CORNS. 
179 
aas been thoroughly thinned down, so as to stimulate the 
parts to throw out a fresh secretion of healthy horny 
substance. 
In bad cases of corns, where the inflammation has ren¬ 
dered the parts very sensitive, a bar-shoe will be of service, 
so chambered, that there will be no pressure on the part 
affected. This may be kept on for a couple of months 
or so, but not longer, as in removing one complaint it might 
induce another; for few frogs could bear the constant 
pressure of the bar-shoe; and the heel being subjected 
to no pressure while they are used, may induce a soft 
and bulbous condition of the heel, which would be the cause 
of constant lameness. 
In a majority of instances corns are either confined to 
the inner quarter of the foot, or crust, caused in conse¬ 
quence of contraction being generally seated in the inner 
quarter. The shoe being left free on the inner side, if 
a corn exists there, may prove of much advantage if the 
country is not too heavy, or if the horse is not required 
to perform rapid movements. 
If corns have once existed to a considerable extent, they 
are liable to return ; therefore, before shoeing, the seat of 
the corn should be well pared out, and the chloride of 
antimony well rubbed on it. The seated shoe (which we 
have described in our chapter on shoeing) should be used, 
with a web sufficiently thick to cover the situation of 
the corn, and extending as far back as possible without 
producing injury to the frog. When the horn has grown 
to some extent, if the horse is turned out to grass with 
a bar-shoe in the first instance, and afterwards with a shoe 
fastened on one side only, or with tips, it will frequently 
prove of much service. 
In all cases where horses have low weak heels, the 
