_Treatment._ In the milder cases plenty of open air exercise and a laxative diet may succeed. In the more severe cases it is usually requisite to unload the rectum mechanically. The dog is laid on a table, and the oiled finger introduced through the anus, lubricates the mucosa as far as it can be reached. Then little by little the firm mass may be disintegrated and removed being steadied by the other hand applied on the abdomen. The handle of a teaspoon or a special spoonshaped curette may at times replace the finger to advantage, but must be used with due judgment, in view of the thinness and friability of the walls of the gut. When the gut has been emptied in this way, or in the less severe cases without this preliminary, purgatives and frequent injections can be used to advantage. Jalap ½ dr. and calomel 5 grains, or castor oil ½ oz., or syrup of buckthorn have been usually employed. The impaction is usually too firm for the transient action of eserine or pilocarpin. As injections, castor oil, soapsuds, decoctions of flaxseed, mallow or elm bark may be employed being repeated as often as they are expelled and supplemented by the mechanical removal of all solid matters that come within reach. In cases so extensive as to resist the above measures we can resort to laparotomy. The incision can be made close and parallel to the linea alba, the rectum, or floating colon drawn out through the wound, the other intestines being carefully held back by an assistant, the gut is then incised longitudinally and its solid contents removed. The wound is thoroughly cleansed, washed with an antiseptic (mercuric chloride 1:2000), and sutured with catgut, the mucosa being carefully turned in and the muscular and peritoneal coats kept in accurate contact. Finally the abdominal wound is closed by silk sutures. The patient must be placed for a week or ten days on well boiled gruels and the rectum frequently emptied by injections of tepid water. In case the bowel is found to be necrotic, the gangrenous section may be excised and the ends brought together by Murphy’s button, or simply sutured with catgut over a hollow tube of raw potato. INTESTINAL INDIGESTION AND OBSTRUCTION IN BIRDS. Causes: Age, debility, atony, matting of feathers, dry or indigestible food, lack of water, diseased oviducts, sand or gravel, lack of pebbles or power in gizzard. Lesions: masses of egg, uric acid, or fæces in cloaca, implicating colon and cæca. Symptoms: dullness, stupor, vertigo, staggering, erect plumage, trailing wings and tail, bulging anus, covered with matted feathers, impaction felt by finger. Treatment: extract mass, castor oil, laudanum, chalk, bismuth, pepper, demulcents, phenol, exercise, silage, green food, pebbles.