An illustrated monthly, published by the 

 National Geographic Society. All editorial 

 communications should be addressed to the 

 Editor of the National Geographic Magazine. 

 Business communications should be addressed to 

 the National Geographic Society. 



25 CENTS A NUMBER; $2.50 A YEAR 



Editor: GILBERT H. GROSVENOR 



GENERAL A. W. GREELY 



Chief Signal Officer, U. S. Army 



Associate Editors 



ALEXANDER GRAHAM BELL 



Washington, D. C. 



W J McGEE 



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 



O. H. TITTMANN 



Superintendent of the U. S. Coast 

 and Geodetic Survey 



O. P. AUSTIN 



Chief of the Bureau of Statistics, 

 Department of Commerce and 

 Labor 



DAVID G. PAIRCHILD 



Agricultural Explorer of the Depart* 

 ment of Agriculture 



DAVID T. DAY 



Chief of the DivisionTof Mineral 

 Resources, U. S. Geological Survey 



ALFRED H. BROOKS 



U. S. Geological* Survey 



ANGELO HEILPRIN 



Academy of Natural Sciences, Phila- 

 delphia 



R. D. SALISBURY 



University of Chicago 



G. K GILBERT 



U. S. Geological Survey 



ALEXANDER McADIE 



Professor of Meteorology, U. S. 

 Weather Bureau, San Francisco 



ALMON GUNNISON 



President St. Lawrence University 



Hubbard Memorial Hall, Washington, D. C. 



