400 
T. D. HINEBAUCH. 
pression. Should any region other than the one just in¬ 
dicated be affected, similar symptoms will manifest themselves 
by special movement or manipulation of the diseased part. 
When the disease occurs in mares there is frequently 
slight tumefaction of the vulva, which extendsdnto the vagina 
a variable distance. Underneath the external membrane the 
connective tissue is engorged with serum, until in Some in¬ 
instances the swelling assumes immense volume. Fomenting 
the swollen parts for a considerable length of time (from-one 
half to two hours) reduces them to nearly their normal con¬ 
dition. The effect, however, is not permanent, the parts be¬ 
coming infiltrated in the course of two or three hours. The 
above condition exists regardless of pregnancy, animals not 
in foal showing the same condition as those which are in foal. 
I am at a loss to state what should induce the above symp¬ 
toms unless it be merely external manifestation of a general 
diseased condition of the generative and urinary organs. 
Pregnant mares showing the above symptoms do not always 
abort, but give birth to a healthy foal at the end of the usual 
period of gestation. 
A number of those cases which came under my observa¬ 
tion showed well-marked pleuritis and pleurodenia, the pleurisy 
being very severe and accompanied by a fever ranging from 
103 to 104 degrees. With vigorous treatment it usually sub¬ 
sided within twenty-four to forty-eight hours, the joints then 
gradually becoming affected until the typical form became 
established. 
Duration of the Attack .—There is no definite limit to the 
time a horse may suffer from a single attack. Mules, which 
also are subject to the disease, have a severer form which lasts 
much longer. As far as my experience goes, I have never 
.seen a mule recover entirely under from five weeks to as 
many months, and are more apt to remain permanently unfit 
for work. 
Some cases recover in a week or ten days, while others 
linger for several weeks or months. This is especially the 
case if the acute form gives way to the chronic. Colts yield 
