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

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            <pb xlink:href="013/01/327.jpg" pagenum="297"/>
            <p type="main">
              <s>We might here take occaſion to ad­
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              mire, that though Water (as appear'd by
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              the Experiment formerly mention'd of
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              the Pewter Veſſel) ſeems not capable of
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              any conſiderable condenſation, and ſeems
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              not to have interſperſ'd in it any ſtore of
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              Air; yet Quick-ſilver, of no greater bulk
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              then Water, ſhould weigh near fourteen
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              times as much. </s>
              <s>But having onely point­
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              ed at this as a thing worthy of conſidera­
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              tion, we will proceed in our inquiry after
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              the heigth of the Atmoſphere: And to
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              avoid the trouble of Fractions, we will
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              aſſume that Quick-ſilver is fourteen times
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              as heavy as Water, ſince it wants ſo little
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              of being ſo. </s>
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            <p type="main">
              <s>Wherefore having now given us the
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              proportion of Air to Water, and Water
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              to Quick-ſilver, it will be very eaſie to
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              finde the proportion betwixt Air and
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              Quick-ſilver, in caſe we will ſuppoſe the
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              Atmoſphere to be uniformly of ſuch a
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              conſiſtence as the Air we weighed here
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              below. </s>
              <s>For ſince our Engine hath ſuffi­
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                <arrow.to.target n="marg46"/>
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              ciently manifeſted that 'tis the
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              Æquili­
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              brium
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              with the external Air, that in the
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                <emph type="italics"/>
              Torricellian
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              Experiment keeps the Quick­
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              ſilver from ſubſiding; And ſince, by our
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              accurate Experiment formerly mention'd, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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