. Bulletin. Plant diseases -- United States. Bull. No. ?i, Div. Veg. Phy». »nd Patr. U S. Dept. Agr Plate III. Cross section of a red cedar trunk showing holes caused by polyporus 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. Division of Vegetable Physiology and Pathology. Washington : G. P. O.

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Keywords: ., book, bookcentury1800, bookdecade1890, bookpublisherwashingtongpo