10. The plaintiff having admitted, by his demurrer to the plea in abatement, that his ancestors were imported from Africa and sold as slaves, he is not a citizen of the state of Missouri according to the Constitution of the United States, and was not entitled to sue in that character in the Circuit Court.
11. This being the case, the judgment of the court below, in favor of the plaintiff on the plea in abatement, was erroneous.
II.
1. But if the plea in abatement is not brought up by this writ of error, the objection to the citizenship of the plaintiff is still apparent on the record, as he himself, in making oat his case, states that he is of African descent, was born a slave, and claims that he and his family became entitled to freedom by being taken, by their owner, to reside in a territory where slavery is prohibited by act of congress—and that, in addition to this claim, he himself became entitled to freedom by being taken to Rock Island, in the state of Illinois—and being free when he was brought back to Missouri, he was by the laws of that state a citizen.
2. If, therefore, the facts he states do not give him or his family a right to freedom, the plaintiff is still a slave, and not entitled to sue as a "citizen," and the judgment of the Circuit Court was erroneous on that ground also, without any reference to the plea in abatement.
3. The Circuit Court can give no judgment for plaintiff or defendant in a case where it has not jurisdiction, no matter whether there be a plea in abatement or not. And unless it appears upon the face of the record, when brought here by writ of error, that the Circuit Court had jurisdiction, the judgment must be reversed.
4. When the record, as brought here by writ of error, does not show that the Circuit Court had jurisdiction, this court has jurisdiction to revise and correct the error, like any other error in the court below. It does not and cannot dismiss the case for want of jurisdiction here; for that would leave the erroneous judgment of the court below in full force, and the party injured without remedy. But it must reverse the judgment, and, as in any other case of reversal, send a mandate to the Circuit Court to conform its judgment to the opinion of this court.
5. The difference of the jurisdiction in this court in the cases of writs of error to state courts and to Circuit Courts of the United States, pointed out; and the mistakes made as to the jurisdiction of this court in the latter case, by confounding it with its limited jurisdiction in the former.
6. If the court reverses a judgment upon the ground that it appears by a particular part of the record that the Circuit Court had not jurisdiction, it does not take away the jurisdiction of this court to examine into and correct, by a reversal of the judgment, any other errors, either as to the jurisdiction or any other matter, where it appears from other parts of the record that the Circuit Court had fallen into error. On the contrary, it is the daily and familiar practice of this court to reverse on several grounds, where more than one error ap-
