Dyason Lectures - 1950 tour (Lord Bertrand Russell): Sir Julian Huxley, 1954-60 Box 59-61 Unit ID: [unnumbered] Date: 1954-60
Dyason Lectures - 1950 tour (Lord Bertrand Russell): William O. Douglas, 1955-62 Box 59-61 Unit ID: [unnumbered] Date: 1955-62