BACTERIAL INHIBITION 



533 



Culture R (table 3) grows more slowly for the first 90 minutes 

 in the raw milk than in the heated milk. The raw milk growth 

 is distinctly different from that of Bact. coli, however, for only a 



Baet. per c.e. 

 6.00 



5.50 



5.00 



60 



4.00 



3.50 

 Hours 12 3 4 



Chart 1. Growth of Bacteria in Milk Inoculated with B. coli at 37°C. 



lag phase and no germicidal action is evident. This is shown in 

 chart 2, which is based on the logarithms of the averages of table 

 3. It is noticeable that a type of growth similar to that repre- 



