. The Black Hills beetle : with further notes on its distribution, life history, and methods of control. Mountain pine beetle; Forest insects. D. 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 Hopkins, A. D. (Andrew Delmar), 1857-1948. Washington, D. C. : U. S. Dept. of Agriculture, Bureau of Entomology

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Keywords: ., bookauthorhopkinsadandrewdelmar, bookcentury1900, bookdecade1900