Grain. Handbook of official grain standards of United States, standards for wheat, barley, oats, feed oats, mixed feed oats, rye, and mixed grain, effective July 2, 1934, for flaxseed, effective Aug. 1, 1934, and for corn and grain sorghums, effective Sept. 1, 1934, with amendments to standards for smutty wheat, smutty rye, and smutty mixed grain, effective July 25, 1934, important features of grain inspection; prepared by Grain Division.