240 



Bacteria in Relation to Country Life 



quently sufficient to improve the soil very materially. 

 Unfortunately, however, much of the valuable experi- 

 ence of the ancients was lost in the succeeding centuries, 

 and European agriculture of the Dark Ages, like Euro- 

 pean culture of the Dark Ages, was marked for its de- 



r ]g. 40 iJ'ield peas, limed and well manured, showing an abundance of tubercles 



