Charles William Bunn, 15 January 1905 - 13 April 1990

Charles William Bunn’s career was an unusual one. Trained as a chemist, he was largely self-taught in crystallography, a subject dominated during his scientific lifetime by the pupils of W. H. and W. L. Bragg. His own researches bore an individual stamp, coloured by an instinctive feel for the way in which molecules arrange themselves and pack. He was unusual, also, in the extent to which he made use of optical and other non-X-ray methods to solve structural problems. Bunn spent the majority of his working life in the research departments of ICI, at first in the Alkali Division at Winnington, Northwich, and later in the Plastics Division laboratories at Welwyn Garden City. Though working in industrial laboratories, his principal researches were basic and fundamental studies on polymers and on crystal growth. He was much loved and respected by his colleagues and collaborators but, because of his shyness and exceptional modesty he was a difficult man to get to know well, even under conditions where colleagues were often also neighbours. He was a private person who lived for his twin interests in science and in music. His musical tastes were for 19th- and 20th-century composers. Throughout his life his favourite composer was Vaughan Williams and in his younger days he had little liking for what he called ‘the complex and sophisticated music of the Germans, which tends to academic dullness in Bach and courtly formalism in Haydn and Mozart’. However, in his last decade his piano playing turned almost exclusively to the keyboard sonatas of Haydn and Mozart. He played the violin in several orchestras such as the Welwyn Garden City Music Society orchestra. He also composed a little, but none of his compositions appear to have survived. From boyhood he built his own radio receivers to listen to broadcast concerts; later, he built up an extensive collection of gramophone records. Bunn was an ardent reader; in fiction his taste was for long novels such as those of Galsworthy and Tolstoy; he read War and peace four times. He enjoyed biographies of composers and scientists and was widely read in mediaeval English history and in archaeology. Bunn had little time for formal religion, theology or philosophy. His views were that ‘theology is quack philosophy, and philosophy is quack science’. However, he had a strong belief in personal freedom and tolerance and suffered himself just from hearing of any strife. He was an ardent admirer of Gandhi and of the philosophy of non