FIRST, SECOND, AND THIRD AMUAL REPORTS 



UNITED STATES GEOLOGICAL SURVEY 



OF THE TEREITOKIES 



THE YEARS 1867, 1868, AND 1869, 



UNDER THE 



DEPARTMENT OF THE INTERIOR. 



O O A *^ 



WASHINGTOK: 



GOYEENMENT PRINTING OFFICE. 

 1873. 



