246 SCHOOL AND HOME GARDENS 
given between the rows. Beans, because of bacteria which 
live in the small tubercles on their roots, have the power 
of obtaining nitrogen from the air which is in the soil. 
Planting. Beans cannot endure frost, but it pays to 
take some risk. By planting a few as soon as there is 
Fic, 138. Planting Bush Beans 
some degree of certainty that they will not be taken by 
the late frost, and then repeating the planting every two 
weeks, a succession may be obtained that will provide a 
supply during the greater part of the summer. 
Plant dwarf or bush beans in rows two feet apart. 
Scatter the seeds so that they will be about two inches 
apart, and cover to a depth of two inches. Press the soil 
