Agricultural Gazette of N S.W., May 3, 1920. 



B1 



Glucose Agar Plate Culture of Cream before pasteurising 

 (dilution, 1 to 1,000). 



Note i^reat latent infection. The colonies developed represent 108,355,000 



microorg'anisnis per c.c, largely coliforin types. (Original.) 



B2 



Agar Plate Cu'ture of Cream after pasteurising by flash system, 

 at 182 deg. Fah. (dilution, 1 to 109.) 



Note the effect of pasteurisation. Number of cirganisnis reduced from 



10;<,355,000 micro-organisms to 14,480. (()ris;inal. ) 



