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

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      <text>
        <body>
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            <p type="main">
              <s>
                <pb xlink:href="013/01/112.jpg" pagenum="72"/>
              ting into one of theſe, wherein it had but
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              little room to expand and diſplay it ſelf,
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              might preſs as much upon all parts of the
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              internal ſurface of the Veſſel, and upon
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              the included Bodies, as a greater quan­
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              tity of Air in a Veſſel in whoſe capacity
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              it might finde more room to expand it
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              ſelf. </s>
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            <p type="main">
              <s>The other thing that we were to ad­
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              vertiſe, is, That 'tis not every ſmall crack
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              that can make ſuch a Receiver as is of a
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              roundiſh Figure altogether uſeleſs to our
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              Experiment, in regard that upon the ex­
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              ſuction of the internal Air, the ambient
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              Air on all ſides preſſing the Glaſs inwards
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              or towards the middle, does conſequent­
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              ly thruſt the Lips of the crack cloſer, and
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              ſo rather cloſe then increaſe it. </s>
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            <p type="main">
              <s>This I mention partly becauſe Recei­
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              vers fit for our turn are more eaſily
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              crack'd then procur'd, and therefore ought
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              not to be unneceſſarily thrown away as
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              unſerviceable: And partly becauſe I think
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              it becomes one that profeſſes himſelf a
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              faithful Relator of Experiments, not to
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              conceal from Your Lordſhip, that after a
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              few of the foregoing Experiments were
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              made, there happen'd in the great Recei­
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              ver a crack of about a Span long, begin-</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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