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="013/01/159.jpg" pagenum="129"/>
              ſelf, does leſs potently preſs upon the ſub­
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              jacent Mercury. </s>
            </p>
            <p type="main">
              <s>And ſince we are fallen upon the conſi­
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              deration of the Altitude of the Mercurial
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              Cylinder, I muſt not conceal from Your
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              Lordſhip an Experiment relating thereun­
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              to, which perhaps will ſet both You and
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              many of your Friends the
                <emph type="italics"/>
              Virtuoſi
                <emph.end type="italics"/>
              a think­
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              ing; and, by diſcloſing ſome things a­
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              bout the Air or Atmoſphere that have
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              ſcarce hitherto been taken notice of, may
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              afford you ſome hints conducive to a fur­
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              ther diſcovery of the ſubject of this E­
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              piſtle. </s>
            </p>
            <p type="main">
              <s>WE took a Glaſs Tube, which,
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                <arrow.to.target n="marg20"/>
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              though it were not much above
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              three Foot long, we made choice of be­
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              cauſe it was of a more then ordinarily
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              even thickneſs. </s>
              <s>This we fill'd with Mer­
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              cury, though not with as much care as we
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              could, yet with ſomewhat more then is
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              wont to be uſed in making the
                <emph type="italics"/>
              Torricellian
                <emph.end type="italics"/>
                <lb/>
              Experiment. </s>
              <s>Then, having according to
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              the manner inverted the Tube, and open'd
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              the mouth of it beneath the ſurface of
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              ſome other Quick-ſilver, that in the Tube
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              fell down to the wonted heigth, leaving, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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