The _post mortem_ lesions are similar to those of the horse. The cut surface of the hepatized lung, however, is divided into irregular red spaces by intersecting yellow lines—hence the name of _marbled lung_, from a supposed resemblance to that stone. The red spaces represent the pulmonary lobules and the whitish lines the surrounding areolar tissue which being especially abundant in ruminants and pigs stands out prominently when infiltrated with the yellowish exudation. There is then nothing specific in this appearance as has been erroneously supposed, it is merely the result of the different conformation of the lung in these animals and is always seen in the hepatized lung unless when from extravasation of blood into its substance the redness is rendered uniform. The amount of exudate into the interlobular tissue is, however, never so great as in lung plague. The greater frequency of suppuration in the lung of the ox, as well as the greater tendency to tubercular deposit in prolonged cases are additional features in the diseased lungs. _Treatment._ Blood-letting should be employed only with precautions, as in the horse. A saline laxative (1 lb. Epsom salts and ½ lb. molasses) may be used with advantage and safety early in the disease though in advanced stages it may sometimes prove dangerous from the tendency to diarrhœa. If constipation appears at a late stage injections of warm water and a mild laxative (6 ounces sulphate of soda) only, should be given. The purgative may be followed by the same neutral salts and in the same doses as for the horse. Counterirritants are of equal value. A mustard poultice may be kept on for several hours, or a mixture in equal parts of oil of turpentine, ammonia, and olive oil may be actively rubbed over both sides of the chest and repeated daily until tender. In Denmark a prompt and efficient blister is made with 1 part of Croton oil and 10 parts each of sulphuric ether and spirits of wine. This is rubbed actively over the chest and washed off as soon as a sufficient effect has been produced. It must be carefully watched to prevent blemishing. In the low types of the disease and during convalescence stimulants and tonics are to be employed as recommended for the horse. CHRONIC PNEUMONIA. Gellé describes a chronic form of this disease in cows. For about a month the patient became increasingly emaciated, there was a frequent, dry, weak cough, lifting of the flanks, and expiration double and accompanied by a moan. All these symptoms were aggravated by gentle exercise. Percussion detected dullness at the lower part of the lung and auscultation a distinct crepitating râle. The pulse was weak and rapid, the mucous membranes red and tumid, skin dry, ears and horns cold, appetite small and capricious, rumination rare, excrements soft, and milk almost dried up.