October, '11] 



CUSHMAN: BIOLOGY OF BOLL WEEVIL 



439 



CO CO CO CO 



lO to CO 



ca to 







oa 



(M -H ° 



;=; M 7 7 " 



oo o= 2 2 ° 



.2 cG 



eiD *^ t^ 



« ^ 5 :! in 



**- «... O O 



