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Most of the files contain five or more letters. Some files include letters from more than one member of a family, and the larger correspondences occupy two or more files.

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Signatures or specimens of handwriting cut from letters and other documents.

Scope and Contents Correspondence concerning observations given to the Northern Rifle Association, U. Levau, Mr Spencer, A. Stubbs, J. Franz, H.P. Slade, Mr MacKenzie, Mr Jackson, Mr Dawes and Mr Hutchinson, 1889. The topics include the Sun's position at Wimbledon; Vesta, 1887-1888; the azimuth of the Sun and Moon in west London; sunrise near Paris; the full Moon, January and February 1891; observations of a lunar crater; measures of Mars and Saturn; an equation of time; the meeting of Mars and Saturn; and the...

Scope and Contents Official correspondence concerning the Annual Visitation of the Board of Visitors to Royal Observatory. The volume is divided into 18 sections. The first two sections cover the years 1891-1893 and 1894-1901. The remaining sections cover the years 1895-1910 inclusive. Much of the correspondence is between Christie and W.D. Barber, the Secretary of the Board of Visitors. The other correspondents are W.G. Adams, R.S. Ball, P. Cavell, A.E. Cooper (for Sir William Abriey), F.W. Dyson, Admiral...

Scope and Contents Correspondence and related papers concerning the Annual Visitations of the Board of Visitors to the Royal Observatory and Visitation Dinners:Correspondence arranging the annual dinner for the Board of Visitors, including correspondence with the caterers, Messrs Spicer and Pond, and letters accepting and declining invitations to the dinner. The correspondents are A. Carpenter, W.D. Cronin, A.A. Common, W.B. Gibbs, E.H. Griffiths, the Rajah of Jugga Row, N. Langton, A. Siemens, C....

Scope and Contents Miscellaneous correspondence regarding the following subjects:Telegraphs announcing errors and failures in the time signal, 1879-1880.Complaints about the time signal sent to Glasgow, the General Post Office and Portsmouth, 1880-1881.T. Lewis and W.H.M. Christie on the correction of the mean solar clock and errors in the 10 o'clock signal, 1884.Explanation by W.H. Preece to H.H. Turner that the failure of the time signal is due to poor batteries,...

Scope and Contents From the Series:

A principal series of scientific correspondence, drafts and notes totalling 242 items, letters written to J.C. Maxwell from many scientists and institutions of Maxwell's day dating from his early days at Cambridge University until the day of his death.

Scope and Contents (1) Letters regarding the existence of Neptune, 1846-1878Duplicate copies of collected correspondence on the investigations of J.C. Adams and U.J.J. Le Verrier into the existence of Neptune and in particular of the ensuing controversy over the name of the planet. There are also other letters concerning the minor planets and mathematical formula for their orbits, the Moon's equation and lunar acceleration. The correspondents include J.C. Adams, Sir George Airy, F.N.M. Arago, J....

Scope and Contents Correspondence with Dr Shettie concerning terrestrial magnetism, 1880.Correspondence with F.M. Almond concerning the effects of fog on a compass, 1880.Correspondence with F.B. Heate concerning his theory that terrestrial magnetism could be caused by electricity, 1880.Request from the Hydrographer of the Navy, 1881, on behalf of Captain Count Oscar Cassini, Austrian Naval Attaché, for information on how to obtain a copy of 'Instructions for observations on Earth's...

Scope and Contents Correspondence of David Gill with other astronomers, divided into sections by correspondent:J. Franklin Adams, 17 June 1896 - 29 March 1900.Professor A. Auwers, Berlin, 24 July 1880 - 15 January 1900.Sir Robert S. Ball, 20 May 1896 - 15 February 1900.Pietro Baracchi, Melbourne Observatory, 23 January 1897 - 19 January 1900.S.J. Braun, U.S. Naval Observatory, 2 March - 4 April 1900.Miss Agnes Clerke, London, 4 March 1897 - 18 February...

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Most are addressed to unnamed recipients.

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Cover page marked Lent 1902, but includes notes annotated up to 1906. Includes (reverse of p60) blank notepaper of the Honorary Secretary of Cambridge University Cruising Club.

Scope and Contents Correspondence with A. Auwers, Berlin, concerning Groombridge's Catalogue, 1901-1903, including copies of papers sent to him and Greenwich north polar distance observations and reductions.Correspondence with Leopold Schulof, Paris, concerning catalogues and corrections, 1906-1908.Correspondence concerning observations of heliometer comparison stars, 1898-1901.Correspondence with Sir David Gill and H.H. Turner concerning the apparent rotation of bright stars with...

Scope and Contents Correspondence concerning Sir George Airy's numerical lunar theory, 1880.Correspondence with S. Newcomb, Washington, concerning lunar theory, 1880.Letter from Archdeacon Kaye concerning the Moon's influence on terrestrial motion, 1880.Correspondence with T.E.V. Oppolzer concerning errors in the lunar tables, 1880.Correspondence with J.D. Forbes, Glasgow, concerning the trans-Neptunian planet, 1880.Correspondence with R.S. Ball concerning his 'elements...

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Notebooks.

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Photograph by Messrs. Bassano Limited, London with a compliments slip (and envelope). Also includes a copy of the picture of Ball for a 'Supplement to the Gownsman, October 14th, 1910 Cambridge Portrait Gallery Sir Robert Ball'.

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Published in a Supplement to 'The Gownsman', 14 Oct 1910.