Christie, William Henry Mahoney, Sir, 1845 - 1922 (Knight, astronomer)
Found in 58 Collections and/or Records:
Admiralty correspondence, 1861 - 1875
Annual Meetings, 1881-1890, 1881 - 1890
Minutes of the Annual Meetings of the Board of Visitors, 1881-1890. The folder also contains a 'Memorandum on the Progress of the Numerical Lunar Theory' addressed to the Board of Visitors by G.B. Airy, 28 April 1883; an Address to the Board by the Astronomer Royal, 6 January 1887; and a copy of the manuscript of a proposed scheme by W.H.M. Christie for the increase of staff at the Royal Observatory, 4 June 1887.
Arctic expedition papers, 1873 - 1875
Astronomical methods and instruments, 1866 - 1870
Astronomical methods and instruments, 1871 - 1873
Astronomical methods and instruments, 1874 - 1875
Correspondence on new inventions and techniques, as well as trials of existing equipment, including the Greenwich spectroscope (with plans, drawings and suggestions), the transit circle, the altazimuth, the double edge micrometer and others. The correspondents include J.A. Broun, W. Huggins, W.H.M. Christie and W. De La Rue. There are also scales for old micrometers, a water pressure card, sketches for eyepieces and two photographs of a German heliometer.
Astronomical methods and instruments, 1875 - 1878
Astronomical methods and instruments, 1878 - 1880
Astronomical methods and instruments, 1878 - 1887
Comparisons of north polar distances, 1878 - 1879
Comparisons of north polar distances in the first and second seven year and nine year star catalogues and for circumpolar stars, with corrections to those comparisons. There is a catalogue of 384 transit stars and a short paper by A.M.W. Downing on refraction. The correspondents include W.H.M. Christie, A. d'Abbadie, J.R. Hind, A.V. Auwers, C.P. Smyth, T.H. Safford, E. Dunkin and O. Struve.
Correspondence and speeches, 1910 - 1980
Correspondence of Airy, Christie and others, 1876 - 1890
Correspondence on chronometers, 1868 - 1872
Correspondence on chronometers, 1875 - 1876
Correspondence on the ownership of, rates of, accounts of, listings of, repairs to, and packing of various chronometers. The volume includes papers on the defects and repairs to the Portsmouth sidereal clock; trials of new deck clocks; a report on the establishment and inspection of a new electric turret clock for London University; and enquiries on the Greenwich sidereal standard clock by J.W. Reffitt. The correspondents include F.J.O. Evans, R. Hall, W.B. Carpenter and W.H.M. Christie.
Correspondence on instruments, surveys and publications, 1880 - 1929
Correspondence on longitude, 1902 - 1928
Correspondence on publications, 1894 - 1911
Correspondence on solar eclipse, 1871 - 1874
Correspondence on staff appointments, 1880 - 1911
Correspondence on star catalogues, 1917 - 1934
Correspondence on the Cape Observatory and Survey, 1875 - 1879
Correspondence on the Edinburgh Equatorial, 1871 - 1876
Correspondence (chiefly copies) between C.P. Smyth and Sir H. Grubb on the Edinburgh Equatorial Telescope and a spectroscope. The letters cover the contract for the work, its construction and specification, and disagreement between the two parties as to whether the contract had been adequately fulfilled. Airy was the initial arbitrator, but W.H.M. Christie was finally appointed to resolve the controversy. There are also plans for the spectroscope.
Correspondence on time balls and signals, 1870 - 1875
Correspondence on time balls and signals, 1875 - 1878
Correspondence on visitor admissions, 1868 - 1876
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