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

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    <archimedes>
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              <s>
                <pb xlink:href="013/01/270.jpg" pagenum="240"/>
              thereby opening an acceſs to the external
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              Air, the Sucker would be immediately
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              drawn down: After this, I ſay, we made
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              this further Experiment, That having by
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              a Man's ſtrength forcibly depreſſ'd the
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              Sucker to the bottom of the Cylinder,
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              and then faſtned weights to the above­
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              named Iron that makes part of that Suc­
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              ker, the preſſure of the external Air find­
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              ing little or nothing in the cavity of the
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              evacuated Cylinder to reſiſt it, did pre­
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              ſently begin to impell the Sucker, with
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              the weights that clogg'd it, towards the
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              upper part of the Cylinder, till ſome
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              ſuch accidental Impediment as we former­
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              ly mention'd, check'd its courſe; and
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              when that rub, which eaſily might be, was
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              taken out of the way, it would continue
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              its aſcent to the top, to the no ſmall won­
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              der of thoſe By ſtanders, that could not
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              comprehend how ſuch a weight could aſ­
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              cend, as it were, of it ſelf; that is, with­
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              out any viſible force, or ſo much as Su­
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              ction to lift it up. </s>
              <s>And indeed it is very
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              conſiderable, that though poſſibly there
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              might remain ſome particles of Air in the
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              Cylinder, after the drawing down of the
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              Sucker; yet the preſſure of a Cylinder of
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              the Atmoſphere, ſomewhat leſs then </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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