. [Collected reprints, 1912-1919. Mammals; Mammals; Birds. i66 Field Museum or Natural History — ZoOlogy, Vol. Hole in the ice cut and kept open by Beavers near Champion, Michigan. (From photograph by W. H. Osgood.). 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 Cory, Charles B. (Charles Barney), 1857-1921. s. l. , s. n.

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Keywords: ., bookcentury1900, bookpublisherslsn, booksubject, booksubjectbirds