— ' -i) 



/Demolrs ot tbe /IDuseum of Comparative Zoology 



AT HARVARD COLLEGE. 

 Vol. XXV. No. 3. 



SOME NEW AMERICAN FOSSIL 



CRINOIDS. 



BY 



FRANK SPRINGER. 



WITH SIX PLATES. 



CAMBRIDGE, U. S. A.: 



IPrtnte5 for tbe nDuseum. 



July, 1911. 



