126 K. S. LASHLEY AND JOHN B. WATSON 



screen with his hands, he turned and sprang across the bucket, 

 striking against her breast and catching at her shoulders. His 

 hind feet dropped into the water, but Dolly caught him and 

 drew him up into position. 



August 20. I pinched his toes when he had climbed up on 

 the screen. He scrambled away and when I quit he gave a 

 slight shaking reaction, dancing up and down against the screen. 



August 21. Dolly left him alone on the shelf while she came 

 down to eat. He began to cry as soon as she had left him, but 

 made no attempt to get down. After a few moments Dolly 

 climbed back to the shelf and carried him down. 



His grasping is now almost wholly with the thumb apposed, 

 and he is able to pick up small objects such as broken grains 

 of corn. 



August 26. Seventh week. 



Baby is beginning to notice his own body. Up till now he 

 has occasionally caught hold of his feet, but has never looked 

 at them while holding them. Today he caught hold of his 

 toes and looked at them carefully, spreading them apart with 

 his fingers. He caught the skin of his breast, spreading it out, 

 examining it for a long time. Other parts of his body were also 

 explored. He picks at Dolly's body too, especially at her right 

 nipple and at her chin. 



When we took the camera into the cage he was quite un- 

 afraid and persisted in coming close after the camera was 

 focused. 



I dropped a bit of bread through the screen to him. He lost 

 sight of it and commenced to scratch around as though looking 

 for it. However, as he has never been attracted by food when 

 it fell near him, it is possible that this activity may not have 

 been related to the sight of the bread. 



August 2j. Baby is jumping today to a much greater extent 

 than usual. He rams and springs up into the window ledge. 

 He also leaps against the water bucket and springs up and 

 catches its top (about 18" in height). The movements involved 

 here are not different from those in his earlier play activities, 

 but the energy expended is now sufficient to lift him from the 

 ground. From general observations I had gained the idea that 



