306 
THE VETERINARY SCIENCE 
a few days until the soreness a^id lameness disappear, then 
blister with the following, and turn the animal out: 
Pulverized Cantharides or Spanish Fly 2 drams. 
Vaseline or Lard 1 ounce. 
Mix and there is enough to blister two or three 'times 
according to the size of the bog. Rub in well and in three 
days grease. Repeat the blister in a few weeks as soon as 
the skin is nicely healing up. It is necessary to blister sev- 
eral times before the enlargement is removed. Often where 
there is a bog spavin there is a thoroughpin in connection 
with it. For further particulars refer to last paragraph under 
the heading, "Capped Hock." 
26. Thoroughpin. 
Causes. — These are similar to those given for bog spavin. 
The enlargements are on each side of the hock near the back. 
Treatment. — The treatment is the same as that given 
for bog spavin. Never, under any circumstances, open either 
a bog spavin or a thoroughpin, for if you do, you will have a 
case of open joint to deal with. 
27. Capped Hock. 
This is a common disease. It is a swelling or thickening 
on the cap of the hock. 
Causes. — It results from an injury of some kind, such as 
may follow kicking in the stable and striking the hock against 
the stall. Some horses may do it in laying down. 
Symptoms. — There is swelling on the cap of the hock, 
which is g'enerally soft but not sore to handle. It is of a 
puffy nature, as it is mostly oil that causes the enlargement 
on account of the little bursa being injured, and thus se- 
creting too much oil. It does not lame the horse or interfere 
with his usefulness, but it is a bad blemish and an eyesore. 
Treatment. — If caused from kicking the stall, place the 
horse so that he cannot strike it. If being treated immedi- 
ately, bathe with lukewarm water and salt ; rub dry and apply 
the white liniment. Continue this treatment until the sore- 
ness and swelling is gone; then blister the thickening with: 
Pulverized Cantharides or Spanish Fly 1^2 drams. 
Vaseline or Lard 1 ounce. 
Mix thoroughly and there is enough to blister onx, cap 
four or five times. Blister light and about every two weeks. 
