360 IVAN C. HALL AND LILLIAN J. ELLEFSON 



own experience have taught that the presence of fermentable 

 carbohydrates inhibits sporulation of anaerobic bacteria. Aside 

 from these forms, however it is to be expected that certain 

 sporulating anaerobes incapable of fermenting lactose would 

 gain access to milk and, theoretically at least, there should be no 

 inhibition of sporulation in their case. This particular phase of 

 the problem will have to be attacked in another way. 



REFERENCES 



A. P. H. A. 1916 Provisional report to the laboratory section of the American 

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Ayers 1917 The significance of colon bacillus in milk. Abstracts of Bact., 

 1,52. 



Breed and Brew 1916 Counting bacteria by means of the microscope. N. Y. 

 Agric. Exp. Sta. Tech. Bull. no. 49. 



Cal, 1915 State Dairy Bureau. Laws of California relative to production and 

 standards of dairy products. 



Hall and Ellefson 1918 The elimination of spurious presumptive tests for 

 B. coli in water by the use of gentian violet. J. Bact., 4, 329. 



Harding 1917 Bacterial count as an index of cleanliness in milk. Abstracts 

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HiBLER 1908 Untersuchungen iiber die pathogenen Anaeroben. Gustav 

 Fischer in Jena. 



Sherman 1916 The advantages of a carbohydrate media in the routine bac- 

 terial examination of milk. J. Bact., 1, 481. 



Simonds 1915 Studies in Bacillus welchii. Monograph no. 5, Rockefeller 

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