110 RECLAIMING LOST NITROGEN. 



the air. But by proper treatment this loss can be reduced to 

 a minimum and there may always be a surplus of gain. Even 

 taking into account all the nitrogen loss that comes from these 

 processes the use of a leguminous crop upon a soil poor in nitrogen 

 furnishes to that soil for the next crop a store of nitrogen considerably 

 in excess of that which it possessed before. 



