/vi-ti THE 



NATIONAL GEOGRAPHIC 

 MAGAZINE 



AN ILLUSTRATED MONTHLY 



Editor 



GILBERT H. GROSVENOR 



Associate Editor 



JOHN OLIVER LA GORCE 



Assistant Editor 



WILLIAM JOSEPH SHOW ALTER 



Contributing Editors 



A. W. GREELY ALEXANDER GRAHAM BELL 



Arctic Explorer, Major Gen'l U. S. Army 



C. HART MERRIAM 



DAVID FAIRCHILD 



Member.N.tion.1 Academy of Science. **££% A^SSS™ 1 t^™*™' 



O. H. TITTMANN 



Former Superintendent of U. S. Coast HUGH M. SMITH 

 and Geodetic Survey Commissioner, U. S. Bureau of Fisheries 



ROBERT HOLUSTER CHAPMAN ., _, ~ .„,-«., 



„./.,... N. H. DARTON 

 U. b. Geological Ourvey 



WALTER T. SWINGLE FRANK M. CHAPMAN 



Vol. XXIX— January -June, 1916 



COPYRIGHT 1916 BY 

 THE NATIONAL GEOGRAPHIC SOCIE 

 HUBBARD MEMORIAL HALL 

 WASHINGTON. D. C. 



