^ cx 
C72r 
VP^u 
ENGINEER DEPARTMENT, U, S. ARMY. 
GEOGRAPHICAL SURVEYS WEST OF THE ONE HUNDREDTH MERIDIAN. 
1st Lieut. GEO. M. WHEELEE, Corps of Engineers, U. S. Army, in charge. 
II. 
REPORT 
UPON 
THE EXTINCT VERTEBRATA OBTAINED IN NEW MEXICO BY PARTIES OF 
THE EXPEDITION OF 1874. 
BY 
PROF. E. D. COPE. 
COMPRISING 
Chapter XL—FOSSILS OP THE MESOZOIC PERIODS AND GEOLOGY OF 
MESOZOIC AND TERTIARY BEDS. 
XII.—FOSSILS OF THE EOCENE PERIOD. 
XIII.—FOSSILS OF THE LOUP FORK EPOCH. 
