M. B. Johnson and others filed an adverse claim against Daniel Munday to enter the Claire Maire and Maggie M. lode-mining claims in the land office at Denver, Colo., and brought an action at law in the United States circuit court in support of their adverse claim. A demurrer to the complaint in the action at law was sustained, whereupon the court, for some reason not disclosed by the record, ordered that the plaintiffs have “leave to file a bill in equity asserting title to the premises in controversy.” Thereupon, the plaintiffs filed their bill in equity in this suit. The defendant demurred to the bill upon the ground, among others, that: “The matters, and things set out in said bill of complaint, and for which relief is sought, are not cognizable in a court of equity.” This demurrer was overruled, and the question raised by it is the only one we find it necessary to consider. The bill sets up and counts on a purely legal title to the premises in controversy acquired by the purchase of the same at sheriff’s sale. No ground of equitable cognizance is alleged or shown. It is an ejectment bill puré and simple. It states a good cause of action at law, but not one within the jurisdiction of a court of equity. The bill rests the jurisdiction of the court in the action upon the diverse citizenship of the parties, and also upon the ground that an action in support of an adverse claim is one arising under the laws of the United States, of which the federal court has jurisdiction regardless of the citizenship of the parties; but since the decisions of the supreme court in tixe cases of Blackburn v. Mining Co., 175 U. S. 571, 20 Sup. Ct. 222, 44 L. Ed. 276, and Mining Co. v. Rutter, 177 U. S. 505, 20 Sup. Ct. 726, 44 L. Ed. 864, the last ground upon which the jurisdiction is claimed is untenable. The decree of the circuit court is *595reversed, and the cause remanded, with instructions to that court to dismiss the hill for want of jurisdiction in equity, without prejudice to the complainants’ right to assert their claim at law.