.■^^>^' 



ENGINEER DEPARTMENT, U. S. ARMY. 



EXPLORATIONS ACROSS THE GREAT BASIN OF UTAH IN 1859. 



In charge of CAPT. J. H. SIMPSON, Topographical Engineeks. 



REPORT 





m 



ICHTHYOLOGl 



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PROF. THEO. GILL 





WASHINGTON: 



GOVERNMENT PRINTING OFFICE 



1876. 



