9 6 



AGRICULTURE 



beneficial in making the soil mellow and able to hold mois 

 ture. These cannot be bought in commercial fertilizers, 

 which increase the crops chiefly in the year in which they 

 are used. Stable manure makes the soil richer for a 

 number of years. 



FIG. 61. GOOD TILLAGE, MAKING GOOD FERTILIZING PROFITABLE 

 Note, on the left, that the peach trees are set on contours or terraces. 



