Citation | Chief Assistant (since 1894) Royal Observatory, Greenwich. Late Fellow of Trinity College, Cambridge. Secretary of the Royal Astronomical Society. Author of various papers on mathematics and astronomy, among which may be mentioned: - 'The Potential of Ellipsoids of Variable Densities' (Quart Journ, Pure and Applied Mathematics No 99, 1891); 'The Potential of an Anchor Ring' (two papers - Phil Trans, 1893, pp 43-95 and 1041-1106); 'The Motion of a Satellite about a Spheroidal Planet' (Quart Journ, Pure and Applied Mathematics No 105, 1894); 'The Effect of Personality in Observations of the Sun's Right Ascension on the Determination of the Position of the Ecliptic' (with W G Thackeray, Monthly Notices, Roy Astron Soc, vol liv, 1894); 'Account of the Measurement and Comparison of a set of four Astrographic Plates' (with W H M Christie, ibid, vol lv, 1894); 'On the Determination of the Positions of Stars for the Astrographic Catalogue at the Royal Observatory, Greenwich' (with W H M Christie, ibid, vol lvi, 1896); 'New Division Errors of the Greenwich Transit Circle and their Effect upon the observed N P D's (with W G Thackeray, Mem Roy Astron Soc, vol liii, 1899); 'Comparison of the Diameters of the Images of Stars on the Greenwich Astrographic Plates, with the Magnitudes given in the 'Bonn Durchmusterung' (with H P Hollis, Monthly Notices, Roy Astron Soc, vol lx, 1899). Distinguished as an astronomer. |