. De re metallica. Metallurgy; Mineral industries. 138 BOOK V. waxed margin through the first semi-circular line, and reaching to the second, there proceed straight lines converging toward the centre of the hemicycle ; these mark the middles of intervening spaces lying between other straight lines which extend to the fourth semi-circular hne. But all lines whatsoever, from the waxed margin up to the fourth line, whether they go beyond it or not, correspond with the graduated lines which mark the minor spaces of a rod. Those which go beyond the fourth line correspond with the hues marking. A—Wa
. De re metallica. Metallurgy; Mineral industries. 138 BOOK V. waxed margin through the first semi-circular line, and reaching to the second, there proceed straight lines converging toward the centre of the hemicycle ; these mark the middles of intervening spaces lying between other straight lines which extend to the fourth semi-circular hne. But all lines whatsoever, from the waxed margin up to the fourth line, whether they go beyond it or not, correspond with the graduated lines which mark the minor spaces of a rod. Those which go beyond the fourth line correspond with the hues marking. A—Waxed semicircle of the hemicycle. B—Semicircular lines. C— LINES. D—Line measuring the half. E—Line measuring the whole. F^ 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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