SYMPTOMS.—There may be a simple bruise, without perforation of the skin, which, though not strictly speaking a broken knee, may be conveniently regarded as such; the knee is hot, swollen and painful, and sometimes hair is removed, or there may be abrasion of the skin, or it may be cut through, torn and jagged, and the underlying tissues more or less injured, the sheath of the tendon being exposed. If no glairy fluid issue at the time the joint is not open, and there is no cause for uneasiness about anything except the blemish which may remain, but which will generally be very slight if suitable treatment be adopted. A more serious form of Broken Knee is where it is bruised, cut or lacerated, and opened down to the joint, accompanied by the escape of clear synovial fluid, “joint oil,” like the white of an egg; TREATMENT.—The horse’s head must be racked up for a few days or placed in cradles, to prevent his biting the wound. In broken knees where the skin and subtextures are very much contused, and where such a quantity of sand has become imbedded that suppuration is a necessary consequence, it is well to put on a turnip or carrot poultice (but never bran, for it acts as an irritant). A leg of a woolen stocking should be drawn up over the knee and fastened around the leg at the lower part with a piece of tape, then, from above, the space in front of the knee can be filled with mashed turnip; the upper part of the stocking can then be fastened as the lower. The poultice may be repeated morning and evening for about three days, when suppuration will most probably be established, and no further treatment be necessary unless the granulations become too luxuriant, when the VETERINARY OIL may be applied, but not too freely or too often. In a few days the scab will fall off, and if cicatrisation has not taken place, the process may be hastened by washing the part three times a day with tepid water, or better, with the HUMPHREYS’ MARVEL WITCH HAZEL. Give B.B. Stings of Bees, Hornets, &c. Sometimes where a horse has been tied near a swarm of bees, if sweaty or offensive to them, the swarm has been known to attack him, producing pain, inflammation, swelling, and sometimes death. Hornets are as bad or worse. Apply freely HUMPHREYS’ MARVEL WITCH HAZEL. Give A.A., fifteen drops, and repeat it every hour. CHAPTER III.—PART I. DISEASES OF THE FEET AND LEGS Lameness The adage “No roof, no house,” is matched by “No foot, no horse,” because in either case the value of the thing is measured by the part that is wanting. So lameness or its absence is the essential part to be looked after in a horse. Fortunately it is not always necessary to decide in our practice the precise point, structure, tendon or muscle involved in order to cure, but it is always desirable. Hence the following points are suggested.