Coal. No. 3771, Stonega Coke & Coal Company v. Louisville & Nashville Railroad Company et al.; investigation and suspension no. 71, coal and coke rates; investigation and suspension no. 321, coal rates from Virginia mines; investigation and suspension no. 625, coke from Virginia points; investigation and suspension no. 633, coal from Virginia mines; decided May 23, 1916; [supplemental report and orders of commission].