Agricola, Georgius, De re metallica, 1912/1950

Table of figures

< >
[Figure 21]
[Figure 22]
[Figure 23]
[Figure 24]
[Figure 25]
[Figure 26]
[Figure 27]
[Figure 28]
[Figure 29]
[Figure 30]
[Figure 31]
[Figure 32]
[Figure 33]
[Figure 34]
[Figure 35]
[Figure 36]
[Figure 37]
[Figure 38]
[Figure 39]
[Figure 40]
[Figure 41]
[Figure 42]
[Figure 43]
[Figure 44]
[Figure 45]
[Figure 46]
[Figure 47]
[Figure 48]
[Figure 49]
[Figure 50]
< >
page |< < of 679 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="caption">
              <s>
                <pb pagenum="147"/>
              not yet pierced between the miners who on opposite sides are digging on
                <lb/>
              the same vein, or cross-stringers, or two veins which are approaching one
                <lb/>
              another.</s>
            </p>
            <p type="main">
              <s>But I return to our mines. </s>
              <s>If the surveyor desires to fix the boundaries
                <lb/>
              of the meer within the tunnels or drifts, and mark to them with a sign cut in the
                <lb/>
              rock, in the same way that the
                <emph type="italics"/>
              Bergmeíster
                <emph.end type="italics"/>
              has marked these boundaries
                <lb/>
              above ground, he first of all ascertains, by measuring in the manner
                <lb/>
              which I have explained above, which part of the tunnel or drift lies
                <lb/>
              beneath the surface boundary mark, stretching the cords along the drifts to
                <lb/>
              a point beyond that spot in the rock where he judges the mark should be
                <lb/>
              cut. </s>
              <s>Then, after the same cords have been laid out on the surveyor's field,
                <lb/>
              he starts from that upper cord at a point which shows the boundary mark,
                <lb/>
              and stretches another cross-cord straight downward according to the sixth </s>
            </p>
            <figure number="75"/>
            <p type="caption">
              <s>A—NEEDLE OF THE INSTRUMENT. B—ITS TONGUE. C, D, E—HOLES IN THE TONGUE.</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>