after making the foregoing statement, delivered the opinion of the court.
The constitutionality of the exemption law of Indiana was apparently the only question raised by the parties. It was argued elaborately, both in the Circuit and Supreme Court of the State, and was finally affirmed by a majority of the latter court. The power of the county auditor, who is charged .by law with the duty of making the assessment, to refuse to allow - the relators their, exemption upon the ground of the unconstitutionality of the act, does not appear to have been raised in the state courts, and is not noticed in either opinion of the Supreme Court. In fact, the celerity of the proceedings and the admissions of counsel indicate that the suit was begun and carried on for the purpose of testing the constitutionality of the law,- and that the litigation was at least not an unfriendly one.
We have no ■ doubt of the power of state courts to assume jurisdiction of the case if they choose to do so, although there are many authorities to the effect that a ministerial officer, charged by law with the duty of enforcing a certain statute, cannot refuse to perform his' plain duty thereunder upon the ground that in his opinion it is repugnant to the Constitution.
It is but just to say, however, that the power of a public officer to question the constitutionality of a statute as an excuse for refusing to enforce it has often been assumed, and sometimes directly .decided, to exist. In any event, it is a purely local question, and seems to have been so treated by this court in
Huntington
v.
Worthen,
Different considerations, however, apply to the jurisdiction of this court, which we have recently held can only be invoked by a party having a personal interest in the litigation. It follows that he cannot sue out a writ of error in behalf of third persons.
Tyler
v.
Judges of Court, of Registration,
It is true there seems to have been a personal judgment in form against the defendant for costs, the amount of which, however, has never been taxed, and when taxed and paid would probably be reimbursed to him. It was formerly held, under the practice which disqualified interested witnesses, that a liability for costs was sufficient to render a witness incompetent. 1 Greenl. Ev. secs. 401, 402. "But it seems to be well settled that even if the fact that costs - are awarded against a party, gives him an appealable interest, of which there appears to be considerable doubt,
Travis
v.
Waters,
The fact that the .-various statutes fixing the jurisdiction of *150 the Circuit Courts of the United States, and of this court, which from the original Judiciary Act of 1789 have, where the amount involved was made the test' of jurisdiction, uniformly used the words “exclusive of costs,” would indicate, so far as the Federal courts are concerned, that a mere judgment for costs could not ordinarily be made the basis of an appeal to this court.
For the. reasons above given, the appellant did not.have the requisite interest to maintain this appeal, and it is therefore
Dismissed.
