Atchison, Topeka and Santa Fe Railway. Nos. 883, 928, 884, 929, in Supreme Court, Oct. term, 1911, United States v. Atchison, Topeka & Santa Fe Railway Company and 16 other railroad companies; [same] v. Union Pacific Railroad Company and 10 other railroad companies, intermountain rate cases, appeals from Commerce Court; brief and argument on behalf of United States.