No. 10472. Argued October 4, 1951. Filed November 7, 1951. Dominick L. Manoli, Washington, D.C., (George J. Bott, Gen. Counsel, David P. Findling, Associate Gen. Counsel, A. Norman Somers, Assistant Gen. Counsel, and Thomas F. Maher, all of Washington, D.C., on the brief), for petitioner. Marvin C. Wahl, Baltimore, Md. (Blanche Genauer Wahl, Baltimore, Md., on the brief), for respondent. Before McLAUGHLIN, STALEY, and HASTIE, Circuit Judges. HASTIE, Circuit Judge. Two principal contentions are advanced