EXPLANATION OF PLATE IX. 



jpigures four fifths natural size. 



Orohippus major. 



Fig. I. — Right femur, anterior view, length estimated. 



Fig. 2. — Right fibula. 



Fig. 3. — Right tibia, anterior view. 



Fig. 4. — Calcaneum. 



Figs. 5 and 6. — Astragalus and navicular. 



Fig. 7. — Metatarsals and phalanges. 



Last Fig. — A carnivorous sacrum, probably belonging to the brain, de- 

 scribed on pp. 20-22. 



