. A biological investigation of the Athabaska-Mackenzie region. Zoology. North American Fauna No. 27, U S Dept Agr. Biological Survey. Plate Fig. 1.—Summit of Mount Tha-on'-tha, Showing Stunted Vegetation and Coral- bearing Rocks. 11 iiiilmiiiiiiiii. 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