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



B3 



Agar Plate Culture of Cream immediately before churning (dilution, 1 to 1,000}. 

 Held in vats overnight at 57 deg. Fah. 



Note the irreat amount of re-infection that has taken plare, largely through 

 a selected unpasteurised can of cream being used as a starter. 



(Original.) 



B4 



Agar Plate Culture of butter from surface of box after packing 

 (dilution, 1 to 1,000). 



Note many of the organisms shown in 63 have been eliminated 



through draining off the buttermilk and wash waters. (Original.) 



