16 



be more iiiislciuliiig or further fi-oni I lie inith. Disiu 

 fecHon is practised for the pnriKvsi- of tleslrdvinn dis 

 ease prodiielny: genus and disinfectants, or tlic mate- 

 rials used for disinfect inir. will onlv destroy germs that 

 they come in c(<ntnct wilh. It is pei'fectly evident that 

 when disinfectants art- scattered about carelessly they 

 come in contact with a very small fraction of the entire 

 surfaces that may harl)or germs, and unless all of these 

 surfaces are covered and all cf the germs reached the 

 disinfection is apt to be fruitless. In ord(^r that dis 

 infi'ctidii may be c.-d ricd onl ]n(i|icri\ ii is csscnlial, 

 lirst (rf all. U. rein.,Vf tlic manure, lillcr and rulibisli of 

 all .dnd.s. This slioubl be mixed witli lime and placed 

 in ban-els, or ii sluMihl be sjiiead on fields at such a dis- 

 tance from tiie jioullry 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 Ihoioughly swabl>ed or sci-nbbed 

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

 Disinfectants are best used in solution because they 

 can tlu-n be applied more evenly and perfectly. They 

 can be ajiplii-d wilii ,\ brnsli, witii a sprinkling pot or. 

 best of all, "illi a s))ray pump, such as is used for 

 spraying fruit trees. Tlie disinfectants to be employed 

 in special cases are mentioned hereafter in connection 

 with the prevention of the different diseases. White- 

 wasli is always a good disinfectant, but its v:tlii(> can 

 lie grcaily increased for this ])urpose by adding clilorido 

 if lime to it. one pound to three or four gallons, or car 

 bolic acid, one pint to the bucketful. 



