BIBLIOGRAPHY dol 
Hint, H. W. 1912. The Detailed Procedure to be Followed in an Epidem- 
iological Determination of the Origin of a Typhoid Outbreak. Proceedings 
Illinois Water Supply Assn, 1912, 96-105. 
JorDAN, E. O. and Irons, E. E. 1912. The Rockford (Ill.) Typhoid Epi- 
demic. Jour. Inf. Diseases, 11, 21-43. 
Sawyer, W. A. 1914. Ninety-three Persons Infected by Typhoid Carrier 
at a Public Dinner. Jour. Amer. Med. Assn., 63, 1537~—1542. 
Sawyer, W. A. 1915. A Water-borne Typhoid Fever Epidemic. California 
State Board of Health, 10, 303-311. 
