1. Letter from John Desmond Bernal to Monsieur Beaudouin Creator: Bernal, John DesmondBirkbeck College Date: 14 December 1956 Genre: Letters (correspondence)
2. Letter from Aaron Klug to Wendell M. Stanley Creator: Klug, AaronBirkbeck College Date: 21 July 1958 Genre: Letters (correspondence)
3. Letter from Aaron Klug to F. C. Bawden Creator: Klug, AaronBirkbeck College Date: 30 April 1958 Genre: Letters (correspondence)
4. Letter from John Desmond Bernal to J. T. Randall Creator: Bernal, John DesmondBirkbeck College Date: 28 October 1953 Genre: Letters (correspondence)