right as wrong first choices. Consequently, the ratio reads 1 to 1. But
the method was not adhered to, and at no time either before or after
that date did he succeed in equalling this achievement. There was, as a
matter of fact, no steady improvement, and so far as one may judge from
the records which were obtained, the course of events in the solution of
this problem would have been similar to those in problem 2.



TABLE 3

Results for Skirrl, _P. irus_, in Problem 3


========+===========+==============+==============+==============+==============+==============+==============+==============+==============+==============+==============+===+===+===+===+========
Date | No. of | S.1 | S.2 | S.3 | S.4 | S.5 | S.6 | S.7 | S.8 | S.9 | S.10 | R | W | R | W |Ratio of
| trials | 5.6.7 | 5.6.7 | 1.2.3.4.5.6 | 1.2.3.4.5.6 | 4.5.6.7.8 | 4.5.6.7.8 | 2.3.4.5 | 2.3.4.5 | 3.4.5.6.7.8.9| 3.4.5.6.7.8.9| | | | |R to W
________|___________|______________|______________|______________|______________|______________|______________|______________|______________|______________|______________|___|___|___|___|________
August | | | | | | | | | | | | | | | |
| | | | {6.5.4.6 | | | | | | | {8.7.6.5 | | | | |
19 | 1- 10 | 7.5 | 6.7 | {3.2.6.4 | 5.3.6 | {7.8.7.6 | 8 | 4.3.5.4.5.2 | 5 | 9.8.7.6.4.3 | {4.5.8.7 | 2 | 8 | 2 | 8 | 1:4.00
| | | | {3.6.1* | | {8.6.4 | | | | | {6.5.9* | | | | |
| | | | | | | | | | | | | | | |
| | | | {5.4.6.5 | | {8.7.6.7 | | | | | | | | | |
20 | 11- 20 | 7.6.5 | {6.5.6.5 | {4.6.5.3 | 5.3.2.4.6 | {7.5.8.8 | 8 | 5.4.3.2 | 4.5 | 8.7.6.5.4.3 | {8.7.6.8.3 | 1 | 9 | 1 | 9 | 1:9.00
| | | {7 | {2.5.1* | | {7.6.4* | | | | | {7.6.4.3.9 | | | | |
| | | | | | | | | | | | | | | |
| | | | {6.2.5.6 | | | | {5.3.5.4 | | | | | | | |
21 | 21- 30 | 7.6.7.6.5 | 7 | {5.3.6.5 | 2.5.5.6 | 8.6.5.4 | 8 | {3.5.3.5 | 5 | {9.8.7.6 | 8.9 | 3 | 7 | 3 | 7 | 1:2.33
| | | | {4.3.1* | | | | {4.3.2* | | {5.4.3 | | | | | |