In 1873 Hitchcock introduced the Timber Culture Act a follow-up act to the Homestead Act. The Timber Culture Act was passed by Congress on March 3 of that year. This act allowed homesteaders to acquire 160 acres of land by planting 40 acres of trees. At the end of eight years from the date of entry, the settler could make final proof if the necessary conditions had been fulfilled. Five additional years were allowed to make proof, or a total of thirteen years from the date of entry. The claimant had to prove that the trees had been planted and cultivated and that not less than 675 living trees per acre had survived. An affidavit or "timber culture proof" had to be completed by the claimant and two witnesses before the final certificate and patents were issued.