192 Report of the Department of Bacteriology of the 



Bacteria 1913 

 Nov;, dec. 



191* 



JAN. fCB. MAR. APR. 



TEnrERATUfte 



15° 



ltf 



5° 



0° 

 -5° 

 -10 c 

 -15 



Graph VIII. — Bacterial Counts from Field Soil, Dunkirk 



Silty Clay Loam. 

 Bacteria in millions per gram ; moisture content in percentage, 

 dry basis; temperature in degrees Centigrade, 

 average per week. 



