
    No. 157.
    No. 158.
    No. 159.
    Civil Aeronautics Board v. State Airlines, Inc.; State Airlines, Inc. v. Civil Aeronautics Board et al.; and Piedmont Aviation, Inc. v. State Airlines, Inc.
    
      Solicitor General Perlman and Emory T. Nunneley, Jr. for petitioner in No. 157, and on a brief in No. 159 for the Civil Aeronautics Board, as amicus curiae, supporting the petition. Frederick W. P. Lorenzen and Philip Schleit for State Airlines, Inc., petitioner in No. 158 and respondent in Nos. 157 and 159. Charles H. Murchison for Piedmont Aviation, Inc., petitioner in No. 159 and respondent in No. 158.
   United States Court of Appeals for the District of Columbia Circuit. Certiorari granted.  