SOME CLINICAL OBSERVATIONS. 
277 
sive, we decided to try it first* before making the large removal 
and division required for the operation, and which always de¬ 
mands such long rest, or may be followed by deformities or per¬ 
manent lameness, too commonly observed as a consequence of the 
cicatricial adhesions between the perforans tendon and the pos¬ 
terior face of the navicular bone. Therefore, the hoof of the 
sole, frog, the internal bar were thinned out, and then a pencil 
of sublimate was introduced into the fistula down to its bottom, 
following its course, which was slightly oblique. A tar dressing 
of oakum was laid over the sole, and held in place by a piece of 
leather placed under the shoe. The animal was put in slings. 
During the day following this cauterization by the sublimate, 
the lancinations were frequent, the pain great, but the next day, 
say 24 hours after the cauterization, a sensible improvement ex¬ 
isted, and the following days, the pain diminished more and 
more, to such an extent that 12 days after its entrance to the 
hospital, the horse was no longer lame, walking or trotting. 
Two days after the shoe was taken off the fistula was entirely 
obliterated by a greyish scar, formed by the bichloride of mer¬ 
cury, under which the cicatrization was no doubt going on regu¬ 
larly, as the animal was no longer lame. He resumed his work 
a few days after. 
Observation III .—This lameness was due to an incomplete 
coxo-femoral luxation. A four-and-a-half-year-old colt, while 
going out of the stable, slipped and fell heavily on the left side. 
When up again, he was found very lame on the left hind leg, 
and two days later was brought to Prof. Peuch,—presenting the 
following condition : In standing the left hind leg was off the 
plumb line, and scarcely rested on the ground with the toe of 
the foot. The stifle, as well as the external face of the thigh, 
presented a swelling, marked principally at the coxo-femoral 
joint. To make the horse walk, he had to be urged much, as 
the motions of the left hind leg seemed very painful. Locomotion 
was very difficult, the lame leg being scarcely raised from the 
ground, moved to a very limited extent; the various parts of the 
leg seemed immobilized ; the animal hesitated to rest 011 his leg, 
which was supported by the entire plantar surface. The point 
of the left hock was a little higher than that of the right; pro¬ 
gression of the animal did not take place in a straight line, but 
rather sideways ; the body of the horse seemed to be curved to 
* The trochiscus is made as follows:—1$. Sublimate, I part; starch, 2 parts ; mucil¬ 
age, q. s. to make a paste, which is afterwards divided and rolled in conical or pencil 
forms. 
