. The American beaver and his works [microform]. Beavers; Castors. u 8G THE AMERICAN' BEAVEB. site solidity to resist the effocts botli of pressure and of saturation. Small sticks and brush are used, in the first instance, with mud, earth, and stones for down weight. Consequently these dams are extremely rude at their commencement, and they do not attain tlieir remarkably artistic appearance until after they iiave been raised to a considerable height, and have been maintained, by a system of annual repairs, for a number of years. The open stick-work dams are the most interesting as well as the
. The American beaver and his works [microform]. Beavers; Castors. u 8G THE AMERICAN' BEAVEB. site solidity to resist the effocts botli of pressure and of saturation. Small sticks and brush are used, in the first instance, with mud, earth, and stones for down weight. Consequently these dams are extremely rude at their commencement, and they do not attain tlieir remarkably artistic appearance until after they iiave been raised to a considerable height, and have been maintained, by a system of annual repairs, for a number of years. The open stick-work dams are the most interesting as well as the most common, and they will be first presented. This dam, which is represented in the engraving (Plate VI.), and which is marked No. 8 upon the map, is the most remarkable of all the structures of this de- scription of which I have gained a knowledge. 1 have seen others that were longer, and still others that were higher for short distances, but none that united, to the same extent, the two features of great length and continuous elevation, or that contained so large an amount of solid material. It is two hundred and sixty feet and ten inches in length, measured with a tape line along the crest of the dam, and six feet and two inches in vertical height at the centre of the great curve, with a slope, at the latter point, on the lower side or face of the dam, of thirteen feet in length. The site was well selected for a structure of this mngnitude. Lake Diamond is situated about half a mile to the eastward, in the midst of high hills, and maintains its level about fifteen feet higher than the level of the pond formed by the dam. Its outlet forms a small brook a few feet over and a few inches deep, and is the commencement of the \. 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 Morgan, Lewis H. (Lewis Henry), 1
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Keywords: ., bookcentury1800, bookdecade1860, booksubjectbeavers, bookyear1868
