Summary judgment in favor of the appellees is affirmed on the basis of the District Court’s opinion as published in 234 F.Supp. 930 and this court’s opinions in Continental Casualty Co. v. United States for the use of Robertson Lumber Co., 8 Cir., 1962, 305 F.2d 794, certiorari denied, 371 U.S. 922, 83 S.Ct. 290, 9 L.Ed.2d 231; Continental Casualty Company v. Allsop Lumber Co., Inc., 8 Cir., *614 1964, 336 F.2d 445, certiorari denied 85 S.Ct. 662; Koppers Company v. Continental Casualty Company, 8 Cir., 1964, 337 F.2d 499; and Missouri-IIlinois Tractor & Equipment Co. v. D & L Const. Co. & Associates, et al., 8 Cir., 1964, 337 F.2d 507.