340 'Journal of Comparative Neurology and Psychology. 



with his nose as No. 6 did. At first he was quite energetic when 

 put back, after having followed No. 6 out, but he soon reached a 

 point where he made little or no effort when put into the cage alone 

 but quietly waited until No. 6 was put in, when he became very 

 active and followed him closelv. 



NO. 5 IMITATING NO. 6. 



No. 5 was first put in by himself for a few minutes. He tried 

 to get out but did not succeed. 



Nov. 14 



Totals 



No. 5 saw No. 6 open the door only three times, yet he saw 

 him several other times before he was entirely through the door, 

 and two of these times he followed him out, getting to the door 

 before it had completely closed. 



NO. 8 IMITATING NO. 6. 



No. 8 was first put in the cage by himself for five minutes. He 

 did not get out. 



No. 8 

 sets out 



Totals 



No. 8 in following No. 6 out of the cage passed through the door 

 while it was held open by the body of No. 6. In two cases, how- 

 ever, only the tail of No. 6 was in the door. 



