. A biological investigation of the Athabaska-Mackenzie region. Zoology. North American Fauna No. 27 U. S. Dept Agr. Biological Survey. Plate Fig. 1.—Grand Rapid, Athabaska River, Showing Island and Left or Main 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 Preble, Edward Alexander, 1871-1957. Washington, Govt. print. off.

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Keywords: ., bookcentury1900, bookdecade1900, bookpublishe, booksubjectzoology