The decree of dismissal by the specially constituted District trict Court is affirmed. Standard Oil Company (Indiana) v. The United States of America et al. (decided April 13, 1931), 283 U.S. 163, 51 S. Ct. 421, 75 L. Ed. 926; United States v. Louisville & Nashville R. R. Co., 235 U.S. 314, 320, 35 S. Ct. 113, 59 L. Ed. 245; Interstate Commerce Commission v. Delaware, Lackawanna & Western R. R. Co., 220 U.S. 235, 251, 31 S. Ct. 392, 55 L. Ed. 448; Interstate Commerce Commission v. Illinois Central R. R. Co., 215 U.S. 452, 470, 30 S. Ct. 155, 54 L. Ed. 280; Baltimore & Ohio R. R. Co. v. United States ex rel. Pitcairn Coal Co., 215 U.S. 481, 494, 30 S. Ct. 164, 54 L. Ed. 292.