On the Quantum Theory of Radiation and the Structure of the Atom, by N 73087 [Full title: On the Quantum Theory of Radiation and the Structure of the Atom] [Full author's name: Niels Bohr] [Author: Niels Bohr] [Link: https://www.gutenberg.org/7/3/0/8/73087] [File: 73087-h.htm] Thanks to Laura Natal Rodrigues (Images generously made available by The Internet Archive.) Regards, Al