Condra, G.E., 1908. Geology and Water Resources of a Portion of the Missouri River Valley in North-Eastern Nebraska (WSP-215b). 59 pp., size 6" x 9". Description: the eastern part of the area was settled long ago, and the western counties are now rapidly filling up. The entire region has a fertile soil, and there is sufficient ranfal to insure crops in most seasons, especially where careful cultivation is practiced. Very little irrigation is needed, and a few short ditches constructed during exceptionally dry years are not used at present. In 1903 no irrigation whatever was employed.