Definition. Colicy pains from spasm, enteralgia, tympanitic indigestion, overloading of bowels, impaction, calculi, concretions, sand, foreign bodies, intestinal and arterial parasites, irritants, enteritis, catarrhal, bacteridian, protozoan, chemicals, strangulation, adhesion, volvulus, invagination, hernia, trauma of stomach or intestine, peritonitis, pleuritis, metritis, ovaritis, hepatitis, biliary calculus, nephritis, urinary calculus, neoplasms, lead poisoning. Causes of enteralgia or spasm, idiosyncrasy, nervousness, cold, wet, high condition, debility, cold, rain, dew, perspiration, fatigue, indigestion, rheumatism. Symptoms: horse—sudden attack, paws, kicks, anxious look at flank, crouches, goes down, rolls, sits, rises, shakes himself, feeds, repeats at intervals, rumbling, defecations. Complications. Diagnosis, symptoms violent, transient, completely intermittent, no fever, no tenderness; from acute indigestion by absence of faulty feed, loaded or tympanitic abdomen, crepitation, continuous pain, and of careful decubitus; from constipation by complete intermissions and freer passages; from intestinal worms by absence of fur on anus, of rubbed rump, and of parasites in stools; from verminous thrombosis by complete intermissions and absence of prostration, cold sweats and of bloody stools; from enteritis and other inflammations by absence of fever; from intestinal anthrax by the intermissions, the absence of brownish mucosa, and perhaps of anthrax from the district; from hepatitis by absence of icterus, tender hypochondrium, and fever; from kidney affections by lack of stiff, straddling gait, tender loins, stretching; from pleurisy by absence of catching breathing, tender intercostals, and friction sound; ruminants—similar symptoms except sitting up or rolling; swine—sudden starting with grunt or scream, vomiting, etc.; Carnivora—frequent moving, yelps, snapping, straining, looking at flank. Treatment: solipeds, morphia subcutem, anodynes, laxative, friction, walking, enemata, chloral hydrate: ruminants, walking, enemata, morphia, laxative; swine, morphia, laxative, antispasmodics, injections, derivatives; dog,—purgative, injections, chloral hydrate, ether, olive oil. The term colic is loosely applied to all abdominal pains from whatever cause they may arise. It is thus allowed to embrace all diseases of the abdomen. In its more restricted sense in which it will here be considered it may be held to indicate =abdominal pain without inflammation or any structural lesion=. It may however be well to note the most common causes of abdominal pain so that the distinction may be more definitely reached by a process of exclusion.