Papers of Colin Graham Trapnell, 1926-1970, comprising four series. The first (CGT/1) consists of Trapnell’s collecting notebooks in Zambia; the second of one file of correspondence sent and received by Trapnell, mostly relating to his work CGT/2); the third series comprises notes, reports and surveys on a variety of topics, such as soil, grazing and South African vegetation (CGT3). The fourth and final series (CGT/4) contains photographs of Zambia, Kenya and Malawi recording the work carried out by Trapnell, and showing vegetation, agricultural practices and also native people and habitations.

Correspondence of and papers relating to Sir Bernard Augustus Keen, 1931-1982, comprising correspondence between Keen and Sir (Alfred) Daniel Hall, 1931, then Director of the John Innes Horticultural Institution, relating to the setting up of the Agricultural Research Council and the offer to Keen of the position of Secretary, also including a letter from Hall commenting on Keen's report on Indian agriculture; letters of farewell to and from Keen and press cutting on his retirement from East Africa and return to Britain, 1954; letters from Sir (Edward) John Russell, 1962-1963, relating mainly to Russell's history of agricultural science in Britain, but also recalling Keen's appointment at Rothamsted in 1913 and [Ernest?] Rutherford's praise of his book The Physical Properties of the Soil (1931); letters from G D H Bell on Keen's retirement as Editor, Journal of Agricultural Science, 1965; letter of condolence from Royal Meteorological Society on Keen's death, 1981; Sir (Herbert) Charles Pereira's memoir of Keen for Biographical Memoirs of Fellows of the Royal Society, vol xxviii (1982), with related correspondence of Pereira, 1982.

Obituaries of Cole, 1994, taken from the Transactions of the Institute of British Geography, the Independent, the Times, and the Royal Holloway and Bedford New College Journal. Papers relating to a Bedford College geobotanical project [Project Gamma for Trust Mining] in Botswana, 1967-1970, including receipts and financial documents, 1967-1969, concerning expenses for the land rover used in the project; copies of Geobotanical Transect Sheets and Plant Ashing Sheets, 1968-1970; carbon book, 1970, containing a monthly report by Cole on the progress of the project during March, including work completed, summary of results, lists of plant and soil samples, maps, plans and photographs; carbon books, 1969-1970, belonging to André Boshoff and containing copies of correspondence relating to the analysis of soil and plant samples and reports on the progress of the project from Feb 1969-Feb 1970; field maps of Mwaku Pan, Botswana, [1968-1970].

Records of the Department of Chemistry of Imperial College, 1880-1991, including articles, press cuttings, reminiscences of old students, 1912-1991; regulations, 1901-1925; examination papers, 1886-1972; correspondence concerning equipment and test certificates, 1905-1933; notebooks of students' laboratory work, 1890-1903; notes on advanced organic chemistry lectures, 1914-1915; practical chemistry, 1894-1896; physical chemistry lectures, 1905; inorganic chemistry, 1894-1895; correspondence of staff, including Professor Sir William Augustus Tilden, 1907-1909; Professor James Charles Philip, 1909-1934; Professor Sir Thomas Edward Thorpe, 1909-1921; Professor H B Baker, 1912-1932; Martha Annie Whiteley, 1918-1934; Professor Friedrich Adolf Paneth, 1933-1939; correspondence relating to departmental reorganisation, 1939, and reconstruction of advanced analytical laboratory, 1938-1939; papers relating to laboratory work, 1925-1963, including sample analysis, 1925-1963; Rectors' papers relating to the department, 1950-1981, including correspondence relating to a Rockefeller grant, 1950-1957; appointments and future of the department, 1975-1981; staff attendance book, 1909; correspondence relating to war emergencies, 1938-1961; papers, including minutes, relating to the National Joint Committee on recruitment and training of science laboratory technicians, 1951-1957; papers of the Organic Chemistry Laboratory, 1907-1921; examination lists and results, 1907-1924; annual dinner menu, 1931, and list of members, 1947, of the 31 Club; analytical laboratory students records, 1910-1925; inventories of platinum apparatus and platinum, 1920-[1967]; second and third year student records and reports, 1939, 1940 (KC);
papers relating to Agricultural Chemistry, 1880-1955, including notes on Henry Tanner's lectures, 1880; correspondence concerning the course, 1935-1955 (KCA);
papers relating to the Chemical Engineering Department, 1910-1985, including press cuttings and departmental history from 1912-1939, [1960]; departmental annual and research reports, 1926-1991; postgraduate courses, 1910-1991; Professors' records, 1945-1956; students' records, 1919-1945; lists of students, 1936-1944, 1947-1950; research assistants, 1939-1941; correspondence of staff notably Professor William Arthur Bone, 1911-1936; Professor John William Hinchley, 1919-1932; Professor Sir Alfred Egerton, 1936-1946; correspondence relating to the establishment and organisation of the department, 1911-1942; papers relating to the department building, 1911-1935, including correspondence with the architect, 1911-1914; specifications and agreements, 1913-1930; estimates and expenditure for equipment, 1911-1950; correspondence relating to the Courtauld Trust endowment for a Chair of Chemical Engineering, 1944-1959; with Radiation House relating to a fellowship, 1938-1961; Rectors' correspondence with Heads of the Department, 1957-1981; British Iron and Steel Research Association research plans and press cuttings, 1947-1966; papers relating to Health Physics (Radiation Protection) summer schools, 1960-1980 (KCT).

Soil surveys for a number of buildings and sites in London, 1971-1984; project files, 1987-1988, containing plans, drawings, site surveys, elevations, tenders, contracts and notes for a number of buildings including Kilmonie School, Settle Street School, Raines Tertiary College, Eliot Bank School, Fairlawn School, Tewkesbury Estate School, Jewish Free School, Camden, Templars School, County Hall boiler-house and calorifiers, Durrington Road and Courage Industrial Site; remedial works and conditions surveys for sites including Yeading Green Estate, Pilgrim Estate, Copley Close Estate, Hanwell Estate, Islip Manor Estate, Northolt Park Estate and Ruislip Gardens Estate, 1970-1988; electrical and mechanical condition surveys for various locations, 1970-1988.

Ledger of the Association of British Organic Fertilisers Limited.