
    No. 77-557.
    No. 77-606.
    No. 77-622.
    Consolidation Coal Co. v. United States; Marks v. United States; and Zitko v. United States.
   C. A. 6th Cir. Certiorari granted, judgment vacated, and cases remanded for further consideration in light of Marshall v. Barlow’s, Inc., ante, p. 307; and Michigan v. Tyler, ante, p. 499.  