16 



be more inisJeadii'g or further from the truth. Disiu 

 fection is practised for the purpose of destroying dis 

 ease producing germs and disinfectants, or the mate- 

 rials used for disirfeeting, will only destroy germs that 

 they come in eortact with. It is perfectly evident that 

 when disinfectants are scattered about carelessly tkey 

 oome in coDtact with a very small fraction of the entire 

 surfaces that may harbor germs, and unless all of these 

 surfaces are covered and all of the germs reached the 

 disinfection is apt to be fruitless. In order that dis- 

 infection may be carried out properly it is essential, 

 ilrsit of all, to remove the manure, litter and rubbish of 

 all /dnds. This should be mixed with lime and placed 

 in barrels, or it should be spread on fields at such a dis- 

 tance from the poultry runs that it cannot possibly 

 contaminate them. However, if the disease is a viru- 

 lent one it is always best to bum manure rather than 

 take any chances with it. Then the interior of the 

 building should be thoroughly swabbed or scrubbed 

 out, and afterv. ards the disinfectants can be employed. 

 Disinfectants are best used in solution because they 

 can then be applied more evenly and perfectly. They 

 can be a])plied with a Itrush, with a sprinkling pot or, 

 best of all, with a spray pump, such as is used for 

 spr.aying fruit trees. The disinfectants to be employed 

 in special cases are mentioned hereafter in connection 

 with the prevention of the different diseases. White- 

 wash is always a good disinfectant, but its value can 

 be greatly increased for this purpose by adding chloride 

 of lime to it, one pound to three or four gallons, or car- 

 bolic acid, one pint to the bucketful. 



