60 



THE HORSE S FOOT, 



Fig. 5. 



Fig. 5. — Two views of the navicular bone. 



a. The under surface. 



1. The surface which forms — with the tendon passing under t— • 



the navicular joint. 



2. A roughened surface for the insertion of a tendon. 

 h. The upper surface. • 



1. The surface by which the navicular bone is joined to the 

 coffin boue. 



2 2. The surface which forms part of the coffin joint. 



3 A deeply roughened surface for the attachment of the strong 



ligament that binds the navicular to the coffin bone. 



Fig. 6 



Fig 6. — A section of the foot 



1. The coronet bone. a. The wall. 



2. The coffin bone. b. The sole. 



3. The navicular boue. c. The cleft of the frog. 

 d d. The frog. 



e e. The fatty frog or elastic cushion. 



/. The sensitive sole. 



g. The sensitive frog. 



hhh. Tendons of the muscles which bend the foot. 



t. Part of the pastern bone. 



k k. Tendons of the muscles which extend the foot. 



I. The coffin joint. 



fn. The navicular joint. 



ru The coronary substance. 



0. The seasible lamisis, or covering of the coffin bone> 



