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

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb xlink:href="013/01/181.jpg" pagenum="151"/>
            <p type="main">
              <s>Now of this Experiment there are two
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              or three Circumſtances yet to be men­
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              tion'd, which are no leſs then thoſe alrea­
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              dy recited, pertinent to our preſent pur­
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              poſe. </s>
            </p>
            <p type="main">
              <s>In the firſt place then, when the great­
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              er part of the Air had been pump'd out of
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              the Receiver, the riſing bubbles aſcend­
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              ed ſo very ſlowly in the Pipe, that their
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              Progreſs was ſcarce diſcernable; which
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              ſeem'd to proceed from this, That their
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              bigneſs was ſuch, That they could not
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              ſufficiently extend themſelves in the
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              cavity of the Glaſs, without preſſing
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              on both hands againſt the ſides of it,
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              whereby they became of more difficult
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              extruſion to the Water. </s>
              <s>And though it
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              may ſeem ſtrange theſe bubbles ſhould
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              be of any conſiderable bulk, ſince 'tis
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              like they conſiſted of leſſer parcels of
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              the Air lurking in the Water, then thoſe
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              that were vigorous enough to make their
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              way through long before them: yet they
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              were commonly much larger then before,
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              ſome of them being equal in quantity to
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              four or five Peas: Whether this their in­
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              creaſe of bulk proceeded from the greater
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              decrement of the preſſure of the Air, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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