DEC 5 1930 



3 4, or? 



Paleontological Bulletin, No. 34. 



CONTRIBUTIONS 



TO THE 



HISTORY OP THE YERTEBRATA 



OF THE 



LOWER EOCENE OF WYOMING AND NEW MEXICO, 



MADE DURING 1881. 



B37" E. ID. COPE. 



(JSxtr. Am. Phil Soc.) 



(Read before the Amer. Philosophical Society, Dec. 16, 1881.) 



FOR SALE BY A. E. FOOTE, 



1223 BELMONT AVENUE, 



PHUj^DELPHIii.. 



