^» 



ENGINEER DEPARTMENT, U. S. ARMY. 



EXPLORATIONS ACROSS THE GREAT iJASIN OF UTAH IN 1S59. 



In ciiahgk ok cAPT. J. II. SIMPSON, Toi-aGiivniiCAL Enginkkhs. 



REPORT 



ON 



ICHTHYOLOGY. 



FROF. THEO. OILL 





WASHINGTON: 



G O V K K N 51 E N T P K I N T I N G OFFICE 



1876. 



