FOWL CHOLERA. 
157 
5. Disinfection .—For this disease we have a very cheap and 
most effective disinfectant. It is a solution made by adding three 
pounds of sulphuric acid to forty gallons of water (or \ lb. of acid 
to gallons of water) and mixing evenly by agitation or stirring. 
This may be applied to small surfaces with a common watering- 
pot, or to larger grounds with a barrel mounted on wheels and 
arranged like a street-sprinkler. In disinfecting poultry houses 
the manure must be first thoroughly scraped up and removed be¬ 
yond the reach of the fowls; a slight sprinkling is not sufficient, 
but the floors, roosts, and grounds must be thoroughly saturated 
witli the solution, so that no particle of dust, however small, es¬ 
capes being wet. It is impossible to thorough^ 7 disinfect if the 
manure is not removed from the roosting places. 
Sulphuric acid is very cheap, costing at retail not more than 
twenty-five cents a pound and at wholesale but five or six cents; 
the barrel of disinfecting solution can, therefore, be made for less 
than a dollar, and should be thoroughly applied. It must be re¬ 
membered, too, that sulphuric acid is a dangerous drug to handle, 
as when undiluted it destroys clothing and cauterizes the flesh 
wherever it touches. The safest way is, therefore, to take a five- 
gallon keg nearly full of water to the druggist and have him place 
the strong acid in this ; the contents of the keg may then be safely 
transported and added to the barrel of water. 
6. Fumigation .—In those cases where the disease has been 
raging for a considerable time the feathers become saturated with 
the contagion, and it is necessary before placing the fowls on the 
disinfected run to put them in a close building and thoroughly 
fumigate them with sulphur. For this purpose a pan of burning 
coals is taken and flowers of sulphur thrown upon them as long as 
the air can be breathed without danger of suffocation. When the 
disease is recognized at the outset this is not necessary. 
PREVENTIVE MEASURES FOR GROUNDS NOT YET INFECTED. 
1. Newly-acguired birds to be isolated .—When cholera is raging 
in a locality, all birds introduced from other flocks should be 
placed in an inclosure by themselves for at least three weeks, until 
it is certain that they are free from the disease. No fowls should 
