No. 5568. Heard February 2, 1960. Decided May 3, 1960. George L. Weasler, Santurce, P.R., with whom Fiddler, Gonzalez, Guillemard Rodriguez, San Juan, P.R., was on the brief, for petitioners. Fannie M. Boyls, Attorney, with whom Stuart Rothman, General Counsel, Thomas J. McDermott, Associate General Counsel, Marcel Mallet-Prevost, Assistant General Counsel, and William J. Avrutis, Attorney, Washington, D.C., were on brief, for respondent. Before WOODBURY, Chief Judge, and HARTIGAN and ALDRICH, Circuit