HABIT FORMATION IN ALBINO RATS 



35 



TABLE Vb 

 THE INCLINED PLANE 

 AVERAGE ABSOLUTE RETENTION OF INBRED AND NORMAL CONTROL RATS 



Absolute Retention 

 After 60 Days' Rest 



Inbred Average 31 . 842 seconds 



Control Average 22.587 seconds 



TABLE Vc 



THE INCLINED PLANE 



DAILY RELEARNING AVERAGES OF INBRED AND NORMAL CONTROL RATS 



(Time in seconds) 



Inbred Average . . 

 Control Average . 



Inbred Average . . 

 Control Average . 



Inbred Average . . 

 Control Average. 



Inbred Average . . 

 Control Average. 



Inbred Average . 

 Control Average . 



Day 21 Day 22 



2.607 



2.586 



Inbred Average. . 

 Control Average . 



2.729 

 2.586 



Failed 



to Relearn 











Day 23 

 2.596 



2.586 



Day 24 



2.554 

 2.586 



Days Required 



to Relearn 



6.74 



4.68 



Day 5 



5.067 

 5.021 



Day 10 

 2.828 



3.293 



Day 15 



2.807 

 2.664 



Day 20 



2.677 

 2.586 



Day 25 



to 50 



2.554 

 2.586 



TABLE Vd 

 THE INCLINED PLANE 



ANATOMICAL DATA OF INBRED AND NORMAL CONTROL RATS 



Body 

 Weight 

 in grms. 

 184.37 

 189.18 



Body 

 Length 

 in mm. 



Inbred Average 195 . 93 



Control Average 194 . 43 



Water 



in Cord, 



per 



cent 



Inbred Average 71 .437 



Control Average 71.223 



