The collection comprises manuscript notebooks, printed pamphlets, correspondence, a minute book, and photographic and other catalogues, 1768-1970. These notably include notebooks containing descriptions and viewing data relating to astronomical observations carried out at Kew Observatory, Richmond, Surrey, on behalf of King George III, with a printed pamphlet by Nevil Maskelyne, Astronomer Royal, entitled Observations of the transit of Venus over the Sun , 1768-1769; manuscript notebook containing measurements recorded during a test of the accuracy of the H5 chronometer designed by John Harrison, 1772; manuscript notebooks recording daily temperature, barometric, hygrometric and rainfall readings taken at Kew Observatory, Richmond, Surrey, 1773-1840; a printed pamphlet by George Atwood, Fellow of the Royal Society, entitled A Supplement to 'A treatise on the construction and properties of arches' (London, 1804), with manuscript dedication to King George III and related correspondence, 1804-1805; a folio signature book of visits by dignitaries to the George III Museum, 1843-1929; manuscript diary describing the work of the George III Museum including the upkeep of equipment and use of exhibits in experiments, 1850-1880; manuscript minutes of the George III Museum Committee charged with managing the collection, 1880-1885; catalogues relating to the collection, [1841-1970]; correspondence by George Calver, astronomer, relating to telescope design, 1897; series of copper plates and labels advertising the George III Museum, [1841-1926].

Volume entitled A Feasibility Study for a Military Engineering Museum at Fort Amherst, Chatham , 26 October 1972; compiled by a working party from the Royal School of Military Engineering including Lt Col Paul Nicholas Mason. Includes discussion of need for an open air museum dedicated to a comprehensive exhibition of military engineering techniques and equipment; development of the site; conservation of Fort Amherst; exhibits required for the museum; costs and fundraising; sponsorship; staffing and diagrams including a plan of the tunnels.

Records of St Thomas's Hospital Medical School, comprising administrative records, 1842-1939, including minutes of Committees 1832-1982;

administrative files,1870-1975; museum catalogue, 1829; library administrative minutes and files, 1925-2001; Departmental Records 1945-1955; School timetables and notices 1932-1940; Examinations question papers 1909-1976;

correspondence relating to cholera outbreak 1831-1835; Cholera casebook 1853-1854;

records of the Medical and Physical Society of St Thomas's Hospital, 1841-1991;

records of student clubs and societies 1873-1975;

student records, 1723-1986;

prize essays, [1834]-1928;

personal papers collections of students and staff;

financial records, 1867-1982;

photographs of St Thomas's Hospital Medical School - students, staff and buildings, [1859-2002];

illustrations and works of art including medical and anatomical illustrations, and depications of staff, students, school and hosptial buildings,[1720s-1980];

publications, 1836-1992, including St Thomas's Hospital Gazette , 1891-1996; St Thomas's Hospital Reports , 1836, 1870-1952; Calendars and Prospectus of St Thomas's Hospital Medical School, 1888-1982; and related material;

ephemera [1800-2000], including admission cards, orders of service, programmes, flyers, press cuttings, menus, audio recordings; and medical and surgical artifacts.

Experimental notes, working papers, correspondence and lecture summaries compiled by Charles Wheatstone, 1836-1875, and photographs collected by him in that period. Notably including papers relating to the development and testing of the telegraph, [1836-1960]; descriptions of experiments and test results concerning the measurement of electromotive forces and electrical potential, [1840-1875]; experimental observations on the nature of magnetism, electricity and thermodynamics, including electromagnet design, batteries and dynamos, [1834-1855]; working papers relating to optics including experiments into refraction, colouration of compounds and polarisation, [1850-1875]; drafts of lectures on sound and musical instruments prepared by Wheatstone, [1832-1837]; material relating to the management of the Wheatstone collection of scientific instruments and library, 1890-1992; biographical material relating to the life of Wheatstone, the invention of the telegraph and Wheatstone's musical instrument manufacturing business, with unrelated newspapers, 1757-1975; stereoscopic photographs and glass negatives taken by Roger Fenton, Samuel Buckle, Jules Duboscq and others, featuring landscapes, still lifes, panoramic scenes of cities including Paris and Moscow and the interior and exterior of the Crystal Palace, Hyde Park, Sydenham, 1851, and especially the Exposition Universelle, Paris, 1855, [1850-1901]; artefacts from Department of Physics, King's College London, including demonstration equipment, telegraph apparatus, a nail fiddle and other prototype musical instruments, [1834-1875]; exhibition of scientific and musical instruments, [1834-1875].