vessel_n if_o it_o be_v hollow_a float_n upon_o the_o water_n be_v so_o very_o heavy_a b._n because_o the_o vessel_n and_o the_o air_n in_o it_o take_v as_o one_o body_n be_v more_o easy_o cast_v off_o than_o a_o body_n of_o water_n equal_a to_o it_o a._n how_o come_v it_o to_o pass_v that_o a_o fish_n especial_o such_o a_o broad_a fish_n as_o a_o turbot_n or_o a_o plaice_n which_o be_v broad_a and_o thin_a in_o the_o bottom_n of_o the_o sea_n perhaps_o a_o mile_n deep_a be_v not_o press_v to_o death_n with_o the_o weight_n of_o water_n that_o lie_v upon_o the_o back_n of_o it_o b._n because_o all_o heavy_a body_n descend_v towards_o one_o point_n which_o be_v the_o centre_n of_o the_o earth_n and_o consequent_o the_o whole_a sea_n descend_v at_o once_o do_v arch_n itself_o so_o as_o that_o the_o upper_a part_n can_v press_v the_o part_n next_o below_o they_o a._n it_o be_v evident_a nor_o can_v there_o be_v possible_o any_o weight_n as_o some_o suppose_v there_o be_v of_o a_o cylinder_n of_o air_n or_o water_n or_o of_o any_o other_o liquid_a thing_n while_o it_o remain_v in_o its_o own_o element_n or_o be_v sustain_v and_o enclose_v in_o a_o vessel_n by_o which_o one_o part_n can_v press_v the_o other_o chap._n ii_o problem_n of_o tide_n a._n what_o make_v the_o flux_n and_o reflux_n of_o the_o sea_n twice_o in_o a_o natural_a day_n b._n we_o must_v come_v again_o to_o our_o basin_n of_o water_n wherein_o you_o have_v see_v whilst_o it_o be_v move_v how_o the_o water_n mount_v up_o by_o the_o side_n and_o withal_o go_v circle_v round_o about_o now_o if_o you_o shall_v fasten_v to_o the_o inside_n of_o the_o basin_n some_o bar_n from_o the_o bottom_n to_o the_o top_n you_o will_v see_v the_o water_n instead_o of_o go_v on_o go_v back_o again_o from_o that_o bar_n ebb_v and_o the_o water_n on_o the_o other_o side_n of_o the_o bar_n to_o do_v the_o same_o but_o in_o counter-time_n and_o consequent_o to_o be_v high_a where_o the_o contrary_a stream_n meet_v 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america_n and_o the_o rise_n of_o the_o same_o in_o this_o part_n of_o the_o world_n proceed_v from_o the_o swell_a chief_o of_o the_o water_n there_o and_o partly_o also_o from_o the_o north_n sea_n which_o lie_v also_o east_n and_o west_n and_o have_v a_o passage_n out_o of_o the_o south_n sea_n by_o the_o straight_a of_o anian_n between_o america_n and_o asia_n a._n do_v not_o the_o mediterranean-sea_n lie_v also_o east_n and_o west_n why_o be_v there_o not_o the_o like_a tide_n there_o b._n so_o there_o be_v proportionable_a to_o their_o length_n and_o quantity_n of_o water_n a._n at_o genoa_n at_o ancona_n there_o be_v none_o at_o all_o or_o not_o sensible_a b._n at_o venice_n there_o be_v and_o in_o the_o bottom_n of_o the_o straits_n and_o a_o current_a all_o along_o both_o the_o mediterranean-sea_n and_o the_o gulf_n of_o venice_n and_o it_o be_v the_o current_n that_o make_v the_o tide_n unsensible_a at_o the_o side_n but_o the_o check_n make_v they_o visible_a at_o the_o bottom_n a._n how_o come_v it_o about_o that_o the_o moon_n have_v such_o a_o stroke_n in_o the_o business_n as_o so_o sensible_o to_o increase_v the_o tide_n at_o full_a and_o change_v b._n the_o motion_n i_o have_v hitherto_o suppose_v but_o in_o the_o earth_n i_o suppose_v also_o in_o the_o moon_n and_o in_o all_o those_o great_a body_n that_o hang_v in_o the_o air_n constant_o i_o mean_v the_o star_n both_o fix_v and_o errant_a and_o for_o the_o sun_n and_o moon_n i_o suppose_v the_o pole_n of_o their_o motion_n to_o be_v the_o pole_n of_o the_o aequinoctial_a which_o suppose_v it_o will_v follow_v because_o the_o sun_n the_o earth_n and_o the_o moon_n at_o every_o full_a and_o change_n be_v almost_o in_o one_o straight_a line_n that_o this_o motion_n of_o the_o earth_n will_v be_v make_v swift_a than_o in_o the_o quarter_n for_o this_o motion_n of_o the_o sun_n and_o moon_n be_v communicate_v to_o the_o earth_n that_o have_v already_o the_o like_a motion_n make_v the_o same_o 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but_o that_o be_v a_o thing_n i_o have_v some_o reason_n to_o doubt_v of_o for_o the_o throw_v off_o of_o air_n consequent_a to_o these_o motion_n be_v the_o cause_n you_o say_v that_o other_o thing_n come_v to_o the_o earth_n and_o therefore_o the_o like_a motion_n in_o the_o sun_n and_o moon_n and_o star_n cast_v off_o the_o air_n shall_v also_o cause_v all_o other_o thing_n to_o come_v to_o every_o one_o of_o they_o from_o whence_o it_o will_v follow_v that_o the_o sun_n moon_n and_o earth_n and_o all_o other_o body_n but_o air_n shall_v present_o come_v together_o into_o one_o heap_n b._n that_o do_v not_o follow_v for_o if_o two_o body_n cast_v off_o the_o air_n the_o motion_n of_o that_o air_n will_v be_v repress_v both_o way_n and_o divert_v into_o a_o course_n towards_o the_o pole_n on_o both_o side_n and_o then_o the_o two_o body_n can_v possible_o come_v together_o a._n it_o be_v true_a and_o beside_o this_o drive_v off_o the_o air_n on_o both_o side_n north_n and_o south_n make_v the_o like_a motion_n of_o air_n there_o also_o and_o this_o may_v answer_v to_o the_o question_n how_o a_o stone_n can_v fall_v to_o the_o earth_n under_o the_o pole_n of_o the_o ecliptic_a by_o the_o only_o cast_v off_o of_o air_n b._n it_o follow_v from_o hence_o that_o there_o be_v a_o certain_a and_o determinate_a distance_n of_o one_o of_o these_o body_n the_o star_n from_o another_o without_o any_o very_a sensible_a variation_n a._n all_o this_o be_v probable_a enough_o if_o it_o be_v true_a that_o there_o be_v no_o vacuum_n no_o place_n empty_a in_o all_o the_o world_n and_o suppose_v this_o motion_n of_o the_o sun_n and_o moon_n to_o be_v in_o the_o plain_a of_o the_o aequinoctial_a methinks_v that_o this_o shall_v be_v the_o cause_n of_o the_o diurnal_a motion_n of_o the_o earth_n and_o because_o this_o motion_n of_o the_o earth_n be_v you_o say_v in_o the_o plain_a of_o the_o aequinoctial_a the_o same_o shall_v cause_v also_o a_o motion_n in_o the_o moon_n on_o her_o own_o centre_n answerable_a to_o the_o diurnal_a motion_n of_o the_o earth_n b._n why_o not_o what_o else_o can_v you_o think_v make_v the_o diurnal_a motion_n of_o the_o earth_n but_o the_o sun_n and_o for_o the_o moon_n if_o it_o do_v not_o turn_v upon_o its_o own_o centre_n we_o shall_v see_v sometime_o one_o sometime_o another_o face_n of_o the_o moon_n which_o we_o do_v not_o chap._n iii_o problem_n of_o vacuum_n what_o convince_a argument_n be_v there_o to_o prove_v that_o in_o all_o the_o world_n there_o be_v no_o empty_a place_n b._n many_o but_o i_o will_v name_v but_o one_o and_o that_o be_v the_o difficulty_n of_o separate_v two_o body_n hard_a and_o flat_o lay_v
earth_n the_o like_a happen_v to_o a_o man_n body_n or_o hand_n which_o when_o he_o perceive_v he_o say_v he_o be_v hot._n and_o so_o of_o the_o earth_n when_o it_o send_v forth_o water_n and_o earth_n together_o in_o plant_n we_o say_v it_o do_v it_o by_o heat_n from_o the_o sun_n a._n it_o be_v very_o probable_a and_o no_o less_o probable_a that_o the_o same_o action_n of_o the_o sun_n be_v that_o which_o from_o the_o sea_n and_o moist_a place_n of_o the_o earth_n but_o especial_o from_o the_o sea_n fetch_v up_o the_o water_n into_o the_o cloud_n but_o there_o be_v many_o way_n of_o heat_n beside_o the_o action_n of_o the_o sun_n or_o of_o fire_n two_o piece_n of_o wood_n will_v take_v fire_n if_o in_o torning_n they_o be_v press_v together_o b._n here_o again_o you_o have_v a_o manifest_a laceration_n of_o the_o air_n by_o the_o reciprocal_a and_o contrary_a motion_n of_o the_o two_o piece_n of_o wood_n which_o necessary_o cause_v a_o come_n forth_o of_o whatsoever_o be_v aereal_a or_o fluid_a within_o they_o and_o the_o motion_n pursue_v a_o dissipation_n also_o of_o the_o other_o more_o solid_a part_n into_o ash_n a._n how_o come_v it_o to_o pass_v that_o a_o man_n be_v warm_v even_o to_o sweat_v almost_o with_o every_o extraordinary_a labour_n of_o his_o body_n b._n it_o be_v easy_a to_o understand_v how_o by_o that_o labour_n all_o that_o be_v liquid_a in_o his_o body_n be_v toss_v up_o and_o down_o and_o thereby_o part_v of_o it_o also_o cast_v forth_o a._n there_o be_v some_o thing_n that_o make_v a_o man_n hot_a without_o sweat_n or_o other_o evaporation_n as_o caustiques_n nettle_n and_o other_o thing_n b._n no_o doubt_n but_o they_o touch_v the_o part_n they_o so_o heat_v and_o can_v work_v that_o effect_n at_o any_o distance_n a._n how_o do_v heat_n cause_n light_n and_o that_o partial_o in_o some_o body_n more_o in_o some_o less_o though_o the_o heat_n be_v equal_a b._n heat_n do_v not_o cause_n light_n at_o all_o but_o in_o many_o body_n the_o same_o cause_n that_o be_v to_o say_v the_o same_o motion_n cause_v both_o together_o so_o that_o they_o be_v not_o to_o one_o another_o as_o cause_n and_o effect_n but_o be_v concomitant_a effect_n sometime_o of_o one_o and_o the_o same_o motion_n a._n how_o b._n you_o know_v the_o rub_n or_o hear_v press_v of_o the_o eye_n or_o a_o stroke_n upon_o it_o make_v a_o apparition_n of_o light_n without_o and_o before_o it_o which_o way_n soever_o you_o look_v this_o can_v proceed_v from_o nothing_o else_o but_o from_o the_o restitution_n of_o the_o organ_n press_v or_o strike_v unto_o its_o former_a ordinary_a situation_n of_o part_n do_v not_o the_o sun_n by_o his_o thrust_v back_o the_o air_n upon_o you_o eye_n press_v they_o or_o do_v not_o those_o body_n whereon_o the_o sun_n shine_v though_o by_o reflection_n do_v the_o same_o though_o not_o so_o strong_o and_o do_v not_o the_o organ_n of_o sight_n the_o eye_n the_o heart_n and_o brain_n resist_v that_o pressure_n by_o a_o endeavour_n of_o restitution_n outward_o why_o then_o shall_v there_o not_o be_v without_o and_o before_o the_o eye_n a_o apparition_n of_o light_n in_o this_o case_n as_o well_o as_o in_o the_o other_o a._n i_o grant_v there_o must_v but_o what_o be_v that_o which_o appear_v after_o the_o press_n of_o the_o eye_n for_o there_o be_v nothing_o without_o that_o be_v not_o there_o before_o or_o if_o there_o be_v methinks_v another_o shall_v see_v it_o better_o or_o as_o well_o as_o he_o or_o if_o in_o the_o dark_a methinks_v it_o shall_v enlighten_v the_o place_n b._n it_o be_v a_o fancy_n such_o as_o be_v the_o appearance_n of_o your_o face_n in_o a_o looking-glass_n such_o as_o be_v a_o dream_n such_o as_o be_v a_o ghost_n such_o as_o be_v a_o spot_n before_o the_o eye_n that_o have_v stare_v upon_o the_o son_n or_o fire_n for_o all_o these_o be_v of_o the_o regiment_n of_o fancy_n without_o any_o body_n conceal_v under_o they_o or_o behind_o they_o by_o which_o they_o be_v produce_v a._n and_o when_o you_o look_v towards_o the_o sun_n or_o moon_n why_o be_v not_o that_o also_o which_o appear_v before_o your_o eye_n at_o that_o time_n a_o fancy_n b._n so_o it_o be_v though_o the_o sun_n itself_o be_v a_o real_a body_n yet_o that_o bright_a circle_n of_o about_o a_o foot_n diameter_n can_v be_v the_o sun_n unless_o there_o be_v two_o sun_n a_o great_a and_o a_o lesser_a and_o because_o you_o may_v see_v that_o which_o you_o call_v the_o sun_n both_o above_o you_o in_o the_o sky_n and_o before_o you_o in_o the_o water_n and_o two_o sun_n by_o distort_v your_o eye_n in_o two_o place_n of_o the_o sky_n one_o of_o they_o must_v needs_o be_v fancy_n and_o if_o one_o both_o all_o sense_n be_v fancy_n though_o the_o cause_n be_v always_o in_o a_o real_a body_n a._n i_o see_v by_o this_o that_o those_o thing_n which_o the_o learned_a call_v the_o accident_n of_o body_n be_v indeed_o nothing_o else_o but_o diversity_n of_o fancy_n and_o be_v inherent_a in_o the_o sentient_a and_o not_o in_o the_o object_n except_o motion_n and_o quantity_n and_o i_o perceive_v by_o your_o doctrine_n you_o have_v be_v tamper_n with_o leviathan_n but_o how_o come_v wood_n with_o a_o certain_a degree_n of_o heat_n to_o shine_v and_o iron_n also_o with_o a_o great_a degree_n but_o no_o heat_n at_o all_o to_o be_v able_a to_o make_v water_n shine_v b._n that_o which_o shine_v have_v the_o same_o motion_n in_o its_o part_n that_o i_o have_v all_o this_o while_n suppose_v in_o the_o sun_n and_o earth_n in_o which_o motion_n there_o must_v needs_o be_v a_o competent_a degree_n of_o swiftness_n to_o move_v the_o sense_n that_o be_v to_o make_v it_o visible_a all_o body_n that_o be_v not_o fluid_a will_v shine_v with_o heat_n if_o the_o heat_n be_v very_o great_a iron_n will_v shine_v and_o gold_n will_v shine_v but_o water_n will_v not_o because_o the_o part_n be_v carry_v away_o before_o they_o attain_v to_o that_o degree_n of_o swiftness_n which_o be_v requisite_a a._n there_o be_v many_o fluid_a body_n who_o part_n evaporate_v and_o yet_o they_o make_v a_o flame_n as_o oil_n and_o wine_n and_o other_o strong_a drink_n b._n as_o for_o oil_n i_o never_o see_v any_o inflame_v by_o itself_o how_o much_o soever_o heat_v therefore_o i_o do_v not_o think_v they_o be_v the_o part_n of_o the_o oil_n but_o of_o the_o combustible_a body_n oil_v that_o shine_n but_o the_o part_n of_o wine_n and_o strong_a drink_n have_v partly_o a_o strong_a motion_n of_o themselves_o and_o may_v be_v make_v to_o shine_v but_o not_o with_o boil_v but_o by_o add_v to_o they_o as_o they_o rise_v the_o flame_n of_o some_o other_o body_n a._n how_o can_v it_o be_v know_v that_o the_o particle_n of_o wine_n have_v such_o a_o motion_n as_o you_o suppose_v b._n have_v you_o ever_o be_v so_o much_o distemper_v with_o drink_v wine_n as_o to_o think_v the_o window_n and_o table_n move_v a._n i_o confess_v though_o you_o be_v not_o my_o confessor_n i_o have_v but_o very_o seldom_o and_o i_o remember_v the_o window_n seem_v to_o go_v and_o come_v in_o a_o kind_n of_o circle_a motion_n such_o as_o you_o have_v describe_v but_o what_o of_o that_o b._n nothing_o but_o that_o it_o be_v the_o wine_n that_o cause_v it_o which_o have_v a_o good_a degree_n of_o that_o motion_n before_o do_v when_o it_o be_v heat_v in_o the_o vein_n give_v that_o concussion_n which_o you_o think_v be_v in_o the_o window_n to_o the_o vein_n themselves_o and_o by_o the_o continuation_n of_o the_o part_n of_o man_n body_n to_o the_o brain_n and_o that_o be_v it_o which_o make_v the_o window_n seem_v to_o move_v a._n what_o be_v flame_n for_o i_o have_v often_o think_v the_o flame_n that_o come_v out_o of_o a_o small_a heap_n of_o straw_n to_o be_v more_o before_o it_o have_v do_v flame_v then_o a_o hundred_o time_n the_o straw_n itself_o b._n it_o be_v but_o your_o fancy_n if_o you_o take_v a_o stick_n in_o your_o hand_n by_o one_o end_n the_o other_o end_n burn_v and_o move_v it_o swift_o the_o burn_a end_n if_o the_o motion_n be_v circular_a shall_v seem_v a_o circle_n if_o straight_o a_o straight_a line_n of_o fire_n long_o or_o short_a according_a to_o the_o swiftness_n of_o the_o motion_n or_o to_o the_o space_n it_o move_v in_o you_o know_v the_o cause_n of_o that_o a._n i_o think_v it_o be_v because_o the_o impression_n of_o that_o visible_a object_n which_o be_v make_v at_o the_o first_o instant_n of_o the_o motion_n do_v last_o till_o it_o be_v end_v for_o than_o it_o will_v follow_v that_o it_o must_v be_v visible_a all_o the_o way_n the_o impression_n in_o all_o point_n of_o the_o time_n be_v
the_o first_o entrance_n be_v resist_v which_o it_o be_v not_o before_o it_o enter_v a._n how_o then_o come_v a_o bullet_n when_o shoot_v very_o oblique_o into_o any_o broad_a water_n and_o have_v enter_v yet_o to_o rise_v again_o into_o the_o air_n b._n when_o a_o bullet_n be_v shoot_v very_o oblique_o though_o the_o motion_n be_v never_o so_o swift_a yet_o approach_v downward_o to_o the_o water_n be_v very_o slow_a and_o when_o it_o come_v to_o it_o it_o cast_v up_o much_o water_n before_o it_o which_o with_o its_o weight_n press_v downward_o again_o and_o make_v the_o water_n to_o rise_v under_o the_o bullet_n with_o force_n enough_o to_o master_v the_o weak_a motion_n of_o the_o bullet_n downward_o and_o to_o make_v it_o rise_v in_o such_o manner_n as_o body_n use_v to_o rise_v by_o reflection_n a._n by_o what_o motion_n see_v you_o ascribe_v all_o effect_n to_o motion_n can_v a_o loadstone_n draw_v iron_n to_o it_o b._n by_o the_o same_o motion_n hitherto_o suppose_v but_o 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one_o upon_o another_o i_o say_v the_o difficulty_n not_o the_o impossibility_n it_o be_v possible_a without_o introduce_v vacuum_n to_o pull_v asunder_o any_o two_o body_n how_o hard_a and_o flat_a soever_o they_o be_v if_o the_o force_n use_v be_v great_a than_o the_o resistance_n of_o the_o hardness_n and_o in_o case_n there_o be_v any_o great_a difficulty_n to_o part_v they_o beside_o what_o proceed_v from_o their_o hardness_n then_o there_o be_v to_o pull_v they_o further_o asunder_o when_o they_o be_v part_v that_o difficulty_n be_v argument_n enough_o to_o prove_v there_o be_v no_o vacuum_n a._n these_o assertion_n need_v demonstration_n and_o first_o how_o do_v the_o difficulty_n of_o separation_n argue_v the_o plenitude_n of_o all_o the_o rest_n of_o the_o world_n b._n if_o two_o flat_a polish_a marble_n lie_v one_o upon_o another_o you_o see_v they_o be_v hardly_o separate_v in_o all_o point_n at_o one_o and_o the_o same_o instant_n and_o yet_o the_o weight_n of_o either_o 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marble_n yet_o you_o can_v pull_v they_o asunder_o but_o how_o still_o as_o you_o pull_v the_o wax_n grow_v continual_o more_o and_o more_o slender_a there_o be_v a_o perpetual_a part_n or_o discession_n of_o the_o outermost_a part_n of_o the_o wax_n one_o from_o another_o which_o the_o air_n present_o fill_v and_o so_o there_o be_v a_o continual_a lessen_v of_o the_o wax_n till_o it_o be_v no_o big_a than_o a_o hair_n and_o at_o last_o separation_n if_o you_o can_v do_v the_o same_o to_o a_o pillar_n of_o marble_n till_o the_o outside_n give_v way_n the_o effect_n will_v be_v the_o same_o but_o much_o quick_a after_o it_o once_o begin_v to_o break_v in_o the_o superficies_n because_o the_o force_n that_o can_v master_v the_o first_o resistance_n of_o the_o hardness_n will_v quick_o dispatch_v the_o rest_n a._n it_o seem_v so_o by_o the_o brittleness_n of_o some_o hard_a body_n but_o i_o shall_v afterward_o put_v some_o question_n to_o you_o touch_v the_o nature_n of_o hardness_n but_o 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the_o engine_n at_o gresham_n college_n be_v sufficient_a to_o prove_v that_o there_o be_v or_o that_o there_o may_v be_v vacuum_n a._n the_o world_n you_o know_v be_v finite_a and_o consequent_o all_o that_o infinite_a space_n without_o it_o be_v empty_a why_o may_v not_o some_o of_o that_o vacuum_n be_v bring_v in_o and_o mingle_v with_o the_o air_n here_o b._n i_o know_v nothing_o in_o matter_n without_o the_o world_n a._n what_o say_v you_o to_o torricellioes_n experiment_n in_o quicksilver_n which_o be_v this_o there_o be_v a_o basin_n at_o a_o fill_v with_o quicksilver_n suppose_v to_o b_o and_o cd_o a_o hollow_a glass_n pipe_v fill_v with_o the_o same_o which_o if_o you_o stop_v with_o your_o finger_n at_o b_o and_o so_o set_v it_o upright_o and_o then_o if_o you_o take_v away_o your_o finger_n the_o quicksilver_n will_v fall_v from_o c_z downward_o but_o not_o to_o the_o bottom_n for_o it_o will_v stop_v by_o the_o way_n suppose_v at_o d._n be_v it_o not_o therefore_o 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