
    No. 78-6601.
    No. 78-6689.
    No. 78-6851.
    No. 78-6869.
    No. 78-6918.
    No. 79-5018.
    No. 79-5019.
    Nelson v. United States, Gehring v. Crist, Warden, Powell v. Graddick, Attorney General of Alabama, et al., Tilli v. Pennsylvania, Hegwood v. Landry et al., Udell v. State Department of Massachusetts et al., Potemra v. Ping et al.,
   ante, p. 847;

ante, p. 851 ;

ante, p. 859;

ante, p. 860;

ante, p. 862;

ante, p. 872; and

ante, p. 872. Petitions for rehearing denied.  