
    No. 75-869.
    No. 75-5984.
    No. 75-6228.
    Roberts v. Civil Aeronautics Board, Baker v. Rumsfeld, Secretary of Defense, Pogue v. Government Employees Insurance Co.,
   424 U. S. 966;

424 U. S. 972; and

ante, p. 915. Petitions for rehearing denied.  