156 
The treatment of quittor, which varies. with the nature of the cause, 
requires patience and skill, as a cure is not often made before the lapse of 
about ten weeks or so, and may be a much longer affair, if the disease has 
already been of some duration. In the first place, the shoe should be 
removed at once and the sole pared and examined, in order to discover any 
possible wound, prick, or corn. If matter be found in the foot, as the result 
.of any of these causes, an opening must be made at the sole, in order to 
liberate it, and allow of its escape when renewed. Then the foot should be 
poulticed for several days, the bran being prevented from entering the 
wound, by placing a piece of cloth over it. The coronet may be Dblistered 
with advantage, by means of the ointment of the red iodide of mercury. 
Shoeing with a bar shoe is ordered by us when the foot is much injured, and 
the animal seems to require it. Into the wound, it is a good practice to 
inject a solution of bichloride of mercury from above—half a drachm to the 
ounce of water, with a few drops of hydrochloric acid added. This 
preparation is a safe and efficient method of removing the diseased 
walls of the purulent channel, but it must not be repeated more than twice. 
If the tumour at the ‘coronet have no opening, it will be best to make an 
orifice with a knife, prior to blistering the elevated and swollen tissues. 
When the disease does not take its origin from below, or when no prick or 
‘corn can be discovered, it is our custom to probe the wound at the coronet 
with the view of ascertaining its extent. The veterinarian then passes a 
bistoury with a hidden knife (é¢stourz caché) into the sinus, and, as ‘he 
withdraws it, the instrument cuts through the diseased tissues. In addition 
to these measures, we may inject a solution of bichloride of mercury. 
of the same strength as mentioned into the wound, not repeating it 
again unless necessary. If the wound still has an unhealthy appearance 
in four or five days’ time, a second injection may be made. In the 
‘meantime, the foot should be enveloped in poultices, which should be 
renewed at least every day. There is no occasion to use strong astringent 
applications. Moreover, the practice of burning away the diseased tissue at 
the coronet with a red-hot iron, though sometimes a very good one, is not 
often necessary. In some protracted cases, when all other measures have 
been taken, and still the sinuses will not heal, it is customary to pusha 
pointed red-hot iron to their bottom. This operation is often attended with 
very good results, but must be very carefully and judiciously performed. In 
those quittors, in which the pedal bone or the lateral cartilages have become 
involved, the disease is consequently of a very grave nature, and it will be 
necessary for the veterinarian to remove the altered structure. This serious 
operation is fortunately one not frequently called for. 
TREAD. 
By the term “tread,” we understand the infliction of a wound, caused by the 
shoe of either fore or hind foot, upon the coronet of the opposing fore or 
hind foot respectively. Tread is not a common occurrence, except in heavy 
