
    No. 75-734.
    No. 75-1501.
    No. 75-6922.
    No. 76-5030.
    No. 76-5078.
    Smith et al. v. Troyan et al., Ivey et al. v. United States, Mason et al. v. Belieu et al., Blackburn v. Florida, Manning v. Princeton Consumer Discount Co., Inc., et al.,
   426 U. S. 934;

ante, p. 818;

ante, p. 852;

ante, p. 864; and

ante, p. 865. Petitions for rehearing denied.  