Agricola, Georgius, De re metallica, 1912/1950

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      <text>
        <body>
          <chap>
            <p type="caption">
              <s>
                <pb pagenum="302"/>
              place, he removes with a shovel the mud and sand which are mixed with
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              minute particles of metal, and washes them on a canvas strake. </s>
              <s>Sometimes
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              before the buddles have been filled full, the boys throw the material into a
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              bowl and carry it to the strakes and wash it.</s>
            </p>
            <p type="main">
              <s>Pulverized ore is washed in the head of this kind of a buddle; but usually
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              when tin-stone is washed in it, interlacing fir boughs are put into the buddle, in
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              the same manner as in the sluice when wet ore is crushed with stamps. </s>
              <s>The
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              larger tin-stone particles, which sink in the upper part of the buddle,
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              are washed separately in a strake; those particles which are of medium
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              size, and settle in the middle part, are washed separately in the same way;
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              and the mud mixed with minute particles of tin-stone, which has settled in
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              the lowest part of the buddle below the fir boughs, is washed separately on
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              the canvas strakes.</s>
            </p>
            <p type="main">
              <s>The divided buddle differs from the last one by having several cross­
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              boards, which, being placed inside it, divide it off like steps; if the buddle
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              is twelve feet long, four of them are placed within; if nine feet long, three.
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              </s>
              <s>The nearer each one is to the head, the greater is its height; the further from
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              the head, the lower it is; and so when the highest is a foot and a palm high, </s>
            </p>
            <figure number="165"/>
            <p type="caption">
              <s>A—PIPE. B—CROSS LAUNDER. C—SMALL TROUGHS. D—HEAD OF THE BUDDLE.
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              E—WOODEN SCRUBBER. F—DIVIDING BOARDS. G—SHORT STRAKE.</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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