
    No. 83-1457.
    No. 83-1617.
    No. 83-6514.
    No. 83-6629.
    Rivera-Ramirez v. United States, Coleman v. American Cyanamid Co. et al., Tilli v. Capobianco et al., Kavanaugh v. Sperry Univac,
   467 U. S. 1215;

467 U. S. 1215;

467 U. S. 1217; and

467 U. S. 1218. Petitions for rehearing denied.  