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

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="013/01/290.jpg" pagenum="260"/>
              was employ'd, the Bladder ſeem'd again
                <lb/>
              a little to preponderate. </s>
              <s>Afterwards
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              the Air in the Glaſs being begun to be
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              drawn out, the Biadder began (according
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              to the formerly mention'd Obſervations)
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              to expand it ſelf, and manifeſtly to out­
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              weigh the oppoſite weight, drawing
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              down the Scale to which it was faſtned
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              very much beneath the other, eſpecially
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              when the Air had ſwell'd it to its full ex­
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              tent. </s>
            </p>
            <p type="main">
              <s>This done, we very leiſurely let in the
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              external Air; and obſerv'd, that upon
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              the flagging of the Bladder, the Scale
                <lb/>
              whereto it was faſtned, not onely by de­
                <lb/>
              grees return'd to an
                <emph type="italics"/>
              Æquilibrium
                <emph.end type="italics"/>
              with the
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              other, but at length was a little out­
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              weighed by it. </s>
            </p>
            <p type="main">
              <s>But becauſe we ſuſpected there
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              might have interven'd ſome unheeded
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              Circumſtance in this laſt part of the Ex­
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              periment, we would not preſently take
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              out the Scales, nor meddle with the Co­
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              ver, but leaving things as they were, we
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              perceiv'd, that after a little while the
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              Bladder began again to preponderate, and
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              by degrees to ſink lower and lower for
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              divers hours; wherefore, leaving the
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              Veſſel cloſ'd up all night, we repair'd to it </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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