CONTROL OF THE HOUSE FLY AND RELATED FLIES L55 



Fig. 3:?. — A maggot tra]i for house-fly control. View of the mnggot trap, showing the 

 concrete basin containing water in whicli larvae are drowned, and the wooden 

 platform on which manure is heaped. (Hutchison.) From U. S. Dept. Agr. Bull. 

 -'00, plate 1 (larger), or farmer's bull. 8,51, fig. 14 (as above). 



Plate V. — Manure box with fly trap attached. (Bishopp.) 



