_Prevention._ The first consideration is the seclusion of flocks from outside animals in affected localities. Newly purchased birds or those returning from a poultry show should be placed in strict quarantine for a few weeks until the absence of infection shall have been demonstrated. Different flocks should not be allowed to mingle, nor the members of a healthy flock to wander where the manure of another flock has been laid. Birds having diarrhœa, or any discharge from eyes, nose or beak, or any false membrane on such parts should be excluded from the flock, and the house and yard disinfected. It should not be forgotten that rabbits, guinea pigs and mice may be bearers of the infection, and that it may be introduced on the feet of dogs or their masters. Pigeons, buzzards, and carrion crows are especially dangerous as possible bearers of the infection. Cleanliness as regards food and water, buildings and yards is of vital importance. _Treatment._ The sick birds should be strictly secluded and handled by a special attendant. When the lesions appear on visible mucosæ they should be painted several times a day with a 5 per cent. solution of phenol, or a saturated solution of boric acid, or salicylic acid, potassium permanganate, iodine, or some other germicide may be used. For the bowel affection one or two drops phenol in water may be given daily, and the drinking water should be slightly charged with the same. Cleanliness, pure air, warmth, dryness and sloppy food are all important. ACUTE CATARRHAL ENTERITIS IN SOLIPEDS. Definition. Causes: Irritants swallowed, debility, improper, insufficient food, congestions, parasitisms, impaired innervation or circulation, iced water, chills, perspirations, fatigue, hot, damp weather, overfeeding, cryptogams, bacteria, newly harvested fodder, septic, or fermented food, leafy fodder, toxins, stagnant, septic water, lack of pepsin, muriatic acid and bile, diseased teeth or jaws or salivary glands. Lesions: Gastritis, congestion of small intestine and colon, in striæ, thickening, ecchymosis, ulceration, necrosis, excess of mucus with pus, villi, follicles and glands swollen. Symptoms: Fever, high colored urine, costiveness, coated tongue, red eyes, inappetence, sluggishness, emaciation, weakness, unthriftiness, colics, rumbling, diarrhœa; or more fever, suffering, anorexia, icterus, hurried breathing, pleuritic ridge, arched back, tender abdomen, rumbling, flatus, diarrhœa, critical or bloody, anxiety, debility, prostration, collapse. Prognosis. Treatment: In mild cases, careful diet, and laxatives with antiferments, in severe cases, laxatives, anodynes, antiseptics, demulcents, stimulants of peristalsis, enemata, counter-irritants, fomentations, compresses, mustard, in profuse diarrhœa antiseptics, anodynes, demulcents, calomel and chalk, bismuth, astringents, boiled flour or starch, gums. Dieting during convalescence.