VI CONTRIBUTORS 



KING, WALTER E., M. A., M. D. 



Formerly Professor of Bacteriology and Bacteriologist of Experiment Station, 



Kansas Agricultural College, Manhattan; Assistant Director of Research 



Laboratory, Parke, Davis & Co., Detroit, Michigan. Laboratory Director, 



Beebe Laboratories, Inc., St. Paul, Minnesota. 

 LIPMAN, JACOB G., PH. D. 



Dean of Agriculture, Rutgers College; Director of Experiment Station, New 



Brunswick, New Jersey. 

 MACNEAL, WARD J., PH. D., M. D. 



Professor of Bacteriology and Director of the Laboratories, New York Post- 



Graduate Medical School and Hospital, New York. 

 McCAMPBELL, EUGENE F., PH. D., M. D. 



Professor of Preventive Medicine, Dean of the Medical College, Ohio State 



University. 

 PHELPS, EARLE B., B. S. 



Professor of Chemistry, Hygienic Laboratory, U. S. Public Health Service, 



Washington, D. C. 

 RAHN, OTTO, PH. D. 



Formerly Assistant Professor of Bacteriology, Illinois University, Urbana. 



Now Elbing, Germany. 

 RETTGER, L. F., PH. D. 



Professor of Bacteriology and Hygiene (in Sheffield Scientific School), 



Yale University, New Haven, Connecticut. 

 REYNOLDS, M. H., B. S., M. D., D. V. M. 



Professor of Veterinary Medicine and Surgery, Agricultural College, Univer- 

 sity of Minnesota; Experiment Station, University Farm, St. Paul. 

 SACKETT, WALTER G., B. S., Ph. D. 



Bacteriologist, Colorado Experiment Station, Colorado Agricultural College, 



Fort Collins. 

 STOCKING, W. A., M. S. A. 



Professor of Dairy Industiy, Cornell University, Ithaca, New York; Dairy 



Bacteriologist of the Experiment Station. 

 THOM, CHARLES, PH. D. 



Mycologist, Bureau of Chemistry, U. S. Department of Agriculture, Wash- 

 ington, D. C. 

 TODD, J. L., B. A., M. D., D. Sc. 



Associate Professor of Parasitology, McGill University, Montreal. 

 WYANT, ZAE NORTHRUP, M. S. 



Research Associate in Bacteriology, Michigan Agricultural Experiment 



Station, East Lansing. 



