(1) Papers relating to small planets and satellites, 1881-1912

Correspondence with Paris Observatory, 1881, concerning observations of minor planets for the period ending 31 December 1880.

Letter from D. Gill, Cape of Good Hope Observatory, 1881, regarding observations of minor planets to determine solar parallax.

Telegrams concerning the discovery of new minor planets, 1882-1892.

Correspondence with R. Bryant concerning perturbations of Sappho, 1885.

Correspondence with D. Gill, Cape of Good Hope, and W. Ellis, Yale, 1888, concerning the opposition of the minor planet Iris, November 1888.

Correspondence with F.A.H. Vinnon regarding elements of Jupiter's orbit and satellite elements, 1883.

Correspondence with the Royal Astronomical Society concerning errors in the tables of Jupiter's satellites, 1890.

Correspondence relating to the discovery of the fifth satellite of Jupiter, 1892, including letters in 'The Times' and a brief ephemeris.

Observations of, and correspondence concerning, the satellites of Mars, 1882-1883.

Correspondence concerning small planets and satellites, 1889-1893, including correspondence on D. Gill's ephemeris of Sappho; a letter to A. Auwers, with observations of Sappho; Menon on small planet reductions; observations of Vesta; Professor Luther's ephemeris of Glannke; errors in the ephemeris of Eukrite; and observations of Jupiter's fifth satellite.

Telegrams announcing the discovery of minor planets, 1893.

Letters and other papers relating to the discovery of the eighth satellite of Jupiter by P.J. Melotte, 1908-1909, including notes, printed material and correspondence on the award of a medal and diploma to Melotte by the Astronomical Society of Mexico.

Papers of 1909-1912 relating to a new minor planet discovered in photographic plates of Jupiter's eighth satellite and the publication of this finding in 'Astronomische Nachrichten'.

(2) Papers and general correspondence concerning satellites and minor planets, 1894-1908

Papers concerning observations of Jupiter's fifth satellite and reporting bad weather, with a note from H.H. Turner, Oxford, concerning data from American observations, 1894.

Correspondence with various individuals and press cuttings relating to the second and third satellites of the Earth, 1895-1898.

Letter from C.T. Whitwell, 1898, asking for observations of Jupiter's third satellite taken on 19 June 1884.

Correspondence with S. Newcomb concerning observations of a satellite of Neptune, 1901-1905.

Communication of observations of Jupiter's sixth satellite to 'Astronomische Nachrichten', 1905.

Correspondence with F.E. Ross, U.S.A., concerning the ephemeris of Saturn's ninth satellite, 1907-1908.

Correspondence with the U.S. Nautical Almanac Office concerning observations of Jupiter's seventh satellite and orbits of Saturn's ninth satellite, 1908.

Letter from H.H. Turner, Oxford, asking for information on observations of the Saturnian satellite by E. Halley, 1908.

Letter from the Revd Townsend, Tunbridge Wells, concerning the number of Jupiter's satellites, 1903.