Agricola, Georgius, De re metallica, 1912/1950

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="530"/>
              and then they dig out with pointed picks the holes in the cakes, which contain
                <lb/>
              the same kind of copper. </s>
              <s>The head of the round hammer is three palms and
                <lb/>
              a digit long; one end of the head is round and two digits long and thick;
                <lb/>
              the other end is chisel-shaped, and is two digits and a half long. </s>
              <s>The sharp
                <lb/>
              pointed hammer is the same length as the round hammer, but one end is
                <lb/>
              pointed, the other end is square, and gradually tapers to a point.</s>
            </p>
            <figure number="274"/>
            <p type="caption">
              <s>A—TANK. B—BOARD. C—TONGS. D—“DRIED” CAKES TAKEN OUT OF THE TANKS.
                <lb/>
              E—BLOCK. F—ROUNDED HAMMER. G—POINTED HAMMER.</s>
            </p>
            <p type="main">
              <s>The nature of copper is such that when it is “dried” it becomes ash
                <lb/>
              coloured, and since this copper contains silver, it is smelted again in the
                <lb/>
              blast furnaces.
                <emph type="sup"/>
              23
                <emph.end type="sup"/>
              </s>
            </p>
            <p type="main">
              <s>I have described sufficiently the method by which exhausted liquation
                <lb/>
              cakes are “dried”; now I will speak of the method by which they are made
                <lb/>
              into copper after they have been “dried.” These cakes, in order that
                <lb/>
              they may recover the appearance of copper which they have to some extent
                <lb/>
              lost, are melted in four furnaces, which are placed against the second long
                <lb/>
              wall in the part of the building between the second and third transverse
                <lb/>
              walls. </s>
              <s>This space is sixty-three feet and two palms long, and since each of </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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