
    No. 531.
    UNA Chapter, Flight Engineers’ International Assn., AFL-CIO, v. National Mediation Board et al.
    
      I. J. Gromfine, Herman Sternstein and Isaac N. Groner for petitioner. Solicitor General Cox, Assistant Attorney General Orrick and Morton Hollander for the National Mediation Board; Clarence M. Mulholland, Richard R. Lyman and Edward J. Hickey, Jr. for the Railway Labor Executives’ Assn.; Robert L. Stern for United Air Lines, Inc.; Samuel J. Cohen and Benedict F. Fitzgerald, Jr. for Air Line Pilots Assn., International; and Andrew G. Haley and J. Roger Wollenberg for Richard L. Keller et al., respondents.
   Motion of the Railway Labor Executives’ Assn, for leave to file brief, as amicus curiae, granted. Petition for writ of certiorari to the United States Court of Appeals for the District of Columbia Circuit denied.  