. Elementary entomology. Insects. FIG. 231. Work of the round-headed apple-tree borer. (Natural size) a, puncture in which egg is laid ; b, same in section ; e, hole from which beetle has emerged ; /, same in section ; g, pupa in its cell. (After Riley) '59. 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 Sanderson, Dwight, 1878-1944; Jackson, C. F. (Cicero Floyd), b. 1882. Boston, New York [etc. ] Ginn and Company

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Keywords: ., bookpublisherbostonnewyorketcginnandcompany, booksubjectinsects