Experimental Study of Associative Processes 93 
jumping and pawing to hit this cord, and were then given a 
chance to learn by seeing 1 do so, escape, and, of course, he 
fed. x1 always jumped in the same way, biting the cord at 
the same place, namely, where a loose end from a knot in it 
hung down 4 or 5 inches. 2 and 3 would either be tied up 
in the pen or left in a pen at one side. They had a perfect 
chance to see 1 perform his successful act. After every 
twenty or thirty performances by 1, 2 and 3 would be put in 
alone. It should be remembered that here, as also in the 
previous experiment and all others, the imitators certainly 
wanted to get out when thus left in alone. They struggled 
and jumped and pawed and bit, but they never jumped at 
the cord. Their records follow: — 
TABLE 6 (b) 
Doc 2 Immratinc Doc 1 
Times Times Times Time 2 was 
1 did 2 saw Doubtful in alone 
30 9 II 10.00 F 
After 1 Hour 30 10 9 10.00 F 
After 48 Hours 25 8 8 
After x Hour Io 3 4 g.co F! 
After 24 Hours 30 8° 12 15.00 F 
After xz Hour 30 9 12 15.00 F 
After 48 Hours 20 7 6 10.00 F 
20 8 7 
After 48 Hours 30 6 8 15.00 F 
After 24 Hours 15 2 4 10,00 F 
Total times surely and possibly seen, - 70 81 
1 The back of the pen adjoined the elevator shaft, being separated from it 
by a partition 33 inches high. No. 2 heard the elevator coming up and put 
his paws up on the top of this partition so as to look over. In so doing he 
knocked the fastening of the cord at that end and opened the door. He 
did not turn to come out, and I shut the door again. 
