28 TRAITS OF YOUNG CHIMPANZEES 



anything else provided for the purpose. This evidently was 

 partly for warmth, but, as indicated by the use also of any 

 strip of burlap, strings or ropes which happened to be handy, 

 it was in a measure adornment. Chim, on the contrary, gave 

 little attention to articles which might be used to cover or 

 drape about his person. When in bed he apparently pre- 

 ferred not to be covered, and when out of bed he was far too 

 active to keep anything on his person. 



Apart from certain exceptional conditions, both chim- 

 panzees were cleanly in their habits. In the quarters pro- 

 vided for them in Washington, D. C.,^ a simple toilet arrange- 

 ment was installed, consisting of a galvanized iron pan about 

 3 inches deep by 15 by 18 inches. This pan was placed on the 

 floor of the cage in one corner and held by wooden cleats 

 which prevented the animal from displacing it. From the 

 side of the cage it could be withdrawn by the attendant 

 to be emptied and washed. Extending diagonally across this 

 pan from one corner of the surrounding frame to another was 

 a strip of wood 2 inches wide by 1 inch thick, on which the 

 animal could stand. Chim evidently understood the pur- 

 pose of this toilet device from the first. He used it 

 commonly, although not regularly. "Out of sight, out of 

 mind" perhaps accounts for his lapses. Panzee was less 

 reliable, but she also seemed to understand our intent in 

 instaUing the toilet. Altogether the device worked fairly 

 well, and we experienced no unreasonable difficulties in keep- 

 ing the quarters tidy. 



The nest or bed arrangement consisted of a wooden box 

 14 inches deep by 32 by 18 and J inches (inside), in the 



1 For valuable aid in designing and constructing the quarters I 

 am indebted to Messrs. Blackburne, Lanham, and Hilt of the Zoological 

 Park, Washington, D. C. 



