_Symptoms._ This disease cannot be readily diagnosed while the fowl is living; it is generally associated with catarrh of the crop. (See page 37.) The symptoms are similar. Post-mortem examination will show the lining of the stomach in an inflamed condition. _Cause._ The inflammation of the lining of the stomach is generally due to eating decomposing food or other poisonous matter. _Treatment._ Empty the crop as recommended under Catarrh of the crop. Give one or two tablespoonfuls of castor oil and feed on soft and easily digested food with milk or barley water. Be sure that poultry are not allowed to run under trees that have been sprayed with arsenical poisons. GOUT _Not a common ailment_ _Symptoms._ The bird sometimes loses weight, and as the disease develops shows stiffness and an indisposition to stand. In some cases small nodules containing crystals of urate of soda occur on the underside of the toes. _Cause._ Failure of the kidneys to perform their normal functions and consequent accumulation of urates in the bird’s system in excessive quantities. Gout may be due to too concentrated feeding. _Treatment._ Medicines and treatment are of little avail. Endeavor to prevent by feeding a mixed diet. _Post-mortem._ In one form of this disease, known as visceral gout, the liver and other abdominal organs are covered over with a powder-like deposit of the crystals of urate of soda. HEART DISEASES _Not common, and cannot be treated_ The heart is an organ that is subject to several serious diseases, but these cannot be detected with any certainty while the bird is living, and treatment cannot be recommended as likely to be successful. Post-mortem examination may show the following symptoms: 1. The heart sac full of serous liquid, in the case of pericarditis, or dropsy of the heart sac. 2. A reddening of the membrane lining the heart, in the case of inflammation (endocarditis). 3. An enlarged heart, in the case of enlargement of the heart. 4. Hemorrhage, in the case of rupture of the heart and of the blood vessels. INDIGESTION _Disorder of the intestinal tract, that is not very serious_ _Symptoms._ The bird mopes and shows signs of a capricious appetite. Either diarrhea or, less commonly, constipation, may be a symptom. _Cause._ Disorders of the digestive tract, due to error in dieting—for example, overfeeding, or too little green food and not enough exercise. _Treatment._ Alter the feeding, see that the water is clean, and give a dose of Epsom salts. (See page 9.) JAUNDICE _Not a common disease_ _Symptoms._ A yellow comb may indicate jaundice, but there are no definite external symptoms. Post-mortem examination shows distention of the gall bladder, due to an excessive secretion of bile.