[735] For J. W. Draper's partial anticipation of this result, see Ibid. vol. iv., 1872, p. 174.

[736] Phil. Mag., vol. xiv., p. 179, 1883.

[737] "The Solar and the Lunar Spectrum," Memoirs National Acad. of Science, vol. xxxii.; "On hitherto Unrecognised Wave-lengths," Amer. Jour. of Science, vol. xxxii., August, 1886.

[738] Astroph. Jour., vol. i., p. 162.

[739] Annals of the Smithsonian Astroph. Observatory, vol. i.; Comptes Rendus, t. cxxxi., p. 734; Astroph. Jour., vol. iii., p. 63.

[740] Phil. Mag., July, 1901.

[741] Comptes Rendus, t. xcii., p. 701.

[742] Nature, vol. xxvi., p. 589.

[743] Phil. Trans., vol. cxxxii., p. 273.

[744] Ann. de Chim., t. x., p. 321.