. Bulletin of the Department of Agriculture. Agriculture; Agriculture -- United States. 24 BtJLLETTlSr 510, V. S. DEPARTMENT OP FiQ. 23.—Foundations which have failed through decay, permitting the piles to topple over. This would have been prevented by the use of a good preservative. Certain general considerations, however, apply to practically all cases. The method of using special narrow cross sticks is probably in greatest use, and this offers certain advantages when the sticks are handled in a sanitary manner. In the first place, the strips are kept in an air - dry condi
. Bulletin of the Department of Agriculture. Agriculture; Agriculture -- United States. 24 BtJLLETTlSr 510, V. S. DEPARTMENT OP FiQ. 23.—Foundations which have failed through decay, permitting the piles to topple over. This would have been prevented by the use of a good preservative. Certain general considerations, however, apply to practically all cases. The method of using special narrow cross sticks is probably in greatest use, and this offers certain advantages when the sticks are handled in a sanitary manner. In the first place, the strips are kept in an air - dry condition, which offers consid- erable advantage over green material; in the second place, the strips, being nar- row, do not offer a bearing surface more than 1 to 4 inches wide. A dis- tinct advantage would also accrue with the use of sticks cut from highly durable material; for instance, resinous heart pine or resistant hardwoods, such as white oak and healt red gum. The second gen- eral method of pil- ing lumber consists in using the nar- rower widths of the lumber itself for crossing strips (fig. 26). The wider boards ordinarily offer too much of a bearing surface for good air circulation. At one of the Arkan- sas mills visited it was customary in the earlier days to use the regular run of lumber up to 12 inches wide as crossers, but this practice was discontinued on account of the serious loss from decay. The manager of the mill informed the writer that considerable rot would occur in 8 to 12 inch stock. 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. , Govt. Print. Off.
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