180 DISEASES OF POULTRY. 



ment than carbolic acid, as it is equally efficacious in 

 killing insects, but is less poisonous to birds and the 

 odor is less objectionable to the operator. It is used 

 in the strength oi 2}4 ounces mixed with a gallon of 

 water. 



Tl-.e treatment of the birds with some of the sub- 

 stances mentioned, although it is in- 

 dispensable for the control of the para- 

 sites, is not alone sufficient. The build- 

 ings must receive prompt attention and 

 thorough treatment. The droppings 

 should be carefully removed and mixed 

 with fine, dry road dust, ashes or lime. 

 Fine dust is destructive to the lice and 

 Fip. 44.— hence should be plentifully used about 

 "'"'""foioffasur. the buildiugs, and given to the fowls in 

 ( 'onis.) boxes so large that they can thoroughly 



dust themselves in it. Pyrethrum and sulphur may 

 be mixed with the dust in such boxes and render it 

 more deadly to the insects. 



The floor of the poultry -house or pigeon -cote 

 should be thoroughly scraped, and covered with fresh 

 sand or road dust. The roosts and all loose pieces of 

 wood should be removed and then the whole inside 

 and also the parts which have been removed should 

 be well wetted by spraying with a solution made by 

 dissolving 6 ounces of crude carbolic acid to the gallon 

 of water. This should be mixed with the water at 

 nearly the boiling point as carbolic acid does not 

 readily mix with cold water. At least once a year the 

 inside woodwork and walls should be given a good 

 coat of lime -wash to which 4 ounces of crude carbolic 

 acid for each gallon has been added. The nests should 

 also be cleaned out, drenched with boiling water or 



