. A manual of zoology. Zoology. Fig. Fig. Fig. 482.—Phylloxera vastatrix (from Ludwig-Leunis). i, winged generation; 2, grape root, with nodules (a) caused by ; 3, wingless root-generation. Fig. 483.—Phthirms inguinalis, crab louse (after Leuckart).. 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 Hertwig, Richard, 1850-1937; Kingsley, J. S. (John Sterling), 1854-1929, ed. and tr. New York, H. Holt

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectzoology, bookyear1912