. Defects in timber caused by insects. Wood; Forest insects. 20 damage by timber worms, as will also coating or spraying with preservatives. Repellent, poisonous, or stickly chemical sprays, to prevent attack by ambrosia beetles on more valuable species and products, can be used where the bark is on the logs and the wood will not be dis- colored (12). The preservative coating known as hardened gloss oil has the advantage of preventing checking. Green lumber should be kiln-dried (49) ; or, where this is not practicable, piled on stickers (7), to insure rapid air seasoning. Air m% 1M â J's/W. mm
. Defects in timber caused by insects. Wood; Forest insects. 20 damage by timber worms, as will also coating or spraying with preservatives. Repellent, poisonous, or stickly chemical sprays, to prevent attack by ambrosia beetles on more valuable species and products, can be used where the bark is on the logs and the wood will not be dis- colored (12). The preservative coating known as hardened gloss oil has the advantage of preventing checking. Green lumber should be kiln-dried (49) ; or, where this is not practicable, piled on stickers (7), to insure rapid air seasoning. Air m% 1M â J's/W. mm mmIII11!. 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
Size: 1485px × 1683px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublisherwa, booksubjectwood
