
    No. 74-926.
    No. 74-930.
    No. 74-5964.
    No. 74-6034.
    City of Pittsburgh v. Public Parking Authority of Pittsburgh et al., Illinois et al. v. Federal Power Commission et al., Olenz v. Cleary et al., White v. Michigan State University,
   ante, p. 912;

ante, p. 912;

420 U. S. 994; and

ante, p. 918. Petitions for rehearing denied.

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