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Show 582 MR. J. B. SUTTON ON THE DISEASES OF MONKEYS. [Dec. 4, cases were amongst the Lemurs, associated in one with cystitis. The prevalence of lobular pneumonia results from the frequency of bronchitis and rickets. 4. Empyema. Two cases. 5. Abscess of lung burst into a bronchus filled the trachea, and thus suffocated a Baboon. 6. (Edema of lung killed a Squirrel-Monkey. 7. A not uncommon mode of death in young animals is alveolar abscess leading to ulceration and sloughing of the gums, the purulent discharges are swallowed, some getting inspired (possibly during sleep) and septic pneumonia established, sometimes leading to gangrene of the lung. This proved fatal in a young Chimpanzee. 8. Scrofula was well marked in three cases-a Baboon with caseating glands in the neck, a Capuchin with suppurating glands in the axilla, and lastly a Rhesus Monkey with a caseating mass in the dorsal region of the thorax associated with spinal caries, paraplegia, and meningitis, which gradually extended to the cranium and caused death. 9. Intussusception of the jejunum killed a very fine Lemur. I find that cases of intussusception occur among animals after a sudden chill. Garrod noticed this fact with regard to a Kangaroo, an Emu, and a Paradoxure, and reported the same in the Society's 'Proceedings' 1873. He says:-"During the first week of this month (February) the cold weather coming on suddenly seems to have caused the death of three animals in the Gardens, in all of which on post-mortem examination it was found that the lesion was the result of excessive and abnormal movement in the abdominal viscera." The telescoped condition of the small intestines is very common among animals, and probably occurs during the agony : this is easily distinguished from true invagination of the bowel. Whether a sudden chill may cause an invagination of intestine in man is a subject for inquiry. 10. Leucocythemia was met with in a Lemur, the spleen of the animal having become enlarged to fifty times its normal bulk. The proportion of leucocytes in the blood was one to eighty red corpuscles. This is interesting, inasmuch as these creatures come from Madagascar, an island famous for ague. Lemurs are very liable to cataract. The reason why is not very obvious. One Lemur died from purulent pericarditis due to perforation of the pericardium by a caseating lymphatic gland. 11. Typhoid fever proved fatal in four cases, three Lemurs and one Monkey. Two of the Lemurs lived in the same cage. The animal first affected suffered from profuse diarrhoea, and at the autopsy perforation of the ileum was found, all the ulcers being confined to the neighbourhood of the ileo-caecal valve. The second died seven days after its companion, from severe haemorrhage ; ulceration of the agminate and solitary glands had taken place from the commencement of the ileum to within half an inch of the anus. It is very probable that the second Lemur contracted the disease by direct inoculation from its mate for the following reasons :- |