_Lesions._ These consist mainly in congestion and swelling of the gastric mucosa, which is further covered by a thick layer of mucus. The folds are especially thickened and discolored, and the seat of hemorrhagic extravasations (petechiæ) and exudations in spots and patches. Desquamation of the epithelium may be met with at points and even distinct ulcers. Exudation in the submucous tissue, and petechiæ in the peritoneum are common. The condition may bear a close resemblance to what is seen in rinderpest or malignant catarrh. _Treatment._ The first desideratum is the elimination of the irritant ingesta from the stomach. But for this purpose emetics are useless and we must fall back on laxatives. Again we are met by the consideration that the inflamed stomach will neither readily absorb nor respond to a stimulus. Yet as a rule the viscus is not equally inflamed throughout, and even the affected parts do not necessarily have the whole muscular coat involved and paralyzed. We can therefore hope for a measure of response which once started will deplete and improve the adjacent and more violently affected parts. But irritant and drastic purgatives like croton, podophyllin or gamboge are proscribed as very liable to aggravate the inflammation. Pilocarpin 3 grs. hypodermically may be given or in default of this, 1 lb. each of Glauber and common salt in not less than six quarts of water, free access being allowed to pure water until it shall have operated. Bismuth may also be given as a calmative. Active rubbing of the abdomen will assist in rousing the stomachs to action, and hasten the action of the purgative. If there should be any sign of cerebral disorder, cold water or ice may be applied to the head, and oil of turpentine, followed by a pulp of the best ground mustard may be applied to the epigastrium and right hypochondrium. This may be accompanied and followed by copious enemata, and doses of quinia, gentian or still better nux vomica three times a day. CATARRHAL GASTRITIS IN SWINE. Definition. Causes, irritants, fermented, putrid swill, spoiled vegetables, irritant molluscs or larvæ, hot or cold food, alkalies, indigestible food, specific germs and toxins, parasites. Symptoms: inappetence, restlessness, vomiting, colic, constipation, diarrhœa, fever, stiffness, tender abdomen, arched back, chill, plaintive grunting, drooping tail. Lesions. Treatment: change diet, mucilaginous, milk, protection from saprophytes, change pen, emetic, laxative, calomel, bismuth, cleanliness, washing. _Definition._ Inflammation of the gastric mucosa with mucopurulent discharge.