/Demofrs of tbc /IDuseum of Comparative ZoSloflg 



AT HARVARD COLLEGE. 

 Vol. XXV. No. 3. 



SOME NEW AMERICAN FOSSIL 



CRINOIDS. 



BY 



FRANK SPRINGER. 



WITH SIX PLATES. 



CAIVIBRIDGE, U. S. A.: 



pr(nte& for tbe /Duseum. 



July, 1911. 



