VI 



BULLETIN No. 4. 



Page. 



Notes on the geology of Northeastern New Mexico, by O. Sfc. John 279 



The upper basin of the Canadian 279 



Tiie Tertiary plateau 285 



The Moreno' Valley 289 



The Vermejo parks 296 



The Capulin 305 



Geographical variation among North American Mammals, especially in respect 



to size, by J. A. Allen 309 



Sesual, individual, and geographical variation in Leucosticte tephrocotis, by J. A. 



Allen 345 



Descriptions and illustrations of fossils from Vancouver's and Sacia Islands 



and other northwestern localities, by F. B. Meek 351 



Carboniferous species 354 



Cretaceous species 356 



Tertiary species 374 



Note on the new genus Uintacrinns, Grinnell, by F. B. Meek 375 



