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This collection contains materials related to Levine's research interests, as well as those documenting his publications and university career. Correspondence includes letters about general cryptography, articles written by Levine and others, Levine's cryptographic patents book, and cryptographic computer tests. Research contains notes, computer printouts, article reprints, and note cards related to Levine's research interests in cryptography. Writings includes Levine's published and unpublished essays and pamphlets. Teaching Career includes class notes and other student-related material. Collected Works includes articles, books, and bibliographic information of other authors in the fields of mathematics and cryptography. Unprocessed Material contains copies of articles and publications on cryptography. Most of the materials are from Levine's lifetime, but some of the items in the Collected Works series are from as early as 1716. The Jack Levine Papers documents Levine's career as a crytographic researcher and mathematics professor at North Carolina State College (later North Carolina State University) from 1936 to 1995. The collection contains information on Levine's research, writings, university career, and correspondence. His main interests were tensor analysis, geometrics of generalized spaces, differential geometry, combinatorial analysis, theory of symmetric functions, algebraic cryptography and mathematical physics. Less

The John William Harrelson Papers contain correspondence, speeches and writings, reports, minutes, clippings, certificates, scrapbooks, financial records, and photographs. The collection provides information about Harrelson's military career, 1917-1919; his tenure as a faculty member and administrator at North Carolina State College (later North Carolina State University), 1919-1929 and 1933-1953; and his service as director of the North Carolina Department of Conservation and Development, 1929-1933. The materials also relate to Harrelson's membership in various civic and professional organizations. Materials range in date from 1908 to 1955. John William Harrelson (1885-1955) was a member of the faculty and administrator at North Carolina State College (later North Carolina State University) and was director of the North Carolina Department of Conservation and Development. Less