^ u 



THE SOIL AND THE MICROBE 



An Introduction to the Study of the Microscopic 



Population of the Soil and Its Role in 



Soil Processes and Plant Growth 



BY 



SELMAN A. WAKSMAN 



Professor of Soil Microbiology 

 Rutgers University 



AND 



ROBERT L. STARKEY 



Assistant Professor of Soil Microbiology 

 Rutgers University 



NEW YORK 



JOHN WILEY & SONS, Inc. 



London: CHAPMAN & HALL, Limited 



1931 



