Agricola, Georgius, De re metallica, 1912/1950

Table of figures

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb pagenum="151"/>
            <p type="main">
              <s>The iron block is six digits in length and width; at the upper end it is
                <lb/>
              two digits thick, and at the bottom a digit and a half. </s>
              <s>The iron plate is
                <lb/>
              the same length and width as the iron block, but it is very thin. </s>
              <s>All of these,
                <lb/>
              as I explained in the last book, are used when the hardest kind of veins are
                <lb/>
              hewn out. </s>
              <s>Wedges, locks, and plates, are likewise made larger or smaller.</s>
            </p>
            <figure number="77"/>
            <p type="caption">
              <s>A—SMALLEST OF THE SMALLER HAMMERS. B—INTERMEDIATE. C—LARGEST. D—SMALL
                <lb/>
              KIND OF THE LARGER HAMMER. E—LARGE KIND. F—WOODEN HANDLE. G—HANDLE
                <lb/>
              FIXED IN THE SMALLEST HAMMER.</s>
            </p>
            <p type="main">
              <s>Hammers are of two kinds, the smaller ones the miners hold in
                <lb/>
              one hand, and the larger ones they hold with both hands. </s>
              <s>The former,
                <lb/>
              because of their size and use, are of three sorts. </s>
              <s>With the smallest,
                <lb/>
              that is to say, the lightest, they strike the second “iron tool;” with the
                <lb/>
              intermediate one the first “iron tool;” and with the largest the third “iron
                <lb/>
              tool”; this one is two digits wide and thick. </s>
              <s>Of the larger sort of hammers
                <lb/>
              there are two kinds; with the smaller they strike the fourth “iron tool;”
                <lb/>
              with the larger they drive the wedges into the cracks; the former are three,
                <lb/>
              and the latter five digits wide and thick, and a foot long. </s>
              <s>All swell out in
                <lb/>
              their middle, in which there is an eye for a handle, but in most cases the
                <lb/>
              handles are somewhat light, in order that the workmen may be able to strike
                <lb/>
              more powerful blows by the hammer's full weight being thus concentrated.</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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