On making such payment, the applicant is vested with a qualified estate in fee to the acre of land located and circumscribed by the jury, such estate to become absolute on performance of the following conditions: (Code 1852, §2105; Code 1867, §2497; Code 1876, §3571; Code 1886, §3197; Code 1896, §1740; Code 1907, §3901; Code 1923, §7520; Code 1940, T. 19, §46.)