
    No. 81-150.
    No. 81-546.
    Northern Pipeline Construction Co. v. Marathon Pipe Line Co. et al.; and United States v. Marathon Pipe Line Co. et al.
   D. C. Minn. [Probable jurisdiction noted, 454 U. S. 1029.] Motion of Beneficial Corp. for leave to participate in oral argument as amicus curiae and for additional time for oral argument denied. Motion of Commercial Law League of America to reconsider order denying motion for leave to participate in oral argument as amicus curiae denied.  