the_o sun_n rarefy_v ascend_v to_o the_o middle_a region_n of_o the_o air_n where_o by_o mean_n of_o the_o coldness_n thereof_o these_o vapour_n be_v condensat_fw-la and_o thicken_v and_o turâ—…d_v into_o a_o cloud_n and_o afterward_o be_v turn_v into_o rain_n and_o so_o fall_v down_o that_o there_o be_v such_o damp_n and_o vapour_n which_o ascend_v from_o the_o earth_n and_o water_n can_v rational_o be_v deny_v nay_o many_o thousand_o and_o million_o of_o they_o ascend_v which_o we_o do_v not_o see_v nor_o observe_v i_o have_v see_v in_o frosty_a morning_n the_o mouth_n of_o coal-sinks_a and_o empty_a passage_n from_o waste_n ground_n where_o coal_n have_v be_v dig_v out_o fume_n and_o vapour_n come_v out_o so_o plentiful_o as_o fume_n from_o a_o salt-pan_n some_o do_v fit_o compare_v this_o earth_n to_o a_o bag-pudding_n take_v out_o of_o a_o boiling-pot_n which_o send_v forth_o vapour_n in_o abundance_n likewise_o from_o the_o surface_v of_o stand_v and_o run_v water_n what_o number_n may_v be_v see_v in_o a_o warm_a summer_n evening_n nay_o from_o the_o body_n of_o man_n and_o beast_n there_o be_v a_o perpetual_a perspiration_n but_o the_o fine_a and_o pure_a of_o all_o be_v those_o which_o be_v exhale_v from_o the_o earth_n and_o water_n we_o see_v that_o when_o the_o sun_n be_v hot_a in_o summer_n the_o whole_a face_n of_o the_o ground_n after_o rain_n cover_v over_o with_o undul_v or_o little_a curl_a wave_n a_o small_a gale_n of_o wind_n be_v stir_v like_a unto_o the_o curl_a wave_n of_o the_o sea_n analogical_o and_o so_o slender_a and_o pure_a be_v they_o that_o whilst_o a_o man_n be_v among_o they_o he_o can_v see_v they_o but_o at_o a_o distance_n he_o may_v look_v along_v the_o face_n of_o the_o ground_n likewise_o what_o multitude_n of_o they_o may_v be_v see_v along_v the_o surface_n of_o the_o sea_n a_o man_n stand_v at_o a_o considerable_a distance_n from_o the_o coast._n and_o so_o thick_a be_v they_o that_o they_o have_v wonderful_o lift_v up_o and_o magnify_v much_o of_o the_o land_n and_o have_v make_v it_o appear_v far_o otherwise_o than_o it_o be_v nay_o eclipse_v whole_a village_n and_o town_n and_o metamorphose_v they_o into_o various_a shape_n and_o form_n all_o which_o have_v come_v to_o pass_v by_o reason_n of_o their_o multiplicity_n and_o thickness_n now_o these_o vapour_n flow_v from_o the_o earth_n and_o water_n be_v carry_v up_o to_o the_o middle_a region_n of_o the_o air_n where_o by_o process_n of_o time_n they_o be_v condensat_fw-la and_o thicken_v by_o the_o coldness_n thereof_o and_o fall_v down_o in_o rain_n but_o here_o it_o may_v be_v inquire_v by_o what_o cause_n â—…r_v power_n be_v these_o vapour_n carry_v up_o see_v they_o be_v material_a thing_n and_o endue_v with_o weight_n for_o answer_v i_o must_v premit_fw-la some_o few_o thing_n which_o do_v not_o ordinary_o occur_v first_o that_o in_o all_o heavy_a body_n there_o be_v a_o twofold_a weight_n one_o specifical_a the_o other_o individual_a the_o specifical_a weight_n be_v find_v in_o body_n which_o differ_v by_o nature_n as_o wood_n and_o stone_n balance_v one_o with_o another_o equal_a quantity_n with_o equal_a quantity_n â—…_n individual_a weight_n be_v likewise_o find_v in_o the_o same_o body_n but_o after_o a_o different_a way_n and_o manner_n for_o example_n stone_n be_v natural_o or_o specifical_o heavy_a than_o wood_n put_v equal_a quantity_n against_o equal_a quantity_n for_o a_o cubical-foot_n of_o stone_n be_v heavy_a than_o a_o cubical-foot_n of_o water_n body_n of_o the_o same_o individual_a weight_n or_o such_o as_o be_v weigh_v in_o a_o pair_n of_o scale_n as_o a_o pound_n of_o lead_n and_o a_o pound_n of_o wool_n be_v individual_o of_o the_o same_o weight_n but_o of_o different_a weight_n specifical_o second_o there_o be_v two_o sort_n of_o balance_n the_o one_o natural_a the_o other_o artificial_a the_o natural_a balance_n be_v the_o mercurial_a weatherglass_n wherein_o the_o mercury_n counterpoise_v the_o air_n and_o the_o air_n the_o mercury_n both_o of_o they_o observe_v a_o equal_a altitude_n according_a to_o their_o natural_a weight_n for_o since_o the_o mercury_n be_v reckon_v 14000_o time_n heavy_a than_o the_o air_n the_o pillar_n of_o the_o one_o must_v be_v 14000_o time_n low_a than_o the_o other_o and_o so_o both_o be_v of_o the_o same_o height_n according_a to_o their_o specifical_a weight_n the_o artificial_a balance_n be_v that_o mechanical_a power_n call_v the_o libra_n three_o that_o one_o body_n natural_o light_a than_o another_o may_v become_v of_o equal_a weight_n or_o heavy_a than_o that_o other_o for_o example_n the_o vapour_n which_o ascend_v be_v far_o light_a specifical_o than_o the_o air_n yet_o they_o become_v heavy_a specifical_o when_o contract_v and_o reduce_v by_o a_o cold_a to_o a_o thick_a habit_n or_o consistency_n and_o most_o of_o all_o when_o they_o be_v convert_v to_o rain_n but_o how_o shall_v it_o be_v know_v that_o the_o vapour_n be_v natural_o light_a than_o the_o air_n i_o answer_v if_o it_o be_v possible_a to_o take_v a_o equal_a quantity_n of_o vapour_n with_o a_o equal_a quantity_n of_o air_n and_o weigh_v they_o in_o a_o balance_n the_o air_n will_v be_v heavy_a we_o know_v that_o oil_n be_v light_a than_o water_n for_o be_v put_v under_o water_n it_o rise_v to_o the_o surface_n so_o the_o vapour_n go_v up_o through_o the_o air_n as_o oil_n go_v up_o through_o the_o water_n now_o i_o come_v to_o the_o question_n in_o hand_n and_o i_o affirm_v that_o the_o vapour_n be_v carry_v upward_o not_o by_o the_o heat_n of_o the_o sun_n which_o be_v a_o vulgar_a error_n but_o they_o be_v specifical_o and_o natural_o light_a than_o the_o air_n be_v press_v up_o by_o it_o as_o smoak_n till_o they_o come_v so_o far_o up_o as_o the_o pressure_n of_o the_o air_n be_v able_a to_o carry_v they_o i_o shall_v make_v this_o evident_a by_o the_o follow_a experiment_n let_v a_o diver_n go_v down_o to_o the_o bottom_n of_o the_o sea_n with_o a_o bottle_n of_o oil_n in_o his_o hand_n and_o pour_v it_o out_o there_o he_o shall_v find_v that_o such_o be_v the_o pressure_n of_o the_o water_n it_o shall_v drive_v it_o all_o up_o to_o the_o surface_n above_o for_o as_o the_o oil_n be_v natural_o light_a than_o the_o water_n so_o these_o vapour_n be_v natural_o light_a than_o the_o air._n now_o these_o vapour_n which_o be_v infinite_a in_o number_n ascend_v from_o all_o the_o part_n of_o the_o earth_n to_o the_o atmosphere_n many_o mile_n above_o the_o cloud_n cause_v the_o air_n here_o below_o press_n with_o great_a weight_n upon_o the_o stagnant_a mercury_n and_o so_o raise_v the_o quicksilver_n in_o the_o wether_n glass_n one_o inch_n or_o two_o and_o sometime_o three_o for_o it_o be_v not_o possible_a that_o the_o air_n above_o can_v be_v press_v down_o and_o burden_v with_o that_o new_a weight_n and_o addition_n of_o vapour_n ascend_v but_o the_o stagnant_a mercury_n below_o must_v find_v the_o say_a pressure_n but_o how_o be_v these_o vapour_n condensat_fw-la and_o thicken_v together_o and_o fall_v down_o in_o rain_n i_o shall_v do_v this_o by_o a_o most_o evident_a and_o clear_a example_n we_o can_v more_o fit_o compare_v these_o vapour_n ascend_v and_o descend_v again_o in_o rain_n than_o to_o a_o alembick_a or_o distillater_n for_o these_o fume_n be_v carry_v upward_o within_o the_o pot_n and_o meet_v with_o a_o cold_a receptacle_n for_o the_o pipe_n descend_v go_v ordinary_o through_o a_o vessel_n full_a of_o cold_a water_n they_o be_v present_o reduce_v to_o their_o first_o condition_n and_o fall_v down_o in_o liquor_n so_o be_v the_o vapour_n which_o ascend_v from_o the_o stomach_n to_o the_o cold_a brain_n receive_v and_o distil_v but_o why_o shall_v the_o fall_n down_o of_o the_o rain_n cause_n the_o quicksilver_n fall_v down_o and_o why_o shall_v the_o rise_n of_o the_o vapour_n cause_v the_o quicksilver_n to_o rise_v for_o clear_v of_o this_o it_o be_v to_o be_v advert_v that_o whilst_o the_o mercury_n be_v up_o at_o one_o and_o thirty_o inch_n there_o be_v a_o equal_a balance_n or_o weight_n between_o the_o weight_n of_o the_o atmosphere_n and_o the_o weight_n of_o the_o quicksilver_n so_o that_o there_o can_v be_v the_o least_o weight_n subtract_v from_o the_o pressure_n of_o the_o atmosphere_n but_o as_o much_o must_v be_v subtract_v from_o the_o height_n of_o the_o quicksilver_n as_o by_o take_v away_o one_o ounce_n from_o this_o scale_n of_o a_o balance_n the_o other_o present_o go_v down_o or_o by_o add_v one_o ounce_n to_o this_o scale_n of_o a_o balance_n the_o other_o scale_n present_o go_v up_o hence_o be_v it_o that_o the_o pressure_n of_o the_o atmosphere_n become_v less_o by_o the_o fall_n down_o of_o the_o vapour_n and_o consequent_o the_o height_n of_o the_o
by_o the_o practice_n and_o invention_n of_o learned_a men._n the_o late_a lord_n argile_n do_v employ_v a_o most_o ingenious_a gentleman_n the_o laird_n of_o melgim_n who_o go_v down_o with_o a_o dive_v bell_n and_o make_v a_o further_a inquiry_n after_o some_o pain_n and_o labour_n he_o buoy_v up_o three_o gun_n one_o of_o iron_n judge_v it_o to_o be_v of_o some_o other_o metal_n one_o of_o copper_n and_o one_o of_o brass_n about_o eight_o foot_n long_a apeice_n and_o eight_o inch_n of_o diameter_n the_o three_o essay_n be_v make_v by_o the_o late_a earl_n of_o argile_n himself_o several_a year_n after_o who_o do_v more_o there_o be_v one_o captain_n smith_n who_o undertake_v after_o that_o yet_o more_o who_o think_v himself_o so_o sure_o of_o the_o spanish_a gold_n that_o he_o will_v not_o suffer_v a_o carpenter_n with_o himself_o but_o this_o interprize_n turn_v to_o nought_o to_o effectuate_v the_o proposal_n i_o shall_v offer_v these_o six_o proposition_n which_o with_o small_a pain_n may_v be_v make_v evident_a from_o hydrostatical_a principle_n and_o next_o infer_v some_o conclusion_n needful_a for_o the_o design_n in_o hand_n first_o the_o whole_a ship_n with_o all_o its_o loadn_v be_v the_o just_a and_o precise_a weight_n of_o as_o much_o water_n as_o the_o low_a part_n of_o the_o hull_n expel_v or_o be_v expel_v by_o the_o ship_n water-draught_n second_o when_o the_o ship_n become_v heavy_a than_o the_o say_a quantity_n of_o water_n it_o sink_v three_o water_n do_v not_o weigh_v in_o water_n this_o be_v evident_a for_o when_o a_o man_n pull_v a_o bucket_n full_a of_o water_n from_o the_o bottom_n of_o a_o well_o he_o find_v no_o weight_n thereof_o till_o it_o come_v to_o the_o surface_n four_o nothing_o light_a in_o specie_fw-la than_o water_n or_o of_o the_o same_o weight_n with_o water_n can_v sink_v hence_o neither_o timber_n wine_n bear_v nor_o oil_n can_v tarry_v at_o the_o sea_n ground_n but_o must_v be_v buoy_v up_o of_o necessity_n five_o by_o how_o much_o the_o whole_a timber_n of_o the_o ship_n be_v light_a in_o specie_fw-la than_o as_o much_o water_n equal_a to_o it_o in_o bulk_n by_o so_o much_o be_v it_o the_o more_o able_a to_o buoy_v up_o imagine_v the_o whole_a timber_n of_o the_o ship_n reduce_v to_o a_o cube_n of_o so_o many_o foot_n and_o a_o cube_n of_o water_n give_v of_o the_o same_o quantity_n now_o i_o say_v as_o many_o pound_n as_o this_o cube_n of_o water_n be_v heavy_a than_o that_o of_o timber_n so_o many_o pound_n of_o iron_n lead_v or_o stone_n will_v the_o ship_n buoy_v up_o or_o support_v even_o though_o full_a of_o water_n six_o a_o heavy_a body_n as_o iron_n lead_v or_o stone_n weigh_v as_o much_o less_o in_o water_n than_o in_o air_n as_o the_o quantity_n of_o water_n it_o expel_v a_o square_a foot_n of_o lead_n which_o i_o suppose_v weigh_v in_o the_o air_n 728_o pound_n weigh_v but_o 672_o pound_n in_o the_o water_n less_o by_o 56_o the_o weight_n of_o a_o square_a foot_n of_o water_n from_o these_o proposition_n i_o infer_v that_o when_o a_o ship_n be_v to_o be_v buoy_v up_o from_o the_o ground_n of_o the_o sea_n nothing_o of_o she_o weigh_v save_o her_o ballast_n by_o ballast_n i_o understand_v take_v the_o word_n large_o every_o thing_n in_o the_o ship_n heavy_a in_o specie_fw-la than_o water_n as_o gun_n ankers_n bullet_n of_o iron_n and_o lead_v iron-bolt_n nail_n and_o all_o manner_n of_o ironwork_n next_o that_o the_o whole_a weight_n of_o the_o ballast_n do_v not_o preponderate_a or_o weigh_v down_o last_o that_o the_o timber_n of_o the_o ship_n and_o all_o thing_n in_o it_o light_a in_o specie_fw-la than_o water_n concur_v for_o buoy_v up_o the_o ballast_n the_o best_a expedient_a for_o raise_v of_o ship_n entire_o be_v ark_n of_o wood_n apply_v either_o to_o the_o side_n of_o the_o ship_n without_o or_o just_a above_o the_o orlop_n these_o ark_n must_v be_v so_o close_o on_o all_o side_n that_o neither_o air_n nor_o water_n can_v pass_v the_o ark_n to_o describe_v it_o more_o particular_o must_v have_v four_o side_n and_o a_o cover_v above_o but_o open_v complete_o below_o at_o every_o corner_n next_o to_o the_o mouth_n must_v be_v fix_v a_o strong_a iron-ring_n four_o likewise_o above_o that_o be_v one_o in_o each_o corner_n answer_v to_o the_o four_o below_o which_o be_v for_o fix_v a_o second_o ark_n above_o the_o first_o if_o need_v be_v if_o the_o ship_n which_o be_v to_o be_v raise_v be_v twenty_o foot_n over_o make_v your_o ark_n twenty_o foot_n wide_a and_o as_o much_o in_o height_n bring_v it_o just_a over_o the_o place_n where_o the_o ship_n lie_v and_o fill_v it_o with_o water_n that_o it_o may_v sink_v without_o difficulty_n thrust_v it_o down_o till_o it_o come_v just_a above_o the_o orlop_n and_o fasten_v it_o within_o five_o or_o six_o foot_n of_o the_o same_o with_o rope_n pass_v through_o the_o four_o ring_n and_o the_o beam_n or_o balk_n of_o the_o ship._n the_o ark_n be_v thus_o fasten_v to_o the_o ship_n by_o a_o diver_n the_o next_o work_n be_v to_o beget_v a_o power_n or_o force_v within_o it_o which_o shall_v be_v able_a to_o buoy_v up_o the_o ship_n from_o the_o ground_n of_o the_o sea._n this_o may_v be_v do_v either_o by_o send_v down_o bucket_n full_a of_o air_n with_o their_o mouth_n foremost_a one_o after_o another_o from_o the_o surface_n of_o the_o water_n and_o then_o cause_v a_o diver_n receive_v they_o and_o thrust_v they_o somewhat_o within_o the_o mouth_n of_o the_o ark_n turn_v up_o the_o orifice_n by_o which_o mean_n the_o whole_a air_n in_o it_o shall_v ascend_v up_o through_o the_o water_n of_o the_o ark_n and_o rest_v above_o next_o to_o the_o top_n this_o device_n be_v often_o repeat_v will_v at_o last_o expel_v the_o whole_a water_n of_o the_o ark_n and_o fill_v it_o complete_o with_o air._n this_o be_v so_o sure_a a_o experiment_n that_o none_o needs_o to_o call_v it_o in_o question_n or_o by_o communicate_v air_n to_o the_o ark_n from_o above_o by_o the_o help_n of_o a_o pair_n of_o large_a bellows_o and_o long_a pipe_n of_o leather_n go_v down_o within_o the_o mouth_n of_o the_o ark._n or_o three_o by_o the_o multiplication_n of_o bladder_n full_a of_o wind_n fill_v the_o ark_n within_o which_o may_v be_v do_v more_o easy_o the_o ark_n be_v oncefull_a of_o air_n will_v have_v a_o considerable_a pull_n with_o it_o which_o be_v more_o and_o less_o according_a to_o the_o dimension_n thereof_o for_o know_v this_o you_o must_v consider_v that_o whatever_o tâ—…e_a dimension_n of_o the_o ark_n be_v it_o will_v buoy_v up_o as_o much_o weight_n as_o the_o water_n weigh_v which_o fill_v it_o iâ—…_n then_o the_o ark_n be_v twenty_o foot_n wide_a and_o as_o much_o in_o height_n it_o must_v contain_v eight_o thousand_o square_a foot_n of_o water_n and_o since_o every_o square_a foot_n of_o water_n thereof_o weigh_v fifty_o six_o pound_n trois_fw-fr the_o whole_a must_v be_v 448000._o a_o ark_n then_o of_o twenty_o foot_n square_a will_v buoy_v up_o four_o hundred_o and_o forty_o eight_o thousand_o pound_n weight_n the_o weight_n of_o 58_o cannon_n royal_a each_o one_o whereof_o i_o suppose_v weigh_v 8000_o pound_n or_o the_o weight_n of_o 74_o demi-cannon_n or_o the_o weight_n of_o 97_o culvering_n or_o of_o 149_o demi-culverin_n or_o of_o 298_o saker_n each_o one_o of_o this_o sort_n weigh_v 1500_o pound_n or_o last_o the_o weight_n of_o 250_o tun_n of_o wine_n reckon_v four_o hogshead_n to_o a_o tun_n and_o each_o one_o of_o these_o weigh_v 448_o pound_n if_o you_o fasten_v a_o second_o ark_n above_o the_o first_o by_o the_o help_n of_o the_o ring_n upon_o the_o top_n which_o i_o mention_v both_o will_v buoy_v up_o together_o 896000_o pound_n the_o weight_n of_o 112_o cannon_n royal._n but_o if_o your_o ark_n be_v 30_o foot_n in_o all_o its_o dimension_n it_o must_v contain_v twenty_o and_o seven_o thousand_o square_a foot_n of_o water_n which_o will_v weigh_v one_o million_o five_o hundred_o and_o twelve_o thousand_o pound_n weight_n 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the_o orlop_n i_o shall_v suppose_v that_o upon_o each_o side_n there_o be_v four_o ark_n each_o one_o 10_o foot_n square_n if_o this_o be_v every_o single_a ark_n must_v contain_v 1000_o square_a foot_n of_o water_n which_o will_v weigh_v fifty_o six_o thousand_o pound_n all_o of_o they_o together_o therefore_o must_v buoy_v up_o 448000_o pound_n weight_n the_o burden_n of_o 56_o cannon_n royal._n to_o know_v how_o to_o proportion_v the_o quantity_n of_o your_o ark_n to_o the_o burden_n of_o the_o ship_n which_o be_v the_o great_a secret_a follow_v this_o method_n consider_v first_o that_o neither_o the_o timber_n of_o the_o ship_n nor_o the_o water_n which_o be_v in_o she_o nor_o any_o other_o thing_n which_o be_v light_a in_o specie_fw-la than_o water_n that_o be_v any_o thing_n which_o float_v upon_o the_o surface_n or_o of_o the_o same_o weight_n with_o it_o preponderats_n or_o weigh_v down_o but_o only_o what_o be_v heavy_a in_o specie_fw-la than_o water_n as_o gun_n ankers_n 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their_o distinction_n 5._o they_o have_v only_o one_o solstice_n to_o wit_n in_o cancer_n but_o analogical_o two_o other_o may_v be_v add_v to_o wit_n when_o the_o sun_n be_v in_o the_o begin_n of_o aries_n and_o libra_n 6._o there_o be_v one_o summer_n and_o one_o winter_n but_o their_o summer_n be_v rather_o to_o be_v call_v a_o slender_a slake_n of_o the_o cold._n they_o have_v one_o winter_n because_o the_o sun_n be_v under_o their_o horizon_n a_o whole_a half_a year_n together_o 7._o the_o gnomon_n of_o their_o dial_n describe_v with_o the_o extremity_n of_o the_o shadow_n upon_o a_o horizontal_n plain_n perfect_a circle_n finis_fw-la proteus_n bind_v with_o chain_n or_o a_o discovery_n of_o the_o secret_n of_o nature_n which_o be_v find_v in_o the_o mercurial-weather-glass_n unfold_a the_o reason_n and_o cause_n why_o before_o fair_a wether_n the_o quicksilver_n ascend_v and_o before_o foul_a wether_n it_o fall_v down_o and_o descend_v a_o subject_n not_o hitherto_o treat_v of_o 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there_o be_v many_o who_o rash_o adventure_v and_o bring_v upon_o that_o unerring_a and_o infallible_a masterpiece_n of_o nature_n the_o scandalous_a and_o odious_a character_n of_o falibility_n either_o by_o raise_v the_o mercury_n too_o high_a or_o fix_v it_o too_o low_a in_o the_o cylindrical-glass_n both_o which_o extreme_n must_v be_v cautious_o shun_v for_o if_o it_o be_v not_o order_v according_a to_o the_o authentic_a observation_n of_o the_o wether_n for_o many_o year_n past_a it_o can_v but_o err_v and_o herein_o its_o infallibility_n and_o perfection_n consist_v to_o give_v the_o theory_n of_o the_o wether_n a_o just_a and_o determinate_a height_n according_a to_o long_a observation_n and_o by_o consequence_n the_o top_n of_o the_o cylinder_n the_o same_o height_n none_o of_o which_o no_o ignorant_a person_n can_v do_v the_o question_n to_o be_v resolve_v be_v such_o as_o follow_v 1._o what_o sustain_v the_o mercury_n in_o the_o glass-tube_n whilst_o the_o orifice_n be_v always_o downward_o and_o open_a 2._o why_o the_o glass_n must_v exceed_v in_o length_n one_o and_o thirty_o inch_n 3._o why_o the_o mercury_n fall_v not_o down_o if_o it_o be_v short_a than_o twenty_o and_o eight_o 4._o why_o the_o mercury_n be_v carry_v up_o with_o violence_n to_o the_o top_n of_o the_o glass-tube_n whilst_o the_o orifice_n be_v raise_v above_o the_o surface_n of_o the_o stagnant_a mercury_n 5._o why_o as_o much_o mercury_n in_o height_n be_v sustain_v in_o the_o wide_a glass_n as_o in_o the_o narrow_a 6._o why_o though_o the_o glass_n be_v in_o height_n many_o foot_n yet_o the_o whole_a mercury_n fall_v down_o to_o twenty_o and_o nine_o or_o thirty_o inch_n above_o the_o cistern_n 7._o what_o fill_v up_o the_o space_n leave_v empty_a behind_o 8._o why_o the_o mercury_n subside_v by_o degree_n as_o the_o weatherglass_n be_v carry_v up_o some_o high_a mountain_n and_o why_o it_o rise_v again_o as_o it_o be_v carry_v down_o 9_o why_o a_o glass_n of_o thirty_o six_o foot_n high_a be_v require_v to_o make_v a_o wether_n glass_n with_o water_n in_o it_o 10._o what_o be_v the_o reason_n i_o do_v not_o find_v the_o weight_n of_o the_o mercury_n within_o the_o glass_n whilst_o i_o poise_v it_o between_o my_o finger_n and_o yet_o i_o find_v another_o weight_n exact_o the_o weight_n of_o it_o 11._o what_o that_o other_o weight_n be_v all_o these_o and_o many_o more_o be_v full_o and_o clear_o resolve_v in_o my_o philosophical_a experiment_n twenty_o year_n ago_o but_o there_o be_v a_o late_a question_n which_o trouble_v all_o the_o learned_a to_o resolve_v which_o now_o i_o intend_v short_o to_o explain_v viz._n what_o be_v the_o reason_n why_o the_o quicksilver_n in_o the_o weatherglass_n creep_v up_o before_o fair_a wether_n and_o fall_v down_o before_o foul_a wether_n for_o a_o answer_n to_o this_o considerable_a question_n it_o be_v to_o be_v observe_v that_o in_o the_o foul_a wether_n i_o have_v find_v the_o quicksilver_n fall_v down_o to_o twenty_o and_o eight_o and_o in_o the_o dry_v and_o fair_a wether_n i_o have_v find_v it_o up_o at_o thirty_o and_o one_o inch._n from_o this_o excellent_a phenomenon_n only_o it_o be_v call_v the_o weatherglass_n kat'exohen_n by_o way_n of_o excellency_n because_o before_o this_o alteration_n be_v find_v in_o it_o it_o be_v call_v by_o the_o most_o part_n of_o philosopher_n the_o torricellian_a experiment_n for_o clear_v the_o question_n in_o hand_n i_o suppose_v that_o in_o the_o beginning_n there_o go_v up_o a_o damp_n from_o the_o earth_n to_o water_v the_o whole_a face_n of_o the_o ground_n moses_n gen._n 2._o relate_v now_o the_o ordinary_a mean_n appoint_v by_o god_n in_o nature_n for_o bring_v forth_o of_o herb_n bush_n and_o tree_n out_o of_o the_o ground_n viz._n the_o damp_n which_o cause_v the_o rain_n and_o moisten_v the_o earth_n which_o damp_n being_n by_o the_o heat_n of_o
quicksilver_n must_v decresce_fw-it also_o and_o contrariwise_o which_o clear_v the_o second_o part_n of_o the_o question_n whilst_o the_o vapour_n be_v ascend_v and_o go_v up_o the_o atmosphere_n be_v more_o burden_a and_o by_o consequence_n the_o quicksilver_n rise_v sometime_o less_o and_o sometime_o more_o sometime_o one_o inch_n sometime_o two_o or_o three_o but_o how_o come_v it_o to_o pass_v that_o the_o whole_a air_n or_o that_o great_a and_o vast_a bulk_n of_o it_o can_v be_v in_o equal_a weight_n with_o so_o small_a a_o portion_n of_o quicksilver_n grant_v the_o air_n to_o be_v so_o heavy_a as_o be_v common_o report_v i_o answer_v it_o be_v not_o the_o air_n according_a to_o its_o thickness_n or_o bulk_n which_o make_v any_o counterbalance_n with_o the_o quicksilver_n but_o it_o be_v the_o air_n reckon_v according_a to_o height_n because_o fluid_a body_n do_v not_o counterpoise_v one_o another_o according_a to_o all_o their_o dimension_n but_o only_o according_a to_o 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one_o to_o another_o for_o this_o we_o have_v scripture_n and_o divine_a authority_n for_o it_o be_v say_v whether_o we_o prophesy_v let_v we_o prophesy_v according_a to_o the_o proportion_n of_o faith._n the_o original_a word_n be_v analogia_fw-la pisteos_n well_o render_v in_o our_o vulgar_a language_n the_o proportion_n of_o faith_n or_o analogy_n of_o faith_n not_o as_o some_o the_o measure_n of_o faith._n god_n be_v not_o tie_v to_o number_n yet_o nevertheless_o he_o do_v and_o dispose_v his_o work_n by_o number_n weight_n and_o measure_n it_o be_v observe_v that_o after_o the_o go_v up_o out_o of_o egypt_n god_n cause_v to_o be_v number_v all_o the_o israelite_n from_o the_o age_n of_o twenty_o year_n and_o upward_a exod._n 38._o 26._o and_o there_o be_v find_v six_o hundred_o three_o thousand_o five_o hundred_o and_o fifty_o man_n the_o year_n follow_v god_n command_v to_o make_v a_o second_o review_n of_o the_o people_n numb_a 1._o 46._o but_o without_o comprise_v the_o 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in_o greenland_n where_o the_o great_a extremity_n of_o cold_a be_v there_o be_v infinite_a treasure_n of_o snow_n which_o snow_n can_v not_o fall_v down_o so_o plentiful_o if_o there_o be_v not_o vapour_n perpetual_o ascend_v next_o after_o rain_n and_o the_o fall_n down_o of_o the_o mercury_n to_o 28_o or_o 29_o inch_n i_o have_v find_v the_o ascent_n of_o it_o in_o that_o same_o night_n eight_o or_o ten_o degree_n which_o can_v not_o happen_v unless_o there_o have_v be_v a_o addition_n of_o new_a weight_n to_o the_o atmosphere_n and_o this_o be_v observe_v to_o be_v rather_o in_o the_o winter_n than_o in_o the_o summer_n season_n especial_o in_o calm_a night_n i_o have_v observe_v that_o the_o next_o morning_n after_o frost_n all_o the_o night_n the_o stand_a water_n in_o furrow_n which_o have_v remain_v many_o day_n entire_a dry_v up_o and_o nothing_o remain_v but_o emptiness_n below_o a_o surface_n of_o thin_a white_a yâ—…e_n this_o water_n can_v not_o sink_v into_o the_o ground_n 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