Under this designation, Dr. A. H. Smith, of New York, describes a method of rectal alimentation with defibrinated blood, which seems in a high degree useful. He ascertained that "three to four ounces of blood administered at night would be so completely absorbed in the course of eight or ten hours that no trace of it could be found in the morning evacuation." To retain the blood fluid, it must be defibrinated at the moment it is drawn, which may be done by stirring it with a bundle of twigs as it flows away. In chronic cases three to six ounces may be thrown into the rectum morning and evening; in acute cases every two to three hours. It may be used cold, but it is better to raise it to the temperature of the rectum. Constipation usually results, and in some instances the body exhales a rather fetid odor, and the stools are offensive. Another objection may be urged against this method: sometimes a foul-smelling and tenacious material coats the surface of the mucous membrane and prevents absorption. For this reason, and to promote a favorable disposition of the blood, the bowel should be irrigated with water once or twice a week to clear away any retained or adherent matters. If the rectum is irritable, a little laudanum may be added to each blood-enema.