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 gan- 

 grene 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. Intussiisception 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 tlie 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 Mada- 

 gascar, 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 pi-ofuse diarrhoea, and at the 

 autopsy perforation of the ileum was found, all the ulcers being con- 

 fined to the neighhouihood of the ileo-csecal valve. The second died 

 seven days after its companion, from severe hsemorrhage ; ulceration 

 of the agminate and solitary glands had taken place from the com- 

 mencement of the ileum to within half an irch of the anus. It is 

 very probable that the second Lemur contracted the disease by direct 

 inoculation from its mate for the following reasons : — 



