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="013/01/147.jpg" pagenum="117"/>
              various deſcents of the Quick-ſilver com­
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              par'd among themſelves, 'tis not impro­
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              bable that ſome ſuch thing as we hop'd for
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              may thereby be diſcover'd. </s>
              <s>Yet becauſe
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              not onely the ſolid contents of as much
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              of the Glaſs-tube as remains within the
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              concave ſurface of the Receiver, and
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              (which is more difficult) the varying con­
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              tents of the Veſſel containing the Mer­
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              cury, and of as much of the Mercury it
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              ſelf as is not in the Tube, muſt be dedu­
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              cted out of the capacity of the Receiver;
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              but there muſt alſo an allowance be made
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              for this, that the Cylinder that is empty'd
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              by the drawing down of the Sucker, and
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              comes to be fill'd upon the letting of the
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              Air out of the Receiver into it, is not ſo
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              repleniſh'd with Air as the Receiver it ſelf
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              at firſt was: becauſe there paſſes no more
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              Air out of the Receiver into the Cylin­
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              der, then is requiſite to reduce the Air in
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              the cavity of the Cylinder, and in that of
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              the Receiver to the ſame meaſure of dila­
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              tation: Becauſe of theſe (I ſay) and ſome
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              other difficulties that require more skill in
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              Mathematicks then I pretend to, and much
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              more leaſure then my preſent occaſions
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              would allow me, I was willing to refer the
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              nicer conſideration of this matter to ſome </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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