Vo 1. 9 , No. 1 
Page 7 
Table 6. Summary of weights and measurements of 3' juvenile male cottontails 
collected on the South Farm of the University of Illinois campus, June 23 - 
October 27, 1965 - 
Average 
Range 
Smal1est 
Largest 
Body Weight (grams) 
698 
273 
1 ,049 
Total Length (decimeters) 
5.01 
3-90 
5.65 
Condition Index 
5-39 
4.60 
6.44 
Average Weight of Adrenals (mg) 
67.4 
26.5 
1 17.0 
Spleen Weight (mg) 
724 
159 
2,650 
Adrena1-spleen ratio* 
0.14 
0.03 
0.35 
* Condition index = body weight divided by total length cubed. 
+ AdrenaI-spleen ratio = average weight of adrenals divided by weight of spleen. 
