370 



PUBLIC HEALTH BACTERIOLOGY 



Cow No. I. 



1 . . . . 



2 . . .. . 

 3 



4 



5 . . . . 



6 . . . . 



7 

 8 



Cow No. II. 



SPECIMEN 



CREAM 

 not done 



Slight cream, J" deposit 



p 



Very slight cream, \" deposit 



7 bac. 



8 



3 



5 



5 



4 ,, 



2 



Very watery. Thin layer of 



cream, i" pus-like deposit o ,, 



Cow No. III. 



i Watery, slight cream, |" pus- 

 like deposit . . . . o 



3 Ditto ditto J" ditto o 



4 Ditto ditto J" ditto o 

 (Milk from quarter only amounted to about 



Cow No. IV. 



DEPOSIT 

 negative 



*8 bac. 



14 - 

 negative 

 6 bac. 

 2 ,, 

 8 



660 bac. 



912 

 1,380 

 3,816 

 2,196 



636 

 1,104 



396 



1 68 bac. 

 192 

 252 

 2 ozs.) 



stained deposit 



1,824 



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, 



