opinion: AMERICAN AIRLINES, INC., v. NORTH AMERICAN AIRLINES, INC., et al.
  No. 55.
  Argued January 30, 1958.
  Decided February 3, 1958.
  Howard C. Westwood argued the cause and filed a brief for petitioner.
  O.D. Ozment argued the cause for the Civil Aeronautics Board, respondent. With him on the brief were Solicitor General Rankin, Assistant Attorney General Hansen, Daniel M. Friedman, Franklin M. Stone and Robert L. Toomey.
  No appearance fpr North American Airlines, Inc., respondent.
  Per Curiam.
  The judgment is reversed insofar as it set aside the Board’s order. American Airlines, Inc., v. North American Airlines, Inc., 351 U. S. 79.
  Mr. Justice Douglas dissents.