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

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb xlink:href="013/01/060.jpg" pagenum="20"/>
            <p type="main">
              <s>TO proceed now to the
                <emph type="italics"/>
              Phænomena,
                <emph.end type="italics"/>
                <lb/>
                <arrow.to.target n="marg2"/>
                <lb/>
              exhibited to us by the Engine above
                <lb/>
              deſcribed; I hold it not unfit to begin
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              with what does conſtantly and regularly
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              offer it ſelf to our obſervation, as depend­
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              ing upon the Fabrick of the Engine it ſelf,
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              and not upon the nature of this or that
                <lb/>
              particular Experiment which 'tis employ­
                <lb/>
              ed to try. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg2"/>
                <emph type="italics"/>
              Experi­
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              ment
                <emph.end type="italics"/>
              1.</s>
            </p>
            <p type="main">
              <s>Firſt, Then upon the drawing down
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              of the Sucker, (the Valve being ſhut) the
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              Cylindrical ſpace, deſerted by the Sucker,
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              is left de void of Air; and therefore, up­
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              on the turning of the Key, the Air con­
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              tained in the Receiver ruſhes into the em­
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              ptyed Cylinder, till the Air in both thoſe
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              Veſſels be brought to about an equal
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              meaſure of dilatation. </s>
              <s>And therefore,
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              upon ſhutting the Receiver by returning
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              the Key, if you open the Valve, and force
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              up the Sucker again, you will finde, that
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              after this firſt exſuction you will drive
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              out almoſt a whole Cylinder full of Air:
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              But at the following exſuctions, you will
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              draw leſs and leſs of Air out of the Recei­
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              ver into the Cylinder, becauſe that there
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              will ſtill remain leſs and leſs Air in the </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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