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Abstract Arnold Ivan Johnson (1919-2011) was a hydrologist who worked for the U.S. Geological Survey (USGS) for over 30 years researching soil mechanics and water-related issues. A member of many professional organizations and over 50 committees and symposia, he served as First Vice President of the International Association of Hydrological Sciences (IAHS) from 1975 to 1979 and received the Meritorious Service Award from the U.S. Department of the Interior. The collection primarily contains...
Dates: 1948-2000; Majority of material found within 1960-1997