
    No. 78-685.
    Aberdeen & Rockfish Railroad Co. et al. v. United States et al.
   C. A. D. C. Cir. Motions of PPG Industries, Fort Howard Paper Co., and Allied Chemical Corp. et al. for leave to intervene denied. Certiorari denied.

Mr. Justice Powell took no part in the consideration or decision of these motions and this petition.  