Bul. 245, U. S. Dept. of Agriculture. PLATE |. 
DESTRUCTION OF FLY LARVA IN HorRSE MANURE. 
Fia. 1.—Type of cage used for catching flies from treated manure piles. Fic. 2.—Settled and finely 
divided condition ofan untreated pile, heavily infested with maggots. Fic. 3.—A hellebore-treated 
pile of same source and volume as figure 2. Hellebore, by preventing growth of fly maggots, 
prevented the disintegration of the heap. (Original.) 
Se 
