Author: Baker, F.C., 1922.:
Title: The molluscan fauna of the Big Vermillion River, Illinois. With special reference to its modifications as the result of pollution by sewage and manufacturing wastes. [Illinois Biol. Mon., 7(2).]
Description: Urbana, Ill. Large 8vo. Pp. 127, 45 photos (partly of habitats) on 15 plates, refs. Orig. printed wrappers.

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