102 NEW YORK ZOOLOGICAL SOCIETY. 



With the exceptions of the cases of " Sultan " and " Zongo," 

 whose cases although obstinate did in a measure yield tempo- 

 rarily to treatment, the disease progressed steadily. Owing to the 

 nature and extent of the constant drain upon the system, and ex- 

 tremely poor appetite — which made adequate nourishment hard, 

 indeed almost impossible to accomplish — the animals emaciated 

 rapidly. Several changes of treatment were thought advisable, 

 and carefully made, including the free use of salol, xeroform, 

 bismuth sub -nitrate, bismuth sub - gallate, opium, etc. All 

 proving equally ineffectual, we called in consultation Dr. Van 

 der Smissen, who has enjoyed much practice in the diseases of 

 children of this part of the city. It having been thought advis- 

 able, irrigation of the colon of each was frequently and carefully 

 made with sterilized normal salt solution along with the treat- 

 ment already administered, but without appreciable result. The 

 animals soon refused to take nourishment voluntarily, and the 

 stomach rejected administered food such as peptonized milk, etc. 

 Their death ensued within twenty-four hours of each other. 



The post-mortem examinations made by Park Pathologist 

 Harlow Brooks, M.D., at which I was present, were most inter- 

 esting as showing the lesions of the entire colon incidental to 

 the invasion of parasites known to science as Balantidii, a tropical 

 infection which we at the time, and with much reason, thought 

 had been introduced into the Park by the importation of this 

 particular collection of apes. 



The chimpanzee " Zongo " and orang " Sultan " gave tem- 

 porary hope of ultimate success in treatment, and gained in fair 

 measure a healthful state of digestion, which, however, soon 

 broke down, and despite the most solicitous care and treatment, 

 their intestinal discharges again swarmed with the infusoria. 

 Emaciation was rapid and complete, death following despite our 

 efforts, as in the cases above reported. Post-mortem lesions were 

 in all respects identical to former cases. 



The female orang named " Sally," who had been within the 

 Park during the past two years but had been caged at times with 

 the others, first showed emaciation and specific diarrhoea on 

 December 8th. The loss of flesh and prostration was very rapid, 

 the appetite soon failing. As in the other cases, there was 

 marked apathy from the outset. The treatment of quinine bi- 

 sulphate enemata, so extensively used in human medicine in 



