[vanderleck] 



BACTERIA OF FROZEN SOILS 



19 



Experiment V. 

 Table Vb. 



CXILTIVATED BlACK MuCK SoIL. 



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



on different media. 



Experiment V. 



Table Vc. 

 Cltltivated Black Muck Soil. 

 Moisture Content at different depths. 



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