208 Animal Intelligence 



still not have a demonstration that the monkeys habitually 

 did learn by getting percepts and images associated with 

 sense-impressions, by having free ideas of the acts they per- 

 formed ; we should only have proved that they could under 

 certain circumstances. 



The circumstances in these experiments on discrimination 

 were such as to form a most favorable case. The act of 

 going down had been performed in all sorts of different con- 

 nections and was likely to gain representation in ideational 

 life ; the experience ' bit of banana' had again been attended 

 to as a part of very many different associations and so would 

 be likely to develop into a definite idea. 



These results then do not settle the choice between three 

 theories : (i a) that they were due to a general capacity for 

 having ideas, (i b) that they were due to ideas acquired by 

 specially favoring circumstances, (2) that they were due to 

 the common form of association, the association of an im- 

 pulse to an act with a sense-impression rather roughly felt. 



It would be of the utmost interest to duplicate these ex- 

 periments with dogs, cats and other mammals and compare 

 the records. Moreover, since we shall find (i a) barred out 

 by other experiments, it will be of great interest to test the 

 monkeys with some other type of act than discrimination 

 to see if, by giving the animal experience of the act and result 

 involved in many different connections, we can get a rate 

 of speed in the formation of a new association comparable to 

 the rates in some of these cases. 



Of course here, as in our previous section, the differences 

 in the sense-powers of the monkeys from those of the kitten 

 which I have tested with a similar experiment may have 

 caused the difference in behavior. Focalized vision lends 

 itself to delicate associations. Perhaps if one used the sense 

 of smell, or if the dogs and cats could, preserving their same 



