. Defects in timber caused by insects. Wood; Forest insects. 30 BULLETIN 1490, U. S. DEPARTMENT OE AGRICULTURE generations over a period of 20 years or more. In certain cases powder-post injury may be a menace to human life, as in the weakened woodwork of buildings, vehicle stock, or ladders. Losses due to Lyctus beetles can be prevented by proper methods of classification and piling of stock by kinds; by keeping heartwood. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustration
. Defects in timber caused by insects. Wood; Forest insects. 30 BULLETIN 1490, U. S. DEPARTMENT OE AGRICULTURE generations over a period of 20 years or more. In certain cases powder-post injury may be a menace to human life, as in the weakened woodwork of buildings, vehicle stock, or ladders. Losses due to Lyctus beetles can be prevented by proper methods of classification and piling of stock by kinds; by keeping heartwood. 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 Snyder, Thomas Elliott, b. 1885. Washington, D. C. : U. S. Dept. of Agriculture
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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherwa, booksubjectwood
