Section 673, R.S. 2354, authorized private sales of all public lands in entire, half, etc., sections. Section 674, R.S. 2355; 1946 Reorg. Plan No. 3, 403, eff. July 16, 1946, 11 F.R. 7876, 60 Stat. 1100, required a memorandum in connection with application for purchase of public land at private sale. Section 675, act May 18, 1898, ch. 344, 2, 30 Stat. 418, set forth requirements for private sale of public lands in Missouri. Section 676, R.S. 2365; 1946 Reorg. Plan No. 3, 403, eff. July 16, 1946, 11 F.R. 7876, 60 Stat. 1100, authorized sale of public land to highest bidder at the private sale of land.