April, '17] 



JOURNAL OF ECONOMIC ENTOMOLOGY 



Plate 14 



Cages used in life-history work. (From Viereck, 

 Mon. Bui., State Hort. Comm.) 



Mealy-bug-infested potato sprouts, used in propagation of parasites. (From 

 Branigan, Mon. Bui., State Hort. Comm.) 



