The Secretary of State shall have charge of the swamp and the overflowed lands and indemnity lands in lieu thereof, the internal improvement lands, the lands forfeited to the state for nonpayment of taxes after the time allowed by law for redemption shall have expired, and of all other public lands belonging to or under the control of the state. The regulation, sale and disposition of all such lands shall be made through the secretary of state's office.
The secretary of state shall sign all conveyances and leases of any and all state-owned lands and shall record same in a book kept in his office for such purposes.