A holograph fair copy of Portraits of the Period by Sir Hugh Walpole, with a letter from the author, 1918-1919.

Papers and correspondence, 1846-1974, of David Meredith Seares Watson and his family, largely comprising biographical material and family papers, scientific correspondence, and photographs, also including a few Exchequer receipts, 1568-1622.

Biographical material, 1886-1974, includes Watson's birth certificate, 1886; documentation, including certificates and correspondence, of Watson's career, honours and awards over a period of forty years, including election to the Fellowship of the Royal Society, 1922, the award of its Darwin medal, 1942, and the Wollaston Medal of the Geological Society, 1965; correspondence about the Directorship of the British Museum (Natural History), 1937; correspondence about the presentation album on his retirement from the Jodrell Chair, 1951; correspondence and papers relating to his final retirement from research, 1965; obituaries, 1973; F R Parrington and T S Westoll's memoir of Watson from Biographical Memoirs of Fellows of the Royal Society, 1974; an account of Watson's early days and family background by his daughter Janet Vida; recollections by his research assistant Joyce Townsend; Watson's curriculum vita and bibliography.

Family papers include the birth certificate of Watson's father, David, 1846, correspondence with his wife Mary, 1888, and a letter of condolence to Mrs Watson on her husband's death, 1899; diaries of Mary Watson, 1881, 1885; birth certificate of their daughter Constance, 1888, letters from Constance to her brother David Meredith Seares Watson, 1905-1909 and undated; papers relating to Katharine Margarite Watson (née Parker), Watson's wife, including her birth certificate, 1891, marriage certificate, 1917, death certificate, 1969, and various correspondence; papers relating to Watson's daughter Katharine Mary, including letters of congratulation on her birth, 1918, and letters to her parents, 1950, 1955; material relating to Watson's mother's family, including letters of her father Samuel M Seares, 1871, 1879-1882; papers of Charles J B Hutchinson, 1879-1880, who emigrated to Australia after his engagement to Watson's mother was broken off but who remained in correspondence with her aunt, Fanny Rossiter; other Parker family papers, 1929-1972; miscellaneous other personal correspondence, 1896-1965.

Four Exchequer receipts dated 1568, 1580, 1616 and 1622 were found enclosed with a letter to Watson's wife.

Scientific correspondence of Watson, sometimes including photographs of fossil specimens, with leading palaeontologists in Africa, 1947-1953, America, 1915-1964, Australia, 1931-1962, China, 1926-1927, 1935-1964, England, 1913-1914, 1920, 1926-1960, France, 1930-1936, 1945-1956, Germany, Austria, Hungary and Czechoslovakia, 1920-1962, Russia, 1920-1962, and Scandinavia, 1922-1964, and with the palaeontologist Robert Broom, 1911-1950, and Watson's research assistant Joyce Townshend, 1929-1973, also including a few letters from Watson's wife and scientific colleagues, and an obituary of Watson, 1974; correspondence and papers on bones found at Qau, Egypt, 1930-1957, 1972; miscellaneous other palaeontological correspondence, 1912-1967. There are few copies of Watson's outgoing letters before the end of the Second World War.

Photographic material comprises photographs documenting Watson's career, [1912]-1965 and undated, some including colleagues; photographs of scientific colleagues, 1911-1951 and undated, including Watson's predecessor as Professor at University College London, J P Hill, and Robert Broom; album of photographs and signatures presented to Watson, 1951; undated family photographs, including a photograph of Watson as a boy, photographs of members of the Seares and Parker families, and photographs of Watson's wife, Katharine Margarite, and daughter, Katharine Mary; photographs of unidentified fossil specimens.

Royal Society Darwin Medal Award given to Watson, 1942.

The letterbook is entitled 'Autographs chiefly of my Literary Friends'. As this indicates, the letters were mostly retained for the signatures and many letters have had the text removed, leaving only the signature and perhaps the address. Other letters are incomplete, usually retaining just the last sheet. Most of the letters are written to Weymouth himself, but some are in the form of testimonials for him.

Records of Thomas Whitby, comprising commonplace books, [1804-1844]; scrapbook containing autographs, mostly of people connected with the Corporation of London, [1830-1835]; and catalogue of Whitby's library, 1834-1836.

Records of several generations of the Whitehouse family of Islington. The bulk of the collection comprises a range of family correspondence, including letters from family living or travelling abroad in Pennsylvania and New York, USA; Calcutta, India; Wellington, New Zealand; and France. There are also letters from members of the family serving during the Boer War and the First World War; and letters detailing everyday civilian life in London during the Second World War. Other papers include school reports of Henry Whitehouse junior; papers relating to prizes for artwork; Dramatic Society papers; papers relating to Henry Whitehouse junior acting as Special Constable in Islington; papers relating to property in Hornsey and Islington; financial records and family trees.

Henry Leonard Wilson's papers, 1930-1968, relate to his unpublished paper on the blindness of the poet John Milton, and consist of correspondence relating to the paper, drafts of the paper, notes on Milton, articles by others on Milton, and correspondence between Ruth Wilson, Wilson's widow, and the Royal College of Physicians library about the posthumous publication of the paper.

Papers of Thomas Wormald, 1818-c 1867, comprising a certificate for apprenticeship to John Abernethy, and autobiographical notes, 1818-c 1867; and letters from Sir Richard Owen, 1856-1859.

Papers of Richard Wright, Middlesex County Librarian, 1922-1952, including letters and cards sent to Wright from members of staff serving in the Second World War; newsletters; newspaper cuttings; journal articles; and photographs of libraries.