] ■iitrual of Agricu'rurc , Yicioria. [lo Aug., 19 12. 



indeed, in fat condition. They were, howexer, known to be affected 

 ■with tuberculosi.s, di.strihuting the bacilli through their faeces, and some 

 oof them through th-ir milk. The necessity for cleanliness in m'lking 



riG. 31. cow APPARENTLY HTlALTHY, GOOD CONDI FION FOR DAIRY COW. 

 KNOWN TO BE TUBERCULOUS FOUR YEARS. DUNG OF THIS COW CAUSED 

 TUBERCULOSIS IN PIGS THAT WERE PERMITTED TO EAT IT. 



methods in the yard, and hind-quarters of the cow, is thus evident; for 

 It will readily be seen how milk can be contaminated where operations are 

 carr'ed on under insanitar\' conditions, and where cows, whose flanks are 

 covered with manure, which may possibly contain large numbers of 



AL)\'AN(,'L1) 11 liKKt/l l_().sl 



"the organisms, are milked. The spread of the disease to the pig also 

 x;curs when they are allowed to roam at will and root about in the manure 

 heap contaminated, possibly, by only one cow in a herd. 



