Condra, George E., 1917 The Potash Industry of Nebraska (Bull-1A). 29 pp. 6" x 8". Description: A report prepared by Dr. George E. Condra, then Director of Conservation and Soil Survey of Nebraska, for the Nebraska State Board of Agriculture. The potash industry of Nebraska was developed within a short time starting with small shipments of alkali crusts collected from the shores of McCarthy Lake and shipped to Omaha, Nebraska. Bull-1A is a report of the Nebraska Potash Industry at the time of publication, of historical interest.