The Mental Life of the Monkeys 233 



case the proper stimulus to set them off appeared, if, for 

 instance, a bit of food on one of the places to which he was to 

 go caught his eye. In so far forth the tests were favorable 

 cases for learning. On the other hand, the situation asso- 

 ciated with getting food may have been in these cases not 

 the mere ' being on box ' but the whole previous experience 

 ' being carried while clinging and being put or let jump on a 

 box.' In this respect the tests may have been less favor- 

 able than the acts where getting food was always the direct 

 sequent of the act of going into the box. 

 The experiments were : 



A. Carrying the animal and putting him on a chair. 



B . Carrying the animal and putting him on a pile of boxes. 



C. Carrying the animal and putting him on the top of a 

 sewing machine. 



D. Carrying the animal and putting him on the middle of 

 a board 6 feet long, stretched horizontally across the room, 

 3 feet from the floor. 



E. Carrying the animal and putting him on the side of the 

 cage, head down. 



The results are given in Table 13. 



The size of the room in which I worked and other practical 

 difficulties prevented me from extending these experiments. 

 As they stand, no stable judgments can be inferred from 

 them. It should be noted that in the successful cases there 

 were no other signs of the presence of the idea ' food when 

 there ' than the mere going to a certain place. The animal 

 did not wait at the place more than a second or two, did not 

 look at me or show any signs of expecting anything. 



Although, as I noted in the early part of this monograph, 

 there were occasionally phenomena in the general behavior 

 of the monkeys which of themselves impressed one as being 

 suggestive of an ideational life, the general run of their 



