A certificate of the Court of Appeals certifying to this Court, under 28 U.S.C. § 1254 (3), questions concerning the validity of a regulation of the Civil Aeronautics Board is dismissed on the authority of cases cited in the opinion; and an application of the Board for an order requiring the Court of Appeals to send up the entire record, thus bringing up "the entire matter in controversy" for decision, is denied. Pp. 4-5.