The Mental Life of the Monkeys 199 



Left Hand a 



Me. Yesc, 



ID 



4 Front d 



front f 



back fa. 



= 8 



-8 



BE EJ 



c 



* 



ii 



Kitten's record 



FIG. 30. 



EC ID D C 



-ut. 



Xf 



Do q, 



