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 its 
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. 
Fic. 19.—THe Watt oF THE Hoor. 
1, The toe; 2, inner toe; 3, outside toe; 4, the quarter; 5, cutigeral groove ; 
6, horny lamine. 
For observation the wall offers two faces, two borders, 
and two extremities. 
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 
