286 



ILLINOIS STATE ACADEMY OF SCIENCE 



be ^n 



H » tO OO O (O tO !0 MOO 



OOOOMlfl tH rH 



If 



OlOOSiSltOMOCCO'* to t- 00 CO 00 t- 



So 



a>o 



OOOOOlOOOOO 

 OOOOOCNOOOO 

 H tO NO W l»» t-_TfH 

 rH rH in CN rH r-T r-l ■* «* <n 



oooooooooo 



TfOOtO«MOO(Of O 

 OOCOHNOOtOtON't M 



oooooooooo 



■^TtHOOOOOOINtOOOtO 



o OOOOOOOOOO 

 Jo tOO tOMOOIN OO^Nrf 

 iO rtNt»tOSlt»fNHO 



O O O IB O O 



moot- o o 

 c- t- t- as cn in 



o o o o o o 



IM ■* M T(l tO rH 



■* 00 00 00 NM 



O O O O O O 



O IN O O tO ^ 



TP ■"*< tO tO OS IB 



O O O O O O 



O 00 00 IN rH -f 



C- 00 r-l CO Hfl) 



+3 oig 



E"< — <N 



(OOOllOOOtO »t-tooo 



■rJ 1 <N 00 O 



he a<2 

 - a° 

 o .© 



aaaaaasgaas 



cjtrJrtcJeSaJcdScScJoj 

 OOOOOOOSoo 



s a£ 



rf cd co 



g*jrygs*;Ssg^ 2* I S 5 2 & § 



r co '3 'S3 'to 'co r co to "J r co 'Eo be o o to 'to Ml ■£ JO 



££££££££&££ M a £ £ £ be £ 

 OOOO0OOOOOOTSi4OOO*r2p 



f,m.t<hhtit<t.ht.2riiHt<*>< 



mmmmmm mmmm pa SmncQ m 





t-tr-tOlAOSlrttOorHCMl'- lrt 00 OS CO 



