No. 15874. June 5, 1956. Marcel Mallet-Prevost, Asst. Gen. Counsel, N.L.R.B., David P. Findling, Associate Gen. Counsel, Washington, D.C., Allen P. Schoolfield, Jr., Atty., Fort Worth, Tex., Theophil C. Kammholz, Gen. Counsel, Owsley Vose, John Francis Lawless, Attys., N.L.R.B., Washington, D.C., for petitioner. L.N.D. Wells, Jr., Mullinax Wells, Dallas, Tex., for respondents. Before TUTTLE, CAMERON and JONES, Circuit Judges. CAMERON, Circuit Judge. The National Labor Relations Board petitions for