\ 
436 REPORTS OF CASES. 
17th the horse was out on his usual round of driving. The 
calculus weighed six ounces, and by examining the photo it 
can be seen that the rough edges caused considerable lacera¬ 
tion. 
HYDROCHLORIC ACID AND PEPSIN FOR NECROSIS. 
By H. Neher, D.V.S., Veterinarian to Metropolitan Street Railway Co., N. Y. 
Subject, a large bay gelding, nine years old, sixteen hands 
high, weight 1700 pounds. Used for switching cars in depot. 
Got the right hind leg in the cable slot, between the hock 
and ankle; the tissues were torn to the bone on either side of 
canon ; periosteum also torn away from bone. The slot had to 
be wedged open so as to draw the leg back far enough to an 
opening large enough to allow hoof to come out. I had him 
removed to my hospital, put in a large box stall, the bedding 
being very fine straw, so as not to hinder his movements 
while going around the stall. I applied carbolized cotton to 
the parts and wrapped them with a bandage, “not too tight,” 
and left orders to have the part wet occasionally with water 
medicated with tinct. opii, which was done. In a few days 
I noticed the bone began to change color, the color running 
to a distinct margin, which, in time, exfoliated. I then thought 
I would use hydrochloric acid and pepsin, with the following 
result: I first took fifteen drops of acid to three ounces of 
water and sponged the parts thoroughly; waited fifteen or 
twenty minutes, then took the pepsin in proportion of fifteen 
grains to three ounces of water, injected the parts well, 
sponged thoroughly and wrapped up in cotton Soaked in the 
the pepsin solution, and applied bandages. Continued this 
treatment for ten or twelve days; had the animal walked as- 
