The _diagnosis_ between this affection and hog cholera on the one hand and swine plague on the other is not always easy, but it occurs in herds where no introduction of infection can be shown, there is always the evidence of a foul or unwholesome food, drink or environment, and the history of a number having been attacked at once and not one by one at varying intervals, as in infection, the disease does not spread to neighboring herds kept in better conditions, and there is an absence of the specific germ of hog cholera, motile, ærobic, non-liquefying, asporogenous, gas producing with glucose and fatal to guinea-pigs; or of that of swine plague, non-motile, ærobic, non-liquefying, asporogenous, not gas producing and not fatal to guinea-pigs, but fatal to rabbits. _Treatment._ If the bowels are costive give castor oil 2 ounces, with great care to avoid choking, or shake 15 to 30 grains of calomel on the tongue and give flaxseed tea, or solution of slippery elm or gum which the animal will usually drink to slake its thirst. Or well boiled gruels may be substituted. Injections of soapsuds or Glauber salts with salicylate of soda should be added until the bowels respond, after which the salicylate alone may be given by both mouth and anus, or it may be replaced by one of the other non-poisonous antiseptics. Oil of turpentine alone or with ammonia may be applied on the abdomen and covered up until the skin is red and angry. When appetite returns, gruels, linseed tea, boiled milk and other easily digested food may be given for some days until the stomach reacquires tone, when the patient may be slowly returned to its accustomed diet. If the disease can be traced to alkaline washing powders, these should be first neutralized by vinegar, after which laudanum, antiseptics and mucilaginous gruels will be in order. CATARRHAL ENTERITIS IN DOGS. Causes: faulty feeding, close confinement, youth, distemper, over-exertion, meat diet, chills when heated and fatigued, ferments, bacteria, debility, ill health. Lesions: congested, softened, ulcerated, thickened mucosa, mucopurulent exudate, swollen intestinal and mesenteric glands, hyperplasia, polypi, follicular degeneration. Symptoms: dullness, segregation, inappetence, fever, arched back, abdominal rumbling, tenderness, retraction, constipation, diarrhœa, colics, vomiting, tenesmus, swollen red excoriated anus, icterus, weakness, debility, paralysis, if chronic, unthrifty skin, with eruptions, pallor, foul breath, tongue and gums, emaciation. Course: may recover in vigorous, or run down and die in old, young, weak, debilitated or ill. Relapses. Treatment: dietetic, laxative, in icteric, calomel, manna, enemata, warm bath, synapism, antiseptics, bismuth, sodium salicylate, in diarrhœa, bitters, astringent antiseptic tonics. Demulcents.