38 



DISEASES OF THE HORSE'S FOOT 



is known as the Toe, which again is distinguished as 

 Outside Toe or Inside Toe, according as the horn to it:, 

 inner or outer aspect is indicated. The remainder of the 

 external face of the wall, that running back to the heels, is 

 designated the Quarters. 



In the middle region of the toe, the wall following the 

 angle of the bones is greatly oblique. This obliquity 

 decreases as the quarters are reached, until on reaching 

 the heels the wall is nearly upright. 



Fig. 19.— The Wall of the Hoof. 



I, The toe; 2, inner toe; 3, outside toe; 4,_ the quarter; 5, eutigeral 

 groove ; 6, horny lamina?. 



For observation the wall offers two faces, two borders, 

 and two extremeties. 



The External Face is convex from side to side, but 

 straight from the upper to the lower border. Examined 

 closely, it is seen to be made up of closely-arranged 

 parallel fibres running in a straight line from the upper 

 to the lower border, and giving the surface of the foot a 

 finely striated appearance. In addition to these lines, 

 which are really the horn tubules, the external face is 



