are kept and worked under adverse
circumstances.

_Symptoms._--Lameness, lasting from one to three or four days, nearly
always precedes the development of the strictly local evidences of
quittor. The next sign is the appearance of a small, tense, hot, and
painful tumor in the skin of the coronary region. If the skin of the
affected foot is white, the inflamed portion will present a dark-red or
even a purplish appearance near the center. Within a few hours the
ankle, or even the whole leg as high as the knee or hock, becomes much
swollen. The lameness is now so great that the patient refuses to use
the foot at all, but carries it if compelled to move. As a consequence,
the opposite leg is required to do the work of both, and if the animal
persists in standing a greater part of the time it, too, becomes
swollen. In many of these cases the suffering is so intense during the
first few days as to cause general fever, dullness, loss of appetite,
and increased thirst. Generally the tumor shows signs of suppuration
within 48 to 72 hours after its first appearance; the summit softens, a
fluctuating fluid is felt beneath the skin, which soon ulcerates
completely through, causing the discharge of a thick, yellow, bloody
pus, containing shreds of dead tissue which have sloughed away. The sore
is now converted into an open ulcer, generally deep, nearly or quite
circular in outline, and with hardened base and edges. In exceptional
cases large patches of skin, varying from 1 to 2-1/2 inches in diameter,
slough away at once, leaving an ugly superficial ulcer. These sores,
especially when deep, suppurate freely, and if there are no
complications they tend to heal rapidly as soon as the degenerated
tissue has softened and is entirely removed. When suppuration is fully
established, the lameness and general symptoms subside. When but a
single tumor and abscess form, the disease progresses rapidly, and
recovery, under proper treatment, may be effected in from two to three
weeks; but when two or more tumors are developed at once, or if the
formation of one tumor is rapidly succeeded by another for an indefinite
time, the sufferings of the patient are greatly increased, the case is
more difficult to treat, and recovery is more slow and less certain.

This form of quittor is often complicated with the tendinous and
subhorny quittors by an extension of the sloughing process.

_Treatment._--The first step in the treatment of an outbreak of qu