
    No. 520.
    United Gas Pipe Line Co. v. Tyler Gas Service Co. et al.
    
      Thomas Fletcher and C. Huffman Lewis for petitioner. Bryce Rea, Jr., Thomas B. Ramey and Troy Smith for respondents.
   United States Court of Appeals for the District of Columbia Circuit. Motion for leave to file brief of McMurrey Refining Co., as amicus curiae, denied. Certiorari denied.  