72 Annals Entomological Society of America  [Vol. VII, 
The probable path taken by the flies in this particular case 
was down the East and West gully along the cemetery, then 
along the lowlands to the Commissary and Hotels. The 
profile figured is made in a direct line from the breeding place 
to the hotel, but it seems hardly probable that this was the 
path actually taken. The former is the more likely one. 
Thus it has been clearly shown that a mass of manure 2,500 
feet from the hotels and 150 feet above them, was a menace to 
these places. The experimental results were augmented shortly 
after when this manure heap was completely destroyed. The 
flles at the Commissary and hotel quickly diminished 
in numbers. 
