Agricultural Gazette of N.S.W., July 2, 1920. 



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Litmus Lactose Agar Plate, 1 c.c. of well water used for washing butter. 



Note the large number of colonies, coli, proteus, and moulds, corresponding- with 



infection found in butter. Total count 11,630 per c.c. 2„.^j n (Original.) 



