THE 



Nationau 



Geographic 

 Magazine 



Vol. XII JANUARY, igoi ^ No. i 



CONTENTS 

 THE INFLUENCE OF SUBMARINE CABLES UPON MILITARY '^^tB 

 AND NAVAL SUPREMACY. BY GEORGE O. SQUIER, CAPT 

 SIGNAL CORPS, U.S.A . i 



THE INDIAN TRIBES OF SOUTHERN PATAGONIA, TIERRA 

 DEL FUEGO, AND THE ADJOINING ISLANDS. BY J. B. 

 HATCHER. ILLUSTRATED 12 



LOCATION OF THE BOUNDAIE^Y BETWEEN NICARAGUA 

 AND COSTA RICA. BY ARTHUR P. DAVIS, CHIEF HYDROG- 

 RAPHER, ISTHMIAN CANAL COMMISSION. ILLUSTRATED 23 



* 



THE NICARAGUA CANAL. ILLUSTRATED 28 



THE TSANGPO. BY JAMES MASCARENE HUBBARD ... 32 



RECENT CONTRIBUTIONS TO OUR KNOWLEDGE OF THE 

 . EARTH'S SHAPE AND SIZE, BY THE UNITED STATES 

 COAST AND GEODETIC SURVEY. BY A. C. SCHOTT. 

 ILLUSTRATED . . . . , . ... . . . 06 



EXPLORATIONS IN CENTRAL EAST AFRICA 42 



GEOGRAPHIC NOTES. ILLUSTRATED 44 



McCLURE, PHILLIPS & CO. 

 $2.50 a Year NEW YORK 25 Cents a Number 



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