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="013/01/158.jpg" pagenum="128"/>
              ther, will gather up all the little bubbles,
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              and unite them with itſelf into one great
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              one, ſo that if by reinverting the Tube
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              you let that bubble return to the open
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              end of it, you will have a much cloſer Mer­
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              curial Cylinder then before, and need but
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              to adde a very little Quick-ſilver more to
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              fill up the Tube exactly. </s>
              <s>And laſtly, as for
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              thoſe leſſer and inconſpicuous parcels of
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              Air which cannot this way be gleaned up,
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              You may endeavor before you invert the
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              Tube, to free the Quick-ſilver from them
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              by ſhaking the Tube, and gently knock­
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              ing on the out-ſide of it, after every little
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              parcel of Quick-ſilver which you pour in;
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              and afterwards, by forcing the ſmall la­
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              titant bubbles of Air to diſcloſe them­
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              ſelves and break, by imploying a hot Iron
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              in ſuch manner as we lately mention'd. </s>
              <s>I
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              remember that by carefully filling the
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              Tube, though yet it were not quite free
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              from Air, we have made the Mercurial
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              Cylinder reach to 30 Inches and above an
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              eighth, and this in a very ſhort Tube:
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              which we therefore mention, becauſe we
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              have found, by experience, that in ſhort
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              Tubes a little Air is more prejudicial to
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              the Experiment then in long ones, where
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              the Air having more room to expand it </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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