. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. 22 BULLETIN 1128, U. S. DEPARTMENT OF AGRICULTURE. somewhat uncommon in yellow birch, although the writer has found them from time to time in propeller stock of this species. Softwoods. Fig. 8.—Transverse section of a branch of river birch, showing pith-ray flecks. Natural 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 or
. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. 22 BULLETIN 1128, U. S. DEPARTMENT OF AGRICULTURE. somewhat uncommon in yellow birch, although the writer has found them from time to time in propeller stock of this species. Softwoods. Fig. 8.—Transverse section of a branch of river birch, showing pith-ray flecks. Natural 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 : U. S. Dept. of Agriculture]
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1913
