THE 



GEOLOGICAL 



NATURAL HISTORY SURVEY 



OP 



:M:i:N"isrESOT^. 



THE TWELFTH ANNUALIREPORT, 



FOR THE YEAR 1883- 



N. H. WINCHELL State Geologist. 



MINNEAPOLIS : 



JOHNSON, SMITH & HABKISON, 



STATE PRINTERS. 



1884. 



