Contagious Diseases of Domesticated Animals

to furnish ? second addendum to give the final results of my observations. As the simplest mode of dealing with these supplementary facts I shall refer to them seriatim, beginning with those which are merely complementary of the last report. INFECTION BY COHABITATION. In my last report an instance of this kind was furnished, and a deduction made that the disease was most virulent when at its height, inasmuch as that the exposed pig seemed to resist the contagion from an animal in process of convalescence, but speedily (in twelve days) fell a victim when placed along with a pig in which the malady was actively advancing. In the present report (No. 1) is given the necropsy of the pig infected by such exposure. The characteristics of the disease were sufficiently well marked, for though the bowels showed little more than a catarrhal inflammation, with an excessive secretion of glairy mucus, dirty, greenish-black pigmentation and two small circular blood extravasations, yet the other organs presented distinct swine-plague lesions. Thus, there were the characteristic blotches on the skin, the petechial discolor;i t ions on the heart and in the kidneys, the, deep purple patches on the liver, and above all the pigmentation or deep red congestion of the groups of lymphatic glands and all parte of the body. The significant congestion of the lungs was also present. The only remarkable feature of the case was the excessive bloody engorgement and enlargement of th...