| Citation | Associate of the Royal College of Science. Assistant Professor of Physics (Astrophysics Department) Imperial College and Technology, South Kensington. Distinguished for his contributions to Astronomical Physics by spectroscopic observations of eclipses, solar preminences, and sunspots, and by experimental researches bearing on their interpretation. Associated in observations of total eclipses of the sun with Sir Norman Lockyer in 1893, 1896, 1898, 1900, and (with Prof Callendar) in 1905. Author of the following papers: - 'The Spectra of Metallic Arcs in an Exhausted Globe' (with H Page, (Proc Roy Soc, vol lxxii); 'Formulae for Spectrum Series' (with H Shaw, Astrophys Journ, vols xviii, xxi); 'The Spectra of Antarian Stars in relation to the Fluted Spectrum of Titanium' (Proc Roy Soc, vol lxxiii, 1904); 'Observations of the Spectra of Sunspots, Region C to D' (Monthly Notices Roy Astron Soc, vol lxv, 1905); 'Spectroscopic Observations of the Great Sunspot (February, 1905) and Associated Prominences' (ibid, vol lxv, 1905); 'Total Solar Eclipse, 1905, August 30' (with H L Callendar) (Proc Roy Soc, vol lxxvii, 1905); 'High Level Chromosperic Lines and their Behaviour in Sunspot Spectra' (Monthly Notices Roy Astron Soc, vol lxvi, 1906); 'Observations and Discussion of the Spectra of Sunspots, Region B to E' (Trans Internat Union Solar Research, vol i, 1906); 'Enhanced Lines of Iron in the Region F to C, and Note on Silicon in the Chromosphere' (Monthly Notices, Roy Astron Soc vol lxvii, 1906); 'The Fluted Spectrum of Titanium Oxide' (Proc Roy Soc, vol lxxx, 1907); 'The Origan of certain Bands in the Spectra of Sunspots' (Monthly Notices, Roy Astron Soc, vol lxvii, 1907); 'Report of Committee on Sunspot Spectra' (Trans Internat Union Solar Research, vol ii, 1908); 'The Spectrum of Scandium and its relation to Solar Spectra' (Phil Trans, A, 1908); 'The Reproduction of Prismatic Spectrum Photographs on a Uniform Scale of Wave-lengths' (Astrophys Journ, vol xxviii, 1908). |