HEALTH CONDITIONS 43 



records up to the very day they died. An example of such a case is 

 shown in Fig. 9, which gives the daily record of No. 156, White c?, 

 who although stunted and very ill throughout the experiment, never- 

 theless made good records. This mouse did not seem to care for the 

 reward, which was the food to be found at the end of a successful 

 trip, and when it returned to its next box it suddenly became very 

 inactive, and did not appear to arouse itself again until it was tested 

 the following day. The tables also indicate the incomplete records 

 of several mice that made good records up to the time of their death, 

 and show that when a habit is once firmly fixed it may resist a good 

 deal of distracting influences. 



