
    No. 74-549.
    No. 74-709.
    No. 74-710.
    Allied Pilots Assn. v. Civil Aeronautics Board et al.; Air Line Dispatchers’ Assn. et al. v. Civil Aeronautics Board et al.; and Air Line Pilots Assn., International v. Civil Aeronautics Board et al.
   C. A. D. C. Cir. Certiorari denied. Reported below: 163 U. S. App. D. C. 451, 502 F. 2d 453.  