Bui. 561, U. S. Dept. of Agriculture. 



Plate II. 



Fig. 1.— Pen 6, Mixed Pen of General-Purpose Breeds. 



On free range; fed a scratch mixture containing barley, and had beef scrap separate from the mash. 



Fig. 2.— Pen 7, White Leghorns. 

 Confined to yard; allowed to select their own mash. 



