The spectrum of H2: The bands analogous to the Parhelium Line Spectrum. - Part III. The spectrum of H2: The bands analogous to the Parhelium Line Spectrum. - Part IV.
[London]: Reprinted from the Proceedings of the Royal Society, 1929. 8vo, pp. [2], 51-88; original green printed wrappers. Reprinted from the Proceedings of the Royal Society, A, Vol. 124, 1929. More