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fire_n air_n hot_a water_n 4,445 5 7.1413 4 true
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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A24159 Essayes of natural experiments made in the Academie del cimento, under the protection of the Most Serene Prince Leopold of Tuscany / written in Italian by the secretary of that academy ; Englished by Richard Waller ... Accademia del cimento (Florence, Italy); Waller, Richard. 1684 (1684) Wing A161; ESTC R6541 101,627 224

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of_o their_o transparency_n yet_o at_o least_o we_o gain_v this_o much_o that_o water_n can_v be_v compress_v with_o a_o very_a great_a force_n and_o so_o far_o we_o have_v proceed_v that_o a_o power_n able_a to_o reduce_v air_n into_o a_o space_n 30_o time_n less_o than_o what_o it_o first_o fill_v that_o power_n not_o only_o thirty_o time_n but_o a_o hundred_o nay_o perchance_o a_o thousand_o time_n increase_v be_v too_o weak_a to_o compress_v a_o quantity_n of_o water_n a_o hair_n breadth_n or_o the_o least_o visible_a space_n from_o its_o natural_a extent_n the_o method_n we_o take_v be_v those_o that_o follow_v tab_n 17._o p._n 115._o the_o first_o experiment_n 1._o let_v there_o be_v at_o the_o end_v of_o two_o glass_n cane_n ab_fw-la ac_fw-la two_o ball_n of_o glass_n also_o the_o one_o large_a than_o the_o other_o fill_v both_o with_o fair_a water_n to_o d_o and_o e_z and_o join_v they_o together_o with_o a_o lamp_n remember_v to_o leave_v a_o passage_n open_a in_o seal_v 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of_o they_o in_o ice_n and_o the_o other_o in_o hot_a water_n let_v they_o remain_v some_o time_n and_o then_o break_v the_o neck_n of_o each_o off_o under_o water_n we_o observe_v in_o the_o hot_a one_o a_o surcharge_n or_o repletion_n from_o something_o get_v into_o it_o observable_a by_o the_o bubble_n of_o the_o water_n from_o a_o strong_a breath_n issue_v from_o the_o vial_n as_o soon_o as_o ever_o it_o be_v break_v open_a some_o may_v think_v the_o same_o shall_v have_v happen_v in_o open_v the_o cold_a one_o if_o the_o chill_a of_o the_o air_n therein_o have_v proceed_v after_o the_o same_o manner_n as_o the_o heat_n of_o that_o in_o the_o other_o i._n e._n by_o the_o intrusion_n or_o soak_v of_o the_o atom_n of_o cold_a exhale_v from_o the_o ice_n through_o the_o invisible_a pore_n of_o the_o glass_n but_o the_o quite_o contrary_a happen_v for_o instead_o of_o breathe_v forth_o any_o surcharge_n of_o matter_n it_o show_v a_o emptyness_n or_o loss_n of_o something_o if_o there_o be_v not_o a_o condensation_n of_o what_o be_v there_o since_o it_o suck_v in_o so_o much_o water_n in_o place_n of_o it_o the_o five_o experiment_n of_o heat_a and_o cool_v of_o water_n by_o salt_n etc._n etc._n and_o of_o hot_a and_o cold_a ebullition_n etc._n etc._n vetriole_n vitriol_n the_o spirit_n be_v draw_v off_o remain_v like_o a_o tartar_n or_o grumous_n body_n of_o a_o lively_a fire_n colour_n which_o with_o a_o long_a and_o continue_a fire_n distil_v a_o blackish_a oil_n almost_o like_o ink_n high_o corrosive_a this_o be_v mix_v with_o water_n in_o a_o certain_a proportion_n produce_v a_o immediate_a heat_n which_o increase_v without_o raise_v any_o bubble_n or_o
pressure_n of_o the_o air_n p._n 14_o show_v the_o alteration_n of_o the_o natural_a compression_n of_o the_o air_n p._n 35._o a_o instrument_n convenient_a to_o make_v the_o vacuum_n p._n 49_o make_a use_n of_o in_o artificial_a freezing_n p._n 77_o *_o iris-green_a what_o p._n 136_o l._n light_n body_n most_o impregnate_v therewith_o p._n 158_o whether_o its_o motion_n instantaneous_a p._n 157_o transcur_n the_o space_n of_o 2_o mile_n in_o a_o undiscernible_a time_n p._n 157_o the_o suppose_a positive_a lightness_n of_o body_n do_v not_o raise_v they_o up_o p._n 118_o experiment_n thereon_o 119_o liquor_n make_v other_o fluid_n turbid_v and_o clear_v again_o p._n 133_o m._n magnet_n not_o hinder_v by_o the_o interposition_n of_o any_o fluid_a or_o solid_a body_n p._n 124_o its_o north_n pole_n weak_a when_o place_v southwards_o than_o northwards_o p._n 127_o mercury_n fit_a to_o make_v the_o vacuum_n p._n 14_o at_o what_o height_n sustain_v in_o vacuo_fw-la p._n 15_o alter_v by_o external_n accident_n ib._n raise_v high_o in_o a_o ambient_fw-la of_o water_n than_o air_n ib._n a_o vial_n fill_v with_o mercury_n not_o run_v out_o p._n 27_o how_o high_a raise_v in_o a_o tube_n by_o the_o simple_a pressure_n of_o water_n p._n 30_o rise_v or_o fall_v as_o the_o place_n of_o observation_n be_v high_a or_o low_o p._n 35_o dissolve_v snow_n put_v into_o it_o p._n 58_o be_v attract_v by_o amber_n p._n 130_o metal_n of_o the_o vessel_n cause_v no_o alteration_n in_o the_o liquor_n freeze_a p._n 96_o which_o sort_n preserve_v ice_n best_a p._n 101_o dilate_v by_o the_o heat_n of_o fire_n p._n 110_o moisture_n of_o the_o air_n show_v by_o instrument_n p._n 8_o motion_n observe_v in_o the_o height_n of_o liquor_n when_o first_o the_o contain_v vessel_n be_v set_v in_o several_a ambient_n p._n 105_o muscadine_n its_o effect_n in_o freeze_a p._n 92_o n._n nitre_n chill_v water_n when_o mix_v therewith_o p._n 100_o 153_o o._n oil_n of_o vitriol_n mix_v with_o water_n produce_v a_o great_a heat_n p._n 153_o and_o with_o all_o fluid_v the_o like_a except_o oil_n and_o spirit_n of_o wine_n ib._n that_o and_o sal_fw-la ammoniac_a together_o make_v a_o cold_a ebullition_n ib._n etc._n etc._n p._n paper_n white_a fire_v with_o a_o burning-glass_n p._n 158_o pearl_n with_o what_o effect_v dissolve_v in_o vacuo_fw-la p._n 59_o pendulum_n the_o best_a time-meeter_n p._n 10_o their_o description_n and_o use_n p._n 11_o their_o vibration_n quick_a or_o slow_a according_a to_o their_o length_n p._n 12_o first_o apply_v to_o clock_n by_o galileo_n ib._n plato_n thought_n of_o the_o raise_n up_o of_o fire_n and_o water_n by_o the_o air_n p._n 118_o pole_n of_o the_o magnet_n when_o most_o efficacious_a p._n 127_o prejudices_fw-la against_o material_a instrument_n p._n 114_o pressure_n of_o the_o air_n act_v upon_o all_o fluid_n p._n 13_o its_o difference_n show_v by_o instrument_n p._n 35_o experiment_n in_o favour_n of_o that_o pressure_n p._n 17_o objection_n against_o it_o p._n 19_o the_o reply_n of_o some_o person_n thereto_o p._n 20_o procedure_v observe_v by_o some_o liquor_n in_o freeze_a 77*_n proportion_n of_o air_n natural_a to_o that_o rarify_v not_o still_o the_o same_o p._n 24_o whence_o it_o may_v proceed_v ib._n r._n raise_v of_o fluid_n high_o in_o small_a cane_n not_o only_o to_o be_v attribute_v to_o a_o weak_a pressure_n of_o the_o air_n in_o they_o p._n 56_o the_o reflection_n of_o the_o object_n by_o the_o len_n the_o same_o in_o vacuo_fw-la as_o in_o the_o open_a air_n p._n 42_o report_n of_o a_o demi-canon_n etc._n etc._n pass_v equal_a space_n in_o equal_a time_n p._n 138_o ring_n turn_v out_o of_o wood_n by_o imbibe_v moisture_n dilate_v p._n 108_o cilindrical_a ring_n of_o brass_n dilate_v by_o heat_n in_o the_o fire_n p._n 107_o the_o same_o vigorous_o freeze_v contract_v p._n 108_o rod_n of_o steel_n seem_v light_a hot_a than_o cold_a p._n 149_o s._n sal_fw-la ammoniac_a most_o efficacious_a in_o produce_v cold_a p._n 100_o mix_v with_o water_n arrive_v to_o a_o degree_n of_o freeze_a p._n 153_o scale_n for_o the_o velocity_n of_o sound_n p._n 142_o scope_n of_o the_o academy_n in_o their_o experiment_n with_o mercury_n p._n 33_o smoke_n descend_v in_o vacuo_fw-la in_o a_o parabola_fw-la p._n 48_o snow_n melt_v by_o mercury_n p._n 58_o dissolve_v as_o slow_o in_o vacuo_fw-la as_o the_o open_a air_n ib._n snow-water_n long_o in_o freeze_v than_o other_o liquor_n p._n 90_o yet_o the_o same_o after_o boil_a ib._n sound_n pass_v equal_a space_n in_o equal_a time_n p._n 138_o how_n propagate_v according_a to_o the_o stoic_n p._n 139_o unalterable_a in_o their_o velocity_n p._n 140_o sound_v of_o a_o bell_n and_o organ_n the_o same_o in_o vacuo_fw-la as_o in_o the_o air_n p._n 50_o spirit_n of_o wine_n make_v no_o sediment_n p._n 3_o sprinkle_a upon_o ice_n increase_v the_o cold_a p._n 100_o not_o to_o be_v inflame_v with_o a_o burning-glass_n p._n 158_o that_o and_o spirit_n of_o vitriol_n ferment_n with_o water_n with_o ebullition_n and_o heat_n p._n 154_o spirit_n of_o sulphur_n stop_v fermentation_n and_o chill_v p._n 154_o a_o cold_a steam_n from_o vessel_n fill_v with_o ice_n p._n 102_o sugar_n promote_v freeze_v p._n 100_o superficies_n of_o ice_n how_o raise_v in_o the_o midst_n p._n 97_o t._n table_n of_o freeze_a p._n 83_o thermometer_n what_o p._n 2_o how_o seal_v p._n 3_o use_v in_o experiment_n of_o freeze_a and_o why_o p._n 82_o their_o exactness_n unalterable_a by_o the_o small_a alteration_n of_o the_o capacity_n of_o their_o head_n or_o ball_n p._n 107_o tincture_n of_o rose_n how_o make_v p._n 136_o tincture_n alter_v to_o several_a colour_n by_o a_o infusion_n of_o divers_a spirit_n ib._n v._o vacuum_n what_o intend_v thereby_o p._n 16_o make_v better_a with_o mercury_n than_o by_o suction_n p._n 51_o velocity_n communicate_v by_o the_o powder_n to_o the_o bullet_n when_o fire_v downward_o preternatural_a thereto_o according_a to_o galileo_n sentiment_n p._n 144_o confirm_v by_o experiment_n 145_o vessel_n with_o small_a neck_n how_o fill_v p._n 3_o one_o make_v use_n of_o in_o many_o of_o the_o experiment_n of_o vacuity_n p._n 49_o of_o several_a material_n burst_v by_o frost_n p._n 72_o of_o earth_n contribute_v most_o to_o the_o freeze_a of_o the_o contain_v liquor_n p._n 96_o of_o metal_n and_o glass_n alter_v their_o capacity_n by_o the_o external_a application_n of_o heat_n and_o cold_a p._n 104_o the_o temperament_n of_o the_o contain_v liquor_n yet_o unaltered_a p._n 105_o vibration_n of_o the_o same_o pendulum_n not_o always_o equal_a p._n 11_o vincenzio_n galilei_n first_o adapt_v the_o pendulum_n to_o clockwork_n p._n 13_o vinegar_n style_v dissolve_v pearl_n and_o coral_n p._n 59_o virtue_n electric_n in_o what_o substance_n most_o conspicuous_a p._n 128_o hinder_v by_o the_o least_o obstacle_n interpose_v p._n 132_o virtue_n or_o force_v already_o impress_v upon_o body_n not_o alterable_a by_o a_o new_a direction_n of_o motion_n p._n 145_o w._n water_n in_o vacuo_fw-la rise_v not_o above_o 33_o foot_n 5_o inch_n p._n 15_o how_o try_v with_o other_o liquor_n p._n 31_o with_o what_o care_n it_o ought_v to_o be_v set_v to_o freeze_v in_o vessel_n p._n 79_o after_o remount_v upon_o freeze_a continue_v to_o rarify_v p._n 81_o in_o specific_a gravity_n to_o ice_n as_o 9_o to_o 8_o or_o as_o 28_o ½_o to_o 25_o p._n 79_o in_o freeze_a force_n through_o the_o screw_n of_o vessel_n p._n 74_o freeze_v in_o vacuo_fw-la p._n 98_o difficult_a if_o at_o all_o to_o be_v compress_v p._n 114_o attempt_v by_o rarifaction_n of_o air_n p._n 115_o dead_a weight_n p._n 116_o percussion_n p._n 117_o still_v in_o lead_n thicken_v fair_a water_n p._n 133_o a_o way_n to_o open_v and_o close_o again_o quick_o and_o easy_o any_o glass_n vessel_n p._n 26_o weight_n able_a to_o enlarge_v the_o capacity_n of_o vessel_n p._n 113_o specific_a weight_n of_o air_n in_o respect_n of_o water_n how_o find_v p._n 147_o wind_n contrary_a or_o favour_v neither_o retard_v nor_o accelerate_v the_o motion_n of_o sound_n p._n 140_o the_o contrary_a only_o weaken_v the_o vivacity_n thereof_o ib._n provando_fw-la e_o riprovand●_n tab._n 1._o fig._n 1._o smalto_n bianco_n smalto_n nero._n tab._n 1._o fig._n 2._o tab._n 1._o fig._n 3._o tab._n 1._o fig._n 4._o tab._n 1._o fig._n 5._o libecciata_n aquilonari_fw-la libecci_n poneuti_fw-la 17_o bra._n ●_o 3_o tab._n 2._o fig._n 2._o 2._o brac._n 2_o brac._n brac._n ¼_n 1_o brac._n ¼_n tab._n 2._o fig._n 3._o tab._n 3._o fig._n 1._o tab._n 3._o fig._n 2._o 1_o brac._n ¼_n tab._n 3._o fig._n 3._o 2_o brac._n tab._n 3._o fig._n 4._o fig._n 3._o fig._n 4._o tab._n 4._o fig._n 1._o brac._n ¼_n tab._n 4._o fig._n 2._o 2_o brac._n tab._n 4._o fig._n 3._o br._n ¼_n tab._n 4._o fig._n 4._o 1_o brac._n ¼_n tab._n 4._o fig._n 5._o 1_o brac._n ¼_n tab._n 5._o fig._n 2._o brac._n ¼_n 1_o brac._n ¼_n tab._n 5._o fig._n 3._o 1_o braccio_n br_n 142._o br._n 50._o tab._n 6._o fig._n 1._o smalto_n tab._n 6._o fig._n 2._o ½_o brac._n tab._n 6._o fig._n 3._o ⅓_n di_fw-it brac._n ⅔_n di_fw-it br._n tab._n 7._o fig._n 1._o tab._n 7._o fig._n 2._o tab._n 7._o fig._n 3._o tab._n 8._o fig._n 1._o astr_n opt._n tab._n 8._o fig._n 2._o tab._n 8._o fig._n 3._o tab._n 9_o fig._n 1._o tab._n 9_o fig._n 2._o tab._n 9_o fig._n 3._o 2_o brac._n tab._n 9_o fig._n 4._o pastiglia_fw-it nera_fw-mi ⅓_n di_fw-mi brac._n 2_o brac._n lucertole_n mignatte_n fig._n 6._o tab._n 9_o fig._n 4._o tab._n 10._o fig._n 7._o fig._n 8._o tab._n 10._o fig._n 9_o tab._n 9_o fig._n 4._o tab._n 11._o fig._n 1._o tab._n 10._o fig._n 1._o tab._n 11._o fig._n 1._o tab._n 10._o fig._n 1._o tab._n 11._o fig._n 1._o tab._n 11._o fig._n 3._o tab._n 11._o fig._n 4._o 2_o brac._n ½_o di_fw-it br._n 1_o brac._n ¼_n mignatta_n lumaca_n grilli_n farfalla_n moscone_n lucertola_fw-la uccelletto_fw-it calderugio_n allodola_n passera_fw-fr 1_o brac._n ¼_n granchio_n tenero_fw-la ranocchio_n granchio_n duro_fw-la ranocchio_n pescett●_n barbio_n anguilla_n barbio_n 1_o brac._n ½_o tab._n 11._o fig._n 6._o tab._n 11._o fig._n 7._o lasca_n tab._n 11._o fig._n 8._o lasca_n ●_o br._n 2_o 4_o job_n 38._o ver_fw-la 22._o tab._n 12._o fig._n 1._o tab._n 12._o fig._n 2._o 1_o piastra_n tab._n 12._o fig._n 5._o &_o 6._o fig._n 5._o fig._n 6._o ottone_v 2_o piastre_n tab._n 13._o fig._n 1._o tab._n 13._o fig._n 2._o ottone_v ottone_v tab._n 13_o fig._n 4._o ⅛_n di_fw-mi brac._n 1_o brac._n ½_o tab._n 41._o fig._n 1._o tab._n 14._o fig._n 2._o 2_o brac._n stato_fw-it naturale_fw-la salto_fw-la dell_fw-it immersione_n abbassamento_fw-la quiet_n sollevamento_fw-la salto_fw-la dell_fw-it agghiacciamento_n tab._n 14._o fig._n 3._o acqua_fw-la di_fw-it fiori_fw-it di_fw-it mortella_n acqua_fw-la rosa_fw-la acqua_fw-la di_fw-it fiori_fw-it di_fw-it aranci_n aqua_fw-la di_fw-it fravole_fw-it acqua_fw-la di_fw-it cannella_n acqua_fw-la di_fw-it neve_n strutta_n acqua_fw-la della_fw-it ficoncella_n vini_n rosso_n di_fw-fr chianti_n muscadello_n bianco_n aceto_n bianco_n agro_n di_fw-fr limoni_n spirito_n di_fw-fr vitriolo_n olio_fw-la piombo_n stagno_n rame_n ferro_fw-la oro_fw-la argento_n acquarzente_fw-la bicchieri_n tazze_fw-it sparse_fw-mi tab._n 15._o fig._n 1._o smalto_n armilla_n di_fw-fr branzo_n tab._n 15._o fig._n 2_o &_o 3_o tab._n 15._o fig._n 4._o fig._n 5._o tab._n 15._o fig._n 6._o 1_o brac._n ciambella_n stagno_n tab._n 16._o fig._n 1._o minugia_n tab._n 16._o fig._n 2._o tab._n 16._o fig._n 3._o minugie_a rame_n ricotto_n ottone_v tab._n 16._o fig._n 4._o tab._n 16._o fig._n 5._o tab._n 16._o fig._n 6._o tab._n 17._o fig._n 1._o rame_n tab._n 17._o fig._n 2._o brac._n 4._o tab._n 17._o fig._n 3._o tab._n 18._o fig._n 1._o tab._n 18._o fig._n 2._o tab._n 18._o fig._n 3._o tab._n 18._o fig._n 4._o tab._n 19_o fig._n 1._o tab._n 19_o fig._n 2._o ambra_fw-mi gialla_n cera_n lacca_n diamante_n zaffiro_fw-la bianco_n smeraldo_n topazio_n bianco_n ambra_fw-mi bianca_n e_fw-it nera_fw-mi lapis_fw-la lazzali_n turchine_n diaspre_n agate_n coralli_fw-la pearl_n metalli_fw-la lapilli_fw-la de_fw-fr sali_n saggina_fw-la bassilico_n gruppiti_fw-la tavole_n olio_fw-la di_fw-it tartaro_fw-la e_o d'_fw-fr anici_fw-la sp._n di_o zolfo_n tincture_n di_fw-mi rose_n rise_v safferano_n verde_n giglio_n vinato_n lacca_n muffa_o moschetto_n artiglieria_n spingarda_n smeriglio_n mezzo-cannone_a spingarda_n mastio_n dialog_n 2d_o de_fw-fr sistemi_fw-it colubrina_n falconetto_n 50_o brac_n their_o mile_n be_v about_o 5925_o f._n colubrinetta_n fasciate_v ignude_v archibuso_n dialogo_fw-la 40_o deal_v trattato_n dell_fw-it 2_o nuove_v scienze_n pettabotta_fw-it 3_o danari_fw-la 4_o br._n balestrone_n br._n 78._o br._n 6._o br._n 100_o br._n 17._o ½_o tab._n 19_o fig._n 3._o 1_o ½_o br._n vetriole_n sal_fw-la nitre_n sal_fw-la armoniaco_fw-it cold_a ebullition_n acquarzente_fw-la sp._n di_o vetriolo_n olio_fw-la di_fw-it tartaro_fw-la sp._n di_o zolfo_n olio_fw-la dicera_fw-la quintes_n di_fw-it zolfo_n estratt_n dorina_fw-la di_fw-it cavallo_n sp._n di_fw-mi cedrato_fw-mi starna_n pag._n 43._o edit_fw-la lugd._n 1638._o acquarzente_fw-la pastiglia_fw-it balsamo_n bianco_n etc._n etc._n
of_o our_o proceedure_n let_v that_o freedom_n suffice_v wherewith_o we_o have_v still_o communicate_v the_o essay_n and_o experiment_n themselves_o to_o any_o that_o travel_v by_o our_o country_n show_v any_o desire_n or_o relish_v of_o such_o science_n move_v either_o by_o a_o gentile_a humour_n esteem_v of_o learning_n or_o spur_v of_o curiosity_n and_o that_o from_o the_o first_o time_n our_o academy_n be_v found_v in_o the_o year_n 1657_o when_o the_o great_a part_n if_o not_o all_o the_o experiment_n be_v invent_v whereof_o these_o essay_n be_v now_o publish_v if_o it_o shall_v happen_v that_o among_o they_o there_o shall_v be_v any_o find_v think_v of_o before_o or_o after_o the_o time_n they_o be_v make_v here_o by_o other_o person_n and_o make_v public_a let_v we_o not_o be_v blame_v for_o it_o since_o we_o can_v neither_o know_v nor_o see_v all_o thing_n so_o that_o no_o man_n ought_v to_o wonder_v at_o the_o lucky_a accord_n of_o our_o mind_n and_o invention_n with_o other_o man_n nor_o indeed_o will_v we_o if_o we_o find_v those_o of_o other_o man_n agree_v with_o we_o last_o we_o be_v unwilling_a any_o shall_v imagine_v that_o we_o pretend_v in_o this_o publication_n a_o perfect_a work_n or_o in_o the_o least_o a_o exact_a module_n of_o a_o large_a experimental_a history_n conscious_a to_o ourselves_o that_o more_o time_n and_o great_a ability_n be_v necessary_a to_o so_o vast_a a_o design_n as_o may_v be_v see_v by_o the_o very_a title_n we_o have_v prefix_v only_o of_o essay_n which_o we_o have_v never_o put_v forth_o have_v we_o not_o be_v much_o urge_v thereto_o by_o person_n merit_v from_o we_o by_o their_o dear_a importunity_n the_o sacrifice_n of_o a_o blush_v for_o expose_v such_o imperfect_a embrio's_n and_o now_o we_o will_v close_v all_o with_o a_o protestation_n that_o we_o never_o desire_v to_o entertain_v controversy_n with_o any_o or_o engage_v in_o any_o nice_a disputation_n or_o heat_n of_o contradiction_n and_o if_o sometime_o as_o a_o transition_n from_o one_o experiment_n to_o another_o or_o upon_o what_o occasion_n soever_o there_o shall_v be_v insert_v any_o hint_n of_o speculation_n we_o request_v they_o may_v be_v take_v always_o for_o the_o thought_n and_o particular_a sense_n of_o some_o one_o of_o the_o member_n but_o not_o impute_v to_o the_o whole_a academy_n who_o sole_a design_n be_v to_o make_v experiment_n and_o relate_v they_o for_o such_o be_v our_o first_o proposal_n and_o the_o intent_n of_o that_o great_a personage_n who_o with_o his_o particular_a protection_n and_o far-reaching_a judgement_n cause_v we_o to_o take_v that_o method_n to_o which_o sage_n and_o prudent_a advice_n we_o have_v still_o punctual_o and_o regular_o conform_v the_o content_n the_o description_n of_o some_o instrument_n to_o discover_v the_o alteration_n of_o the_o air._n page_n 1_o the_o description_n of_o instrument_n to_o measure_v time_n 10_o experiment_n appertain_v to_o the_o natural_a pressure_n of_o the_o air_n 13_o 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in_o those_o of_o 100_o deg_n especial_o of_o 300_o deg_n the_o small_a inequality_n and_o error_n commit_v in_o make_v one_o with_o a_o large_a ball_n and_o small_a neck_n be_v very_o easy_a to_o be_v discover_v so_o that_o they_o will_v show_v great_a disagreement_n and_o inequality_n when_o compare_v together_o the_o four_o thermometer_n 3._o this_o four_o instrument_n have_v a_o spiral_n canale_n yet_o differ_v not_o much_o from_o the_o former_a indeed_o it_o come_v not_o near_o the_o same_o scale_n of_o proportion_n it_o be_v impossible_a to_o draw_v so_o very_o long_o a_o neck_n equal_a and_o of_o the_o same_o size_n and_o bear_v throughout_o the_o whole_a length_n because_o there_o be_v a_o necessity_n to_o pass_v and_o repass_v it_o often_o over_o the_o flame_n to_o bend_v it_o whence_o it_o can_v be_v avoid_v when_o the_o metal_n be_v soften_v by_o the_o flame_n but_o the_o cane_n will_v be_v straighten_a and_o contract_v in_o some_o place_n and_o in_o other_o relax_v and_o 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from_o all_o which_o matter_n it_o seem_v probable_a that_o this_o sustention_n of_o the_o fluid_n do_v not_o absolute_o depend_v upon_o the_o weight_n of_o the_o air_n but_o also_o upon_o the_o compression_n which_o low_a part_n of_o the_o air_n receive_v from_o those_o above_o a_o experiment_n to_o know_v if_o the_o air_n near_o the_o superficies_n of_o the_o earth_n be_v press_v by_o the_o weight_n of_o the_o air_n above_o and_o if_o it_o be_v put_v in_o a_o void_a space_n at_o its_o liberty_n whether_o it_o will_v expand_v itself_o to_o a_o great_a space_n and_o how_o much_o when_o yet_o it_o be_v still_o unaltered_a by_o any_o new_a degree_n of_o heat_n the_o ingenious_a observation_n make_v by_o m._n roberval_n with_o the_o little_a bladder_n of_o air_n enlarge_n itself_o in_o vacuo_fw-la move_v some_o to_o believe_v it_o may_v be_v determine_v how_o far_o the_o air_n be_v capable_a of_o expansion_n when_o at_o absolute_a liberty_n in_o any_o place_n for_o it_o seem_v probable_a 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outward_a and_o make_v smooth_a for_o the_o more_o easy_a fasten_n on_o of_o the_o lens_n then_o fill_v the_o vessel_n with_o mercury_n we_o make_v the_o vacuum_n and_o incline_v the_o tube_n we_o tie_v it_o to_o the_o rest_n as_o in_o the_o figure_n and_o have_v make_v the_o room_n dark_a and_o bring_v a_o candle_n near_o it_o we_o observe_v in_o the_o lens_fw-la the_o two_o image_n of_o the_o object_n as_o be_v usual_a one_o of_o these_o be_v lesser_a but_o very_o vivid_v and_o always_o direct_a which_o be_v reflect_v from_o the_o convex_a outward_a superficies_n the_o other_o be_v indeed_o large_a but_o more_o obscure_a and_o languid_a and_o invert_v which_o nevertheless_o be_v not_o lose_v though_o the_o imagine_a foil_n of_o air_n be_v want_v on_o the_o concave_n inward_a superficies_n of_o the_o lens_n by_o reason_n of_o the_o vacuum_n make_v in_o make_v this_o experiment_n we_o always_o use_v to_o put_v three_o or_o four_o finger_n depth_n of_o spirit_n of_o wine_n upon_o the_o 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whether_o it_o attract_v it_o as_o it_o do_v in_o the_o air._n tab._n 9_o p._n 45._o 1._o yet_o still_o desire_v some_o fruit_n of_o this_o experiment_n we_o think_v of_o make_v another_o vessel_n as_o abc_n persuade_v ourselves_o that_o therewith_o we_o may_v more_o easy_o obviate_v the_o inconvenience_n of_o the_o air_n enter_v and_o also_o the_o difficulty_n of_o move_v the_o wooden_a instrument_n forward_o and_o backward_o wherefore_o fill_v at_o the_o mouth_n a_o this_o vessel_n have_v first_o close_v its_o other_o mouth_n c_o and_o rest_v it_o as_o in_o the_o former_a experiment_n upon_o the_o cushion_n as_o be_v direct_v we_o then_o bind_v the_o bladder_n abc_n about_o the_o piece_n of_o wood_n 2._o and_o thrust_v it_o into_o the_o mercury_n so_o as_o the_o end_n thereof_o whereto_o the_o amber_n be_v fasten_v may_v reach_v a_o piece_n of_o cloth_n stick_v to_o the_o side_n of_o the_o glass_n then_o we_o throw_v in_o some_o small_a bit_n of_o straw_n and_o turn_v down_o the_o 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impossible_a but_o the_o ligature_n must_v be_v relax_v at_o least_o so_o much_o as_o be_v needful_a to_o let_v in_o the_o subtle_a air._n it_o be_v observe_v also_o that_o when_o the_o vessel_n be_v full_a of_o air_n though_o we_o rub_v the_o amber_n with_o great_a force_n upon_o the_o piece_n of_o cloth_n b_o yet_o it_o have_v no_o attraction_n a_o thing_n which_o at_o first_o make_v we_o suspect_v that_o some_o dregs_o of_o the_o mercury_n adhere_v to_o the_o cloth_n whence_o the_o amber_n by_o rub_v may_v acquire_v some_o foulness_n to_o close_v and_o stop_v up_o the_o imperceptible_a pore_n of_o those_o passage_n by_o which_o the_o attractive_a virtue_n issue_v out_o which_o suspicion_n seem_v more_o probable_a because_o we_o already_o know_v some_o liquor_n wherewith_o the_o amber_n be_v wet_v or_o any_o other_o electric_n substance_n refuse_v to_o attract_v but_o since_o we_o after_o find_v that_o the_o same_o amber_n rub_v upon_o a_o piece_n of_o cloth_n often_o dip_v in_o 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but_o it_o be_v not_o so_o here_o for_o the_o contact_n be_v not_o loose_v wherefore_o it_o seem_v we_o must_v conclude_v something_o beside_o levity_n buoy_v it_o up_o the_o second_o experiment_n 3._o let_v there_o be_v a_o wooden_a vessel_n abcd_v in_o the_o thickness_n of_o the_o bottom_n whereof_o a_o concave_a hemisphere_n be_v turn_v efg_n exact_o fit_v a_o ball_n of_o ivory_n h_n adapt_v to_o its_o great_a circle_n eglantine_n then_o the_o whole_a vessel_n be_v fill_v with_o mercury_n so_o that_o the_o globe_n be_v quite_o cover_v therewith_o it_o be_v manifest_a that_o the_o weight_n of_o the_o mercury_n incumbent_a upon_o the_o bottom_n of_o the_o vessel_n and_o hinder_v from_o run_v between_o the_o low_a convex_v of_o the_o ball_n and_o concave_a of_o the_o vessel_n by_o the_o closeness_n of_o the_o contact_n at_o the_o circumference_n eglantine_n be_v not_o able_a by_o descend_v thither_o to_o raise_v the_o ball_n by_o pulsion_n but_o the_o natural_a levity_n of_o the_o ivory_n if_o there_o be_v any_o such_o thing_n may_v easy_o buoy_v it_o up_o in_o the_o heavy_a ambient_fw-la of_o the_o quicksilver_n but_o this_o do_v not_o follow_v the_o ball_n remain_v unmoved_a in_o its_o socket_n under_o any_o height_n of_o mercury_n nor_o can_v it_o be_v object_v that_o nature_n avoid_v a_o vacuum_n which_o must_v follow_v upon_o the_o first_o loosen_a of_o the_o ball_n from_o the_o concave_n of_o the_o vessel_n hinder_v the_o natural_a levity_n of_o the_o ball_n from_o its_o effect_n for_o though_o we_o make_v a_o hole_n through_o the_o bottom_n of_o the_o vessel_n fi_n whereby_o the_o air_n have_v admission_n to_o fill_v the_o space_n leave_v void_a upon_o sever_a the_o ball_n yet_o for_o all_o this_o it_o be_v not_o raise_v and_o because_o it_o may_v be_v say_v that_o the_o ball_n be_v touch_v by_o the_o air_n below_o be_v not_o light_a but_o heavy_a than_o it_o we_o again_o stop_v up_o the_o hole_n and_o enlarge_v the_o socket_n as_o it_o appear_v elg_n so_o that_o only_o the_o edge_n or_o upper_a circle_n of_o the_o hole_n eglantine_n remain_v equal_a to_o the_o great_a circle_n of_o the_o ball_n but_o the_o hemisphere_n efg_n be_v not_o now_o fit_v to_o the_o concave_a elg_n as_o be_v plain_a in_o the_o figure_n we_o then_o fill_v elg_n with_o mercury_n and_o forcible_o thrust_v down_o the_o ball_n till_o its_o great_a circle_n touch_v the_o edge_n of_o the_o concave_n now_o though_o it_o be_v but_o slight_o hold_v by_o the_o circle_n eglantine_n so_o that_o with_o a_o very_a little_a force_n it_o may_v be_v turn_v about_o yet_o we_o fill_v up_o the_o vessel_n with_o mercury_n and_o it_o be_v not_o raise_v nor_o move_v 4._o last_o that_o it_o may_v not_o be_v suspect_v that_o the_o mercury_n pour_v on_o by_o press_v upon_o the_o ball_n hold_v it_o down_o with_o its_o weight_n from_o swim_v we_o take_v instead_o of_o the_o ball_n h_o a_o conical_a glass_n vessel_n abcd_v and_o fit_v a_o lesser_a circle_n thereof_o to_o the_o edge_n 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the_o momentum_fw-la believe_v to_o proceed_v from_o the_o levity_n of_o the_o glass_n abcd_v which_o be_v more_o than_o that_o whereby_o it_o resist_v a_o vacuity_n which_o be_v but_o one_o pound_n then_o if_o the_o lightness_n be_v that_o which_o cause_v the_o glass_n to_o swim_v it_o will_v have_v produce_v its_o effect_n dissolve_v the_o contact_n since_o its_o force_n be_v much_o great_a than_o that_o of_o the_o contact_n resist_v it_o but_o it_o do_v not_o do_v it_o therefore_o it_o seem_v that_o the_o same_o be_v confirm_v by_o this_o second_o experiment_n which_o be_v conclude_v from_o the_o former_a viz._n that_o it_o be_v some_o other_o cause_n beside_o the_o levity_n that_o lift_v up_o