Appellant having failed to object to the argument now contended to having been prejudicial, and no plain error or abdication of function by the District Judge appearing, the judgment appealed from is affirmed. Maryland Casualty Co. v. Reid, 5th Cir., 1935, 76 F.2d 30; Louisiana & Arkansas Ry. Co. v. Johnson, 5th Cir., 1954, 214 F.2d 290, cert. den. 1954, 348 U.S. 875, 75 S.Ct. 111, 99 L.Ed. 688; Ford v. United Gas Corp., 5th Cir., 1958, 254 F.2d 817, cert. den. 358 U.S. 824, 79 S.Ct. 40, 3 L.Ed.2d 64.