_Treatment._ This is mainly prophylactic. The first step must be to separate the sick and healthy, destroying the former, or shutting them up in a special enclosure apart from all other birds. In the case of valuable chickens, their eggs may be set under other hens and the young raised apart from the suspected flock. This may even be attempted in pigeons, the common eggs being removed and the valuable ones put in their place under a healthy sitting dove. In the case of pigeons that have been recently through the disease they should be kept strictly by themselves, even though they may appear to have regained perfect health. The dead bodies must be burned or deeply buried. Sparrows and even rabbits dying in the vicinity must be similarly disposed of, and where the disease prevails sparrows and small birds may be exterminated as probable bearers of infection. The purchase of strange birds must be carefully guarded, none being taken that show weeping eyes, nasal discharge, labored or wheezing breathing, and all new birds should be placed by themselves in quarantine for ten to fifteen days. Finally a thorough disinfection of the place where the sick have been is of first importance. Thorough cleaning of the poultry house, followed by a coat of white-wash, every gallon of which contains four ounces of chloride of lime, or one drachm of mercuric chloride will usually prove effective. The poultry runs should be liberally sprinkled with a solution of sulphuric or hydrochloric acid, one part to 1000. The same may be used on the building, which may further be fumigated by burning sulphur. Poultry shows should be kept under the most rigorous sanitary supervision. _Curative treatment_ is only profitable in the case of specially valuable birds, and even then only, as a rule, when the disease is confined to the nose, mouth, larynx and pharynx. The affected parts may be brushed with a solution of chloride of iron (1 dr. of the tincture to 1 oz. water), nitrate of silver (2 grs. to 1 oz. water), sulphide of calcium (½ dr. to 1 oz. water), tannin (10 grs. to 1 oz.). Tincture of iodine may be applied direct, or a solution of carbolic acid or of creosote or creolin (1 part to 50) will often succeed. Thomassen recommends the removal of the false membranes and the application of boric acid followed by dry sulphur. Benoist says the majority recover when made to inhale the fumes of oil of turpentine evaporated at a gentle heat twice a day. As internal medication, or to correct the intestinal affection, sulphate of iron may be dissolved in the drinking water, or salicylic acid may be given in pill form with molasses. CHRONIC PHARYNGITIS.