or its application to the shipments; and consignee’s liability was frilly discharged upon payment by him of amount demanded at time of. delivery and surrender of the carrier’s lien.
“Cases arising under the laws of the United States are such as grow out of the-legislation of^Congress.” Tennessee v. Davis, 100 U. S. 257, 264. “ Whether a party claims a righbunder the Constitution or laws of the United States is to be ascertained by the legal construction of its own allegations.” Central R. R. Co. of New Jersey v. Mills, 113 U. S. 219, 257. “If the plaintiff really makes a substantial claim under an act of Congress there is juris-" diction whether the claim ultimately be held good or bad.” The Fair v. Kohler Die Co., 228 U. S. 22, 25. A suit arises under an act of Congress when “it really and substantially involves a dispute or controversy respecting the validity, construction or effect of such a. law, upon the-determination of which the result /depends.” Shulthis v. McDougal, 225 U. S. 561, 569. As to interstate shipments “there can be no question that, since the decision in the Croninger Case [226 U. S. 491], the parties are held" to the responsibilities imposed by the federal law, to the exclusion of all other rules of obligation.” St. Louis, Iron Mountain & Southern Ry. Co. v. Starbird, 243 U. S. 592, 595; Louisville & Nashville R. R. Co. v. Maxwell, 237 U. S. 94, 97.
The railroad company set up a claim based upon provisions of a tariff duly filed, published and approved as required by Interstate Commerce Act; result of the action necessarily depended upon construction and effect of that act.
We think the District Court had jurisdiction. Its judgment is accordingly reversed and the cause remanded for further proceedings in conformity with this opinion.
Reversed.