. De re metallica. Metallurgy; Mineral industries. BOOK VIII. 289 nately backward and forward. By this movement the small particles fall through the bottom of the sieve. In order that the end of the pole- may be easily placed in the rope, a stick, two palms long, holds open the lower part of the rope as it hangs double, each end of the rope being tied to the beam ; part of the rope, however, hangs beyond the stick to a length of half a foot. A large box is also used for this purpose, of which the bottom is either made of a plank full of holes or of iron netting, as are the other boxes. An iron
. De re metallica. Metallurgy; Mineral industries. BOOK VIII. 289 nately backward and forward. By this movement the small particles fall through the bottom of the sieve. In order that the end of the pole- may be easily placed in the rope, a stick, two palms long, holds open the lower part of the rope as it hangs double, each end of the rope being tied to the beam ; part of the rope, however, hangs beyond the stick to a length of half a foot. A large box is also used for this purpose, of which the bottom is either made of a plank full of holes or of iron netting, as are the other boxes. An iron bale is fastened from the middle of the planks which form its sides ; to this bale is fastened a rope which is suspended from a wooden beam, in order that the box may be moved or tilted in any -Box. B—Bale. G—Sieve. C—Rope. D—Beam. E—Handles. F—Five-toothed rake. H—Its handles. I—Pole. K^Rope. L—Timber. There are two handles on each end, not unlike the handles of a wheel- barrow ; these are held by two workmen, who shake the box to and fro. This box is the one principally used by the Germans who dwell in the Carpathian mountains. The smaller particles are separated from the larger ones by means of three boxes and two sieves, in order that those which pass through each, bemg of equal size, may be washed together; for the bottoms of both the boxes and sieves have openings which do not let through broken rock of the size of a hazel nut. As for the dry remnants. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Agricola, Georg, 1494-1555; Hoover, Herbert, 1874-1964. New York, Dover Publications
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