BULLETIN NO. 3 



OF THE 



Illinois State Museum 



OF 



NATURAL HISTORY. 



Description of Some New Species of Invertebrates 

 from the Palaeozoic Rocks of Illinois and 

 Adjacent States 



By S. A. MILLER and Wm. F. E. GURLEY. 



Springfield, Illinois, 

 December 1, 1893. 



SPRINGFIELD, ILL. 

 H. W. Rokkee. State Pbinter and Binder, 



1893. 



