This disease very rarely occurs in the horse, although quacks frequently claim its presence; but that is more to cover up ignorance than from any knowledge of the disease. In order to prove their diagnosis correct they often pinch the animal on the loins to make him flinch, which most horses will do at any time.

Symptoms. - The symptoms somewhat resemble those of colic, except there is fever. There will be thirst, arching of the back, stiffness, and tenderness across the loins; violent straining to urinate, but only passing a few drops and that highly colored, and may be bloody

Treatment. - A quart of raw linseed oil and two ounces of laudanum should be given at once, and if the pain continues the laudanum may be repeated in two hours in half a pint of oil. A mustard plaster should be put over the loins at once, and injections of very warm water should be given freely in the rectum once every hour till the pain is relieved. When the animal begins to improve give soft food and add a teaspoonful of bicarbonate of soda to the feed three times a day.