Fig. 4. A section of the foot. 



1. The coronet bone. 



2. The coffin bone. 



3. The navicular bone. 

 a. The wall. 



h. The sole. 



c. The cleft of the frog. 



d d. The frog. 



e e. The fatty frog or elastic cushion. 



J. The sensitive sole. 



g. The sensitive frog. 



hhh. Tendons of the muscles which bend the foot. 



i. Part of the pastern bone. 



k h Tendons of the muscles which extend the foot. 



I. The coffin joint, 



m. The navicular joint. 



n. The coronary substance. 



0. The sensible laminae, or covering of the coffin bone. 



