98 The Diseases of Animals 
feet, in the angle formed by the bar and the wall of 
the inside quarter. They usually result from stepping 
upon stones or other hard substances. Horses with flat, 
weak feet are more liable than others to have corns. 
There is severe lameness; the horse tries to step on 
the outer edge of the foot as much as possible. The 
lameness is most marked when the horse is driven 
on hard roads. In standing, the leg is bent to take 
all weight off the affected foot. If the foot is ex- 
amined, a dark brown spot will be seen where the corn 
is located. Tapping this spot with a hammer causes 
pain. 
In most eases the dark spot is a collection of blood 
or pus that needs to be removed. A hole eut through 
the sole of the foot, allowing this fluid to escape, gives 
relief. The hole should be washed out and turpentine, 
white lotion or a five per cent solution of carbolic acid 
in water applied. The shoe should be removed and the 
animal kept in a clean stall. As soon as the discharge 
ceases, a little pine tar can be applied to the opening to 
keep out the dirt. In treating corns, avoid burning 
with caustics unless “proud flesh” forms, as this is 
likely to injure the tissues and interfere with the growth 
of new horn. A broad webbed bar shoe should be 
put on with a leather between the sole and the shoe. 
The leather is to be kept on only a few days until the 
horn grows a little, or it is likely to collect dirt. Horses 
subject to corns should be shod with wide webbed bar 
shoes to protect the feet. Wearing a shoe for too 
long a period without resetting so that it bears on the 
sole of the foot may cause corns. 
