Records of the Geological Society of London, 1807-current, notably comprising:

Minutes and papers of Annual General Meetings, 1840-current; minutes, correspondence and papers relating to meetings of the Council, 1810-current; minutes and papers of Ordinary Meetings, 1807-1998; minutes and papers of Special General Meetings; 1834-2001; Minutes and papers of Standing and Ad Hoc committees of Council, [1810-current] [section is currently undergoing revision]; Charter and Bye-laws, 1810-1993;

Correspondence and other administrative papers relating to the running of the Geological Society, including: Presidents' Papers, 1977-1997; Elected Officers' papers, 1956-1995; Executive Secretary's papers, 1950-2013; Financial records, including bequests, trust funds, 1820-2011; Letterbooks of the Assistant Secretary and other Officers, [1807]-1960;

Administrative records of departments, including: Membership, 1807-current; Conferences and scientific meetings, 1932-2006; Library, 1835-current; Archives and conservation, 1971-2004; Education Department, 1993-1998; Society's Museum, 1808-1911; Publications, 1906-2009;

Portraits and photographs of Fellows, 1792-2011; Images of the interior and exterior of Burlington House, 1873-[1995]; Plans of the Society's apartments at Somerset House and Burlington House, 1828-[1982]; Obituaries and biographical information on Fellows, [1895]-current; Records of the Society's Centenary celebrations, 1907-1908; and Bicentenary celebrations, 1994-1998;

Records of the Geological Society Club, 1824-2006; Records of the Society's Specialist Groups and Joint Associations, 1964-[2009].