Mill Creek and Minehill Navigation and Railroad Company. Nos. 103-105, in Supreme Court, Oct. term, 1919, United States v. Mill Creek & Minehill Navigation & Railroad Company, to use of Philadelphia & Reading Railway Company, and [same] v. North Pennsylvania Railroad Company, to use of Philadelphia & Reading Railway Company, and [same] v. Delaware & Bound Brook Railroad Company, to use of Philadelphia & Reading Railway Company, in error to district court for eastern district of Pennsylvania; supplemental brief for United States.