218 Animal Intelligence 
formance or in the object attacked, though my manner was 
different from his. 
(d) No. 3 had the following record in box Delta: — 
2.00 (pushed with head) 
3.20 (pushed with head) 
30 F 
10 F Lr 
10 F 
2.10 (pulled wire and door). 
I showed him 20 times by pushing the bar to the right with 
my finger. He succeeded in 8.00and 8.00 by pulling the 
wire and the door. No change in object attacked. 
(e) No. 2 had failed twice in 5 with chute QQ (ff) (chute 
string wire) and succeeded once in 2.00 by a strong pull on 
the wire itself, not the loop. I showed him 5 times, pulling 
the loop off the nail. He then failed in 5. There was no 
prangen in the objects attacked. 
| These records show no signs of any influence of the tuition 
that are not more probably signs of something else. We 
cannot attribute the rapid decrease in time taken in (5) to 
the tuition until we know the time-curve for the same 
process without tuition. | 
(The systematic experiments designed to detect the pres- 
ence of ability to learn ion human beings are thus practi- 
cally unanimous against it. So, too, was the general behavior 
of the monkeys,\ though Te do not consider the failure of the 
animals to imitate common human acts as of much impor- 
tance save as a rebuke to the story-tellers and casual ob- 
servers., The following facts are samples: The door of No. 
r’s cage was closed by an iron hoop with a slit in it through 
which a staple passed, the door being held by a stick of wood 
thrust through the staple. No. 1 saw me open the door of 
