24 BULLETIN 303, TJ. S. DEPARTMENT OF AGRICULTURE. 
to devise a suitable medium for the detection of Bacillus coli in ice 
cream, and our results show that there is no entirely satisfactory 
method known at present. 
BIBLIOGRAPHY. 
1. Hammer, B. W. Bacteria and ice cream. Iowa State College of Agriculture and 
the Mechanic Arts and Agricultural Experiment Station, Bui. 134. Ames, 
Iowa, July, 1912. 
2. Committee on Standard Methods of Bacterial Milk Analysis, Report of. In Amer. 
Jour, of Public Hygiene, vol. 20, new ser. , vol. 6, no. 2, pp. 315-345. Columbus, 
Ohio, June, 1910. 
3. Ayers, S. Henry, and Johnson, Wm. T., jr. A study of the bacteria which survive 
pasteurization. U. S. Dept. Agr.,Bur. Anim. Indus., Bui. 161, 66 p., 30 figs. 
Washington, 1913. 
4. Ayers, S. Henry, and Johnson, Wm. T., jr. The bacteriology of commercially 
pasteurized and raw market milk. U. S. Dept. Agr., Bur. Anim. Indus., Bui. 
126, 98 p., 16 figs. Washington, 1910. 
5. Dolt, Maurice L. Simple synthetic media for the growth of B. coli and for its 
isolation from water. In Jour, of Infectious Diseases, vol. 5, no. 5, pp. 616-626. 
Chicago, Dec. 18, 1908. 
6. Kinyoun, J. J., and Dieter, L. V. On the preparation of Endo's medium. In 
Amer. Jour, of Public Health, vol. 2, no. 12, pp. 979-980. New York, Dec, 
1912. 
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