Reclamation of land. Amendment to Great Plains act, hearings, 70th Congress, 3d session, on H. R. 10122, to amend act authorizing construction of water conservation and utilization projects in Great Plains and arid and semiarid areas of United States and act to promote conservation in arid and semiarid areas of United States by aiding in development of facilities for water storage and utilization, Aug. 29-Sept. 13, 1940.