[A] Biographical and autobiographical material, including five volumes of family and personal history; Chibnall's war service, 1914-18; and correspondence about the Sir William Dunn Professorship, 1943.
[B] Research work, 1925-37; correspondence and papers on plant-protein fibres research, 1935-41; and insulin research, 1951-58.
[C] Lectures and publications, including material for the Sillimans Lectures at Yale, 1938, and the accompanying book; the Royal Society Bakerian Lecture, 1942; and the Procter Memorial Lecture, 1945.
[D] Societies and organisations: work for Agricultural Research Council, with reports on direct use of leaf protein in human nutrition and protein supplies for forage; correspondence and papers about the formation of the International Union of Biochemistry; and a report on human protein requirements and supplies for the Scientific Committee on Food Policy of the 1939-45 War Cabinet.
[E] Visits and conferences, especially the First International Congress on Biochemistry.
[F] Correspondence with plant biochemists and protein chemists in Britain, U.S.A. and Scandinavia.