CONTRIBUTORS. 



BIOLETTI, FREDERIC T., M. S. 



Associate Professor of Viticulture, University of California, Berkeley. Viti 

 culturist of Experiment Station. 



BUCHANAN, R. E., PH. D. 



Professor of Bacteriology, State College, Ames, Iowa. Bacteriologist of Experi- 

 ment Station. 



DORSET, M., B. S., M. D. 



Chief of Biochemic Division, U. S. Bureau of Animal Industry, Washing- 

 ton, D. C. 



EDWARDS, S. F., M. S. 



Professor of Bacteriology, Ontario Agricultural College, Guelph, Canada. 



FROST, W. D., PH. D. 



Associate Professor of Bacteriology, University of Wisconsin, Madison. 



HARRISON, F. C., D. Sc., F. R. S. C. 



Professor of Bacteriology, Macdonald College (Faculty of Agriculture, McGill 

 University), Quebec, Canada. 



HASTINGS, E. G., M. S. 



Associate Professor of Agricultural Bacteriology, University of Wisconsin, 

 Madison. Bacteriologist of Experiment Station. 



HILL, H. W., M. B., M. D., D. P. H. 



Director: Division of Epidemiology, Minn. State Board of Health. Assistant 

 Professor of Bacteriology, University of Minnesota, Minneapolis. 



KING, WALTER E., M. A. 



Formerly Professor of Bacteriology, Agricultural College, Manhattan, Kansas. 

 Bacteriologist of the Experiment Station. Asst. Director, Research Laboratory, 

 Parke, Davis and Co., Detroit, Mich. 



LIPMAN, JACOB G., PH. D. 



Professor of Soil Fertility and Bacteriology, Rutgers College, New Brunswick, 

 New Jersey. Soil Chemist and Bacteriologist of Experiment Station. 



MACNEAL, W. J., M. D., PH. D. 



Assistant Professor of Botany and Bacteriology, Agricultural School, University 

 of Illinois, Urbana. Assistant Chief in Bacteriology, Agricultural Experi- 

 ment Station. 



McCAMPBELL, E. F., S. B., Ph. D. 



Professor of Bacteriology, Ohio State University, Columbus. 

 PHELPS, EARLE B., S. B. 



Assistant Professor of Research in Chemical Biology, Massachusetts Institute 

 of Technology, Boston. 



343 V 979 



