The papers include laboratory notebooks dealing with Bawden's research on various plant viruses, and in particular his collaborative work with N.W. Pirie and with A.A.P. Kleczkowski. There is also a detailed exchange of correspondence with Pirie on research in progress, 1937-1940. (Pirie moved to Rothamsted as Virus Physiologist in 1940 when Bawden became Head of the Plant Physiology Department.) There is a wide range of correspondence, with individuals and institutions. It deals with scientific research and problems including viral nomenclature, lectures, conferences, publications, Bawden's reports on research projects, grant applications and appointments. The correspondence relating to Bawden's overseas visits as adviser or lecturer is mainly after 1958 and is sometimes accompanied by Bawden's reports.

Papers of Professor Frederick Gugenheim Gregory, [1918-1959], comprising notebooks, [1918-1957], with some correspondence, notably concerning nutrition of plants, assimilation, respiration, stomata, metabolism, plant growth, auxins; pencil and watercolour botanical drawings; citation for the award of the Royal medal, 1957; printed papers, 1921-1957; Journal of Experimental Botany, 1957; correspondence.