=THRUSH.=--A diseased condition of the secreting surface of the fatty frog in the foot. In severe cases the horny part often detaches from the sensitive tissue within. Bad shoeing is a common cause of the trouble, or anything else that prevents the frog from coming in contact with the ground. Lameness is sometimes associated with the disease. Treatment consists of careful cleaning, followed with linseed meal poultices if lame. After the foot is made dry, insert calomel into the little cavities. The calomel can be kept in and the dirt kept out by using paper or cloth plugs. Follow this treatment until normal condition is attained. =THUMPS.=--This disease is limited in its action to pigs. Its cause is not definitely known. It is recognized by a peculiar contraction of the diaphragm in young pigs. While the pig may eat fairly well the disturbance is associated with digestion. Such patients like to lie around and take very little exercise. The disease is more common where one kind of food like corn is fed. The old common method was to cut off the ear. The common practice now is to give a purgative so as to relieve the stomach and bowels of accumulated material. The food should be changed and from 1 to 2 tablespoonfuls of Epsom salts should be given. The jerking movement of the muscles may be relieved or stopped by using laudanum, say, four drops to 1 or 2 teaspoonfuls of aromatic spirits of ammonia in a half pint of water. =TICK FEVER.=--See Texas Fever. =TRICHINOSIS.=--A disease caused by the trichina, a minute worm that affects people, hogs and rats. People become affected with the disease from raw or partly cooked pork. These worms are killed by thorough cooking or by the process of hot pickling and curing meat products. Hogs become affected through eating offal and rats about the slaughterhouses. Hogs that are fed on green grass and other wholesome food, free from these minute worms, are less likely to have trichinæ embedded in their flesh and muscles. Hogs do not seem to be bothered with the trichinæ, but people suffer very severely, as both soreness in the muscles and fever result. A few days after eating the trichinæ, the worms multiply very rapidly in the digestive tract, from which they migrate to other parts of the body and work their way through the tissues. There is no remedy in way of treatment when affected. Prevention is the one cure. Inasmuch as five to ten per cent of hogs are affected, it is advisable that all pork or ham be eaten only after most thorough cooking.