28 



SCIENCE BULLETIN, No. 20. 



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

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



largely coliform types. (Original.) 



C2 



Agar Plate 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-organisms to only 500 per c.c 

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



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



