RESULTS obtained in experiments with the use of 

 chemicals against fly larvae in manure are pre- 

 sented in Bulletins Nos. 118, 245, and 408 of the De- 

 partment of Agriculture. The biology of the house 

 fly and the various methods of control are discussed 

 in Farmers' Bulletin 851. 



This bulletin is intended to give directions for the 

 use of a supplementary means of controlling flies. 

 It is adapted to all parts of the United States. 



