THE 



Nationac 



GEOGRAPHIC 



Magazine 



Vol XII 



APRIL, igoi 



CONTENTS 



No. 4 



THE OLD YUMA TRAIL. BY W J McGEE, VICE-PRESIDENT page 

 NATIONAL GEOGRAPHIC SOCIETY. ILLUSTRATED . . 129 



«r 

 ADVANCES IN GEOGRAPHIC KNOWLEDGE DURING THE 

 NINETEENTH CENTURY. BY GEN. A, W. GREELY, U. S. 

 ARMY. ILLUSTRATED . . . . . . . . .143 



ir 

 MEXICO OF TODAY. BY SENOR DR. DON JUAN N. NAVARRO, 



' MEXICAN CONSUL-GENERAL IN NEW YORK CITY . . 152 



•r ■ ■ 

 GEOGRAPHIC NOTES ........... 158 



GEOGRAPHIC LITERATURE . . . . , . . .165 



w 

 PROCEEDINGS OF THE NATIONAL GEOGRAPHIC SOCIETY" . . 166 



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