Am. Jour. Sci.,Vol. XXXVIII, il 



Plate 



2.x3 



3.x3 



4.x3 



6.x3 7.x3 



8.X3 



10. 



11. x3 



I2.x3 



13. 



14.X2 



15.X-2 



17.X2 



16. 



18.X2 



20.X2 



19. 



21.x2 22. 23.x2 24.x2 



tki 



m $ 



American Cretaceous Mammals. 



