THE 
VETERINARIAN. 
VOL. XXIV, 
No. 287. 
NOVEMBER 1851. 
Third Series, 
No. 47. 
LAMENESS IN HORSES. 
By William Percivall, M.R.C.S. and V.S. 
[ Continued from p. 549. ] 
Corn. 
WE have seen that contraction is a product of shoeing : 
another disease ascribable to the same cause is corn . 
The Name of corn no doubt has been borrowed from human 
medicine ; perhaps because pressure was found to be the cause, 
or, it might be, because there are corns in the horse over which 
the horn grows exceedingly thick, the same as the cuticle does 
over our own corns. So far identity of name is warranted ; but, 
if the comparison be carried further than this, misconception 
will certainly result ; corn in a horse being, pathologically re- 
garded, a different disease from human corn. 
DEFINITION. — A corn consists in contusion of the sole of the 
foot, producing ecchymosis or extravasation of blood, which 
permeates the pores of the horn, and turns it red; or it may 
consist in a collection of purulent matter in the part, in which 
case it is denominated a festered corn. 
The Seat of Corn is commonly the angle of the sole of the 
fore foot; — the angle meaning the part included between the 
heel of the wall and the bar ; — and the inner angle is more fre- 
quently its seat than the outer ; reasons for which predilections 
will be given hereafter. A contusion in any part of the sole is, 
pathologically speaking, a corn, though we are not in the habit 
of so calling it. The French veterinarians have different names 
to denote the two kinds of corn : they call our proper corn 
bleime, while the other they designate foulure. In fact, alto- 
gether, they distinguish four different corns : — the foulure, or 
bruise from tread; the dry, the moist, and the festered corn. 
Predisposition to Corn exists in broad, flat, weak feet, 
with heels so low or curved in as not at all or hardly to project 
beyond the level of the sole. In such feet there is a great 
VOL. xxiv. 4 n 
