. De re metallica. Metallurgy; Mineral industries. BOOK VIII. 303 the second is usually a foot and three digits high, the third a foot and two digits, and the lowest a foot and one digit. In this huddle is generally washed that metalliferous material which has been sifted through the large sieve into the tub containing water. This material is continuously thrown with an iron shovel into the head of the buddle, and the water which has been let in is stirred up by a wooden scrubber, until the buddle is full, then the cross-boards arc taken out by the washer, and the water is drained off ; next t
. De re metallica. Metallurgy; Mineral industries. BOOK VIII. 303 the second is usually a foot and three digits high, the third a foot and two digits, and the lowest a foot and one digit. In this huddle is generally washed that metalliferous material which has been sifted through the large sieve into the tub containing water. This material is continuously thrown with an iron shovel into the head of the buddle, and the water which has been let in is stirred up by a wooden scrubber, until the buddle is full, then the cross-boards arc taken out by the washer, and the water is drained off ; next the metalliferous material which has settled in the compartments is again washed, either on a short strake or on the canvas strakes or in the jigging sieves. Since a short strake is often united with the upper part of this buddle, a pipe in the first place carries the water into a cross launder, from which it flows down through one little launder into the buddle, and through another into the short strake. An ordinary strake, so far as the planks are concerned, is not unlike the last two. The head of this, as of the others, is first made of earth stamped down, then covered with planks; and where it is necessary, earth is thrown in and beaten down a second time, so that no crevice may remain through which water carrying the particles of metal can escape. The water ought to fall straight down into the strake, which has a length of eight feet. A—Head B—Strake. C—Trowel. D—Scrubber. E—Canvas F—Rod by WHICH THE CANVAS IS MADE 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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