When a horse slightly strains the flexor tendon, do not expect to discover the seat of the affection till several hours have elapsed. Then pass the hand gently down the injured limb. A small swelling may be detected. The enlargement may feel soft, slightly warm, but hardly tender. Bind a linen bandage round the leg rather tightly, and keep this constantly wet with cold water. For the three first nights, have men to sit up in the stable and perform that operation. After that time, if everything goes on well, wet the limb only during the day. Throw up the horse till more than recovered, and do not put it to full work till some period after that event. Give immediately four drachms of aloes. Allow only two feeds of corn per day; but do not turn out to graze, under the idea that it saves cost and gives a chance that the animal may be taken up sound. At grass, the horse must walk many miles to eat poor food, sufficient to support life. This kind of motion will not suit a strain, which does best with absolute rest. Keep, therefore, in a stall, and do not begrudge the necessary meat to support the life which has suffered injury, and is now enduring pain, in consequence of exertion made in your service. CLAP OF THE BACK SINEWS. When the accident is more severe, and the sprain more decided, it is spoken of as "=clap of the back sinews=;" this is a serious affair. The usual fate of the wretched animal thus maimed is to be sold to the highest bidder. It passes from a carefully-tended stable to some wretched out-shed; and its new master is made happy, if the crippled horse can only limp, and somehow get through a day's labor. No pity is wasted upon agony; "the beast," as it is now called, has to live worse, work harder, and drag out a miserable existence with the heavy burden of an almost useless limb. [Illustration: THE EARLIEST SYMPTOM OF CLAP OF THE BACK SINEWS, OR SEVERE SPRAIN OF THE TENDON. ] Clap of the back sinews results from exertion; it may be the work of an instant. The horse sometimes is pulled up, or, in severe cases, it falls. If it be pulled up, it refuses to move at a quicker pace than a hobble, and stands still again so soon as whip or spur are not applied to the sufferer's body. The maimed limb is flexed, and rests upon the toe of the injured leg. There can be no mistake now about the seat of lameness; the foot of the affected limb will hardly be put to the ground. The seat of the malady is soon declared. In a short space a tumor displays itself; it is small, hot, tender, and soft, in the first instance, though it soon enlarges, and grows very hard. The animal does not exhibit much constitutional distress, for it requires excessive pain to call forth such a display in the patient and most enduring horse. [Illustration: THE BLEMISH LEFT BY CLAP OF THE BACK SINEWS.]