See the decisions of the Commerce Court on the Long and Short-Haul Clause. Atchison, T.&S.F. By. v. United States, 191 Federal Rep. 856.
Darcy v. Allein, 11 Rep. 84.
68 Pa. 173.
The relation of courts to legislation in European countries has been pretty fully considered by Brinton Coxe, in Judicial Power and Constitutional Legislation.
Federalist No. LXXVIII.