TWELFTH ANNUAL RI-.PORT. 121 



Cage Paralysis. — Aside from the animals destroyed while in 

 quarantine four cases occurred in our primate collection. Two 

 of these were animals that had been in captivity four or five 

 years. All were chloroformed just as soon as it was evident that 

 they were passing into the terminal stage of the affection. A 

 moor macaque, w-hich was badly affected with cage paralysis some 

 two years ago, has entirely recovered, with all signs of muscular 

 atrophy and paresis entirely gone. 



In addition to the administration of phosphates of lime, pure 

 olive oil is now being given in some cases, apparently with very 

 beneficial results. The oil is given in very small quantities at 

 first, generally mixed ^yith egg and milk, but it is found that 

 the animals soon acquire a taste for the oil, after which it can 

 be given in larger quantities. When given in small quantities 

 the oil is easily digested and assimilated, and in a few w'eeks the 

 animals take on flesh. One of the first effects noted from the oil 

 is the improvement in the general appearance. The skin is less 

 dry, and the hair takes on a luster which has been lacking. 



Meat-Poisoning. — "Princeton," our youngest tiger, died of 

 meat-poisoning during the past summer. He had not exhibited 

 any symptoms whatever, but on the keeper's inspection in the 

 morning he was found dead in his sleeping-box. 



On examination, the stomach and small intestines were found 

 to contain a large amount of half-digested, foul-smelling flesh. 

 This meat was chocolate-colored and covered with mucus. The 

 mucous membranes, especially those of the stomach, were swollen 

 and congested. The muscular tissue of the heart w^as very soft 

 and flabby, the blood imperfectly coagulated and granular in ap- 

 pearance, the liver much enlarged and showing signs of rapid 

 decomposition. The spleen was greatly swollen and infiltrated 

 with hemorrhagic areas. The lymph nodes of the mesentery 

 were also enlarged. 



The phenomena of meat-poisoning are essentially those of 

 septic gastro-enteritis, the symptoms being vomiting, diarrhea 

 and great prostration, quickly followed by collapse. Strange as 

 it may seem, illness sometimes results from feeding meat ap- 

 parently perfectly normal in appearance and taste. As a poison- 

 ous agent consists partly of bacteria and partly of ptomaines, 

 the poison is only weakened by cooking the meat, but is not 

 entirely removed by that process. Owing to the violence of 

 the symptoms the trouble may be easily mistaken for mineral 

 poisoning. 



Aneurism and Thrombus li'itJi Rupture of the Left Internal 



