GEOLOGICAL SURVEY OF WISCONSIN; 



DESCRIPTIONS OF 



NEW SPECIES OF FOSSILS; 



FROM 



THE INVESTIGATIONS OF THE SURVEY; 



To accompany the Report of Progress made to His Excellen- 

 cy, Alexander W. Randall, on the 24th 

 day of December, 1860. 



BY JAMES HALL, 



STATE GEOLOGIST AND PALAEONTOLOGIST. 



