322 DADD'S VETERINARY MEDICINE AND SURUERY. 
hind foot; or it may arise from a bruise inflicted in the act of 
lying down on a hard floor. 
Treatment.—In the early stage, and when there is nothing but 
fluid in the sac, an opening should be made into the lower part of 
it, by means of a thumb lancet. After the fluid has been evacu- 
ated, by pressure, inject into it an astringent, composed of pyrolig- 
neous acid and water, equal parts; and rub the exterior of the 
tumor, twice daily, with a small quantity cf cod-liver oil. The 
cod-liver-oil will act as a glandular stimulant, and thus aid in the 
absorption of the tumor. A seton, inserted through the tumor, 
sometimes has a very good effect: but if the tumor be large and 
unsightly, the services of a surgeon will he required for ita removal, 
by means of the scalpel. 
Caprep Hocx. 
Capped hock consists of tumefaction, or enlargement at the 
point of the hock. Occurring, as it does, at a very prominent 
and exposed part of the limb, it is almost sure to attract notice ; 
hence is not only an eye-sore, but a serica defect, and, if accom- 
panied by lameness, the animal may be pronounced unsound, 
during the period of lameness. The tumor is the result of enlarge- 
ment of a synovial sac which lies between the bone and the tendon 
gastrocnemii, This sac contains synovia, and it is furnished for 
the purpose of lubricating the parts for the prevention of friction. 
The skin, also, becomes thickened, or, rather, is in a state of hy- 
pettrophy (morbid growth), which add largely to the size of the 
tumor. 
Causes.—Capped hock is generally produced by a blow or 
bruise. It is almost always occasioned by the whiffle-tree coming 
in contact with the parts. The animal may, however, injure the 
parts in the act of kicking. The parts may also be bruised in the 
act of lying down or rising in the stall. Therefore, not knowing 
any other cause for capped hock, we may safely infer that it is the 
result of external injury. 
Treatment.—In the early or inflammatory stage, refrigeratirg 
lotions are indicated. Take of “ 
No. 47. Salammonia......cccece cece cecevess 1 of 
Nitrate Of potass.. ses secessescececers 1 02 
WRteE cisco sak edie as) oieelRacess 1 pint. 
