
    No. 75-1046.
    No. 75-1056.
    No. 75-1059.
    Barrett et al. v. Zweibon et al.; Zweibon et al. v. Mitchell et al.; and Mitchell v. Zweibon et al.
   C. A. D. C. Cir. Certiorari denied.

Mr. Justice Rehnquist took no part in the consideration or decision of these petitions.

Reported below: 170 U. S. App. D. C. 1, 516 F. 2d 594.  