Any tract of school lands, not exceeding three acres in extent, which has been used for school purposes, the title to which has remained in, or has reverted to the state of Kansas, may be sold by the secretary of state without survey or appraisement. The secretary of state shall negotiate sales of such lands and submit the same to the governor for the governor’s approval. Upon the approval of any such sale, the secretary of state shall deliver a good and sufficient grant or patent conveying to the purchaser or purchasers all of the title of the state of Kansas in and to the tract so sold. The proceeds arising from such sales shall be remitted to the state treasurer in accordance with the provisions of Kan. Stat. Ann. § 75-4215, and amendments thereto. Upon receipt of each such remittance, the state treasurer shall deposit the entire amount in the state treasury to the credit of the state school equalization fund. This act shall not be construed as repealing or limiting any existing acts relating to the sale of school lands, but shall be construed as providing an additional method for the sale of tracts not exceeding three acres.