4 'Journal of Comparative Neurology and Psychology. 



X and Y were now tested separately. The following table gives 

 the time each was in the box alone. 



Datk. 



Oct. 31. 



Nov. I . 

 Nov. 3 . 



[ Y 



o' 30' 



5' 25' 



o' 30' 



Date X Y 



Oct. 26 20' ac/ 



Oct. 27 20' 20/ 



Oct. 29 30' 30' 



Oct. 30 30/ 30' 



Neither succeeded in getting out. On Nov. 2 I put them into 

 the box together. Y found the knot and opened the door. As 

 soon as X saw Y pulling the knot she took hold of it and pulled. 

 After having been put back they pulled at the knot turn about for 

 a few minutes, and then they gave up. 



Tables I, 2 and 3 show how quickly the cats learned to open 

 the door when they were given an opportunity to imitate. 



In the tables I have given the number of times that a certain act 

 was performed or witnessed by the subjects of the experiment, and 

 the time which the imitator consumed in performing the act. 

 In Table I (Y imitating Z), for example, the second column gives 

 the number of times that Z got out of the box; the third column, 

 the number of times that Y saw Z escape; the fourth column, the 

 number of times that Y got out when given an opportunity to 

 imitate by being left in the box alone, and the fifth column, the 

 time required by Y (the imitator) in escaping. 



TABLE I. 

 Y imitating Z. 



