Ex parte Massachusetts/Opinion of the Court
This court has no original jurisdiction over this controversy, in any view, because it is not a controversy between a state and a citizen of another state. Hepburn v. Ellzey, 2 Cranch, 445, 2 L. ed. 332; Hooe v. Jamieson, 166 U.S. 395, 41 L. ed. 1049, 17 Sup. Ct. Rep. 596. And it has not appellate jurisdiction, because, since the passage of the act of February 9, 1893 (27 Stat. at L. 434, chap. 74), establishing the court of appeals for the District of Columbia, this court, generally speaking, and not including cases arising under the bankruptcy law (Audubon v. Shufeldt, 181 U.S. 575, 45 L. ed. 1009, 21 Sup. Ct. Rep. 735), cannot review the judgments and decrees of the supreme court of the District, directly by appeal or writ of error.

By § 716 of the Revised Statutes, U.S.C.omp. Stat. 1901, p. 580, this court and the circuit and the district courts 'have power to issue all writs not specially provided for by statute, which may be necessary for the exercise of their respective jurisdictions, and agreeable to the usages and principles of law.'

By § 688, U.S.C.omp. Stat. 1901, p. 565, prohibition may issue 'to the district courts when proceeding as courts of admiralty and maritime jurisdiction,' but there is no similar provision in respect of other courts. And it has been repeatedly held, as to the circuit courts, that they have no power, under § 716, to issue writs of prohibition and mandamus, except when necessary in the exercise of their existing jurisdiction. Bath County v. Amy, 13 Wall. 248, 20 L. ed. 541; M'Clung v. Silliman, 6 Wheat. 601, 5 L. ed. 341.

This is equally true of this court; that is to say, that in cases over which we possess neither original nor appellate jurisdiction we cannot grant prohibition or mandamus or certiorari as ancillary thereto.

Rule discharged; petition denied. 

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