It was occasionally noted that the disintegration of a definite method and the disappearance of the tendency on which it depended occurred rather suddenly. Frequently it happened that having used an inadequate method fairly persistently on a given day, the animal would on the following day exhibit a wholly different method. Even over night a new method might develop. In the monkeys, although there was occasionally something comparable with this, it was by no means so evident. TABLE 9 Results for Orang utan in Problem 2 ========+===========+==============+==============+==============+==============+==============+==============+==============+==============+==============+==============+===+===+===+===+======== | No. | S.1 | S.2 | S.3 | S.4 | S.5 | S.6 | S.7 | S.8 | S.9 | S.10 | | | | | Ratio Date | of | | | | | | | | 1.2.3.4.5 | | | R | W | R | W | of | trials | 7.8.9 | 1.2.3.4 | 2.3.4.5.6.7 | 1.2.3.4.5.6 | 4.5.6.7.8 | 1.2.3 | 2.3.4.5 | 6.7.8.9 | 1.2.3.4 | 3.4.5.6.7.8 | | | | | R to W --------+-----------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+---+---+---+---+-------- | | | | | | | | | | | | | | | | May | | {7.7.7.7 | | | | | | | | | | | | | | 17 | 1- 10 | {7.7.7.7 | 1.1.3 | 2.4.6 | 2.3.4.5 | 4.5.7 | 3.2 | 2.3.4 | {2.3.4.5 | 1.2.3 | 3.4.5.6.7 | 0 |10 | 0 |10 | 0:10.00 | | {7.7.8 | | | | | | | {6.7.8 | | | | | | | | | | | | | | | | | | {4.5.6.8 | | | | | 18 | 11- 20 | 7.8 | 1.3 | 3.4.5.6 | 2.4.5 | 4.5.6.7 | 2 | 2.3.4 | {2.3.4.5 | 1.2.3 | {8.8.8.3 | 1 | 9 | 1 | 9 | 1: 9.00 | | | | | | | | | {6.7.8 | | {4.5.6.7 | | | | |