REDINTEGRATION IN ALBINO RAT— A STUDY IN RETENTION 33 



clearly by reference to Table V-B, records 1 and 6 being 

 perfect in redintegration, while in record 5 the first trial 

 of redintegration was was imperfect, and thus 16 trials 

 were required to complete the series. As individual dif- 

 ferences show, it seems quite probable that there are some 

 rats which would never exhibit perfect integration from 

 the very first of the redintegration series of trials even if 

 the learning period were excessively prolonged or the re- 

 tention period shortened. And, therefore, although redin- 

 tegration in the other rats of the group did not evidence 

 such perfect retention, the fact that two retained the 

 maze perfectly for 30 days seemed to indicate that this 

 period may be laid down as the approximate maximal 

 period of perfect retention for the maze. This was con- 

 firmed by a later experiment. 



The records of this group of rats in Tables V-A and 

 V-B will not be considered separately to confirm what 



TABLE V-A 



30-Day Period. 1 Trial per Day 



"Errors" At Turns 



Last 25 Trials of Learning; Complete Redintegration 



