Six Years of Exploration in Colombia, Venezuela, British Guiana, Peru, Bolivia, Argentina, Paraguay, and Brazil. By LEO E. MILLER, of the American Museum of Natural History. First Lieutenant in the United States Aviation Corps. With 48 Full-page Illustrations and with maps. Demy 8vo, cloth. This volume represents a series of almost continuous explorations hardly ever paralleled in the huge areas traversed. The author is a distinguished field naturalist--one of those who accompanied Colonel Roosevelt on his famous South American expedition--and his first object in his wanderings over 150,000 miles of territory was the observation of wild life; but hardly second was that of explorat…
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