P«mDtrs of t^t Puscum uf Comijarattbe goblogu 



AT HARVARD COLLEGE. 



Vol. XXI. 



THE NORTH AMERICAN 



CRINOIDEA CAMERATA. 



By CHARLES WACHSMUTH and FEANK SPEmGER. 



IN TWO VOLUMES WITH EIGHTY-THREE PLATES. 



Vol. II. 



CAMBRIDGE, U.S.A.: 

 ^rinteb for tlje iHuseum. 



M.4Y, 1897. 



