BULLETIN NO. 1 



^kA^ 



ILLI NOIS 



State Museum of Natural History, 



SPRINGFIELD, ILLINOIS 



ARTICLE I. 

 Descriptions of fifty-four new species of crinoids from the lower 

 carboniferous limestones and coal measures of illinois and 

 IOWA. By a. H. Worthen. 



ARTICLE 11. 

 Addenda. Corrections and proposed new names for species pre- 

 viously described in the geological survey of ILLINOIS, UNDER 

 names that were preoccupied ; and DESCRIPTIONS OF TWO NEW 

 SPECIES OF FOSSIL SHELLS FROM THE COAL MEASURES OF ILLINOIS 

 AND KANSAS. By A. H. WoRTHEN. 



ARTICLE III. 



Descriptions of two new species of crinoids from the Chester 

 limestone and coal measures of illinois. 



By Charles Wachsmuth. 



FEBIJ-TJuSlE/Y, 18S2. 



PRINTED FOR THE MUSEUM. 



SPRINGFIELD, ILL.: 

 H. w. eokkeb's publishing house. 



1882. 



