492 ¥ARM ANIMALS 
raised under good sanitary conditions otherwise, disease 
among live stock is not at all common. Premises, 
stables, stalls, chicken coops or houses may be disinfected 
by steam, boiling water, and chemical substances. For- 
malin is the best disinfectant for closed rooms and farm- 
houses. The stables and outbuildings may be sprayed 
or washed with solutions containing carbolic acid, kero- 
sene or the now common coal-tar preparations. The 
method is first to remove all litter, dust or other obstruc- 
tion and then freely to spray until every part of the 
quarters is made thoroughly wet. 
7. Filth-—Disinfection must go hand in hand with 
cleanliness. Little is gained by using disinfectants, even 
though that be done very freely, if filthy quarters for live 
stock are permitted to exist. A maintenance of cleanli- 
ness precludes the necessity for much disinfection. Peo- 
FILTHY AND Poorly Kept Cow BARN 
The bacterial count of the milk produced in this barn is sure to be high, 
