U.S. Supreme Court May 1918 casesPerlman v. United StatesChicago Alton R.R. Co. v. United StatesDoyle v. Mitchell Brothers Co.United States v. Biwabik Mining Co.Shepard v. BarkleyHays v. Gauley Mt. Coal Co.McGinis v. CaliforniaUnion Pac. R.R. Co. v. LaughlinGasquet v. FennerUnited States v. United Shoe Mach. Co.Erie Railroad v. HiltMarin v. AugedahlLooney v. Eastern Texas R.R. Co.