|igp 
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P 508.7913 
P 884 
REPORT 
OF 
EXPLORATIONS IN 1873 
OF 
THE COLORADO OF THE WEST 
AND 
ITS TRIBUTARIES, 
BY 
Professor J. W. P O W ELL, 
UNDER THE 
DIRECTION OF THE SMITHSONIAN INSTITUTION. 
WASHINGTON: 
GOVE E NIENT PRINTING O F FI OE 
18 7 4 . 
