SMITHSONIAN INSTITUTION 



THE 

 CRINOIDEA FLEXIBILIA 



(With an Atlas of A. B. C. and 76 Plates) 



BY 



FRANK SPRINGER 



LAS VEGAS, NEW MEXtCO 

 ASSOCIATE IN PALEONTOLOGY, U. S. NATIONAL MUSEUM 



PLATES 



perV ^~4-?<s? 





(Publication 2501) 



CITY OF WASHINGTON 

 PUBLISHED BY THE SMITHSONIAN INSTITUTION 



1920 



