124 K. S. LASHLEY AND JOHN B. WATSON 



about the edge and sides of the water bucket. He does not seem 

 to mind when his feet or tail get in the water. He reaches out, 

 grasps and bites his food. His interest in the food is quite 

 independent of Dolly's activities. He does not imitate her in 

 eating or in other movements. She has never offered him food, 

 — indeed she usually snatches it away from him and boxes 

 him besides. 



His scratching reaction is complete today. The hind foot is 

 moved quickly and accurately. The hand is used for scratch- 

 ing for the first time. The movements are exactly those of the 

 adults. The wrist is held stiff and bent slightly inward, the 

 fingers crooked. Even the adult's far-away look is assumed 

 during the process. 



August 8 and p. Fifth week. 



Cold rain. The baby was reluctant to leave Dolly's arms and 

 would not venture far from her. He climbed up on the netting 

 and some cake crumbs were placed in his mouth. He sucked 

 at them but did not swallow. 



August 10. He has cut lower incisors; tried to test his taste 

 sensations today. He took sugar and acid solutions with appar- 

 ent relish, coming back for more, but he~ turned away when salt 

 was given. He ate bread and milk with apparent liking. When 

 the observer quit feeding him he climbed up on the screen and, 

 looking at him intently, he began to shake the screen, or rather, 

 to bounce back and forth against it, since his weight was not 

 sufficient to move the wire. He struck at Dolly when she 

 pulled him down from the screen and was severely punished for 

 it. She does not allow him to make threatening movements 

 towards her, and she frequently bites him when he frowns at her. 



August 12. Today baby apposed the thumb and fingers in 

 grasping (first time actually observed). He could not pick up 

 a grain of corn in this way. He frequently jumps off the window 

 ledge and sometimes jumps into the air when running on the 

 ground. He pounces upon various objects in the cage, but 

 rarely picks them up, usually bending down and applying his 

 mouth to them. He frowns very darkly when Dolly punishes 

 him. When he is frightened he turns directly to her. When a 



