199 : 
In cases where inflammation is present, it will be necessary to give an 
aperient, say, four to six drachms of aloes, and to feed the animal on 
laxative diet. Rest is essential. Locally, cooling lotions, such as one 
composed of spirit one part, solution of acetate of lead one part, water eight 
parts, may be applied at frequent intervals, Afterwards, and in dropsical 
cases, from the first the joint may be blistered with ointment of biniodide of 
mercury, or with a tincture made by dissolving thirty-five grains of 
bichloride of mercury in two ounces of methylated spirit, and adding forty 
grains of biniodide of mercury. If this does not prove efficacious, firing is 
necessary, and will almost certainly prove curative, as, fortunately, all 
varieties of bog-spavin, excepting the rheumatic, prove almost universally 
amenable to judiciaus treatment. The fluid effused cannot be drawn off by 
puncturing, as it is contained in the true hock joint, which must on no account 
beopened. We have'not seen many cases of so-called blood+spavin. By this 
term is signified a varicose condition of the large vein running over the 
inside of the hock. Such a condition is very rarely met with. 
’ 
CAPPED HOCK, KNEE, AND ELBOW. 
THERE are two varieties of capped hock. The commoner kind of this 
affection is a serous sac, situated at the point of the hock, between the skin 
and the tendon situated there. It is generally due to an injury, the result of 
a sharp blow sustained in kicking, or in other ways, Tf there be heat in the 
part indicating inflammation, cooling lotions should be applied locally ; and, 
when the acute stage is over, the ointment of biniodide of mercury will prove 
valuable, if repeated at intervals of several days. There is a bursa situated 
at the point of the hock; and, when this becomes inflamed, as the result of a 
sprain or other injury, the second yariety of capped hock is produced. This 
bursal enlargement, which is rarely met with, can easily be distinguished 
from the other variety of capped hock, by the fact that it makes its 
appearance on both sides of the joint of the hock, as an elastic fluctuating 
tumour or swelling. Although the previous variety cannot be regarded as 
an unsoundness, this form does render the animal unsound. The only 
treatment of value for this affection, is either blistering with ointment of red 
iodide of mercury, or firing. General rest is necessary, and local rest of the 
limb should be secured: by the application of a high-heeled shoe. 
Capped knee is due to a swollen condition of the bursa in front of 
the knee joint. This bursa is that over which the tendon in front of the 
knee plays; and it is not unfrequently injured by blows, or by the entrance 
of thorns into it, when it becomes swollen, and distended with effused fluid. 
As soon as the injury is sustained, pain and lameness usually manifest 
themselves. In these early stages, rest, an aperient of aloes, and the 
application of warm water fomentations are requisite. As the inflammation 
passes off, it is well to blister the swollen part with ointment of equal parts 
of biniodide of mercury and of cantharides, If this does not cause the 
absorption of the effused fluid, is is best to puncture the distended sac, at its 
