Umorrs of i\n ©itseuiu of ©ompiiratibt ioblogu 



AT HARVARD COLLEGE. 



Eighty-Three Plates to Accomi'any. 



Vols. XX. and XXI. 



THE NORTH AMERICAN 



CRINOIDEA CAMERATA. 



By CHAELES WACIISMUTH and FRANK SPRINGER. 



EIGHTY-THREE PLATES. 



CAMBRIDGE, U.S.A.: 



^rintcD for t|)c IHuSfum. 

 May, 1897. 



