| Citation | Indian Civil Service (retired). Distinguished for his researches in the domain of the optical refractivity of gases and vapours. His investigations have practically completed the subject in so far as elementary gases and vapours are concerned, and an important relation connecting the refractivities of the elements has been diclosed by his work. He has published the following : 'Arrangements of Bands in the Positive Spectrum of Nitrogen' (Phil Mag, 1902); 'Refractivities of the Inert Gases' (Nature, 1902); 'Refractivities of the Elements' (ibid, 1902); 'On the Refractive Indices of the Elements' (Phil Trans, A, vol cciv); 'On the Refractive Index of Gaseous Fluorine' (ibid, vol ccv); 'On the Refractive Indices of Gaseous Potassium, Zinc, Cadmium, Mercury, Arsenic, Selenium and Tellurium' (ibid, vol ccvii); 'On the Dispersion of Gaseous Mercury, Sulphur, Phosphorus, and Helium' (Proc Roy Soc, vol lxxx); 'On the Refractive Index of Gaseous Nitric Oxide, Sulphur Dioxide and Sulphur trioxide' (ibid, vol lxxx); 'On the Refractive Dispersion of Krypton and Xenon and their Relations to those of Helium and Argon' (ibid, vol lxxxi); 'Gaseous Refractive Indices' (Science Progress, 1908); 'On the Refraction and Dispersion of Air, Oxygen, Nitrogen, and Hydrogen and their Relations' (Proc Roy Soc, vol lxxxiii); 'On the Refraction and Dispersion of SO2 and H2S and their Relations to that of their Constituents'(ibid, vol lxxxiii); 'On the Refraction Dispersion of Neon' (ibid, vol lxxxiii); 'The Refractivity of Radium Emanations' (Nature, 1909); 'On the Refraction and Dispersion of Argon and Redetermination of the Dispersion of Helium, Neon, Krypton, and Xenon' (Proc Roy Soc, vol lxxxiv); 'An Optical Method of Measuring Vapour Pressures; Vapour Pressure and Apparent Superheating of Solid Bromine' (ibid, vol lxxxv); 'New Determinations of some Constants of the Inert Gases, showing Relations between Viscosities and Refractive Indices' (Phil Mag, 1911) |