432 SOILS: PROPERTIES AND MANAGEMENT 



Number of Bacteria to a Gram of Soil during Some 

 Period of the Growing Season 



1 Chester, F. D. The Bacteriological Analysis of Soils. 

 Delaware Agr. Exp. Sta., Bui. 65. 1904. 



2 Mayo, U. S., and Kinsley, A. F. Bacteria of the Soil. 

 Kansas Agr. Exp. Sta., Bui. 117. 1903. 



3 Brown, P. E. Some Bacterial Effects of Liming. Iowa 

 Agr. Exp. Sta., Research Bui. 2. . 1911. 



