Records of the Department of Electrical Engineering of Imperial College, 1891-1980, including a departmental history from 1884-1963, press cuttings; papers relating to postgraduate courses, 1953-1972; laboratory work, including instruction sheets, 1930-1959; notes by Professor Cecil Lewis Fortescue, 1923; reports by students, 1891-1927; students' lecture notes and files, 1958-1960; correspondence with the administration department, 1908-1941, 1958-1969; correspondence concerning a Readership in Electronics, 1948-1959; Readership and bursaries in Electric Traction, 1956-1967; papers relating to projects, 1968, 1978; course syllabus, 1964-1970; Lucas fund, 1962-1970; reports of working parties, 1979-1980; examination papers, 1953-1970; departmental correspondence of Professor Arnold Tustin, 1951-1961, including research projects, research grants; papers relating to Engineering in Medicine, comprising Leverhulme Trust Fund bursaries, 1962-1967.

Journal kept by John Gallop during the building of the MRC Cyclotron Unit, Hammersmith, 1949-1956, plus reports, correspondence and photographs, regarding the MRC cyclotron and many in American institutions. The 'MRC Policy' files contain reports and correspondence generated during the planning and execution of the cyclotron project, and give a good picture of the background negotiations as well as the day-to-day administration. Gallop's tutorial to the Stafford Hospital Postgraduate Medical School (G.1) summarises his view of the process. Both Gallop and J W Boag sent detailed reports of the cyclotrons which they visited in the USA in 1949-1950 (C.1-6), which Gallop prepared for publication (C.7) and lectures (C.8). The correspondence in Sections D and E contains further reports, and the personal correspondence (Section F), especially the letters from Boag, includes further thoughts on cyclotron development and use.

General Optical Council administrative records, 1959-2000: minutes of the meetings of the Council and its various committees including related memos and correspondence, Annual Reports of the Council and Committees, Notices of Motion, Registers of Opticians and Lists of Corporate Bodies.

Papers of the RCOG Gynaecological laparoscopy and confidential enquiry into laparoscopy working party, comprising Professor Chamberlain's correspondence and papers, 1977-1981, his signed copies of the working party's minutes, 1975-1977, a copy of the report of the working party, Gynaecological Laparoscopy: report on the Confidential Enquiry into Gynaecological Laparoscopy conducted by the Royal College of Obstetricians and Gynaecologists in co-operation with the Department of Health and Social Security and the Medical Defence Union, Medical Protection Society, the Medical and Dental Defence Union of Scotland, Apr 1978, and copies of two reviews of laparoscopy equipment undertaken by the working party in 1980 and 1982.

Papers of the Joint Medical Research Council and Royal College of Obstetricians and Gynaecologists Voluntary Licensing Authority (VLA) for Human In Vitro Fertilisation (IVF) and Embryology, 1985-1986, comprising: minutes and correspondence; completed applications from individual centres and research projects seeking licences (with supporting documentation); copies of reports of visits made by the Licensing Authority to IVF centres.

Photographs, portraits and other images relating to Joseph Lister including the operating theatre where he worked; surgical equipment used by Lister; copies of portraits of Lister, one autographed by Lister; photograph of Lister with his House Surgeons and Dressers 1861-1893; photograph of Lister at complementary dinner to Dr William Playfair; card with signatures of the Principal and senior staff of King's College and King's College Hospital presented to Lister on his 80th birthday; photographs of Lister memorials including plaques, centenary celebrations and his representation in television and film; review of biography of Lister, Times Literary Supplement; captions and photographs used for an exhibition on Lister.

British and French patents, 1861-1862, for John Marshall's invention for 'the collection, concentration and transmission of sound, so as to facilitate the hearing.' Also includes a Belgian 'brevet d'importation.'

Louisa Martindale collection, 1872-1964. The collection consists of Section A: a little personal correspondence, papers, articles, speeches and lectures by Louisa Martindale, and some personal material including notes on the glaucoma which eventually blinded her, 1872-1960; and Section B: papers concerning the Medical Women's International Association (founded 1919) of which Miss Martindale was President from 1937 to 1947. As well as her own correspondence in this capacity, 1937-1946, there is one file of the correspondence of Mme Montreuil-Strauss, Secretary of the Medical Women's International Association at his period. (Louisa Martindale destroyed the vast bulk of her case records at the time of her retirement from practice around 1950, those remaining were destroyed by her executors after her death).

Papers relating to the Artificial Limb Centre, Pune, India, 1956, comprising an album containing photographs and descriptions of patients with artifical limbs.

The bulk of the collection consists of correspondence: the Singers were clearly vigorous letter writers and both Charles and Dorothea had an enormous number of family, friends and acquaintances. Unfortunately many of their letters were hand written and very few carbon copies survive. Very occasionally an attempt at methodical selection and arrangement is evident: on the whole correspondence had been kept in alphabetical order, and this has been retained in the arrangement of the collection. Dorothea and Charles' correspondence was fairly mixed (reflecting their working life together) with the exception of two distinct groups: correspondence about Dorothea's research on alchemical manuscripts, and later correspondence about her hearing aids.

The main part of the collection centres on the correspondence; this has been grouped together in a self-evident sequence: writings and biographical personal papers follow. Certain of Dorothea's papers remained clearly distinct and these have been kept together. Section E contains a variety of material relating to Jewish refugees, which had been placed on one side by Dorothea after the war for permanent preservation. It has not been listed in detail but sorted into three broad categories. The last section, comprising additional correspondence of the Singers with Sir Zachary Cope, Sir Arthur Salusbury MacNalty and Dr F N L Poynter, is not strictly part of the collection, but these groups of correspondence were given to the Institute to be placed alongside the Singer papers.

Correspondence, papers and final report of the Royal College of Obstetricians and Gynaecologists working party on ultrasound screening for fetal abnormalities, 1994-1997, and of the supplementary working group, 1998-2000.

Records of the Worshipful Company of Spectacle Makers, including registers of freedom admissions 1699-1873; apprentice bindings 1694-1860; charters; ordinances; grant of arms; Court minute books; financial accounts and rent ledger.

IMPORTANT INFORMATION REGARDING ACCESS: These records are stored at the Guildhall Library site rather than the LMA Clerkenwell site. Researchers wishing to access these records should do so at the Guildhall Library Rare Books table. The Library is open Monday to Saturday, 9:30 to 16:45. Researchers will need to have an Archives History Card or a Library Readers Card. An archivist will be available at Guildhall Library on Thursday mornings to answer any queries.