At a more advanced stage the mucous membrane clearly is inflamed, its surface is covered with a fibrous exudate, and the glandular and epithelial cells proliferate, assume the embryonic form, and produce the new tissue which one recognises under the form of false membranes. The false membranes are generally but slightly adherent, and are readily expelled. In other cases, however, they adhere firmly, and when detached by the friction caused by movement of semi-digested food through the bowel, produce rupture of capillary vessels; this explains the presence of blood streaks in the fæces. =The diagnosis= is relatively easy, especially at the onset, on account of the special character of the fæces and the sensitiveness of the right flank. =The prognosis= is seldom grave. If the enteritis is taken at the beginning, recovery is usual; but if the animal has been ill for eight or ten days and is exhausted, and if fever and diarrhœa are intense, the prognosis should be guarded. =The treatment= is that of all acute inflammatory diseases. Mustard plasters may be applied to the chest and abdomen and left in position for some hours, or may be repeated. Some practitioners prefer hot blankets or dry friction, or, again, rubbing with essence of turpentine, but this substance should be spread over large surfaces, in order to prevent injury to the skin. Bleeding is only justifiable in plethoric animals, and should never be exhaustive. To relieve the digestive symptoms purgatives are at first given, even though diarrhœa is marked from the onset; for purgatives still constitute the best intestinal antiseptics, because they get rid of the intestinal contents and microbes. The diet should be carefully selected, and may consist of gruel, mucilaginous materials, linseed tea, cooked roots, etc. Of drugs, sulphate of sodium in doses of 10 to 15 ounces is probably the best. It can gradually be replaced by 2 to 3 drachm doses of bicarbonate of soda or of ordinary salt per day. Laudanum, camphor, and bismuth relieve persistent colic and diarrhœa. Pilocarpine, veratrine and eserine, though recommended by some authors, present no advantage in our opinion. The first two of these substances certainly cause purgation, but the action is quite temporary. The last induces violent contraction of the striped muscular tissue, and may produce grave lesions or invagination when the bowel is diseased, thickened or infiltrated. HÆMORRHAGIC ENTERITIS. This form of enteritis derives its name from the dominant symptom, which consists in the passage of unaltered or clotted blood in the fæces. In the former case the blood is bright in colour, as if it came directly from an open vessel. In the second it is coagulated, and assumes the form of fibrinous clots, which seem to result from the superposition, in the intestinal tract of their constituent elements, viz., serum, blood corpuscles, and fibrin.