Sec. 4.  Authorization to form constitution and state government; limitations.  And be it further enacted, That the members of the convention, thus elected, shall meet at the capital of said territory on the first Monday in July next, and, after organization, shall declare, on behalf of the people of said territory, that they adopt the constitution of the United States. Whereupon the said convention shall be, and it is hereby, authorized to form a constitution and state government for said territory: Provided, That the constitution, when formed, shall be republican, and not repugnant to the constitution of the United States, and the principles of the Declaration of Independence: And provided further, That said convention shall provide, by an ordinance irrevocable, without the consent of the United States and the people of said state:— First. That there shall be neither slavery nor involuntary servitude in the said state, otherwise than in the punishment of crimes, whereof the party shall have been duly convicted. Second. That perfect toleration of religious sentiment shall be secured, and no inhabitant of said state shall ever be molested in person or property on account of his or her mode of religious worship. Third. That the people inhabiting said territory do agree and declare that they forever disclaim all right and title to the unappropriated public lands lying within said territory, and that the same shall be and remain at the sole and entire disposition of the United States; and that the lands belonging to citizens of the United States residing without the said state shall never be taxed higher than the land belonging to the residents thereof; and that no taxes shall be imposed by said state on lands or property therein belonging to, or which may hereafter be purchased by, the United States. Sec. 10.  Five percent of subsequent sales of public lands by United States to be paid to state for public roads and irrigation.  And be it further enacted, That five percentum of the proceeds of the sales of all public lands lying within said state, which shall be sold by the United States subsequent to the admission of said state into the Union, after deducting all the expenses incident to the same, shall be paid to the said state for the purpose of making and improving public roads, constructing ditches or canals, to effect a general system of irrigation of the agricultural land in the state, as the legislature shall direct.