CHAPTER IV 



THE CHIMPANZEE 



Next to man, the chimpanzee occupies the highest 

 plane in the scale of nature. His mental and social 

 traits, together with his physical type, assign him to 

 this place. 



In his distribution, he is confined to Equatorial 

 Africa. His habitat, roughly outlined, is from the 

 fourth parallel north of the equator to the fifth 

 parallel south of it, along the west coast, and extends 

 eastward about half-way across the continent. His 

 range can be defined with more precision, but its 

 exact limits are not quite certain. Its boundary on 

 the north is defined by the Kameroon valley, slightly 

 curving to the north, but its extent eastward is not 

 well known. He does not appear to be found 

 anywhere north of this river, and it is quite certain 

 that the few specimens attributed to the north coast 

 of the Gulf of Guinea do not belong to that territory. 

 On the south, its boundary starts from the coast, at 

 a point near the fifth parallel, curves northward, 

 crossing the Congo near Stanley Pool, pursues a 

 north-east course, to the centre of the Congo State, 

 again curves southward, across the Upper Congo, 



