. Circular. Agriculture; Agriculture -- United States. N 4) IRRIGA ROTATI ED. 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, D. C. : U. S. Dept. of Agriculture, Bureau of Plant Industry

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Keywords: ., bookcentury1900, bookdecade1900, booksubj, booksubjectagriculture