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="013/01/126.jpg" pagenum="86"/>
              and paſt the poſſibility of being recover'd
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              by the re-admitted Air. </s>
            </p>
            <p type="main">
              <s>Some Circumſtances, beſides thoſe al­
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              ready mention'd, occurr'd in the making
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              of the Experiment, of which theſe are
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              the principal. </s>
            </p>
            <p type="main">
              <s>Firſt, when the Receiver was full of
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              Smoke, if the Cylinder were emptied,
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              immediately upon the turning of the
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              Stop-cock, the Receiver would appear
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              manifeſtly darken'd to his eye that look'd
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              upon the light through it: and this dark­
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              neſs was much leſs when the Receiver was
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              much leſs fill'd with Fumes: It was alſo
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              inſtantaneous, and ſeem'd to proceed from
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              a ſudden change of place and ſcituation
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              in the exhalations, upon the vent ſud­
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              denly afforded them and the Air they
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              were mixt with, out of the Receiver into
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              the Cylinder. </s>
            </p>
            <p type="main">
              <s>The next thing we obſerv'd was, a kinde
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              of
                <emph type="italics"/>
              Halo
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              that appear'd a good while about
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              the Fire, and ſeem'd to be produced by
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              the ſurrounding Exhalations. </s>
            </p>
            <p type="main">
              <s>And laſtly, it is remarkable, That even
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              when the Fumes ſeemed moſt to reple­
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              niſh the Receiver, they did not ſenſibly
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              hinder the Air included in the Bladder
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              from dilating it ſelf after the ſame manner </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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