«sasHsasasssasasaHSsasHSHSasasasas 
1 L_IBRARY OF 
Illinois State 
LaboraloryofNaturalHislory 
i CHAMPAIGN, ILLINOIS. 
L. 
<ANTA6RArH. BLOOMINSTON 
J 
I 
i 
{ 
I 
OF THL 
U N I V ERS ITY 
or ILLINOIS 
370.5 
J" OU 
\/. ..S BIOLOfl Y 
< 
HP ilHrDEC 3 1 1941 
