MICROBIOLOGY 



FOR 



Agricultural and Domestic Science Students 



CONTRIBUTORS 



F. T. Bioletti, Berkeley, California. 

 R. E. Buchanan, Ames, Iowa. 

 M. Dorset, Washington, D. C. 

 S. F. Edwards, Guelph, Canada. 

 W. D. Frost, Madison, Wisconsin. 

 F. C. Harrison, Macdonald College, 



Canada. 



E. G. Hastings, Madison, Wisconsin. 

 H. W. Hill, Minneapolis, Minnesota. 

 W. E. King, Detroit, Michigan. 



J. G. Lipman, New Brunswick, N. J. 

 W. J. MacNeal, Urbana, Illinois. 

 E. F. McCampbell, Columbus, Ohio. 

 Earle B. Phelps, Boston, Massachusetts. 

 Otto Rahn, East Lansing, Michigan. 

 M. H. Reynolds, St. Paul, Minn. 

 W. G. Sackett, Fort Collins, Colo. 

 W. A. Stocking, Ithaca, New York. 

 Charles Thorn, Storrs, Connecticut. 

 J. L. Todd, Montreal, Canada. 



EDITED BY 



CHARLES E. MARSHALL 



East Lansing, Michigan 



PROFESSOR OP BACTERIOLOGY AND HYGIENE, MICHIGAN AGRICULTURAL COLLEGE 



WITH 128 ILLUSTRATIONS 



PHILADELPHIA 



P. BLAKISTON'S SON & CO. 



1012 WALNUT STREET 

 1911 



