. Bulletin of the Department of Agriculture. Agriculture. Fig. 5.— Macrosiphum pisi- I'upaof viviparous generation. Much enlarged. (Origmal.). 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, D. C. ?] : The Department : Supt. of Docs. , Govt. Print. Off.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectagriculture, bookyear