THE PEA APHIS WITH EELATIOX TO FORAGE CROPS. 33 
O O O O : 
iOOOOOOOOOOOOOOOOO 
.O«CXr-<lMM'^lO>OO-H-HOOOIN^^r0-HOO-HOl-IC«5(MOC>1-4^ -< 
>t^CC-*'-(.-H(NeO.-if^O-HOOOOOO<NOCOOOOOOOCOC;C;C:=;0000 
98034^— Bull. 276—15 5 
