OXli 


C atalo gu e, Sy s t emati c, o(vert e brat a of the eocene of N e;w 

60 Me xi c 0 collected in 1874. E. D. Cop e, A. M. paleontologist. 
(Geographical explorations and surveys Wes t 0 f t he IOÜth me r idia 
n. First lieut. Geo. M.W he eIe r, corps of engineers, in charge.) 
(Engineer department, U. S. army.) 8. Washington 1871>.