322 DADD'8 VETERINARY MEDICINE AND SURGERY. 



hind foot; or it may arise from a bruise inflicted in the &ct of 

 lying down on a hard floor. 



T)'eatment. — 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, ec^ual parts; and rub the exterior of the 

 tumor, twice daily, with a small quantity of cod-liver oil. The 

 cod-liver-oil will act as a glandular stimulant, and thus aid in the 

 absorption of the tumor. A seton, inse»-ted through the tumor, 

 sometimes has a very good effect ? but if the tumor be large and 

 unsightly, the services of a surgeon will be required for ita removal, 

 by means of the scalpel. 



Capped Hock. 



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 j 

 hence is not only an eye-sore, but a sericis defect, and, if accom- 

 panied by lameness, the animal may be jironounced 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- 

 pertrophy (morbid growth), which add largely to the size of the 

 tum^^r. 



Ckmses. — 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 alfjo be ])ruised 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 

 r^ult of external injury. 



Treatment. — In the early or inflammatory stage, refrigerating 

 lotions are indicated. Take of 



No. 47. Sal ammonia 1 oa. 



Nitrate of potass 1 oz. 



Water I pint. 



