. Bulletin of the Department of Agriculture. Agriculture; Agriculture. SILVER FOX FARMING. 13 digging out, the fence is either extended into the ground (fig. 17) or turned abruptly inward at the surface (fig. 18) to form a mat 3 feet wide, the inner edge of which is pinned firmly to the ground and usually covered with earth or stone. A fence extended into the ground must reach a depth of 4 or 5 feet if the soil is soft, and be turned inward a foot at the bottom. If there is a subsoil of clay or hardpan, the fence need not enter it more than 6 inches. Instead of netting, the under- ground
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. SILVER FOX FARMING. 13 digging out, the fence is either extended into the ground (fig. 17) or turned abruptly inward at the surface (fig. 18) to form a mat 3 feet wide, the inner edge of which is pinned firmly to the ground and usually covered with earth or stone. A fence extended into the ground must reach a depth of 4 or 5 feet if the soil is soft, and be turned inward a foot at the bottom. If there is a subsoil of clay or hardpan, the fence need not enter it more than 6 inches. Instead of netting, the under- ground part of a fence may be made of 2-inch creosoted planks. As foxes climb wire fences readily an inward over- hang about 18 inches wide should b e placed at the top to prevent escape (figs. 15-20). When a fox has scrambled up to an overhang, its only means of descending is by Fig. 9.—Double-walled den; exterior broken to show inner den (see figs. 7 and Sometimes valuable animals have been seriously injured in this way. To "prevent accidents of this kind an intermediate overhang is sometimes constructed 5 feet from the ground, as shown in figure 16, or a smooth zone of boards or sheet iron is inserted in the upper half of the fence, as shown in figure 20. The yards for sequestering males are usually adjacent to the main yards, with which they arc, connected by a chute having a sliding door dig. 21), though sometimes they arc separated from the family. 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 United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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