Agricultaral Gazette of N.S.W., July '2, 1920. 



CI 



Agar Plate Culture of Cream before pasteurising (dilution 1 to 1,000). 



N'ote the amount of latent infection in this cream as delivered at the factory ; 



larg-ely coliform types. (Original.) 



C2 



Agir Plata Culture of Cream after pasteurising by holding system, 

 at 145 deg. Fab. (dilution 1 to 10). 



Note the great reduction in the count, from 150,997,000 micro-org-anisms to only 500 per o.c. 

 The latent infection has been killed out before the development could affect 



the flavour of the cream or outter. (Original.) 



