Nos. 71-1402, 71-1591. June 19, 1972. John M. Bee, New Orleans, La., Frank S. Manitzas, San Antonio, Tex., Glenn E. Bandelin, Sandpoint, Idaho, for petitioner, Emerald Maintenance, Inc.; Clemens, Knight, Weiss Spencer, San Antonio, Tex., Bandelin Swanstrom, Sandpoint, Idaho, of counsel. Marcel Mallet-Prevost, Asst. Gen. Counsel, N.L.R.B., Washington, D.C., Clifford Potter, Director, Region 23, N.L.R.B., Houston, Tex., Nancy M. Sherman, N.L.R.B., Washington, D.C., Eugene G. Goslee, Acting Gen. Counsel