Series 1. Correspondence. 1928-1986
Series 2. Manuscripts & Typescripts. 1941-1986
Series 3. Translations. 1951-1969
Series 4. Affiliations. 1947-1985
Series 5. Northern Regional Research Laboratory (NRRL). 1940-1953; 1979-80
Series 6. University of Wisconsin. 1953-1986
Series 7. Course Curricula. 1953-1977
Series 8. Class Notes. 1929-1935
Series 9. Lectures & Talks. 1956-1985
Series 10. Research Grants. 1955-1979
Series 11. Research Papers. 1928-1984
Series 12. Personal Papers. 1935-1986