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water_n add_v ounce_n strain_v 3,612 5 11.1936 5 false
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ID Title Author Corrected Date of Publication (TCP Date of Publication) STC Words Pages
A60282 Natural philosophy improven by new experiments touching the mercurial weather-glass, the hygroscope, eclipsis, conjunctions of Saturn and Jupiter, by new experiments, touching the pressure of fluids, the diving-bell, and all the curiosities thereof : to which is added some new observations, and experiments, lately made of several kinds : together with a true relation of an evil spirit, which troubled a mans family for many days : lastly, there is a large discourse anent coal, coal-sinks, dipps, risings, and streeks of coal, levels running of mines, gaes, dykes, damps, and wild-fire / by G.S. Sinclair, George, d. 1696. 1683 (1683) Wing S3855; ESTC R15622 205,371 320

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of_o the_o water_n ce_fw-fr or_o de_fw-fr i_o answer_v i_o can_v find_v the_o pressure_n of_o the_o water_n ce_fw-fr because_o it_o be_v counterpoise_v with_o the_o upward_a pressure_n of_o the_o water_n ik_fw-mi and_o for_o the_o same_o reason_n i_o can_v find_v the_o weight_n of_o the_o water_n df_n because_o it_o be_v counterpoise_v by_o lm_o but_o because_o there_o be_v nothing_o between_o h_n and_o a_o to_o counterpoise_v the_o downward_o pressure_n of_o the_o water_n give_v therefore_o i_o find_v that_o if_o it_o be_v object_v that_o the_o water_n ik_fw-mi can_v counterpoise_v the_o water_n ce_fw-fr because_o the_o one_o be_v far_o down_o than_o the_o other_o and_o consequent_o under_o a_o great_a pressure_n than_o the_o other_o i_o answer_v though_o ik_fw-mi be_v strong_a than_o ce_fw-fr yet_o a_o compensation_n be_v make_v by_o the_o weight_n of_o the_o tub._n for_o understand_v this_o let_v we_o suppose_v the_o water_n ce_fw-fr and_o df_n to_o press_v downward_o with_o the_o weight_n of_o six_o pound_n and_o the_o water_n ki_v and_o lm_o to_o press_v upward_o with_o the_o weight_n of_o ten_o pound_n there_o be_v four_o pound_n in_o difference_n suppose_v next_o the_o tub_n to_o weigh_v in_o the_o air_n ten_o pound_n and_o in_o the_o water_n only_o six_o pound_n if_o this_o be_v then_o according_a to_o the_o eight_o experiment_n and_o eighteen_o theorem_n four_o pound_n weight_n of_o the_o tub_n must_v rest_v upon_o the_o surface_n il._n and_o if_o this_o be_v then_o must_v the_o water_n ik_fw-mi and_o lm_o be_v four_o pound_n weak_a with_o the_o tub_n than_o without_o it_o and_o must_v only_o have_v six_o pound_n of_o upward_a pressure_n fig._n 9_o pag._n 5●_n fig._n 10_o fig._n 1●_n pag._n 7●_n fig._n 13_o pag._n 81_o fig._n 14_o pag._n 86_o experiment_n xi_o figure_n 15._o amzc_n be_v a_o water_n 15_o foot_n deep_a ab_fw-la a_o glass-tub_n 14_o inch_n long_o and_o full_a of_o mercury_n bc_n a_o pillar_n of_o water_n 13_o foot_n 10_o inch_n high_a 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8_o pag._n 55_o beside_o these_o three_o in_o water_n conceive_v a_o four_o in_o the_o air_n above_o the_o water_n namely_o lmn_n upon_o this_o aërial_a surface_n rest_v the_o orifice_n m_o of_o the_o tub_n tm_n open_v above_o upon_o the_o surface_n efg_v be_v stand_v the_o mouth_n f_o of_o the_o pipe_n sf_n and_o upon_o the_o surface_n abcd_n stand_v the_o pipe_n rb_n open_v at_o both_o end_n after_o the_o orifice_n b_o be_v drown_v below_o the_o water_n you_o will_v find_v the_o liquor_n rise_v from_o b_o to_z h._n then_o close_o with_o the_o pulp_n of_o your_o finger_n the_o mouth_n r_o and_o lift_v the_o pipe_n so_o far_o up_o till_o it_o have_v the_o position_n of_o the_o pipe_n sf_n and_o you_o shall_v see_v the_o water_n hang_v in_o it_o between_o f_o and_o o._n last_o bring_v the_o say_a orifice_n complete_o above_o the_o water_n till_o it_o have_v the_o position_n of_o the_o tub_n tm_n yet_o shall_v the_o water_n still_o hang_v in_o it_o as_o mp_n the_o first_o question_n be_v what_o sustain_v the_o water_n io_o for_o the_o part_n fi_n be_v sustain_v by_o the_o ambient_fw-la water_n i_o answer_v it_o can_v be_v the_o pulp_n of_o the_o finger_n close_v the_o orifice_n s_o for_o though_o by_o take_v away_o the_o finger_n the_o water_n oi_o fall_v down_o and_o by_o put_v to_o the_o finger_n it_o be_v keep_v up_o yet_o this_o prove_v not_o the_o pulp_n of_o the_o finger_n to_o be_v the_o principal_a and_o immediate_a cause_n i_o say_v then_o the_o water_n oi_o be_v suspend_v by_o the_o weight_n of_o the_o incumb_a air_n rest_v upon_o the_o surface_n hik_fw-mi for_o understand_v this_o consider_v as_o i_o say_v before_o 25._o theorem_fw-la that_o the_o pressure_n of_o the_o air_n upon_o all_o body_n be_v just_o equivalent_a to_o the_o weight_n of_o 34._o foot_n of_o water_n hence_o then_o be_v it_o that_o if_o the_o air_n be_v able_a to_o sustain_v a_o pillar_n of_o water_n 34_o foot_n high_a it_o must_v be_v able_a to_o sustain_v the_o short_a pillar_n oi_o 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see_v four_a that_o the_o pressure_n or_o bensil_n of_o a_o fluid_a can_v affect_v the_o scale_n of_o a_o balance_n but_o only_o the_o natural_a weight_n we_o see_v five_o that_o a_o body_n natural_o heavy_a than_o water_n weigh_v in_o water_n because_o the_o stone_n fg_v make_v the_o water_n about_o it_o 10_o pound_n heavy_a if_o it_o be_v inquire_v whether_o body_n that_o be_v natural_o light_a will_v weigh_v in_o water_n i_o answer_v if_o they_o be_v of_o any_o sensible_a weight_n they_o weigh_v as_o well_o as_o the_o other_o for_o this_o cause_n i_o except_v air._n for_o though_o they_o be_v never_o so_o light_a in_o respect_n of_o water_n yet_o if_o they_o have_v any_o considerable_a gravity_n with_o they_o they_o will_v make_v the_o water_n heavy_a they_o be_v among_o put_v the_o case_n the_o body_n be_v a_o cube_n of_o timber_n of_o six_o inch_n weigh_v sixteen_o ounce_n and_o that_o a_o cube_n of_o water_n of_o that_o quantity_n weigh_v 112_o ounce_n here_o be_v a_o great_a inequality_n between_o their_o natural_a weight_n yet_o if_o that_o piece_n of_o timber_n be_v make_v to_o exist_v in_o the_o middle_n of_o water_n as_o the_o bladder_n do_v it_o will_v make_v it_o 16_o ounce_n heavy_a the_o reason_n be_v this_o these_o 16_o ounce_n be_v either_o support_v by_o a_o surface_n of_o water_n or_o they_o support_v themselves_o this_o last_o be_v impossible_a if_o the_o water_n support_v they_o then_o must_v they_o make_v the_o say_a water_n 16_o ounce_n heavy_a note_v that_o though_o a_o body_n natural_o light_a than_o water_n as_o cork_n may_v be_v say_v to_o weigh_v in_o water_n that_o be_v to_o say_v to_o make_v it_o heavy_a in_o which_o sense_n water_n weigh_v in_o water_n because_o if_o you_o add_v a_o pint_n to_o a_o gallon_n it_o make_v it_o heavy_a yet_o if_o you_o take_v a_o piece_n of_o cork_n and_o knit_v it_o to_o the_o scale_n of_o a_o balance_n by_o a_o thread_n the_o cork_n hang_v among_o the_o water_n the_o scale_n hang_v above_o in_o the_o air_n it_o will_v not_o weigh_v in_o water_n because_o in_o this_o sense_n no_o body_n weigh_v in_o water_n but_o that_o which_o be_v natural_o heavy_a than_o water_n as_o lead_v or_o stone_n in_o this_o sense_n water_n do_v not_o weigh_v in_o water_n as_o will_v be_v see_v in_o the_o 17_o experiment_n experiment_n ix_o figure_n 13._o take_v a_o glass-pipe_n 70_o inch_n long_o or_o thereabout_a and_o of_o any_o wideness_n have_v the_o upper_a end_n h_n hermetical_o seal_v the_o low_a end_n c_o complete_o open_v and_o fill_v it_o with_o mercury_n and_o cause_v a_o diver_n carry_v it_o down_o to_o the_o ground_n of_o the_o sea_n mn_v where_o i_o suppose_v be_v stand_v the_o vessel_n abde_n with_o stagnant_a mercury_n and_o drown_v the_o end_n below_o the_o surface_n ab_fw-la this_o be_v do_v the_o mercury_n fall_v from_o the_o upper_a end_n h_n to_o the_o point_n g_o and_o there_o halt_v the_o space_n hg_v be_v empty_a for_o understand_v this_o experiment_n i_o shall_v propose_v several_a question_n and_o answer_v they_o first_o what_o be_v the_o reason_n why_o the_o mercury_n subside_v and_o sink_v down_o from_o h_n to_o g_z i_o answer_v as_o former_o in_o the_o like_a case_n inequality_n of_o weight_n between_o the_o pondus_fw-la of_o the_o impend_a quicksilver_n and_o the_o potentia_fw-la of_o the_o surface_n of_o the_o stagnant_a quicksilver_n dce_n for_o while_o the_o tub_n be_v complete_o full_a the_o weight_n be_v so_o great_a that_o the_o surface_n dce_n be_v not_o able_a to_o sustain_v it_o therefore_o it_o must_v fall_v down_o see_v motion_n necessary_o follow_v in_o fluids_n upon_o inequality_n of_o weight_n it_o may_v be_v inquire_v second_o why_o it_o halt_v at_o g_o 58_o inch_n from_o ab_fw-la and_o come_v no_o further_o down_o i_o answer_v it_o halt_v at_o g_o because_o when_o it_o have_v fall_v down_o to_o that_o point_n there_o happen_v equality_n of_o weight_n between_o the_o suspend_v pillar_n and_o the_o foresay_a surface_n for_o whatever_o weight_n the_o say_a pillar_n be_v of_o the_o surface_n on_o which_o it_o rest_v be_v of_o the_o same_o in_o a_o word_n the_o pondus_fw-la of_o the_o one_o and_o the_o potentia_fw-la of_o the_o other_o be_v now_o equal_a for_o understand_v this_o consider_v according_a to_o the_o 25_o theorem_fw-la that_o the_o weight_n of_o the_o element_n of_o air_n upon_o the_o surface_v of_o water_n be_v equivalent_a to_o the_o burden_n of_o 34_o foot_n of_o water_n therefore_o the_o first_o and_o visible_a surface_n of_o this_o water_n like_o be_v real_o as_o much_o press_v with_o the_o burden_n of_o the_o atmosphere_n as_o if_o it_o have_v 34_o foot_n of_o water_n upon_o it_o consider_v next_o that_o between_o the_o say_a surface_n and_o the_o ground_n mn_v be_v 34_o foot_n of_o water_n indeed_o consider_v three_o that_o a_o pillar_n of_o water_n 34_o foot_n high_a be_v exact_o of_o the_o same_o weight_n with_o a_o pillar_n of_o mercury_n 29_o inch_n high_a for_o if_o water_n be_v 14_o time_n light_a than_o mercury_n than_o they_o can_v be_v of_o equal_a weight_n unless_o the_o one_o be_v 14_o time_n high_o than_o the_o other_o now_o suppose_v the_o weight_n of_o the_o air_n upon_o the_o surface_n like_a to_o be_v equivalent_a to_o 34_o foot_n of_o water_n or_o which_o be_v the_o same_o thing_n to_o 29_o inch_n of_o mercury_n the_o surface_n of_o the_o stagnant_a mercury_n ab_fw-la must_v be_v as_o much_o burden_v with_o the_o incumb_a water_n and_o the_o air_n together_o as_o if_o it_o have_v real_o rest_v upon_o it_o a_o pillar_n of_o mercury_n 58_o inch_n high_a if_o this_o be_v than_o it_o follow_v by_o necessity_n that_o there_o must_v be_v a_o equality_n of_o weight_n between_o the_o pondus_fw-la of_o the_o mercury_n in_o the_o tub_n and_o the_o potentia_fw-la of_o the_o surface_n dce_n or_o which_o be_v all_o one_o thing_n that_o the_o part_n c_o on_o which_o the_o pillar_n rest_v be_v no_o more_o burden_v than_o the_o part_n d_o or_o e._n for_o if_o 34_o foot_n of_o water_n and_o 34_o foot_n of_o water_n be_v equivalent_a for_o weight_n to_o 58_o inch_n of_o mercury_n then_o must_v the_o part_n d_o and_o e_o be_v as_o much_o burden_v with_o the_o say_a weight_n as_o the_o part_n c_o be_v burden_v with_o the_o pillar_n within_o the_o tub_n see_v both_o be_v of_o the_o same_o height_n therefore_o the_o power_n and_o force_v of_o the_o imaginary_a surface_n of_o the_o stagnant_a mercury_n dce_n be_v of_o the_o same_o strength_n with_o the_o weight_n of_o the_o pillar_n gfb_n and_o this_o let_v we_o see_v the_o reason_n why_o the_o whole_a 70_o inch_n can_v be_v suspend_v for_o if_o the_o outward_a pressure_n that_o be_v upon_o ab_fw-la be_v but_o equivalent_a to_o the_o pressure_n of_o 58_o it_o can_v never_o make_v the_o surface_n dce_o able_a to_o support_v 70._o to_o make_v it_o evident_a if_o any_o doubt_n that_o the_o mercury_n be_v suspend_v by_o the_o weight_n of_o the_o water_n and_o the_o weight_n of_o the_o air_n superad_v let_v a_o diver_n bring_v up_o this_o engine_n to_o the_o top_n of_o the_o water_n and_o he_o will_v find_v the_o one_o half_a to_o have_v fall_v down_o namely_o from_o g_z to_o f_o the_o other_o half_a fb_n remain_v and_o if_o it_o be_v possible_a to_o convey_v this_o experiment_n to_o the_o top_n of_o the_o air_n the_o bearer_n will_v see_v the_o remain_v half_a to_o fall_v down_o likewise_o and_o become_v level_a with_o ab_fw-la for_o where_o no_o pressure_n of_o air_n be_v there_o can_v be_v no_o mercury_n suspend_v this_o fall_v down_o be_v not_o all_o at_o once_o but_o by_o degree_n and_o keep_v a_o proportion_n with_o the_o pressure_n of_o the_o air_n that_o grow_v less_o and_o less_o from_o the_o ground_n to_o the_o top_n from_o this_o experiment_n we_o see_v first_o the_o great_a pressure_n and_o weight_n the_o element_n of_o air_n and_o water_n be_v under_o see_v this_o water_n that_o be_v but_o 34_o foot_n deep_a sustain_v the_o mercury_n between_o g_z and_o f_o 29_o inch_n as_o much_o 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by_o the_o beam_n we_o see_v eighthly_a that_o the_o high_a a_o surface_n be_v it_o be_v the_o weak_a and_o the_o low_a it_o be_v it_o be_v the_o strong_a because_o when_o the_o two_o plain_a body_n be_v pull_v up_o 17_o foot_n they_o fall_v asunder_o we_o see_v ninthly_a the_o vanity_n of_o the_o common_a opinion_n that_o maintain_v two_o plain_a body_n to_o cleave_v close_o together_o for_o fear_n of_o vacuity_n and_o that_o neither_o humane_a nor_o angelic_a strength_n be_v able_a to_o break_v this_o union_n without_o the_o rupture_n and_o fracture_n of_o they_o both_o it_o may_v be_v inquire_v upon_o supposition_n that_o the_o inferior_a plain_n have_v four_o hole_n cut_v through_o the_o middle_n square-wise_a as_o abcd_v in_o the_o 18_o figure_n what_o phenomena_n will_v follow_v before_o i_o answer_v consider_v that_o this_o figure_n represent_v the_o inner_a face_n of_o the_o brass-plate_n cdno_n of_o the_o 17_o figure_n which_o as_o be_v suppose_v be_v four_o inch_n from_o side_n to_o side_n and_o consequent_o contain_v 16_o square_a inch_n now_o imagine_v the_o under_o plain_a cdno_n while_o it_o be_v unite_v to_o the_o uppermost_a to_o have_v four_o square_a inch_n cut_v out_o of_o it_o as_o abcd._n these_o thing_n be_v right_o conceive_v and_o understand_v i_o say_v when_o the_o say_v hole_n be_v cut_v through_o the_o beam_n tu_fw-la that_o now_o sustain_v 350_o pound_n shall_v by_o this_o mean_n only_o sustain_v 250_o pound_n to_o make_v this_o evident_a consider_v that_o the_o under_o plain_a as_o be_v say_v contain_v 16_o square_a inch_n next_o that_o the_o top_n of_o the_o inferior_a water_n upon_o which_o the_o plain_a rest_n contain_v as_o many_o and_o that_o every_o inch_n of_o the_o water_n weigh_v 25_o pound_n see_v the_o whole_a as_o be_v suppose_v before_o weigh_v 400_o pound_n now_o i_o say_v the_o beam_n must_v support_v only_o 250_o pound_n of_o the_o water_n iklm_n because_o these_o hole_n be_v make_v the_o top_n of_o the_o inferior_a 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no_o more_o and_o no_o less_o before_o i_o put_v a_o close_a to_o this_o experiment_n it_o will_v be_v needful_a to_o answer_v a_o objection_n propose_v by_o doctor_n more_o in_o his_o antidote_n against_o atheism_n against_o the_o pressure_n of_o the_o air_n which_o in_o effect_n militat_v by_o parity_n of_o reason_n against_o the_o pressure_n of_o the_o water_n likewise_o he_o argue_v thus_o if_o the_o air_n be_v endow_v with_o so_o much_o pressure_n as_o be_v common_o affirm_v than_o it_o ought_v to_o compress_v squeeze_v or_o strain_v together_o any_o soft_a body_n that_o it_o environ_n as_o v_o g._n butter_n put_v the_o case_n then_o there_o be_v a_o piece_n of_o butter_n four_o inch_n broad_a every_o way_n and_o one_o inch_n thick_a contain_v 16_o square_a inch_n upon_o every_o side_n as_o may_v be_v represent_v by_o the_o figure_n 19_o in_o this_o case_n there_o be_v a_o far_o great_a pressure_n upon_o the_o two_o face_n than_o upon_o the_o four_o edge_n and_o therefore_o it_o 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only_o burden_v with_o 50_o pound_n as_o be_v the_o edge_n a._n the_o other_o two_o edge_n sustain_v each_o one_o as_o much_o second_o though_o this_o be_v yet_o i_o affirm_v the_o two_o side_n to_o be_v no_o more_o burden_v than_o the_o edge_n that_o be_v to_o say_v the_o pressure_n upon_o the_o side_n be_v equal_a to_o the_o pressure_n upon_o the_o edge_n which_o i_o prove_v thus_o the_o pressure_n upon_o the_o part_n m_o be_v equal_a to_o the_o pressure_n upon_o the_o part_n k_o but_o the_o pressure_n upon_o the_o edge_n b_o be_v equal_a to_o the_o pressure_n upon_o the_o part_n m_o therefore_o the_o pressure_n upon_o b_o be_v equal_a to_o the_o pressure_n upon_o k._n the_o major_a proposition_n be_v evident_a because_o the_o pillar_n of_o water_n lm_o be_v of_o the_o same_o weight_n with_o the_o pillar_n of_o water_n ik_fw-mi the_o minor_a be_v also_o evident_a because_o the_o pillar_n bc_n be_v of_o the_o same_o weight_n with_o the_o pillar_n lm_o now_o if_o the_o pressure_n upon_o the_o edge_n b_o be_v equal_a to_o the_o pressure_n upon_o m_n and_o k_o it_o must_v be_v likewise_o equal_a to_o the_o pressure_n upon_o h_n and_o f._n if_o this_o be_v than_o the_o edge_n of_o the_o butter_n b_o must_v be_v no_o more_o press_v than_o the_o side_n fhkm_n therefore_o the_o water_n bc_n can_v no_o more_o yield_v to_o the_o water_n efghiklm_n and_o suffer_v the_o butter_n to_o be_v squeeze_v out_o at_o b_o than_o the_o water_n lm_o can_v yield_v to_o the_o water_n efghik_fw-mi and_o suffer_v the_o butter_n to_o be_v squeeze_v out_o at_o m._n if_o any_o man_n shall_v insist_v and_o say_v that_o the_o upper_a face_n bear_v the_o weight_n of_o four_o pillar_n which_o weigh_v 400_o pound_n but_o the_o
that_o honourable_a and_o worthy_a person_n mr._n boyl_n who_o conclusion_n and_o trial_n i_o never_o much_o call_v in_o question_n but_o find_v this_o opposite_a and_o contrary_a to_o what_o i_o have_v demonstrate_v i_o shall_v crave_v liberty_n to_o say_v amicus_fw-la socrates_n amicus_fw-la plato_n sed_fw-la magis_fw-la amica_fw-la veritas_fw-la and_o shall_v therefore_o examine_v it_o as_o brief_o as_o may_v be_v the_o word_n of_o the_o publisher_n be_v as_o follow_v the_o author_n of_o this_o invention_n be_v the_o noble_a robert_n boyl_n who_o be_v please_v to_o comply_v with_o our_o desire_n of_o communicate_v it_o in_o english_a to_o the_o curious_a in_o england_n as_o by_o insert_v the_o same_o in_o the_o latin_a translation_n of_o his_o hydrostatical_a paradox_n he_o have_v gratify_v the_o ingenious_a abroad_o and_o it_o will_v doubtless_o be_v the_o more_o welcome_a for_o as_o much_o as_o no_o body_n we_o know_v of_o have_v so_o much_o as_o attempt_v to_o determine_v how_o 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depress_v under_o water_n the_o lead_n and_o glass_n be_v tie_v by_o a_o string_n to_o a_o scale_n of_o a_o good_a balance_n in_o who_o other_o there_o be_v put_v so_o much_o weight_n as_o suffice_v to_o counterpoise_v the_o bubble_n as_o it_o hang_v free_o in_o the_o midst_n of_o the_o water_n then_o with_o a_o long_a iron_n forceps_fw-la i_o careful_o break_v off_o the_o seal_a end_n of_o the_o bubble_n under_o water_n so_o as_o no_o bubble_n of_o air_n appear_v to_o emerge_n or_o escape_n through_o the_o water_n but_o the_o liquor_n by_o the_o weight_n of_o the_o atmosphere_n spring_v into_o the_o unreplenished_a part_n of_o the_o glass-bubble_n and_o fill_v the_o whole_a cavity_n about_o half_a full_a and_o present_o as_o i_o foretell_v the_o bubble_n subside_v and_o make_v the_o scale_n it_o be_v fasten_v to_o preponderate_a so_o much_o that_o there_o need_v 4_o drachm_n and_o 38_o grain_n to_o reduce_v the_o balance_n to_o a_o equilibrium_n then_o take_v out_o the_o bubble_n with_o the_o water_n in_o it_o we_o do_v by_o the_o help_n of_o a_o flame_n of_o a_o candle_n wary_o apply_v drive_v out_o the_o water_n which_o otherwise_o be_v not_o easy_o exclude_v at_o a_o very_a narrow_a stem_n into_o a_o glass_n counterpoise_v before_o and_o we_o find_v it_o as_o we_o expect_v to_o weigh_v about_o four_o drachm_n and_o 30_o grain_n beside_o some_o little_a that_o remain_v in_o the_o egg_n and_o some_o small_a matter_n that_o may_v have_v be_v rarify_v into_o vapour_n which_o add_v to_o the_o piece_n of_o glass_n that_o be_v break_v off_o under_o water_n and_o lose_v there_o may_v very_o well_o amount_v to_o 7_o or_o 8_o grain_n by_o which_o it_o appear_v not_o only_o that_o water_n have_v some_o weight_n in_o water_n but_o that_o it_o weigh_v very_o near_o or_o altogether_o as_o much_o in_o water_n as_o the_o self_n same_o portion_n of_o liquor_n will_v weigh_v in_o the_o air._n the_o same_o day_n we_o repeat_v the_o experiment_n with_o another_o seal_a bubble_n large_a than_o the_o former_a be_v as_o big_a as_o a_o great_a hens-egg_n and_o have_v break_v this_o under_o water_n it_o grow_v heavy_a by_o 7._o drachm_n and_o 34_o grain_n and_o have_v take_v out_o the_o bubble_n and_o drive_v out_o the_o water_n into_o a_o counterpoised_a glass_n we_o find_v the_o transvasated_a liquor_n to_o amount_v to_o the_o same_o weight_n abate_v 6_o or_o 7_o grain_n which_o it_o may_v well_o have_v lose_v upon_o such_o account_n as_o have_v be_v new_o mention_v thus_o he_o figure_n 24._o the_o design_n then_o of_o this_o experiment_n be_v to_o prove_v that_o water_n weigh_v in_o water_n but_o it_o seem_v there_o be_v here_o a_o very_a great_a mistake_n which_o i_o shall_v make_v out_o after_o this_o manner_n for_o which_o cause_n let_v this_o schematism_n 24_o represent_v the_o experiment_n already_o describe_v the_o glass-bubble_n than_o be_v epfr_n the_o stem_n be_v hc_a the_o weight_n that_o sink_v the_o glass_n be_v b._n the_o surface_n of_o water_n 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counterpoise_n with_o the_o ark._n if_o any_o be_v desirous_a to_o know_v the_o quantity_n of_o it_o i_o answer_v if_o lead_v be_v 13_o time_n natural_o heavy_a than_o water_n you_o will_v find_v that_o a_o piece_n of_o lead_n about_o 16_o inch_n every_o way_n will_v do_v it_o if_o it_o be_v object_v that_o when_o a_o man_n body_n be_v within_o the_o ark_n the_o weight_n of_o the_o footstool_n must_v be_v less_o even_o as_o much_o less_o as_o be_v the_o weight_n of_o the_o man_n who_o i_o suppose_v to_o weigh_v 224_o pound_n or_o 14_o stone_n i_o answer_v the_o whole_a weight_n of_o the_o man_n be_v not_o to_o be_v deduce_v from_o the_o footstool_n but_o the_o one_o half_a only_a and_o the_o reason_n be_v because_o a_o man_n body_n be_v of_o the_o same_o specific_a and_o natural_a weight_n with_o water_n it_o can_v preponderat_fw-la or_o weigh_v in_o water_n because_o magnitude_n only_o natural_o heavy_a than_o water_n weigh_v in_o water_n as_o lead_v or_o stone_n therefore_o see_v 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so_o advantageous_a for_o drain_n moist_a ground_n where_o there_o be_v no_o live_a spring_n as_o that_o of_o plant_v abundance_n of_o timber_n which_o will_v best_o agree_v with_o that_o kind_n of_o soil_n for_o by_o this_o mean_n what_o be_v former_o noisome_a and_o superfluous_a be_v now_o convert_v partly_o into_o the_o useful_a aliment_n of_o the_o timber_n and_o partly_o send_v abroad_o in_o insensible_a exhalation_n which_o according_a to_o the_o nature_n of_o the_o emit_v plant_n prove_v either_o very_a noisome_a or_o wholesome_a to_o the_o neighbour-inhabitant_n great_a care_n therefore_o will_v be_v have_v in_o the_o choice_n of_o such_o tree_n as_o be_v to_o be_v plant_v in_o such_o moist_a ground_n as_o be_v near_o to_o man_n dwelling_n or_o place_n of_o concourse_n they_o be_v not_o fool_n who_o prefer_v fir_n and_o lime-tree_n in_o their_o avenue_n to_o oak_n and_o elm_n let_v the_o effect_n of_o the_o atomical_a exhalation_n of_o alder_n and_o oak_n upon_o fine_a linen_n and_o white_a skin_n be_v more_o particular_o notice_v have_v speak_v somewhat_o of_o the_o aliment_n and_o growth_n of_o plant_n i_o shall_v in_o the_o next_o place_n give_v a_o short_a hint_n at_o the_o motion_n of_o their_o aliment_n especial_o of_o tree_n that_o the_o alimentary_a juice_n of_o plant_n be_v much_o thin_a than_o that_o of_o animal_n no_o man_n i_o suppose_v will_v deny_v see_v that_o be_v convey_v through_o the_o trunk_n or_o body_n of_o the_o plant_n by_o inperceptible_a pore_n but_o this_o for_o the_o most_o part_n be_v send_v through_o all_o the_o member_n through_o patent_n and_o manifest_a vessel_n but_o how_o the_o nourish_a and_o vital_a juice_n in_o plant_n do_v move_v and_o by_o what_o passage_n have_v not_o yet_o be_v make_v know_v by_o any_o that_o i_o have_v see_v i_o make_v once_o a_o few_o observation_n for_o try_v of_o the_o motion_n of_o the_o aliment_n of_o tree_n which_o breed_v in_o i_o this_o conjecture_n the_o nutritive_a juice_n of_o tree_n be_v transmit_v both_o to_o the_o root_n and_o branch_n through_o the_o heart_n or_o pitch_n and_o woody_a pore_n of_o the_o timber_n and_o when_o it_o be_v come_v to_o the_o extreme_a part_n it_o return_v again_o from_o the_o top_n of_o the_o root_n and_o branch_n between_o the_o bark_n and_o timber_n into_o these_o forename_a interior_a passage_n and_o so_o back_o to_o the_o extremity_n again_o and_o that_o continual_o so_o long_o as_o the_o life_n remain_v and_o because_o the_o substance_n of_o that_o skin_n or_o bark_n which_o invest_v the_o fibre_n of_o the_o root_n be_v more_o open_a and_o porous_a than_o that_o which_o be_v upon_o the_o outward_a branch_n therefore_o it_o seem_v that_o so_o much_o as_o be_v superad_v to_o the_o stock_n of_o the_o former_a aliment_n from_o the_o earth_n be_v convey_v to_o the_o heart_n and_o pitch_n by_o mean_n of_o and_o together_o with_o that_o part_n of_o the_o retrograd_v juice_n which_o return_v from_o nourish_v and_o enliven_a the_o timber_n of_o the_o root-branche_n for_o it_o be_v a_o easy_a experiment_n to_o make_v the_o top_n of_o any_o tree_n become_v root_n by_o lay_v it_o down_o and_o receive_v the_o impression_n of_o the_o life_n of_o the_o tree_n common_a to_o the_o whole_a mass_n of_o alimentary_a juice_n like_o the_o i_o will_v in_o animal_n mix_v with_o the_o blood_n of_o the_o veni-cave_n before_o it_o come_v to_o the_o heart_n this_o motion_n be_v not_o to_o be_v think_v always_o alike_o swift_a or_o of_o equal_a celerity_n for_o the_o vital_a juice_n of_o the_o tree_n become_v so_o thick_a and_o oleagenous_a in_o the_o winter_n that_o the_o motion_n thereof_o to_o the_o outward_a be_v scarce_o discernible_a though_o the_o preparation_n of_o the_o gem_n both_o for_o leaf_n and_o flower_n be_v observe_v by_o the_o curious_a and_o can_v be_v distinguish_v even_o in_o the_o cold_a season_n and_o the_o return_v inward_a be_v in_o so_o small_a quantity_n that_o they_o be_v rather_o like_o vapour_n than_o liquid_a juice_n indeed_o some_o tree_n when_o their_o root-branche_n be_v cut_v even_o in_o winter_n will_v yield_v no_o small_a quantity_n of_o a_o acid_a liquor_n which_o by_o addition_n of_o the_o recent_a leffas_n from_o the_o earth_n smell_v evident_o of_o the_o matrix_fw-la from_o which_o it_o do_v proceed_v moreover_o the_o passage_n especial_o from_o the_o branch_n to_o the_o trunk_n be_v so_o straighten_a and_o contract_v that_o the_o bark_n cleave_v to_o the_o timber_n as_o every_o woodman_n know_v but_o so_o soon_o as_o the_o warm_a spring_n have_v attenuate_v the_o ever-flowing_a juice_n in_o the_o whole_a tree_n then_o do_v it_o become_v turgid_a and_o more_o aqueous_a over_o all_o the_o passage_n and_o channel_n both_o in_o the_o trunk_n and_o among_o the_o tunicle_n and_o particular_a skin_n be_v so_o
vivens_fw-la in_o animal_n albeit_o i_o doubt_v not_o but_o the_o red_a spirit_n or_o blood_n in_o most_o terrestrial_a animal_n be_v the_o first_o product_n of_o the_o primigenial_a juice_n and_o therefore_o not_o improper_o name_v the_o true_a callidum_fw-la innatum_fw-la of_o these_o creature_n by_o the_o noble_a and_o ingenious_a harvey_n in_o his_o book_n de_fw-fr generatione_n neither_o do_v i_o scruple_n to_o yield_v that_o the_o heart_n and_o appendent_a vessel_n be_v the_o first_o form_v and_o perfect_v part_n in_o the_o hot_a kind_n of_o animal_n yet_o i_o be_o confident_a to_o affirm_v that_o in_o many_o of_o the_o cold_a and_o moist_a kind_n of_o aquaticks_n if_o not_o in_o all_o neither_o the_o redness_n and_o heat_n of_o the_o vital_a spirit_n nor_o the_o formation_n of_o the_o heart_n liver_n etc._n etc._n be_v previous_o requisite_a to_o the_o structure_n and_o existence_n of_o the_o other_o part_n see_v the_o light_n of_o life_n which_o at_o first_o inhabit_v the_o clear_a and_o cristalin_n radical_a moisture_n before_o the_o formation_n of_o any_o particular_a part_n do_v always_o move_v in_o every_o live_a creature_n according_a to_o their_o particular_a exigency_n without_o any_o absolute_a dependency_n upon_o any_o one_o part_n or_o member_n except_v singular_a condition_n wherein_o they_o may_v be_v state_v as_o to_o its_o substance_n light_n and_o motion_n there_o be_v in_o some_o animal_n a_o simple_a undulation_n in_o other_o a_o slow_a creep_a but_o in_o the_o more_o perfect_a a_o impetuous_a run_n or_o rather_o fly_v of_o the_o vital_a spirit_n necessary_o require_v for_o illumination_n and_o vivification_n of_o the_o whole_a for_o confirmation_n i_o shall_v give_v you_o this_o singular_a experiment_n about_o the_o middle_n of_o march_n the_o sperm_n of_o frog_n according_a to_o the_o number_n of_o prolific_a egg_n therein_o contain_v send_v forth_o a_o multitude_n of_o small_a round_a creature_n cover_v with_o a_o black_a and_o movable_a frock_n which_o about_o the_o end_n of_o march_n and_o beginning_n of_o april_n by_o the_o gyration_n of_o a_o tail_n behind_o like_o a_o rudder_n do_v slow_o move_v their_o body_n in_o the_o water_n at_o this_o time_n have_v open_v several_n of_o they_o i_o find_v nothing_o apparent_a to_o the_o naked_a eye_n but_o a_o clear_a th●n_n membran_n under_o the_o forenamed_a black_a frock_n within_o which_o be_v contain_v a_o clear_a water_n and_o some_o small_a fibre_n like_o intestine_n and_o in_o the_o forepart_n a_o small_a orifice_n like_o a_o mouth_n about_o the_o middle_n of_o april_n its_o motion_n be_v more_o vigorous_a and_o the_o tripes_n within_o be_v most_o evident_a lie_v in_o a_o very_a fine_a circular_a order_n but_o as_o yet_o there_o be_v no_o vestige_n of_o heart_n blood_n or_o liver_n etc._n etc._n about_o the_o middle_n of_o may_n the_o foot_n form_v like_o small_a thread_n appear_v through_o the_o black_a coat_n within_o the_o breast_n the_o heart_n be_v then_o visible_a of_o a_o white_a and_o fibrous_a substance_n the_o liver_n be_v white_a and_o the_o gall_n therein_o easy_o discern_v but_o which_o be_v the_o head_n of_o this_o experiment_n the_o vital_a spirit_n in_o form_n of_o a_o clear_a and_o pure_a water_n be_v manifest_o receive_v by_o the_o nervous_a heart_n and_o by_o the_o contraction_n thereof_o transmit_v to_o all_o the_o body_n through_o white_a transparent_a vessel_n which_o be_v full_a of_o this_o liquor_n do_v represent_v the_o lymphatic_a rather_o than_o the_o sanguiferous_a vein_n last_o of_o all_o do_v the_o pneumatick_a vesicles_n which_o in_o this_o amphibium_fw-la supply_v the_o place_n of_o the_o lung_n arise_v in_o the_o breast_n after_o who_o production_n the_o lympid_a and_o crystalin_a liquor_n while_o the_o heart_n be_v turgid_a therewith_o seem_v to_o be_v red_a and_o fiery_a but_o in_o the_o other_o vessel_n it_o be_v of_o a_o faint_a pale_a colour_n until_o about_o or_o near_o the_o end_n of_o june_n the_o frock_n be_v cast_v off_o and_o a_o perfect_a frog_n form_v the_o whole_a vessel_n be_v full_a of_o blood_n or_o a_o red_a substance_n very_o thin_a and_o clear_a the_o liver_n and_o pneumatick_a vesicles_n etc._n etc._n become_v red_a and_o rosy_a so_o that_o the_o blood_n in_o this_o amphibium_fw-la which_o in_o the_o more_o perfect_a animal_n be_v first_o complete_a seem_v to_o be_v the_o last_o part_n in_o attain_v its_o perfection_n that_o salmond_n and_o great_a trout_n have_v a_o aqueous_a liquor_n which_o run_v through_o their_o artery_n and_o vein_n before_o their_o blood_n attain_v the_o true_a consistency_n and_o saturat_fw-la tincture_n i_o be_o certain_a whether_o it_o hold_v in_o many_o other_o i_o suspect_v but_o there_fw-mi not_o affirm_v hence_o it_o may_v be_v if_o man_n observation_n be_v frequent_a in_o all_o kind_n of_o anatomical_a inspection_n in_o several_a embryo_n of_o every_o species_n it_o will_v be_v find_v evident_a that_o the_o blood_n in_o all_o these_o call_v 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d 〈◊〉_d have_v its_o immediate_a original_n from_o a_o simple_a homogeneous_a and_o uniform_a liquor_n and_o do_v by_o gradual_a and_o frequent_a influence_n of_o the_o vital_a ferment_n of_o the_o heart_n receive_v at_o length_n the_o full_a tincture_n essence_n and_o subsistence_n requisite_a for_o vivification_n and_o illumination_n of_o the_o whole_a member_n whether_o this_o experiment_n do_v not_o sufficient_o impugn_v the_o universality_n of_o the_o heart_n first_o live_n the_o original_n of_o the_o gall_n from_o the_o fervour_n and_o ebullition_n of_o the_o blood_n the_o production_n of_o the_o blood_n by_o the_o liver_n and_o many_o other_o ancient_a error_n let_v any_o judge_n who_o will_v but_o take_v pain_n to_o make_v and_o compare_n harvey_v trial_n de_fw-la ovo_fw-la with_o this_o of_o the_o porwigl_n or_o gyrinus_n ab_fw-la ovo_fw-la yea_o if_o the_o aqueous_a liquor_n be_v not_o one_o with_o the_o vital_a spirit_n and_o subsequent_a blood_n than_o my_o eye_n and_o taste_n be_v altogether_o erroneous_a moreover_o it_o be_v to_o be_v wish_v that_o physician_n will_v not_o simple_o stand_v upon_o the_o galenick_n supposition_n of_o the_o four_o allege_a component_n of_o the_o blood_n nor_o any_o such_o or_o equivalent_a fancy_n of_o the_o latter_a chemist_n but_o that_o they_o will_v serious_o examine_v the_o first_o original_n and_o rise_v thereof_o from_o the_o primigenial_a juice_n or_o liquamen_fw-la the_o progress_n and_o perfection_n of_o its_o tincture_n how_o many_o renovation_n or_o new_a tincture_n it_o be_v capable_a of_o the_o vast_a difference_n between_o the_o blood_n of_o old_a and_o young_a animal_n though_o it_o may_v be_v they_o be_v both_o univocal_a substance_n while_o in_o their_o integrity_n within_o the_o vessel_n with_o the_o specific_a discrimination_n not_o only_o of_o that_o of_o any_o one_o aquatic_a from_o any_o volatile_a or_o terrestrial_a but_o likewise_o of_o any_o one_o species_n live_v in_o the_o same_o element_n with_o these_o that_o enjoy_v the_o same_o aliment_n but_o of_o a_o different_a species_n and_o last_o the_o variety_n of_o particular_a constitution_n and_o singular_a property_n of_o individual_a animal_n radicate_v in_o the_o fountain_n of_o life_n or_o first_o original_n of_o the_o blood_n if_o these_o thing_n and_o many_o more_o be_v true_o inquire_v after_o though_o the_o cook_n be_v sometime_o necessitate_v to_o throw_v away_o some_o of_o the_o broth_n with_o the_o scum_n i_o doubt_v not_o but_o the_o neoterick_n invention_n of_o transfusion_n of_o blood_n will_v prove_v altogether_o ridiculous_a and_o the_o ancient_a mistake_n of_o too_o much_o profusion_n of_o this_o treasure_n by_o phlebotomy_n may_v suffer_v some_o reasonable_a check_n from_o infallible_a experience_n and_o sound_a reason_n not_o here_o to_o be_v mention_v there_o be_v truth_n in_o natural_a philosophy_n which_o i_o doubt_v not_o but_o sound_a reason_n and_o experience_n will_v convince_v the_o vain_a world_n of_o in_o due_a time_n observation_n xxiii_o this_o observation_n be_v concern_v the_o aliment_n and_o growth_n of_o plant_n the_o inquisitive_a wit_n of_o this_o and_o the_o last_o age_n have_v reject_v the_o old_a opinion_n of_o the_o earth_n nourish_v of_o plant_n or_o be_v convert_v into_o their_o aliment_n have_v make_v many_o laudable_a experiment_n for_o find_v out_o the_o material_n and_o mean_n of_o their_o growth_n and_o vegetation_n such_o as_o sir_n francis_n bacon_n observe_v of_o germination_n helmont_n of_o a_o willow_n and_o the_o noble_a mr._n boyl_n of_o a_o gourd_n etc._n etc._n for_o though_o a_o tree_n be_v cut_v down_o and_o the_o root_n thereof_o wax_v old_a in_o the_o earth_n and_o the_o stock_n die_v in_o the_o ground_n yet_o through_o the_o send_v of_o water_n it_o will_v bud_v as_o job_n speak_v chap._n 14.7_o 8_o 9_o i_o shall_v add_v a_o short_a remark_n of_o a_o willow_n grow_v without_o earth_n upon_o the_o 13_o of_o april_n 1662._o i_o set_v a_o