216 Animal Intelligence 



tuition, i.e. he on the floor by me, the box in front. In this 

 trial and in a five-minute trial inside his cage he failed to 

 open the door or to differ in any essential respect from his 

 behavior before tuition. 



No. i saw me do 9 different acts and No. 3, 7, which they 

 had failed of themselves to do. 1 After from i to 40 chances 

 to imitate me they still failed to operate at all n of these 

 mechanisms. In the case of 3 out of 5 that were worked 

 the act was not the same as that taught. No. i, who saw 

 me pull a nail out by taking the end of it and pulling the nail 

 away from the box, himself put his hand round the nail and 

 wriggled it out by pulling his hand back and forth. No. 3, 

 who saw me pull a bolt up with my fingers, succeeded by 

 jerking and yanking the door until he shook the bolt up. 

 He saw me pull a hook out of an eye, but he succeeded by 

 pulling at a bar to which it was attached. In the case of 

 one of the two remaining acts (No. 3 with nail chute) the act 

 was done once and never again, though ample opportunity 

 was given and tuition continued. It could, therefore, 

 hardly have been due to an idea instilled by the tuition. 

 The remaining case, No. i, with loop, must, I think, be at- 

 tributed to accident, especially since No. 3 failed to profit 



1 The acts and the number of chances to see me do each and the results 

 were as follows; details can be found on the table on page 226. F = failed 

 after tuition. 



No. i. MM 21 F No. 3. Theta 25 did in 3.00. 



Theta 5 F QQ 40 F 



QQ 10 F Gamma 30 F 



RR 4 F 



W 9 did in .22 Epsilon 25 F 



Delta 15 F QQ (ff) S F 



Epsilon 40 F QQ (c) 20 F, did in 1.30, F, 5 F, 



5F 



QQ(f) 15 F QQe 5 F, did in 2.00 



QQ (c) i did in 2.20 



