Bui. 321, U. S. Dept. cf Agriculture. 



Plate 



Fig. 1 .—Worm Rail Fences are Rapidly Being Replaced by Woven-Wire Fences. 



Fig. 2.— Stone Walls Form a Harbor for Animals and Insects as well as for 

 Brush and Weeds. On Account of the Large Amount of Labor Required 

 in Their Construction They are Very Costly. 



