[vanderleck] bacteria OF FROZEN SOILS 11 



Experiment II. 



Table lib. 



Sod Covered Field Eight Years Old. 



Average number of bacteria (in millions) per gram of soil at different depths 

 on different media. 



Experiment II. 

 Table lie. 

 Sod Covered Field Eight Years Old, 

 Moisture Content at Different Depths. 



^ Different place of sampling in same field. 



