Sidney Ooldstein, Francis A. Mulhern, Arthur L. Winn, Jr., J. Stanley Payne and Samuel H. Moerman for appellants in No. 465.
Robert D. Brooks and Richard J. Murphy for appellant in No. 466.
John F. Donelan for appellants in No. 467.
Warren Price, Jr. for the Delaware River Port Authority, David Berger for the City of Philadelphia, and Frederick H. Knight for the Chamber of Commerce of Greater Philadelphia, appellants in No. 468.
Solicitor General Rankin, Assistant Attorney General Hansen and Daniel M. Friedman for the United States, appellant in No. 473.
Edwin H. Burgess, Anthony P. Donadio, Norman C. Melvin, Jr., William C. Purnell and Jervis Langdon, Jr. for the Baltimore & Ohio Railroad Co. et al., William L. Marbury for the Maryland Port Authority, Harry C. Ames and Charles McD. Gillan for the Baltimore Association of Commerce, Francis D. Murnaghan, Jr. for the Canton Railroad Co. and Thomas N. Biddison for the Mayor and City Council of Baltimore, appellees.
This litigation involves the validity of an order of the Interstate Commerce Commission dealing with the proper relationship, under the National Transportation Policy (§ 1 of the Transportation Act of 1940, 54 Stat. 899 , 49 U. S. C., at p. 7107), of railroad tariffs on imported iron ore shipped to a steel-producing area in Pennsylvania, Ohio and West Virginia (the so-called “differential territory” of the Central Freight Association) from the ports of New York, Philadelphia and Baltimore. A tariff differential in favor of Baltimore had existed prior to this