2. Bohr (Niels) On the Quantum Theory of Line-Spectra, 3 parts, in Memoires de l’Academie Royale des Sciences..., original printed wrappers, small sticker, stamp and scored through reference number on upper wrappers, chip from fore-edge of first part, 4to, Copenhagen, 1918-22.
est. £1000 – £1500
The original part-issues containing the celebrated Nobel Laureate’s application of line-spectra theory from a uniform standpoint, and their relationship to ordinary mechanics and electrodynamics.