MONKEYS GENERAL INTELLIGENCE. 483 



their offspring by the tail with one hand, correct them 

 severely with the other. 



We have already seen that dogs and cats display the 

 idea of maintaining discipline among their progeny. 



According to Houzeau the sacred monkey of India 

 ( Semnopithecus entellus) is very clever in catching snakes, 

 and in the case of poisonous species destroy the fangs by 

 breaking them against stones. 1 



Of the fact that monkeys act in co-operation, many 

 proofs might be given, but one will suffice. 



Lieutenant Schipp, in his Memoirs, says : 



A Cape baboon, having taken off some clothes from the 

 barracks, I formed a party to recover them. With twenty men 

 I made a circuit to cut them off from the caverns, to which 

 they always fled for shelter. They observed my movements, 

 and detaching about fifty to guard the entrance, the others kept 

 their post. We could see them collecting large stones and 

 other missiles. One old grey-headed one, who had often paid 

 us a visit at the barracks, was seen distributing his orders, as 

 if a general. We rushed on to the attack, when, at a scream 

 from him, they rolled down enormous stones on us, so that we 

 were forced to give up the contest. 



I shall here bring to a close my selections from the 

 literature of monkey psychology, because I wish to devote 

 a good deal of space to detailing a number of observations 

 which have not yet been published. Thinking it desirable 

 for the purposes of this work that an intelligent monkey 

 should be subjected to close observation for some length 

 of time, I applied to Mr. Sclater for the loan of one from 

 the collection of the Zoological Society. He kindly con- 

 sented to my proposal, and I selected a specimen of Cebus 

 fatuellus, which appeared to me to be the most intelligent 

 monkey in the collection. Not having facilities for keep- 

 ing the animal in my own house, I consigned him to the 

 charge of my sister (who lives close by), with the request 

 that she should carefully note all points of interest con- 

 nected with his intelligence. Therefore, from the day 

 of his arrival till that of his departure she kept a diary, 



Loc. cit., vol. i., p. 305. 



