MENTAL LIFE OF APES AXD MONKEYS 265 



could climb upon it the box was removed. At first Jimmy 

 did not try to move the box back, but began to explore it and 

 opened the lid upon which he climbed and reached the food. 

 The next time he tried to pull the table toward him. 

 After a number of different manceuvers to get the food he 

 learned to drag the box or a chair toward the table and 

 by this means reach the object he was seeking. 



In another experiment a box was placed between the 

 fastening of his chain and a piece of potato which was just 

 out of reach, but which could be reached if the chain did 



FIG. 16. "Jimmy" using a box in order to reach food on the table. 

 (After Hobhouse). 



not pass around the box. Jimmy soon came back to the 

 box, moved it out of the way and got his potato. He re- 

 peated the performance two more times without hesitation. 

 When his chain was shortened by a heavy fender being 

 placed over it he would come back and lift off the obstacle. 

 He recognized, apparently, that the box and the fender pre- 

 vented him from going as far as he otherwise might. 



Similar adjustment of means to ends was shown by the 

 monkey kept by Miss Romanes, which she describes as 

 follows: "His chain is fastened to the marble slab of a 

 washhandstand, placed on the floor against the wall. It is 

 too heavy for him to pull along by his chain without hurting 

 himself, so when he desires to do any mischief which is 



