22 



GARDNER CHENEY BASSET 



Control +B. 

 Control B. 



TABLE Ilia (Continued 



Day 61 Day 62 Day 63 Day 64 Day 65 



6.052 7.346 6.857 5.821 5.794 



4.908 4.908 4.908 4.908 4.908 



Day 68 Day 69 Day 70 



5.528 5.963 5.643 



4.908 4.908 4.908 



Day 73 Day 74 Day 75 



5.426 5.603 5.381 



4.908 4.908 4.908 



Day 78 Day 79- Day 80 



5.519 5.457 6.106 



4.908 4.908 4.908 



Day 83 Day 84 Day 85 



5.617 5.608 5.497 



4.908 4.908 4.908 



Day 88 Day 89 Day 90 



5.546 5.479 5.479 



4.908 4.908 4.908 



Day 93 Day 94 Day 95 



5.452 5.612 5.510 



4.908 4.908 4.908 



Day 98 Day 99 Day 100 



5.399 5.559 5.626 



4.908 4.908 4.908 



Days Required 

 to Learn 

 35.67+ 

 16.42 



TABLE Illb 



THE MAZE 

 AVERAGE ABSOLUTE RETENTION OF +B AND B NORMAL CONTROL RATS 



Absolute Retention 

 After 60 Days' Rest 



Control +B 72.475 seconds 



Control B . . 51 . 083 seconds 



TABLE IIIc 



THE MAZE 



DAILY RELEARNING AVERAGES OF +B AND B NORMAL CONTROL RATS 



Control +B. 

 Control B. 



Control +B, 

 Control B. 



Day 1 



36.215 

 23.480 



Day 6 



8.075 

 6.410 



Day 2 



29.230 

 11.767 



Day 7 

 7.200 



5.307 



Day 3 



10.930 

 8.597 



Day 8 

 6.970 



5.223 



Day 4 



11.180 

 5.873 



Day 9 

 6.340 



5.223 



Day 5 



7.990 



5.587 



Day 10 

 6.240 



5.223 



