170 M F. WASHBURN AND EDWINA ABBOTT 



per cent, of the time. His results thus confirm, in a longer series, 

 those obtained from Abednego. The series lasted from May 10 

 to May 1 6. 



Series 29. Saturated blue and grey number 7. Blue opens. 

 This series comprised 287 experiments, made for the most part 

 at the rate of ten a day. His total percentage of correct choices 

 for the series was 57. His daily percentages were as follows: 

 20, 30, 50, 50, 50, 60, 80, 50, 80, 60, 50, 100, 50, 50, 70, 40, 80, 

 60, 45, 100, 55, 60, 80, 80, It would appear that some progress 

 was being made towards learning this discrimination. 



E. Experiments with Meshach {male) 



Series 30. Red and Hering grey number 7. Red opens. This 

 series was made during the same period as Series 20 and 27, and 

 under the same conditions. 



In the ^^ tests made at the rate of three a day, the rabbits 

 being tested in rotation, Meshach made 40 per cent, of right 

 choices. 



In the 44 tests made at the rate of four a day, Meshach made 

 47 per cent, of correct choices. 



In the 40 experiments made at the rate of four a day, without 

 rotation, Meshach made 77 per cent, of right choices. 



Series 31. Red and Hering grey number 15. Red opens. 

 This series corresponds to Series 21. In the 96 tests of the series, 

 made at the rate of four a day, Meshach made a total of 60 per 

 cent, of right choices. His behavior was very irregular, and on 

 two days work with him had to be given up altogether. On the 

 last three days his percentage of correct choices was 58, and on 

 the preceding three days it was ^t,. The work with this rabbit 

 was interrupted from April 1 7 to May 8. From May 8 to May 1 7 

 he was given ten tests a day, in immediate succession, with red 

 and grey number 1 5 . In the 90 experiments his total percentage 

 of correct choices was 88. Increasing the number of tests a day 

 seemed to steady his otherwise highly erratic behavior toward 

 the experiment box. 



The refusal of Meshach to have any further dealings with the 

 box after four days' trial of the red-Stoelting black combination 

 has already been recorded. 



