No. 75-1411. Argued March 4, 1976. Decided June 10, 1976. William G. Meserve, Boston, Mass., with whom John V. Woodard and Ropes Gray, Boston, Mass., were on brief, for petitioner. David F. Zorensky, Washington, D.C., Atty., with whom John S. Irving, Jr., Gen. Counsel, John E. Higgins, Jr., Deputy Gen. Counsel, Elliott Moore, Deputy Associate Gen. Counsel, and Aileen Armstrong, Atty., Washington, D.C., were on brief, for respondent. Before ALDRICH, McENTEE and CAMPBELL, Circuit Judges. ON PETITION