THE DEVELOPMENT OF A YOUNG MONKEY 125 



piece of paper was crackled he looked back and forth from her 

 to the observer, and finally began to cry. 4 



August 14. Attempted to test his sense of smell today. When 

 he was offered anything through the screen he reached for it 

 with one hand, then bent forward and took it in his mouth. He 

 some times seemed to smell at it, but that this is not the case 

 was shown by his biting at a cloth wet with ammonia. Only 

 after two attempts to bite the cloth did he show signs of dis- 

 pleasure at the odor. He drew back also from a cloth wet with 

 chloroform, shaking his head from side to side and wrinkling 

 his nose. He seemed indifferent to the odor of oil of cloves 

 or acetic acid. Dolly now releases him on the shelf but does 

 not leave him alone there. She watches him closely to see that 

 he does not fall off. 



August 16. Sixth week. 



He is beginning to recognize food, apparently, for his biting 

 is limited almost entirely to scraps of food scattered about the 

 cage. He chews and swallows bread. 



August 18. His interest in food is increased and he spends 

 much of the time nibbling at scraps. His interest in our move- 

 ments is decreasing, and we cannot coax him to the screen as 

 readily as before. 



He climbed up the screen and, holding with his hands, began 

 to dance against it with his feet (the shaking reaction shown by 

 Jim). He kept his eyes fixed upon us all the time and stopped 

 occasionally to peer through the wire, as though expecting some 

 response to his action. 



The water bucket offers a good place for climbing, and he 

 frequently scrambles over it, turning and twisting about, hang- 

 ing upside down, and reaching accurately for the wires and 

 edge of the bucket. 



When Dolly slaps him he shuts his eyes tightly. 



August iq. Dolly was sitting on the edge^ of the bucket and 

 he was hanging to the screen opposite her. Letting go of the 



4 This is an action that has been frequently noted in the adults. When Dolly 

 becomes enraged at some act of the observer, she does not herself attack but turns 

 to Jim, the large male, and induces him to take the offensive. The behavior of 

 the baby resembled this action of hers very closely. 



