1 . 4 li^ 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOLUME 93. NUMBER 5 



NOMENCLATURE OF SOME CAMBRIAN 

 TRILQBITES 



BY 

 CHARLES ELMER RESSER 



Curator, Division of Invertebrate Paleontology, 

 U. S. National Museum 



(PuBLICATIO^f 3295) 



CITY OF WASHINGTON 



PUBLISHED BY THE SMITHSONIAN INSTITUTION 



FEBRUARY 14, 1935 



