THE FOOT AND SHOEING. 



217 



of the coffin bone ; behind there are two ; one reaches under the coffin 

 bone and the other is fixed to the sides of the coronet bone. 



The fleshy structures. — At the back of the foot, filling up the space The fleshy 



structures. 



Fig. 43. 



Diagram to show the method of junction of horny and fleshy leaves. 

 Horn shaded. 



which lies between the wings of the coffin bone and the lateral cartilages, 

 is a thick, tough, elastic pad which converts the whole of the back of 

 the foot into a firm, soft cushion, sometimes called the " frog pad " 

 or " cushion of the heels " (fig. 41, 16). 



