Profs. C. Runge and F. Paschen's Researches on the Spectra of Oxygen, Sulphur, and Selenium¹

Abstract

IN the above paper Profs. Runge and Paschen have extended their important investigations to the spectra of oxygen, sulphur and selenium, and have discovered in the low temperature spectra of these elements a number of series which are very similar to those previously found for other elements. The principal characteristics of these series are too well known to need any further explanation; they may be represented by Kayser and Runge's original formula,