. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 26 BULLETIN 1151, U. S. DEPARTMENT OF AGRICULTURE. The outside base measurements are 3 feet 6 inches long by 2 feet 10 inches wide, the front side 2 feet 7 inches high and the rear 2 feet 1 inch. UNDERGROUND DENS. The underground den is a recent t}^pe. Advantages claimed for it are that it deadens sound and preserves an even temperature all the year round, thus protecting the foxes from extremes of heat or cold; it is an excep- tionally cool place on hot days in summer. This den will prove satisfactory only jn. i Wh*~~
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 26 BULLETIN 1151, U. S. DEPARTMENT OF AGRICULTURE. The outside base measurements are 3 feet 6 inches long by 2 feet 10 inches wide, the front side 2 feet 7 inches high and the rear 2 feet 1 inch. UNDERGROUND DENS. The underground den is a recent t}^pe. Advantages claimed for it are that it deadens sound and preserves an even temperature all the year round, thus protecting the foxes from extremes of heat or cold; it is an excep- tionally cool place on hot days in summer. This den will prove satisfactory only jn. i Wh*~~*~*4 Fig. 26.—Vertical cross sec- tion of barrel den. Fig. -Horizontal longitudinal section of barrel den. light, well drained, chiefly sandy, soils; it is not practicable in heavy soils or in those containing outcroppings of rock which make exca- vation very difficult. Figure 31 gives plan of construction. Underground dens are made chiefly of wood, but a few ranchers have used hollow building blocks and cement. It has yet to be determined whether the last-mentioned materials make the foxes. 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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