“ARTICLE 4. The said Territory, and the States which may be formed therein, shall forever remain a part of this confederacy of the United States of America, subject to the articles of confederation, and to such alterations therein as shall be constitutionally made, and to all the acts and ordinances of the United States in Congress assembled, conformable thereto. The inhabitants and settlers in said Territory shall be subject to pay a part of the Federal debts, contracted or to be contracted, and a proportional part of the expenses of government, to be apportioned on them by Congress, according to the same common rule and measure by which the apportionments thereof shall be made on the other States; and the taxes for paying their proportion shall be laid and levied by the authority and direction of the legislatures of the district or districts, or new States, as in the original States, within the time agreed upon by the United States in Congress assembled. The legislatures of those districts or new States shall never interfere with the primary disposal of the soil by the United States in Congress assembled, nor with any regulation Congress may find necessary for securing the title to such soil to bona fide purchasers. No tax shall be imposed on lands, the property of the United States; and in no case shall non-resident proprietors be taxed higher than residents. The navigable waters leading into the Mississippi and St. Lawrence, and the carrying places between the same, shall be common highways, and forever free, as well to the inhabitants of the said Territory as to the citizens of the United States, and those of any other States that may be admitted into the confederacy, without any tax, import or duty therefor.