MAMMALIA. 225 



inhabited the high trees on the banks of the stream. 

 The flocks seen were small, not exceeding twenty to 

 thirty indi^dduals. I had but few opportunities of ob- 

 serving their habits, but they appeared to differ but 

 little from those of Macacus or Ifiuus, except that Cerco- 

 pithecus is a quieter animal and less mischievous. In 

 captivity they are well known as excessively docile and 

 good-tempered, and fairly intelligent.^ 



The following are the dimensions of a full-grown 

 female taken from a freshly-killed specimen. The males 

 are larger.^ 



ft. in. 



Length from upper Kp to brow If 



„ brow to nape over the head 3j 



„ nape to rump 1 li 



of the tail, 204 in.; hair beyond end, 1^ in. . . 1 10 



from shoulder to elbow 4^ 



„ elbow to wrist 4^ 



1 It is the commonest of mistakes amongst superficial observers, and even 

 amongst naturalists, to confound docility and intelligence in animals, and to 

 measure their intellectual powers by the facility with which they can be 

 taught. Hence the very common but, as it appears to me, very incorrect 

 notion, that monkeys are of inferior intelligence to such animals as dogs or 

 elephants. In reality they are less docile, less willing to learn, and less 

 adapted to captivity ; moreover, being of but little use to man, far less 

 trouble has been taken in studying their habits. Thus, while dog- and 

 elephant-breaking engage aU the time and mental resources of particular 

 classes of men, the instruction of monkeys is left to the unaided efforts of 

 amateurs and organ-grinders. The negro race amongst men appears to be far 

 better adapted for slavery than most savage races, being more docile in a state 

 of captivity ; but it is scarcely proved to be more intelligent on that account. 

 The same reasoning will doubtless apply to animals. I have often seen dogs 

 and monkeys kept together, and in every instance it has appeared to me that 

 the monkey ruled the dog, and that the dog feared the monkey, although the 

 canine was the more powerful animal ; and I can only account for this by the 

 superior intelligence of the monkey. 



AU measurements are in English feet and inches. 



