. A biological investigation of the Athabaska-Mackenzie region. Zoology. North American Fauna No. 27. U. S. Dept. Agr. Biological Survey. Plate Fig. 1.—Semibarren Summit of Loon Island, Great Slave 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