Boyle, Robert, New experiments physico-mechanicall, touching the spring of the air and its effects, 1660

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              reaching as low as the ſurface of the ſub­
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              jacent Water, gave us cauſe to think
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              that if our Pipe had not been broken it
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              would have expanded it ſelf much fur­
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              ther: Wherefore we took out the little
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              Tube, and found that beſides the twenty
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              ſix diviſions formerly mention'd, the
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              Glaſs bubble and ſome part of the Pipe
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              to which the divided Parchment did not
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              reach, amounted to ſix diviſions more.
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              <s>Whereby it appears that the air had taken
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              up one and thirty times as much room as
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              before, and yet ſeem'd capable of a much
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              greater expanſion, if the Glaſs would
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              have permitted it. </s>
              <s>Wherefore, after the
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              former manner, we let in another bubble,
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              that by our gueſs was but half as big as
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              the former, and found, that upon the ex­
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              ſuction of the Air from the Receiver, this
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              little bubble did not onely fill up the
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              whole Tube, but (in part) break through
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              the ſubjacent Water in the Viol, and
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              thereby manifeſt it ſelf to have poſſeſſed
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              ſixty and odde times its former room. </s>
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              <s>Theſe two Experiments are mention'd
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              to make way for the more eaſie belief of
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              that which is now to follow. </s>
              <s>Finding
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              then that our Tube was too ſhort to ſerve
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              our turn, we took a ſlender Quill of Glaſs </s>
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