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="013/01/096.jpg" pagenum="56"/>
            <p type="main">
              <s>Along the ſide of this Tube was paſt­
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              ed a ſtraight narrow piece of Parchment,
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              divided into twenty ſix equal parts, mark­
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              ed with black Lines and Figures, that by
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              them might be meaſur'd both the inclu­
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              ded Air and its dilatation. </s>
              <s>Afterwards
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              we fill'd the Tube with Water almoſt to
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              the top, and ſtopping the open end with
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              a Finger, and inverting the Tube, the
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              Air was permitted to aſcend to the above­
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              mention'd Glaſs bubble. </s>
              <s>And by rea­
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              ſon this aſcent was very ſlow, it gave us
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              the opportunity to mark how much more
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              or leſs then one of the twenty ſix diviſi­
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              ons this Air took up. </s>
              <s>By this means, af­
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              ter a tryal or two, we were inabled to con­
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              vey to the top of the Glaſs a bubble of
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              Air equal enough, as to ſight, to one
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              of thoſe Diviſions: Then the open end
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              of the Tube being put into a ſmall Viol,
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              whoſe bottom was cover'd with Water
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              about half an Inch high; we included
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              both Glaſſes into a ſmall and ſlender Re­
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              ceiver, and cauſed the Pump to be ſet a­
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              work. </s>
              <s>The event was, That at the firſt
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              exſuction of the Air there appear'd not
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              any expanſion of the bubble, comparable
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              to what appear'd at the ſecond, and that
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              upon a very few exſuctions the bubble </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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