U. S. DEPARTMENT OF AGRICULTURE. 



BUREAU OF PLANT INDUSTRY— BULLETIN NO. 211. 



B. T. GALLOWAY, Chief of Bureau. 



BACTERIOLOGICAL STUDIES OF THE SOILS OF 

 THE TUUCKEE-CARSON IRRIGATION 



PROJECT. 



BY 



I 



t 



KARJ. F. KELLERMAN, 

 Physiologist in Charge of Soil-Bacteriolog y (uid Water-Purijicalion, Investigations, 



AND 



E. R. ALLEN, 



Sdentijic Assistant. 



Issued April 15, lillL 



NEW YORK 



BOTANICAL 



QARDEiN. 



WASHINGTON: 



GOVERNMENT PRINTING OFFICE. 

 1911. 



