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="013/01/051.jpg" pagenum="11"/>
              cavity it poſſeſſes, it will not let in the
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              Air, and yet may be put in or taken out
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              at pleaſure, for uſes to be hereafter men­
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              tioned. </s>
              <s>In order to ſome of which, it is
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              perforated with a little hole, (8) traverſing
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              the whole thickneſs of it at the lower
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              end; through which, and a little braſs
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              Ring (L) faſtned to one ſide, (no matter
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              which) of the bottom of the ſtopple
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              (FG) a ſtring (8, 9, 10) might paſs, to
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              be imploy'd to move ſome things in the
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              capacity of the empty'd Veſſel; without
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              any where unſtopping it. </s>
            </p>
            <p type="main">
              <s>The laſt thing belonging to our Recei­
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              ver, is the ſtop-cock deſigned in the firſt
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              Figure by (N.) for the better faſtening
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              of which to the neck, and exacter excluſi­
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              on of the Air, there was ſoder'd on to
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              the ſhank of the Cock (X) a Plate of
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              Tin, (MTUW) long enough to cover
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              the neck of the Receiver. </s>
              <s>But becauſe
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              the cementing of this was a matter of
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              ſome difficulty, it will not be amiſs to
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              mention here the manner of it, which
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              was, That the cavity of the tin Plate was
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              fill'd with a melted Cement, made of
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              Pitch, Roſin, and Wood-aſhes, well in­
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              corporated; and to hinder this liquid
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              Mixture from getting into the Orifice (Z) </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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