120 HORSE-BREEDING FOR FARMERS CHAP. 
Thoroughpin 
Thoroughpin is shown by swellings, soft or hard, 
on both sides of the hock, under the tendon which is 
attached to the cap of the hock. If they are soft, 
they are usually wind-galls, and except in appearance, 
of littke moment. They are the result of strain, 
overwork, or constitutional local weakness. 
Treatment.—Rest ; cold water ; friction ; pressure 
by truss or bandage. 
Bog Spavin 
This disease resembles a wind-gall in its character 
and is situated inside the hock joint. For practical 
work it is of no great consequence; it is, however, an 
unsightly sign of local weakness that pulls down a 
horse’s value. 
Capped Hock 
Capped hock is due to kicking in the stable, or in 
harness, or to standing and slipping in badly-paved 
stables. 
Treatment.—Cold water and friction ; hobble the 
hind legs if a kicker. 
Sandcrack 
This is generally a crack from the coronet down 
the hoof. 
Treatment.—Pare out the crack and cut off the 
crack above and below by searing with a hot iron; 
rest, and keep the crack clean with antiseptic lotion. 
