56 Report of the Department of Bacteriology ok the 



When studying the influence of the milking machine upon the 

 germ content of the milk the irregularities of the results obtained 

 from such samples led to a study of the influence of various methods 

 of sampling. In considering the results given below it should be 

 remembered that the milk obtained by the milking machine is much 

 more thoroughly protected from the entrance of contaminating 

 material than is practicable with hand milking. 



The samples were collected in sterile test tubes as the milk was 

 poured from the milking machine. Samples were collected at the 



Table I. — Bacterial Content op Milk as it is Poured from the Pail. 



