No. 15524. October 18, 1956. Rehearing Denied November 16, 1956. Samuel M. Singer, Atty., N.L.R.B., Washington, D.C. (Theophil C. Kammholz, Gen. Counsel, David P. Findling, Associate Gen. Counsel, Marcel Mallet-Prevost, Asst. Gen. Counsel, and Nancy M. Sherman, Atty., N.L.R.B., Washington, D.C., were with him on the brief), for petitioner. John J. Hasburgh, Kansas City, Mo. (Carl E. Enggas and Watson S. Marshall Enggas, Kansas City, Mo., were with him on the brief), for respondent. Before WOODROUGH