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="013/01/260.jpg" pagenum="230"/>
              per, hinders it from falling, as we have
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              elſewhere more fully declar'd. </s>
              <s>Upon
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              theſe grounds we conjectur'd that in caſe
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              we could procure two marbles exactly
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              ground to one another; and in caſe we
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              could alſo ſufficiently evacuate our Re­
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              ceiver, the lower ſtone would, for want
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              of the wonted and ſuſtaining preſſure of
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              the Air, fall from the upper. </s>
              <s>But the
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              further tryal of this Experiment we muſt,
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              unleſs your Lordſhip think it worth Your
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              making at
                <emph type="italics"/>
              Paris,
                <emph.end type="italics"/>
              put off till a fitter
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              opportunity. </s>
              <s>For where we now are, we
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              cannot procure marbles ſo exactly ground,
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              that they will ſuſtaine one another in the
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              Air, above a minute or two, which is a
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              much ſhorter time than the emptying of
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              our Receiver requires. </s>
              <s>We did indeed
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              try to make our marbles ſtick cloſe to­
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              gether by moiſtening their polliſhed ſur­
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              faces with rectifi'd ſpirit of Wine, in re­
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              gard that Liquor by its ſudden avolation
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              from marble, if powr'd thereon, without
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              leaving it moiſt or leſs ſmooth, ſeem'd
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              unable to ſuſtaine them together after the
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              manner of a glutinous body, and yet
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              ſeem'd ſufficient to exclude and keep out
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              the Air. </s>
              <s>But this we try'd to little pur­
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              poſe, for having convey'd into the Recei-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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