Agricola, Georgius, De re metallica, 1912/1950

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    <archimedes>
      <text>
        <body>
          <chap>
            <p type="caption">
              <s>
                <pb pagenum="303"/>
              the second is usually a foot and three digits high, the third a foot and two
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              digits, and the lowest a foot and one digit. </s>
              <s>In this buddle is generally washed
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              that metalliferous material which has been sifted through the large sieve
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              into the tub containing water. </s>
              <s>This material is continuously thrown with
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              an iron shovel into the head of the buddle, and the water which has been
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              let in is stirred up by a wooden scrubber, until the buddle is full, then the
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              cross-boards are taken out by the washer, and the water is drained off; next
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              the metalliferous material which has settled in the compartments is again
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              washed, either on a short strake or on the canvas strakes or in the jigging
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              sieves. </s>
              <s>Since a short strake is often united with the upper part of this buddle,
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              a pipe in the first place carries the water into a cross launder, from which it
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              flows down through one little launder into the buddle, and through another
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              into the short strake.</s>
            </p>
            <p type="main">
              <s>An ordinary strake, so far as the planks are concerned, is not unlike the
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              last two. </s>
              <s>The head of this, as of the others, is first made of earth stamped
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              down, then covered with planks; and where it is necessary, earth is
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              thrown in and beaten down a second time, so that no crevice may remain
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              through which water carrying the particles of metal can escape. </s>
              <s>The water
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              ought to fall straight down into the strake, which has a length of eight feet </s>
            </p>
            <figure number="166"/>
            <p type="caption">
              <s>A—HEAD B—STRAKE. C—TROWEL. D—SCRUBBER. E—CANVAS F—ROD BY
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              WHICH THE CANVAS IS MADE SMOOTH.</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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