370 



PUBLIC HEALTH BACTERIOLOGY 



r ,. 

 r ., 



very slight cream, |" 

 deposit 



heavy cream, -^" deposit 

 blood- 

 stained deposit 



1,020 

 1,212 



1,584 



364 

 2,532 



1,824 



6,804 



5,9io 



14,460 



10,908 

 5.316 



4.824 



From the samples taken from Cows II., III., and IV., it 

 was clearly shown that the deposit is the proper part of the 

 specimen to take for the examination, it containing by far 

 the greater number of tubercle bacilli. 



4. For Actinomyces. 



Make a film from sediment, and stain by acid-fast 

 method. Actinomycosis in the udder of the cow is 

 usually alleged to be rare, but is stated to be more 

 common in the sow. In an article on " The Occurrence 

 of Actinomycosis in Cows' Udders," by Dr. J. Hume 

 Patterson, in the Journal of Meat and Milk Hygiene (vol. i, 



