
    No. 842.
    National Federation of Railway Workers v. National Mediation Board et al.
    May 6, 1940.
    
      Messrs. James A. Cobb and Perry W. Howard for petitioner.
    
      Solicitor General Biddle, Assistant Attorney General Arnold, and Messrs. Robert L. Stern and Thomas E. Harris for respondents.
   Petition for writ of certiorari to the Court of Appeals for the District of Columbia denied.  