POULTRY dise;ase;s and the;ir treatment. 13 



It should, of course, be handled with great care and the pure cre- 

 sol should not be allowed to come in contact with the skin. If it 

 does so accidentally the spot should be immediately washed off 

 with plenty of clean water. The price of commercial cresol 

 varies with the drug market. It can be obtained through any 

 druggist. On the day that this was written the quotation on 

 cresol in the New York market is 24 cents per pound. In pur- 

 chasing this article one should order simply "commercial cre- 

 sol." 



Measure out 3 1-5 quarts of raw linseed oil in a 4 or 5 gallon 

 stone crock ; then weigh out in a dish i lb. 6 oz. of commercial 

 lye or "Babbit's potash." Dissolve this lye in as little water as 

 will completely dissolve it. Start with ^ pint of water, and if 

 this will not dissolve all the lye, add more water slowly. Let 

 this stand for at least 3 hours until the lye is completely dissolved 

 and the solution is cold ; then add the cold lye solution very slow- 

 ly to the linseed oil, stirring constantly. Not less than 5 minutes 

 should be taken for the adding of this solution of lye to the oil. 

 After the lye is added continue the stirring until the mixture is 

 in the condition and has the texture of a smooth homogeneous 

 liquid soap. This ought not to take more than a half hour. 

 Then while the soap is in this liquid state, and before it has a 

 chance to harden add, with constant stirring, 8)^ quarts of com- 

 mercial cresol. The cresol ' will blend perfectly with the soap 

 solution and make a clear, dark brown fluid. The resulting solu- 

 tion will mix in any proportion with water and yield a clear 

 solution. 



Cresol soap is an extremely powerful disinfectant. In the 

 Station poultry plant for general purposes of disinfecting the 

 houses, brooder houses, incubators^ nests, and other wood work, 

 it should be used in a 3 per cent solution with water. Two or 3 

 tablespoons full of the cresol soap to each gallon of water will 

 make a satisfactory solution. This solution may be applied 

 through any kind of spray pump or with a brush. Being a clear 

 watery fluid it can be used in any spray pump without difficulty. 

 For disinfecting brooders or incubators which there is reason 

 to believe have been particularly liable to infection with the 

 germs of white diarrhea or other diseases the cresol may be 

 used in double the strength given above and applied with a scrub 

 brush in addition to the spray. 



