Having annexed these new and extraordinary conditions to the act for the admission of Louisiana into the Union, Congress may, if they shall deem it expedient, annex the like conditions to the act for the admission of Missouri; and, moreover, as in the case of Ohio, Indiana, and Illinois, provide by an article for that purpose, that slavery shall not exist within the same. Admitting this construction of the Constitution, it is alleged that the power by which Congress excluded slavery from the States north-west of the river Ohio, is suspended in respect to the States that may be formed in the province of Louisiana. The article of the treaty referred to declares: "That the inhabitants of the territory shall be incorporated in the Union of the United States, and admitted as soon as possible; according to the principles of the Federal Constitution, to the enjoyment of all rights, advantages, and immunities of citizens of the United States; and in the meantime, they shall be maintained and protected in the free enjoyment of their liberty, property, and the religion which they profess." Although there is want of precision in the article, its scope and meaning can not be misunderstood. It constitutes a stipulation by which the United States engage that the inhabitants of Louisiana should be formed into a State or States, and as soon as the provisions of the Constitution permit, that they should be admitted as new States into the Union on the footing of the other States; and before such admission, and during their territorial government, that they should be maintained and protected by Congress in the enjoyment of their liberty, property, and religion. The first clause of this stipulation will be executed by the admission of Missouri as a new State into the Union, as such admission will impart to the inhabitants of Missouri "all the rights, advantages, and immunities" which citizens of the United States derive from the Constitution thereof; these rights may be denominated Federal rights, are uniform throughout the Union, and are common to all its citizens: but the rights derived from the Constitution and laws of the States, which may be denominated State rights, in many particulars differ from each other. Thus, while the Federal rights of the citizens of Massachusetts and Virginia are the same, their State rights are dissimilar and different, slavery being forbidden in one, and permitted in the other State. This difference arises out of the Constitutions and laws of the two States, in the same manner as the difference in the rights of the citizens of these States to vote for representatives in Congress arises out of the State laws and Constitution. In Massachusetts, every person of lawful age, and possessing property of any sort, of the value of two hundred dollars, may vote for representatives to Congress. In Virginia, no person can vote for representatives to Congress, unless he be a freeholder. As the admission