. Bulletin of the Department of Agriculture. Agriculture; Agriculture. ::s Bl i i ... hi r\i:l Mi LOTH n,i rm. The of trees thai have been infested \>\ larvae <»f the moth is invariably bo permeated with pitch that tin- lumber cut from such logs ie either materially reduced in value 11lt 11 lumber sheds and similar structures where shrinkage can be discounted Sr nut more than 10 per cent, Dendroctotius pseudotsugae Hopkins for not less than 70 per cent, and all other causes for about 20 per cent of the Fig. 41.—Black check in western hemlock, radial section. (6'
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. ::s Bl i i ... hi r\i:l Mi LOTH n,i rm. The of trees thai have been infested \>\ larvae <»f the moth is invariably bo permeated with pitch that tin- lumber cut from such logs ie either materially reduced in value 11lt 11 lumber sheds and similar structures where shrinkage can be discounted Sr nut more than 10 per cent, Dendroctotius pseudotsugae Hopkins for not less than 70 per cent, and all other causes for about 20 per cent of the Fig. 41.—Black check in western hemlock, radial section. (6'). 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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Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
