Kansas State Agricultural College, 



EXPERIMENT STATION. -Bulletin 161. 



ED. H. WEBSTER, Director. 



TECHNICAL BULLETIN. 



Bacteriology Department. 



WALTER E. KING, Bacteriologist in Charge. 



THE INFLUENCE OF DEPTH OF CULTIVATION 



UPON SOIL BACTERIA AND THEIR 



ACTIVITIES. 



BY 



WALTER E. KING, Bacteriologist. 

 CHARLES J. T. DORYLAND, Assistant in Soils. 



MANHATTAN, KANSAS, 

 AUGUST 12, 1909. 



