Agricola, Georgius, De re metallica, 1912/1950
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              <s>A—WIDE
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              vena profunda.
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              </s>
              <s> B—NARROW
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              vena profunda.
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              </s>
            </p>
            <p type="main">
              <s>
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              Venae dilatatae,
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              in truth, differ also in thickness, for some are one fathom
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              thick, others two, or even more; some are a cubit thick, some a foot, some
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              only half a foot; and all these are usually called thick veins. </s>
              <s>Some on the
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              other hand, are but a palm thick, some three digits, some two, some one;
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              these are called thin veins.</s>
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