1 2 2 Public Health— By Gift 



HOAGLAND LABORATORY, Brooklyn, N. Y. 



3 Bacterial cultures. 



HYGIENIC LABORATORY, Washington, D. C. 



12 Bacterial cultures. 

 JOHNS HOPKINS UNIVERSITY, Baltimore, Md. 



37 Bacterial cultures. 

 MACDONALD COLLEGE, Quebec, Canada. 



i Bacterial culture. 

 MICHIGAN AGRICULTURAL COLLEGE, East Lansing, Mich. 



41 Bacterial cultures. 

 MOUNT PROSPECT LABORATORY, Brooklyn, N. Y. 



31 Bacterial cultures. 

 H. N. MULFORD CO., Glen Olden, Pa. 



1 Bacterial culture. 

 NEW JERSEY AGRICULTURAL EXPERIMENT STATION, New 

 Brunswick, N. J. 



9 Bacterial cultures. 

 NORTH DAKOTA AGRICULTURAL COLLEGE, Agricultural College, 

 N. Dak. 



1 Bacterial culture. 



ONTARIO AGRICULTURAL COLLEGE, Guelph, Canada. 



14 Bacterial cultures. 

 PARKE DAVIS & CO., Detroit, Mich. 



50 Bacterial cultures. 

 PHILADELPHIA HOSPITAL FOR CONTAGIOUS DISEASES, Phila- 

 delphia, Pa. 



4 Bacterial cultures. 



R. W. PRATT, Columbus, Ohio. 



Photograph of Septic Tank at Columbus, Ohio, Sprinkler Nozzle. 

 ROCKEFELLER INSTITUTE FOR MEDICAL RESEARCH, New 

 York City. 



24 Bacterial cultures. 

 SYRACUSE UNIVERSITY, Syracuse, N. Y. 



2 Bacterial cultures. 



W. GAVIN TAYLOR, Newark, N. J. 



Sprinkler Nozzle. 

 TEACHERS COLLEGE, New York City. 



11 Bacterial cultures. 

 UNIVERSITY OF CHICAGO, Chicago, 111. 



65 Bacterial cultures. 

 UNIVERSITY OF IOWA, Ames, Iowa. 



4 Bacterial cultures. 

 UNIVERSITY OF MINNESOTA, Minneapolis, Minn. 



2 Bacterial cultures. 

 UNIVERSITY OF NORTH DAKOTA, University, N. Dak. 



2 Bacterial cultures. 



