r-y^ 





InvtP 



QE 



179 



.W47 



1861 



REPORT 





OV THE 



giW'" 



SIM' EH 1NTENDKNT 



OF TI1K 



GEOLOGICAL SURVEY 



KXH'IWTINU THE IMIOOMSS OF THE WORK. 



J A N U A II Y 1. 1 Sfll 



MADISON : 



E. A. CALKINS & CO., STATE PRINTERS. 



188L 



