"ir¬ 
relative adrenal weights of trapped cottontails would be larger than those 
of hunted rabbits because the trapped animals had spent within traps all or 
part of their usual nighttime feeding period, and should have lost weight. 
This hypothesis was tested by comparing the relative adrenal weights of 25 
trapped adult male rabbits with those of 10 hunted adult males and by compar¬ 
ing the relative adrenal weights of 25 trapped juvenile male rabbits with 
th^se of 23 hunted juvenile males. Relative adrenal weight was expressed as 
10 times the ratio of the fresh weight of both adrenals to body weight. 
The average relative adrenal weight )f trapped adult male rabbits was 
25-68, 25 percent larger than that of hunted adult males (20.52). The 
difference was statistically significant (P_<^0.03). The average relative 
adrenal weight of trapped juvenile male rabbits was 19.36, 10 percent larger 
than that of hunted juvenile males (17.66). The latter difference was not 
significant (P.<10.15), but the hypothesis that relative adrenal weights of 
trapped cottontails are biased upward and should not be compared with those 
of hunted rabbits is accepted on the basis of the two tests. 
