* 330 The Diseases of Animals 
tains some moisture, and in a short time swarms of 
young flies emerge. The removal of such material pre- 
vents the breeding of the insects. It also removes a 
part of the food supply of the old insects. In many 
cases stables can be protected by fly-sereens, or darkened 
so that the flies will not pester the inmates. Animals 
can also be well protected in some cases by the use of 
individual fiy-nets. There are upon the market some 
excellent remedies which, when applied to the skin of 
the animal by means of a brush or spray, are offensive 
to flies and will protect the animal until the applica- 
tion evaporates. 
A solution of one part of varbolic acid in twenty 
parts of water, or a solution of one part of creolin or 
similar coal-tar product to fifty parts of water, sprinkled 
about the stable, tends to keep the flies away, as well as 
to disinfect the stable. 
MAGGOTS 
Most of the maggots on animals are the larval or 
“orub” stage of the flesh-fly which swarms about dwell- 
ings and stables. The adult fly deposits the small, living 
larve. on fresh meat, as well as on the surfaces of 
wounds, especially where the tissues have been injured 
to a considerable depth. It also deposits larve in the 
wool of sheep where it has collected manure and other 
filth and become matted. The larvae may then work 
their way into the skin, causing extensive sores, which 
may result in the death of the animal. 
There is considerable irritation, as shown by the ani- 
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