This cow, reacting to the tubercular test, was killed. The bottom picture shows the extent to which tuberculosis had affected her lungs. At least ten per cent of the cattle in the United States have this dreaded and destructive disease.] =CAPPED HOCK.=--An inflammation resulting in a separation of the cap from the point of the bone of the hock. Cases of this kind are the results of kicks or bruises. In the early stage, use 2 tablespoonfuls of lead acetate in a quart of water and bathe the injured part. When there is no longer any temperature, apply a blister composed of 1 teaspoonful of biniodide of mercury and 6 tablespoonfuls of lard. Apply this every week or ten days for several months. [Illustration: EXTERIOR POINTS OF THE HORSE 1 Lip, 2 Nostril, 3 Forehead, 4 Poll, 5 Cheek, 6 Ear, 7 Mane, 8 Neck, 9 Shoulder, 10 Point or Shoulder, 11 Breast, 12 Forearm, 13 Arm, 14 Knee, 15 Cannon, 16 Fetlock, 17 Pastern, 18 Foot, 19 Withers, 20 Back, 21 Side, 22 Underline, 23 Flank, 24 Croup, 25 Tail, 26 Haunch, 27 Thigh, 28 Stifle, 29 Hock, 30 Point of Hock, 31 Cannon, 32 Foot, 33 Coronet, 34 Fetlock, 35 Pastern] [Illustration: CASTRATION] =CAPPED KNEE.=--An enlarged condition of the knee most commonly found in cattle. It is caused by cattle getting up and down on hard floors. It is usually seen in stables where stanchions are used. A baggy tumor forms at the front and just below the knee. In some instances this tumor becomes very large and the cow walks about or moves with great difficulty. Where hard floors are covered with bedding, no trouble of this kind results. Applications of hot water are excellent. Liniment is also very good. Where the tumor has long existed and is stubborn an opening should be made at the bottom so that the fluid may be discharged. A little tincture of iodine injected into the opening once a day is good and at the same time an application of iodine rubbed over the outside will assist in reducing the trouble. Use one part of iodine to eight parts of lard and continue this treatment for a month or two. =CASTRATION.=--The removal of the testicles from male animals. Castration is practiced upon all the domestic animals. Only those male animals possessing desirable characteristics are retained entire. The operations are generally performed when the male animals become troublesome. In horses the time is usually at one to three years old; in cattle one to three months old; sheep at one to four months and pigs two to four months old. Dogs, as a rule, become worthless if castrated. Cats grow to an enormous size when castrated.