Bohr on Atomic Structure

As noted in the short post on thermodynamics, prior to 2018, the 95-year limit on copyright in the US limited digitization to works published in 1922 or before. Although this largely excluded early works on quantum mechanics, in 2014 I digitized two works by Niels Bohr. On the Quantum Theory of Line-Spectra, Parts I and II (1918) starts from Max Planck’s hypothesis of energy quantization and Ernest Rutherford’s discovery of the nucleus, and develops mathematical theories of line spectra and atomic structure. The Theory of Spectra and Atomic Constitution (1922) comprises three essays, on the spectrum of hydrogen, the spectra of other elements, and the structure of the atom.