Scope and Content Note This collection contains 18 notebooks; 23 manuscripts of published or unpublished articles, addresses and reports by Purdue; 45 reprints, tear-sheets, clippings and pamphlet printings of published articles, addresses and other works by, or about the academic or professional careers of, the Indiana native and Stanford University graduate who became Arkansas State Geologist and Arkansas State Superintendent of Mines and Metallurgy and who served as University of Arkansas professor of geology...