Chairman of Council 1850 and 1852; From original taken by Julia Margaret Cameron which is in the Society's possession
Chairman of Council 1886-1887
Chairman of Council 1910-1911
Chairman of Council 1959-1960
Chairman of Council 1980-1981
Chairman of Council 1980-1981
Chairman of Council 1980-1981
Chairman of Council 1989-1991
Chairman of Council 1995-1997
Chairman of Council 1995-1997. Photograph by Fi McGhee
Sir Evans was Chairman of Council 1900-1901
Letters to Dilke from Prince Albert, Lord Granville, Peter le Neve Foster and others about the Great Exhibition, the Royal Horticultural Society and Dilke's baronetcy. Also includes other correspondence, newspaper cuttings and a manuscript 'Private Family Memoir' of Dilke's life
Letters to Playfair on the Paris Exhibition of 1855, 'boulets asphyxiants', the School of Mines, diet, appointment of teachers, secular education, the Geological Survey, the Royal Dublin Society etc. Includes correspondence from Henry Cole and with Prince Albert. An account of the letters was given in a lecture by Dr Norrish on 9 May 1951 and printed in the Journal, volume 99 pp537-549