Now, as the domicil of Scott was in the State of Missouri, where he was a slave, and from whence he was taken by his master into Illinois for a temporary residence, according to the doctrine of Huberus, the law of his domicil would have accompanied him, and during his residence there he would remain in the same condition as in the State of Missouri. In order to have given effect to the rule, as claimed in the argument, it should have been first shown that a domicil had been acquired in the free State, which cannot be pretended upon the agreed facts in the case. But the true answer to the doctrine of Huberus is, that the rule, in any aspect in which it may be viewed, has no bearing upon either side of the question before us, even if conceded to the extent laid down by the author; for he admits that foreign Governments give effect to these laws of the domicil no further than they are consistent with their own laws, and not prejudicial to their own subjects; in other words, their force and effect depend upon the law of comity of the foreign Government. We should add, also, that this general rule of Huberus, referred to, has not been admitted in the practice of nations, nor is it sanctioned by the most approved jurists of international law. (Story Con., sec. 91, 96, 103, 104; 2 Kent. Com., p. 457, 458; 1 Burge Con. Laws, pp. 12, 127.) We come now to the decision of this court in the case of Strader et al. _v._ Graham, (10 How., p. 2.) The case came up from the Court of Appeals, in the State of Kentucky. The question in the case was, whether certain slaves of Graham, a resident of Kentucky, who had been employed temporarily at several places in the State of Ohio, with their master's consent, and had returned to Kentucky into his service, had thereby become entitled to their freedom. The Court of Appeals held that they had not. The case was brought to this court under the twenty-fifth section of the judiciary act. This court held that it had no jurisdiction, for the reason, the question was one that belonged exclusively to the State of Kentucky. The Chief Justice, in delivering the opinion of the court, observed that "every State has an undoubted right to determine the status or domestic and social condition of the persons domiciled within its territory, except in so far as the powers of the States in this respect are restrained, or duties and obligations imposed upon them, by the Constitution of the United States. There is nothing in the Constitution of the United States, he observes, that can in any degree control the law of Kentucky upon this subject. And the condition of the negroes, therefore, as to freedom or slavery, after their return, depended altogether upon the laws of that State, and could not be influenced by the laws of Ohio. It was exclusively in the power of Kentucky to determine, for herself, whether their employment in another State should or should not make them free on their return."