An illustrated monthly, published by the National Geographic Society, at Washing- ton, D. C. All editorial communications should be addressed to the Editor of the National Geographic Magazine, Hubbard Memorial Hall, Washington, D. C. Business communications should be addressed to the National Geographic Society, Hubbard Memorial Hall, Washington, D. C. 25 CENTS A NUMBER ; $2.50 A YEAR Editor: GILBERT H. GROSVENOR Associate Editors GENERAL A. W. GREELY Chief Signal Officer, U. S. Army W J McGBE Chief, Department of Anthropology and Ethnology, Louisiana Pur- chase Exposition C. HART MERRIAM Chief of the Biological Survey, U. S, Department of Agriculture WILLIS L. MOORE Chief of the Weather Bureau, U. S. Department of Agriculture DAVID G. PAIRCHILD Agricultural Explorer of the Depart- ment of Agriculture. O. H. TITTMANN Superintendent of the U. S. Coast and Geodetic Survey O. E. AUSTIN Chief of the Bureau of Statistics, Department of Commerce and Labor DAVID T. DAY Chief of the Division of Mineral Resources, U.S. Geological Survey IDA M. TARBELL Author of Life of Napoleon," "Life of Lincoln," etc. CARL LOUISE GARRISON Principal of Morgan School, Washington, D. C. WASHINGTON, D. C