iv THE NATIONAL GEOGRAPHIC MAGAZINE 



Pagf 

 Smaller Mammals of North America. By Edward W. Nelson, Chief, U. S. Biological 



Survey 371* 



Symbol of Service to Mankind, The: The Greatest Humanitarian Movement of Modern 

 Times Originated in a Practical Attempt to Meet a Practical Need with a Practical 



Remedy. By Stockton Axson, National Secretary, American Red Cross 375 



Tales of the British Air Service. By Major William A. Bishop', V. C, D. S. O., M. C. 27 



Unique Republic, Where Smuggling Is An Industry, A. By Herbert Corey 279 



Valley of Ten Thousand Smokes, The: An Account of the Discovery and Exploration 

 of the Most Wonderful Volcanic Region in the World. By Robert F. Griggs, 

 Director of the National Geographic Society Katmai Expeditions of 1915, 1916, 

 and 1917 115 



Voyaging on the Volga Amid War and Revolution: War-time Sketches on Russia's 



Great Waterway. By William T. Ellis 245 



What Is It To Be An American? By Franklin K. Lane, Secretary of the Interior.. 348 



MAPS ISSUED BY THE NATIONAL GEOGRAPHIC SOCIETY WHICH ARE PROVING 

 INVALUABLE TO ITS MEMBERS IN FOLLOWING WORLD EVENTS 



MAP OF THE WESTERN THEATRE OF WAR, showing practically every place mentioned in dis- 

 patches from the front — a map on which the progress of our armies may easily be traced. Size, 27X31J4 

 inches. Price, papei, 75 cents each (including index); linen, $1.50 each (including index). Index alone. 25 

 cents. Postpaid in United States. Ivoreign postage, 25 cents extra. 



MAP OF EUROPE and adjoining portions of Asia and Africa. In seven colors. Size, 28 x 32 inches. 

 Price, paper, 25 cents; linen, 75 cents. Postpaid in United States. 



MAP OF CENTRAL AMERICA, WEST INDIES, AND PANAMA CANAL. In seven colors. Shows 

 steamship routes with distances ind ; ~ated. Also relief elevation sketch of the Panama Canal. Size, i6l4 x 23 

 inches. Price, heavy art paper ediMf n, 50 cents. Postpaid in United States. 



MAP OF CHINA and adjacent territories, including Mongolia, Manchuria, Chosen (Korea), East Turkes- 

 tan, Tibet, and northern India. Size, 17 x 23 inches. Price, paper only, 50 cents. Postpaid in United States. 



MAP OF MEXICO, together with an enlarged inset map of the central portion of Mexico (1916 edition). 

 Size, 22x30 inches. Price, paper, 25 cents; linen,. 75 cents; on rollers, $1.50. Postpaid in United States. 



MAP OF ALASKA, showing the railroads, finished and proposed, telegraph and cable lines, overland 

 postal routes, and glaciers. Size, 16^2 X2ij4 inches. Price, paper only, 50 cents. Postpaid in United States. 



The Society has also published, as supplements to the National Geographic Magazine, the following 

 maps in color: Balkan States, 1914 (i8'4 x 22^4 inches, paper, 25 cents; linen, 50 cents). South America, 1906 

 (io^4 x 14 inches, paper, 25 cents). World, showing principal trade routes, 1912 (5^ x Zy 2 inches, paper, 25 

 cents). Africa, 1909 (16^2 x 21 inches, paper, 25 cents; linen, 50 cents). North Polar Regions, 1907 (19X 19 

 inches, paper, 25 cents; linen, 50 cents). A few copies of each of these are still available, but the editions 

 are limited. If the supply is exhausted before your order is received, your remittance will be returned, as no 

 additional copies can be printed. 



These maps are obtainable only at the Society's Washington headquarters, 16th and M 

 Streets. 



■HPBODUCED BY 

 THB COLUMBIA PLANOCKAPH CO. 

 WASHINGTON. D. C. 



