It has been stated at the bar that the appellate jurisdiction may be exercised in a variety of forms, and that if it be the will of the legislature that a mandamus should be used for that purpose, that will must be obeyed. This is true; yet the jurisdiction must be appellate, not original.
It is the essential criterion of appellate jurisdiction, that it revises and corrects the proceedings in a cause already instituted, and does not create that case. Although, therefore, a mandamus may be directed to courts, yet to issue such a writ to an officer for the delivery of a paper, is in effect the same as to sustain an original action for that paper, and therefore seems not to belong to [5 U.S. 137, 176] appellate, but to original jurisdiction. Neither is it necessary in such a case as this, to enable the court to exercise its appellate jurisdiction.
The authority, therefore, given to the supreme court, by the act establishing the judicial courts of the United States, to issue writs of mandamus to public officers, appears not to be warranted by the constitution; and it becomes necessary to inquire whether a jurisdiction, so conferred, can be exercised.