l of diseased cartilage
with the curette) are given in Volume three of Merillat's "Veterinary
Surgical Operations."

Treatment by injection of caustic solutions has many advocates and
because of the fact that, in many instances the condition is such that
they are not desirable surgical cases and also because some animals may
be put in service before treatment is completed, the injection method is
popular.

The mode of treatment advocated by Joseph Hughes, M.R.C.V.S.,
constitutes a very successful manner of handling quittor and we can do
no better than quote Dr. J.T. Seeley[33] on his manner of using this
particular treatment.

[Illustration: Fig. 37--Hyperplasia of right fore foot, due to chronic
quittor.]

Preparation.--First remove the shoe, have the foot pared very
thin and balanced as nicely as possible. Moreover, all loose
fragments of horn must be detached and all crevices cleaned
thoroughly.

Next, have the leg brushed and hair clipped from the knee or hock
to the foot and scrubbed with ethereal soap and warm water, after
which the foot must be scrubbed in like manner. The foot is then
placed in a bichlorid bath several hours daily, for from two to
five days, depending upon whether or not soreness is shown. The
bichlorid solution is 1 to 1,000 strength.

On removing the horse from the bath a liberal layer of gauze is
soaked in 1 to 1,000 bichlorid solution and placed so as to cover
the entire foot. On discontinuing the bath, cover the foot with
gauze saturated with a 1 to 1,000 bichlorid solution. This is to be
covered with absorbent cotton and a gauze bandage, and over all is
placed an oil cloth or silk covering. This pack is kept moist with
bichloride solution for forty-eight hours. The foot is then ready
for injection.

[Illustration: Fig. 38--Chronic quittor, left hind foot. Showing
position assumed because of painfulness of the affection.]

Preparation of the Injection Fluids.--Have on hand a pint of a
one per cent aqueous solution of formaldehyd made under cleanly
conditions, even to a clean bottle and cork, and a clean container
when ready to use the liquid. Prepare also a bichlorid of mercury
solution as follows: Hydrarg. Chlor. Corros. 3IV; Acid Hydrochlor.
3Iss.; Aqua Bulliens, Oij. This should be thoroughly triturated,
and then filtered into a clean bottle, when it is