle_n so_o in_o the_o siphon_n a_o b_o water_n pour_v into_o the_o leg_n a_o raise_v the_o water_n in_o the_o other_o leg_n to_o a_o equal_a superficies_n upon_o necessary_a statique_a ground_n without_o call_v in_o any_o subsidiary_a spirit_n of_o nature_n to_o effect_v the_o ascent_n for_o rhe_n siphon_n be_v a_o kind_n of_o natural_a libra_n and_o so_o when_o the_o tube_n stop_v with_o the_o finger_n beneath_o be_v immerse_v into_o a_o bucket_n of_o water_n and_o then_o open_v the_o circumjacent_a water_n be_v both_o fluid_a and_o heavy_a be_v drive_v up_o into_o the_o vacant_a tube_n till_o it_o come_v to_o a_o equal_a superficies_n with_o the_o rest_n of_o the_o water_n in_o the_o bucket_n by_o a_o kind_n of_o due_a equipondium_fw-la and_o all_o this_o be_v most_o regular_o and_o necessary_o effect_v according_a to_o the_o common_a mechanism_n of_o statique_a principle_n without_o any_o help_n from_o the_o suppose_a spirit_n of_o nature_n to_o fetch_v out_o the_o air_n out_o of_o the_o tube_n or_o to_o raise_v the_o water_n into_o it_o there_o be_v many_o accidental_a cause_n of_o the_o motion_n of_o water_n vertical_o upward_a which_o yet_o consist_v with_o its_o intrinsical_a principle_n or_o quality_n which_o i_o call_v gravity_n or_o conatus_fw-la to_o a_o central_a motion_n for_o instance_n 1._o it_o be_v move_v upward_o by_o cast_v into_o it_o a_o heavy_a body_n which_o take_v up_o some_o of_o its_o room_n as_o throw_v a_o stone_n into_o a_o bucket_n of_o water_n 2._o it_o be_v move_v upward_o by_o attraction_n as_o in_o pump_n and_o syringe_n 3._o it_o be_v move_v upward_o when_o within_o its_o own_o dimension_n it_o meet_v with_o a_o light_a body_n than_o itself_o as_o in_o the_o instance_n of_o the_o tube_n of_o air_n immerse_v and_o then_o unstop_v at_o the_o bottom_n or_o where_o a_o rundle_n of_o light_a wood_n be_v immerse_v in_o it_o it_o be_v apparent_a the_o water_n raise_v it_o and_o cast_v it_o to_o the_o superficies_n with_o a_o kind_n of_o force_n so_o that_o it_o will_v leap_v above_o the_o superficies_n of_o the_o water_n when_o it_o come_v thither_o but_o these_o accidental_a vertical_a motion_n do_v not_o at_o all_o take_v away_o the_o intrinsic_a principle_n of_o its_o gravity_n but_o consist_v with_o it_o and_o therefore_o it_o be_v no_o contradiction_n to_o say_v that_o gravitation_n be_v but_o conatus_fw-la ad_fw-la motum_fw-la be_v the_o motion_n lateral_a or_o vertical_a or_o central_a and_o yet_o at_o the_o same_o time_n to_o say_v that_o gravity_n be_v a_o quality_n in_o heavy_a body_n that_o specificate_v and_o determine_v their_o conatus_fw-la ad_fw-la motum_fw-la to_o be_v central_a or_o perpendicular_a remark_n ii_o descent_n of_o body_n this_o remark_n will_v sure_o have_v have_v be_v spare_v if_o the_o author_n have_v be_v please_v to_o have_v read_v the_o next_o page_n where_o it_o be_v affirm_v that_o water_n pour_v through_o the_o air_n have_v a_o direct_a central_a direction_n and_o gravitation_n pag._n 14._o of_o the_o essay_n remark_n iii_o touch_v the_o gravitation_n of_o part_n of_o solid_a body_n one_o upon_o another_o that_o every_o part_n of_o a_o solid_a body_n have_v its_o common_a quality_n of_o heaviness_n and_o will_v in_o a_o state_n of_o separation_n descend_v and_o that_o every_o part_n contribute_v to_o the_o weight_n of_o the_o whole_a be_v no_o where_o question_v only_o when_o the_o body_n be_v in_o continuity_n and_o of_o a_o equal_a consistence_n that_o there_o be_v a_o suspension_n of_o actual_a gravitation_n of_o one_o part_n upon_o another_o be_v that_o which_o be_v affirm_v but_o where_o they_o be_v of_o different_a consistency_n there_o many_o time_n happen_v actual_a and_o sensible_a gravitation_n of_o one_o part_n of_o a_o solid_a body_n upon_o another_o this_o be_v observe_v in_o the_o three_o chapter_n of_o the_o nugae_fw-la pag._n 1._o and_o have_v it_o be_v observe_v the_o remark_n i_o suppose_v will_v have_v be_v spare_v remark_n iv_o five_o vi_o vii_o upon_o the_o four_o chapter_n for_o the_o render_v my_o thought_n more_o intelligible_a touch_v gravitation_n of_o fluids_n and_o to_o make_v my_o approach_n to_o it_o the_o more_o easy_a and_o fair_a i_o give_v in_o that_o chapter_n instance_n of_o solute_a solid_a body_n and_o how_o the_o pressure_n of_o their_o part_n be_v refract_v i_o
the_o 15_o the_o remark_n will_v come_v to_o be_v consider_v hereafter_o remark_n xvi_o exception_n be_v take_v because_o i_o say_v regular_o bodily_a effect_n be_v wrought_v by_o contact_n of_o some_o active_a body_n upon_o the_o patient_n the_o remarker_n may_v if_o he_o have_v please_v have_v take_v notice_n that_o i_o often_o say_v in_o bodily_a motion_n some_o thing_n act_v from_o a_o inward_a active_a principle_n inherent_a in_o they_o as_o the_o descent_n of_o heavy_a body_n other_o thing_n there_o be_v that_o be_v move_v by_o a_o external_a or_o foreign_a active_a principle_n or_o at_o least_o some_o other_o body_n put_v into_o motion_n as_o in_o a_o clock_n the_o descent_n of_o the_o weight_n of_o lead_n be_v ab_fw-la intrinseco_fw-la principio_fw-la and_o not_o by_o any_o contact_n but_o the_o turn_n about_o of_o the_o wheel_n of_o the_o clock_n be_v by_o the_o connexion_n of_o the_o line_n to_o the_o weight_n and_o its_o circumvolution_n about_o the_o wheel_n per_fw-la contactum_fw-la to_o the_o former_a i_o never_o apply_v this_o axiom_n as_o he_o call_v it_o as_o he_o himself_o after_o in_o his_o 37_o the_o remark_n fair_o confess_v this_o active_a intrinsic_a principle_n i_o call_v the_o law_n of_o nature_n alligate_v to_o heavy_a body_n and_o if_o he_o have_v call_v it_o a_o hylarchical_a principle_n i_o shall_v not_o have_v contend_v with_o he_o about_o the_o word_n but_o in_o these_o motion_n ab_fw-la extrinseco_fw-la i_o dare_v think_v at_o least_o he_o will_v not_o deny_v it_o to_o be_v regular_o true_a remark_n xvii_o xviii_o xix_o xx._n there_o be_v no_o great_a matter_n in_o these_o but_o only_o touch_v the_o porosity_n of_o glass_n and_o the_o difficulty_n of_o the_o transition_n of_o the_o materia_fw-la subtilis_fw-la through_o it_o by_o the_o renitence_n of_o the_o air_n upon_o which_o little_o more_o need_n to_o be_v say_v than_o what_o occur_v before_o only_o where_o the_o remarker_n subjoin_v that_o upon_o the_o gentle_a gradual_a incline_v of_o the_o tube_n of_o mercury_n yet_o when_o it_o come_v to_o a_o erect_a posture_n the_o mercury_n subside_v to_o 29_o inch_n be_v a_o argument_n that_o there_o be_v no_o such_o effluvia_fw-la from_o the_o mercury_n to_o supply_v the_o derelicted_a space_n in_o the_o top_n of_o the_o tube_n this_o though_o often_o repeat_v by_o he_o in_o the_o subsequent_a remark_n seem_v to_o be_v no_o objection_n for_o whether_o the_o subside_v be_v more_o gradual_a or_o more_o sudden_a the_o compression_n of_o the_o mercurial_a part_n and_o traction_n upon_o they_o be_v equal_a when_o it_o attain_v its_o perpendicular_a pressure_n as_o to_o use_v my_o old_a comparison_n if_o a_o man_n strain_v a_o lutestring_n from_o a_o low_a to_o a_o high_a note_n suppose_v from_o a_o eight_o to_o a_o three_o if_o he_o do_v it_o rapid_o he_o shall_v indeed_o endanger_v the_o lutestring_n but_o whether_o it_o be_v wind_v up_o swift_a or_o slow_a the_o tension_n of_o the_o lutestring_n be_v the_o same_o at_o a_o equal_a height_n in_o both_o motion_n of_o the_o pin_n indeed_o while_o the_o inclination_n continue_v the_o pressure_n and_o gravitation_n of_o the_o mercury_n upon_o itself_o be_v less_o and_o consequent_o the_o tension_n weak_a and_o therefore_o the_o portion_n of_o effluvia_fw-la send_v or_o draw_v out_o in_o that_o posture_n be_v less_o but_o when_o it_o come_v to_o a_o erect_v perpendicular_a posture_n the_o pressure_n and_o gravitation_n and_o traction_n and_o tension_n be_v equal_a whether_o that_o posture_n be_v attain_v sudden_o or_o more_o leisurely_o as_o to_o the_o length_n of_o the_o tube_n or_o its_o capacity_n in_o the_o top_n to_o receive_v more_o mercury_n as_o i_o have_v make_v the_o objection_n so_o the_o answer_n that_o i_o give_v that_o the_o more_o mercury_n descend_v the_o more_o effluvia_fw-la be_v emit_v seem_v to_o i_o a_o sufficient_a answer_n whether_o the_o tube_n be_v leisurely_o or_o sudden_o bring_v to_o a_o vertical_a posture_n remark_n xxi_o xxii_o xxiii_o xxiv_o xxv_o xxvi_o xxvii_o there_o be_v in_o these_o remark_n no_o difference_n between_o we_o for_o it_o seem_v i_o write_v herein_o according_a to_o his_o sense_n only_o in_o the_o solution_n by_o i_o give_v by_o tension_n and_o rarefaction_n and_o attraction_n thereby_o wrought_v it_o agree_v not_o to_o his_o judgement_n as_o contradict_v the_o instance_n of_o the_o sustain_n of_o the_o embolus_fw-la of_o the_o air-pump_n upon_o which_o the_o enchiridion_n lay_v great_a stress_n to_o prove_v a_o hylarchical_a principle_n therefore_o most_o of_o the_o ensue_a remark_n be_v level_v against_o that_o solution_n remark_n xxviii_o xxix_o xxx_o xxxi_o touch_v the_o various_a position_n of_o the_o mercury_n upon_o the_o top_n and_o bottom_n of_o a_o hill_n i_o need_v not_o say_v more_o than_o what_o be_v say_v in_o my_o 14_o the_o chapter_n of_o the_o nugae_fw-la and_o therefore_o i_o spare_v repetition_n touch_v the_o reason_n assign_v by_o the_o remark_n of_o the_o swell_a of_o a_o bladder_n and_o the_o raise_n of_o bubble_n out_o of_o water_n and_o spirit_n of_o wine_n in_o the_o air-pump_n by_o i_o attribute_v to_o tension_n and_o attraction_n thereby_o wrought_v but_o by_o the_o remarker_n to_o a_o tumultuary_a agitation_n of_o the_o part_n of_o water_n etc._n etc._n as_o he_o be_v little_o satisfy_v with_o my_o explication_n so_o i_o be_o as_o little_a satisfy_v with_o he_o both_o indeed_o produce_v a_o agitation_n of_o the_o water_n in_o the_o glass_n but_o that_o which_o i_o assign_v be_v regular_a orderly_a and_o suitable_a to_o the_o effect_n produce_v but_o the_o tumultuary_a agitation_n of_o the_o remarker_n be_v confuse_v irregular_a and_o unproductive_a of_o such_o regular_a motion_n and_o beside_o be_v unevident_a and_o contradict_v by_o phaenomena_n of_o like_a nature_n as_o we_o shall_v see_v plain_o in_o the_o magdeburgh_n hemisphere_n the_o ludicrous_a instance_n as_o i_o call_v it_o of_o the_o attraction_n of_o tobacco_n through_o water_n be_v proper_o bring_v in_o by_o i_o in_o this_o place_n to_o show_v that_o in_o many_o instance_n attraction_n may_v be_v make_v through_o water_n which_o be_v seasonable_a in_o that_o place_n and_o proper_a enough_o remark_n xxxii_o xxxiii_o in_o these_o two_o remark_n the_o remarker_n endeavour_v to_o show_v 1._o the_o groundlessness_n of_o the_o solution_n offer_v by_o i_o to_o the_o torricellian_a phaenomena_n and_o 2._o it_o be_v repugnancy_n the_o former_a he_o say_v he_o have_v show_v in_o remark_n 32._o but_o all_o that_o be_v do_v to_o show_v it_o be_v to_o substitute_v certain_a inevident_a and_o i_o think_v mistake_a supposition_n as_o 1._o the_o perviousness_n of_o glass_n to_o the_o subtle_a aerial_a particle_n this_o indeed_o he_o have_v often_o say_v but_o no_o where_o prove_v and_o if_o it_o be_v admit_v will_v not_o only_o perfect_o destroy_v the_o apparent_a phaenomena_n in_o that_o instrument_n but_o will_v utter_o confound_v his_o answer_n to_o the_o resiliency_n of_o the_o mercury_n upon_o a_o sudden_a lift_v up_o and_o separation_n of_o the_o tube_n from_o the_o restagnant_fw-la mercury_n for_o what_o need_v such_o a_o violent_a resilition_n where_o the_o top_n of_o the_o tube_n admit_v the_o subtle_a aerial_a particle_n to_o pervade_v the_o glass_n 2._o the_o gentle_a incline_n of_o the_o tube_n to_o prevent_v the_o tumultuary_a agitation_n of_o the_o mercury_n but_o what_o i_o have_v show_v in_o my_o observation_n upon_o remark_n 17_o etc._n etc._n i_o think_v sufficient_o discover_v the_o impotence_n of_o this_o objection_n 3._o the_o gravitation_n upward_o by_o a_o circle_n of_o motion_n be_v utter_o unapt_a to_o salve_v the_o resilition_n for_o that_o circulation_n can_v be_v but_o a_o slow_a gentle_a motion_n and_o can_v possible_o have_v so_o rapid_a a_o motion_n by_o the_o imaginary_a straightness_n of_o the_o channel_n as_o we_o may_v suppose_v in_o the_o straits_n in_o the_o sea_n upon_o which_o the_o ocean_n press_v but_o this_o neither_o can_v nor_o need_n receive_v a_o great_a portion_n of_o subtle_a air_n to_o relieve_v it_o than_o possible_o 2_o inch_n in_o height_n and_o the_o 8_o the_o part_n of_o a_o inch_n in_o diameter_n where_o the_o amplitude_n of_o the_o tube_n be_v no_o great_a as_o to_o the_o second_o namely_o the_o repugnancy_n which_o be_v assign_v 1._o in_o that_o i_o deny_v a_o vacuum_n which_o he_o say_v can_v be_v by_o another_o way_n prevent_v but_o by_o the_o transition_n of_o the_o subtle_a particle_n of_o air_n through_o the_o glass_n but_o such_o a_o course_n of_o argumentation_n seem_v to_o be_v of_o kin_n to_o that_o which_o be_v call_v petitio_fw-la principii_fw-la he_o know_v i_o assign_v another_o cause_n though_o he_o dispute_v the_o truth_n of_o it_o then_o he_o proceed_v to_o the_o leisurely_o incline_v of_o the_o tube_n which_o i_o confess_v be_v often_o repeat_v but_o i_o think_v need_v not_o be_v more_o