| +--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+--------------+ | | | |
28 | 1-10 | 2 | 6 | 3 | 4 | 6 | 5.4.1 | 2 | 3 | 5 | 5.4.2.1 | 8 | 2 | | |
" | 11-20 | 2 | 6 | 3 | 4 | 6 | 2.1 | 2 | 3 | 5 | 1 | 9 | 1 |17 | 3 | 1:0.18
| | | | | | | | | | | | | | | |
========+===========+==============+==============+==============+==============+==============+==============+==============+==============+==============+==============+===+===+===+===+========

Six minutes after completion of the first control series, a second was
given under slightly more favorable conditions, and in this only a
single wrong choice occurred, in that box 2 was first chosen in trial 6
instead of box 1. From the results of these two control series, it is
evident that Sobke's solution of problem 1 is reasonably adequate. He is
easily diverted or disturbed in his work by any unusual circumstances,
but so long as everything goes smoothly, he chooses with ease and
certainty. Whether it is fair to describe the behavior as involving an
idea of the relation of the right box to the other members of the group
would be difficult to decide. I hesitate to infer definite ideation from
the available evidence, but I strongly suspect the presence of images
and relatively ineffective or inadequate ideation.

It is perfectly evident that Sobke is much more intelligent than Skirrl.
In practically every respect, he adapted himself more quickly to the
experimental procedure and progressed more steadily toward the solution
of the problem than did Skirrl. The contrast in the learning processes
of the two monkeys could scarcely be better exhibited than by the curves
of learning which are presented in figure 18. The first, that for Sobke,
is surprisingly regular; the second, that for Skirrl, is quite as
surprisingly irregular. These results correlate perfectly with the
steadiness and predictability of the former's responses and the
irregularity and erraticness of the latter's.

_Probl