Agricola, Georgius, De re metallica, 1912/1950

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb pagenum="222"/>
              can assay the ore at a very small expense, and smelt it only at a great
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              expense. </s>
              <s>Both processes, however, are carried out in the same way, for just
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              as we assay ore in a little furnace, so do we smelt it in the large furnace. </s>
              <s>Also
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              in both cases charcoal and not wood is burned. </s>
              <s>Moreover, in the crucible
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              when metals are tested, be they gold, silver, copper, or lead, they are mixed in
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              precisely the same way as they are mixed in the blast furnace when they
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              are smelted. </s>
              <s>Further, those who assay ores with fire, either pour out the
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              metal in a liquid state, or, when it has cooled, break the crucible and clean </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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