imposes upon the county commissioners the duty of refunding, without abatement or discount, taxes which have been paid and are found-to be illegal, and confers upon the taxpayer a correlative right to enforce that duty by an action at law. As long ago as 1879 the Supreme Court of the State, in holding that the. in validity of a tax afforded no ground for enjoining its enforcement, said of this statute: “Against an illegal tax complainant has a full and adequate remedy at law, and we see no reason why in this case he should not be remitted to that remedy.” Price v. Kramer, 4 Colorado, 546, 555. And again: “The statute furnishes another remedy .in such cases which is complete and adequate.” Woodward v. Ellsworth, Id. 580, 581. And that this view of the statuté still prevails is shown in Hallett v. Arapahoe County, 40 Colorado, 308, 318, decided in 1907, where, in refusing equitable relief against the collection of taxes alleged to be illegal, the court said (p. 318): “By § 3777, 2 Mills’ Ann. Stat., itis -provided that taxes paid which shall thereafter be found to be erroneous or illegal, shall be refunded, without abatement or discount, to the taxpayer. No,statement appears in either of the coinplaints from which it can be deduced that the remedjq afforded the plaintiff by this section is not adequate.”
We refer to these cases, not as defining the jurisdiction in equity of the Circuit Court, for that they could not do (Payne v. Hook, 7 Wall. 425, 430; Whitehead v. Shattuck, 138 U. S. 146; Smythe v. Ames, 169 U. S. 466, 516), but as showing that the Colorado statute gave to one who should pay illegal taxes a right to recover back from the county the money so paid. .This right was one which could be enforced-by an action at law in the Circuit Court, no less than in the state courts, if the elements of Federal jurisdiction, such as diverse citizenship and the requisite amount in controversy, were present. Ex parte McNiel, 13 Wall. 236, 243; United States Mining Co. v. Lawson,