HABIT FORMATION IN THE ALBINO RAT 



21 



FIGURE 3-B Time Curve for Twenty-five Day Rats. 



Two maxima appear in the time curve, (Fig. 3-B) at 

 eight hundred seconds, and at seventeen hundred seconds re- 

 spectively. A point intermediate between the two would give 

 the time average for the group, approximately thirteen hundred 

 seconds. 



