+----------+---------+ | No. 1. | No. 6. | +==========+=========+ | 13.00 F | 17.50 | | 9.30 | 3.30 | | 1.40 | 9.00 | | .50 | 2.10 | | 15.00 | 1.45 | | 6.00 F | 1.55 | +==========+ | | 14.00 | 13.00 | | +=========+ | 20.00 F | 5.00 | | 4.30 | 2.30 | | 20.00 F | 15.00 | | 20.00 F | 10.00 F | | +=========+ | 15.00 F | 5.00 | +==========+ | | 60.00 F | 15.00 F | | +=========+ | | 10.00 F | | +=========+ | | 10.00 F | +----------+---------+ It should be noted that, although cats 3 and 4 had had some experience in getting out of boxes by clawing at loops and turning buttons, they had never had anything at all like a thumb latch to claw at, nor had they ever seen the door opened by its use, nor did they even have any experience of the fact that the part of the box where the thumb piece was was the door. And we may insert here, what will be stated more fully later, that there was displayed no observation of the surroundings or deliberation upon them. It was just a mad scramble to get out. Three dogs (1, 2 and 3) were given a chance to liberate themselves from this same box. 2 and 3, who were rather inactive, failed to even push the thumb piece down. No. 1, who was very active, did push it down at the same time that she happened to be pushing against the door. She repeated this and formed the association as shown in the curve on page 60. She had had experience only of escaping by pulling a loop of string. Out of 6 cats who were put in the box whose door opened by a button, not one failed, in the course of its impulsive activity, to push the button around. Sometimes it was clawed to one side from below; sometimes vigorous pressure on the top turned it around; sometimes it was pushed up by the nose. No cat who was given repeated trials failed to form a perfect association between the sight of the interior of that box and the proper movements. Some of these cats had been in other boxes where pulling a loop of string liberated them, 3 and 4 had had considerable experience with the boxes and probably had acquired a general tendency to claw at loose objects. 10, 11 and 12 had never been in _any box_ before. The curves are on pages 41 and 43.