14 



'Journal of Comparative Neurology and Psychology. 



the first ten or fifteen trials Z merely looked on. It was not long, 

 however, before she began to strike the ball when it was rolling. 

 Her interest gradually increased until finally she rolled the ball 

 into the hole of her own accord. 



TABLE XII. 

 Z imitalins Me. 



Date 



I ROLL BALL 

 IN HOLE 



Z ROLLS BALL 

 IN HOLE 



Time 



Jan. 24.... 

 Jan. 25.... 



Jan. 28 



Jan. 28 



Jan. 28 



Jan. 28 



Jan. 28.... 

 Jan. 28.... 

 Jan. 28 ... 



Jan. 28 



Jan. 28 



Jan. 28 



Totals 



24 



30 

 45" 

 15* 

 25" 



31" 

 15" 



15' 



70 



65 



For M the method was the same as that used with Z except that 

 I rolled the ball into the hole five times in succession instead 

 of four. During the latter part of the experiment the method was 

 varied somewhat by giving M a chance at the ball each time after 



TABLE XIII. 

 A/ imitating Me. 



Date 



I ROLL BALL 

 IN HOLE 



Ml 



M ROLLS BALL 

 IN HOLE 



Time 



Jan. 25. 

 Jan. 26. 

 Jan. 28. 

 Jan. 29. 

 Jan. 30. 

 Jan. 31. 

 Feb. I . 

 Feb. 4. . 

 Feb. 5.. 

 Feb. 6.. 

 Feb. 6.. 

 Feb. 7. . 

 Feb. 7. . 

 Feb. 7. . 

 Feb. 7. . 



