PER CURIAM:
The decision of the District Court in this case is reported at 310 F. Supp. 517.
We affirm. Rules 18 and 21 of this Court. See Isbell Enterprises, Inc. v. Citizens Casualty Co. of New York, 5 Cir., 1970, 431 F.2d 409 and N.L.R.B. v. Amalgamated Clothing Workers of America, 5 Cir., 1970, 430 F.2d 966.
Affirmed.