The Theory of Spectra and Atomic Constitution: Three Essays by Niels Bohr

First published in the year 1922, the present book ‘The Theory of Spectra and Atomic Constitution: Three Essays’ by Niels Bohr, professor of theoretical physics at University of Copenhagen at that time, consists of three essays. These essays, which here appear in English, all deal with the application of the quantum theory to problems of atomic structure, and refer to the different stages in the development of this theory.