Ralph L. Parshall Collection 1902-1992 1921-1961
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Ralph Leroy Parshall, engineer, contributed significantly to the field of irrigation engineering with the development of a flow-measuring devide that became known as the Parshall flue and continues to be widely used today. Parshall served as instructor and then assistant professor at the Colorado Agricultural College between 1904 and 1913. In 1913 he was appointed assistant engineer and director of irrigation investigations with the Division of Irrigation, Soil Conservation Service U.S> Depar...