232 



Animal Intelligence 



APPARATUS 



MODEL GIVEN OR ACT 

 PUT THROUGH 



ACT OF No. i 



ACT OF No. 3 



Epsilon 



QQ(e) 



QQ(ff) 



ww 



To stand in front, 

 insert fingers of 

 right hand and 

 press lever down. 



To pull hook down. 



To pull wire loop 

 off nail with right 

 hand. 



To stand on top of 

 box, reach right 

 hand down and 

 pull bar up. 



Inserted arm in gen- 

 eral activity while 

 on top of the box. 



Pulled at the lever 

 and hook in a 

 general attack on 

 the apparatus. 



Pulled outward on 

 the lever which 

 pushed the ba- 

 nana down the 

 chute so hard as 

 to pull it off its 

 pivot. 



Pulled at door until 

 bar worked] out 

 of its catch. 



I have kept the results of the tests of the ' on chair' type 

 separate from the others because they may be tests of a dif- 

 ferent thing and surely are subject to different conditions. 



They were tests of the animals' ability to form the habit of 

 going to a certain place by reason of having been carried 

 there and securing food thereby. I would leave the animal 

 loose in the room, and if he failed in 5 or 10 minutes to go to 

 the place of his own accord, would put him back in his cage; 

 if he did go of his own accord, I would note the time. Then 

 I would take him, carry him to the place, and feed him. 

 After doing this 10 times I would turn him loose again and 

 see whether the idea of being fed in such and such a place was 

 present and active in making him go to the place. In such 

 tests we are absolutely sure that the animal can without any 

 difficulty perform the necessary movements and would in 



