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TO ILLUSTRATE GEOGRAPHICAL EXPLORATIONS AND SURVEYS 
PROSECUTED IN ACCORDANCE WITH ACTS OF CONGRESS 
AND THE DIRECTION OF 
BRIG. GEN" A. A. HUMPHREYS, CHIEF OF ENGINEERS, U.S.ARMY. 
embracing 
EHSCLTS 
OF Tin: DIFFERENT EXPEDITIONS UNDER THE COMMAND OF 
n T lieut. GEO. M. WHEELER, corps of engineers . 
.lull us Bleu. Lilli 
