
    No. 75-1473.
    No. 75-1705.
    E. I. du Pont de Nemours & Co. et al. v. Train, Administrator, Environmental Protection Agency; and Train, Administrator, Environmental Protection Agency v. E. I. du Pont de Nemours & Co. et al.
   C. A. 4th Cir. [Certiorari granted, 426 U. S. 947.] Motion of Appalachian Power Co. et al. for leave to file a brief as amid curiae granted.

Mr. Justice Powell took no part in the consideration or decision of this motion.  