“ III. — That house-flies breed in all temporary collections of 
fermenting matter. 
“ IV. — That house-flies breed in relatively small numbers in ashpits 
where no fermentation takes place. 
“ V.—That they do not breed in ashpits which are emptied at short 
internals, or in the patent bins. 
" VI. —That the use of disinfectants in ashpits does not prevent the 
flies breeding in such receptacles. 
“ VII.—That very dry or excessively wet ashes or moist cow dung* 
does not harbour them. 
" VIII.—That the presence of fowls (not ducks or geese) which had 
free access to the stable middens reduced the number of 
larvae and pupae to a very marked extent. 
“IX. — I hat the life cycle of the fly, in all kinds of fermenting 
materials, is reduced to the minimum period of ten to fourteen 
days; and that in the absence of such artificial heat the 
cycle may occupy a period of from three to five weeks or 
more, according to the temperature of the outside air. 
X. 1 hat house-flies do not depend entirely upon excessively warm 
weather for breeding purposes, though in hot seasons they 
would breed much more rapidly in non-fermenting materials, 
and their numbers, under such conditions, would be greatly 
increased. 
If house-flies are to be reduced to a minimum, I would . . . • 
submit the following suggestions 
i- That stable manure and spent hops should not be allowed to 
accumulate in the middensteads during the months of May to October 
inclusive, for a period of more than seven days. 
All middensteads should be thoroughly emptied and carefully 
swept at the period stated in i. 
f he present system of partly emptying such receptacles should 
m all cases be discontinued. 
r walls of middensteads should also be cemented over, or, 
nig t ns, the brickwork should be sound and well pointed. 
house fl y GXCe T he 6 admix tu re^of 6 W dUng may form a breedi »g P lace for the 
would also render it suitable for^rS^p^oses^ 
