. The cankerworms. Canker-worms; Fruit. Bui. 1238, U. S. Dept. of Agriculture Plate 111. 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 Porter, B. A. (Bennet Allen), 1892-; Alden, Charles H. (Charles Harold), 1894-. Washington, D. C. : U. S. Dept. of Agriculture

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Keywords: ., bookcentury1900, bookdecade1920, bookpublisherwashingtondcusdept