. Bulletin. Agriculture. Bui. 36, Bureau of Plant Industry, U S. Dept. of Agriculture . Plate y Cross Section ofa DyingTree ofthe Bull Pine,showing Blue Color. JULIUS BlflN a. CO 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. Bureau of Plant Industry. Washington : G. P. O.

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Keywords: ., bookcentury1900, bookdecade1900, bookpubl, booksubjectagriculture