CORX TILLAGE 



165 



Fig. 80.-- a Disk-plow. 

 The disk which turns the soil shows only dimly beyond the frame. 



made of a double moldlioard plow or "middle burster," and, in the 

 semi-arid Southwest, of a somewhat similar "lister." Doubtless 

 some of the labor-saving implements of the latter region, such as 

 "listers" and "combined listers and planters" fFig. 81) could be 

 effectively used on sandy soils in the South. Various forms of 



Fig. 81. — Combined Lister and Cobn Pl.^nter. 



