Notebooks and diary including notebooks containing notes taken from lectures on physics and electricity given at the Royal Naval College, Greenwich, illustrated with sketches and diagrams, 1902; pilotage notes, 1907; Diary while serving with HMS VIRAGO, a destroyer on the China station, including visits to Hong Kong, Japan and elsewhere in the Far East, 1908 and notebooks containing lecture notes on electricity and mechanics, illustrated with small sketches and diagrams. Inscriptions 'J E L Bashford, HMS Vernon, Aug. 1911.' MS. 5740 also includes notes on mine-sweeping and on torpedoes fired, 1916-1918.

Records of Imperial College relating to the University of London, 1901-1989, including correspondence concerning syllabuses and examinations, 1901-1905; Principal's correspondence, 1910-1914; centenary celebrations, 1935; 150th anniversary, 1986; student accommodation, 1943-1944; Commissioners, 1927-1928; University of London Act and Statutes, 1926-1956; reports and proposed Act, 1975-1981; establishment of Imperial College as a University School, 1907-1908; correspondence with the Court concerning grants, 1930-1946; visitations and inspections, 1923-1985, including reports; papers relating to Quinquennial estimates, visits, developments and policy, 1946-1980, including Rector's papers, 1957-1969; academic plan, 1965-1970; governance of the university, notably Rector's correspondence, 1970-1983; reports, 1972-1982; Senate minutes, 1987-1989 (UL4-ULB);

Military Education Committee and Officers' Training Corps correspondence and papers, 1908-1958, including D Company roll book, 1927-1936; University Air Squadron correspondence, 1935-1939 (ULC); Conference and Committee papers on Engineering, and award of degrees, 1909-1926; correspondence concerning the recognition of Imperial College courses, 1945-1969; entrance and pass requirements for BSc degrees, 1954-1963; papers relating to postgraduate courses, 1961-1987 (ULG); correspondence relating to examinations and curricula, 1908-1934; student registration, 1952; confidential theses, 1940-1945 (ULH); Boathouse Committee papers, 1934-1947; University of London Students' Union ephemera, 1989 (ULM);
papers relating to the Nuclear Reactor Centre, Silwood Park, 1958-1980, notably opening, 1964-1965; purchase of the reactor, 1958-1965; Reactor Safety Committee, 1964-1974 (ULN);
papers concerning University Chairs and Readerships, 1908-1968, including regulations, 1922; correspondence concerning proposed Chairs and appointments, 1943-1968; Chairs tenable at Imperial College, 1943-1957; conferment of title of Professor and Readerships, 1931-1965; endowment of a Chair and Readership in Electrical Engineering, 1953-1958; applications for Assistant Professorships in Mining and Botany, 1908-1910 (ULO); papers concerning appointments to Chairs, with some papers concerning funding and administration for the Departments of Aeronautics, 1943-1975; Biochemistry, 1955-1979; Biology, 1952-1953; Botany including Biochemistry and Plant Physiology, 1936-1979; Chemical Engineering and Chemical Technology, 1935-1977; Analytical Chemistry, 1964-1975; Organic Chemistry, 1937-1978; Physical Chemistry, 1937-1977; Civil Engineering, 1945-1973; Computing and Control, 1974-1977; Electrical Engineering, 1944-1978; Geology, 1929-1975; Industrial Sociology, 1967-1978; Mathematics, 1946-1978; Mechanical Engineering, 1931-1978; Metallurgy, 1939-1976; Meteorology, 1933-1974; Mining, 1912-1980; Physics, 1937-1977; Zoology, 1930-1977 (ULP); appointments of readers in the Departments of Aeronautics and Aerodynamics, 1949-1972; Botany, 1942-1970; Chemical Engineering and Chemical Technology, 1932-1970; Inorganic and Physical Chemistry, 1937-1965; Organic Chemistry, 1944-1971; Civil Engineering, 1946-1977; Computing and Control, 1967-1968; Electrical Engineering, 1947-1965; Geology, 1936-1976; Mathematics, 1932-1977; Mechanical Engineering, 1936-1967; Metallurgy, 1937-1970; Meteorology, 1938-1970; Mining, 1950-1975; Physics, 1938-1970; Zoology, 1937-1970 (ULR);
correspondence concerning the recognition of college staff as teachers of the University, 1908-1949; establishment of the London Graduate School of Business Studies, 1963-1966; collaboration with Queen Elizabeth College, 1968-1981; with the Royal Postgraduate Medical School, 1968-1974; correspondence with Royal Holloway College, 1918-1974; with University College concerning a course on air navigation, 1936-1953 (UM).

Extensive correspondence of Sir Joseph Larmor relating to his work on electromagnetic theory, optics, analytical mechanics, and geodynamics.

The working drawings of John Smeaton, civil engineer. They illustrate his researches on waterwheels and applied mechanics, and the relative efficiency of overshot as opposed to undershot wheels. With supplementary engravings and manuscript notes.

Papers of John Canton.

Notes of lectures delivered in Cambridge by Nicholas Sanderson. Subjects covered include hydrostatics, tides, sounds, optics, mechanics and astronomy.

Two reports: The aerodynamic derivatives with respect to sideslip for a delta wing with small dihedral at supersonic speeds' by Sqn Ldr John Hunter-Tod and Abraham Robinson (College of Aeronautics, Cranfield, Dec 1950);The aerodynamic derivatives with respect to a rate of yaw for a delta wing with dihedral and at incidence at supersonic speeds' by Sqn Ldr J H Hunter-Tod (HMSO, 1957).

Scientific and other papers sent to the Royal Society, presented at meetings of Fellows, or commissioned by the Society. They form a complementary series to the Early Letters, both of which were superseded by the Letters and Papers. Many of these items, referred to as the 'Guard Books', are duplicated in the Register Book of the Society. The classification is a simplified form of the 'Philosophical Transactions' abridgment by John Lowthorp. This arrangement was completed in 1741 by Thomas Birch. The majority of the papers in these volumes are manuscript, but a few printed documents occur throughout the series. Some of the papers are earlier in date than the grant on 15 July 1662 of the First Charter to the Society. The Committee of Trades seems to have been associated with the earlier meetings of those philosophers who subsequently became Fellows, and produced a number of practical papers, some of which were written in 1639 and which are mostly found in Volume 3(i). There are still earlier documents, mostly in Volume 25, which may have been included in the gift, in 1667, of the Arundel Library.

Collection comprising three manuscript notebooks of theoretical problems relating to mechanics compiled by James Clerk Maxwell mainly during his employment at King's College London, including exam questions on aspects of mechanics and geometry, 1860-1865; problems on the collision of elastic spheres and the dynamic relation between other solid bodies; the refraction of light; the relationship between heat and volume in materials; attraction between particles, 1860-1873; notes on the works of leading authorities on mathematics and physics including Arthur Cayley, Franz Neumann and Siméon Poisson, 1867-1873; bibliography of textbooks mainly on mechanics, [1860-1865]; list of scientific instrument suppliers, [1860-1865]; outline of the contents of Maxwell's Treatise on electricity and magnetism (1873).