rative
process stops, and the wound obstinately refuses to effectually close.

In such cases we have derived excellent results with the actual cautery.
The animal is cast, the foot firmly secured by fastening it upon the cannon
of another limb, and the animal chloroformed. A practical point to be
remembered in this connection is that all necessary fixing of the limb is
easier performed if the chloroform is administered first. With the patient
thus secured we first of all ascertain by means of the probe whether or no
the non-healing of the wound is due to the presence of a fistula. Decided
in the negative, we take an ordinary flat firing-iron, and with it cut away
a portion of the skin immediately around the still open wound, carrying
our incisions deep enough to 'scoop' out a large portion of the new
inflammatory tissue beneath. With the loss of pressure from beneath,
occasioned by the removal of so much of the cicatricial tissue, the
epidermis the more readily closes over the wound. To a large extent also
this new growth of epidermis is helped by the renewal of the inflammatory
phenomena brought into being with the cauterization.

2. SUB-HORNY QUITTOR.

_Definition_.--A fistulous wound of the foot in which the lower and blind
end of the fistula is situated below the level of the coronary margin of
the wall.

_Causes_.--These, again, will be practically the same as those mentioned
in the cause of cutaneous quittor--namely, bruises, punctures, wounds--in
fact, any injury upon the coronet severe enough to cause death of tissue
and a suppurating wound. We may thus expect sub-horny quittor to follow
upon treads, overreach, accidental injuries with the stable-fork, and kicks
from other animals.

Sub-horny quittor may also arise without original injury at all to the
coronet. Either from a violent blow upon the hoof, or from the animal
himself kicking violently against a wall, death of a portion of the
sensitive structures takes place within the hoof, suppuration ensues, and
the formation of quittor commences. With the escape of the pus at the
coronet the quittor is fully formed.

Any other diseased condition of the foot in which suppuration is present
may in like manner terminate in quittor. In complicated sand-crack,
suppurating corn, or in ordinary pricked foot quittor may be a sequel. In
these conditions the pus formation either goes unnoticed or is neglected,
and after seriously invading the sensitive structures wit