12 
BULLETIN 1309, U. S. DEPARTMENT OF AGRICULTURE 
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Fig. 3.— Heads of winter-wheat varieties grown at the Arlington Experiment Farm. Left to right: 
Rocky Mountain, Shepherd, Purplestraw, Mammoth Red 
Fig. 4.— Wheat plats at the Arlington Experiment Farm in 1922: Purplestraw, C. I. No. 1915, on the 
left and Red Rock on the right. Each of these plats yielded more than 30 bushels to the acre 
