112 POULTRY 
sprayed, the four applications should keep 
the hens practically free from lice. 
Treatment for Mites. Under many cir- 
cumstances mites are a terrible pest and a 
menace to good egg production. They can 
be controlled by proper spraying. Mites 
live on the body of the hens only at night or 
possibly when they are on the nest. There- 
fore, it is an easy matter to rid a henhouse 
of mites. The henhouse, especially the 
dropping boards and the nests, should be 
thoroughly sprayed with a strong solution 
of crude carbolic acid or similar spray. A 
second spray should be put on about five 
days after the first application. If too long 
or too short a time elapses between the first 
and second spraying the treatment will not 
be successful, because the eggs which had 
already been laid at the time of the first 
spraying will not be controlled by that spray 
and will hatch. The second spray, if applied 
at the end of five days, will catch these young 
mites after they are all hatched and before 
they have become mature enough to lay eggs. 
Salts. It has been proved that the use of 
Epsom salts is beneficial in maintaining the 
