Agricola, Georgius, De re metallica, 1912/1950

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="xxx"/>
              a discourse on the finding of veins. </s>
              <s>The third book deals with veins and
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              stringers, and seams in the rocks. </s>
              <s>The fourth book explains the method of
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              delimiting veins, and also describes the functions of the mining officials.
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              </s>
              <s>The fifth book describes the digging of ore and the surveyor's art. </s>
              <s>The
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              sixth book describes the miners' tools and machines. </s>
              <s>The seventh book is
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              on the assaying of ore. </s>
              <s>The eighth book lays down the rules for the work of
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              roasting, crushing, and washing the ore. </s>
              <s>The ninth book explains the
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              methods of smelting ores. </s>
              <s>The tenth book instructs those who are studious
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              of the metallic arts in the work of separating silver from gold, and lead from
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              gold and silver. </s>
              <s>The eleventh book shows the way of separating silver from
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              copper. </s>
              <s>The twelfth book gives us rules for manufacturing salt, soda, alum,
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              vitriol, sulphur, bitumen, and glass.</s>
            </p>
            <p type="main">
              <s>Although I have not fulfilled the task which I have undertaken, on account
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              of the great magnitude of the subject, I have, at all events, endeavoured to fulfil
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              it, for I have devoted much labour and care, and have even gone to some
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              expense upon it; for with regard to the veins, tools, vessels, sluices, machines,
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              and furnaces, I have not only described them, but have also hired illustrators
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              to delineate their forms, lest descriptions which are conveyed by words
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              should either not be understood by men of our own times, or should cause
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              difficulty to posterity, in the same way as to us difficulty is often caused by
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              many names which the Ancients (because such words were familiar to all of
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              them) have handed down to us without any explanation.</s>
            </p>
            <p type="main">
              <s>I have omitted all those things which I have not myself seen, or have </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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