[posted] Posted (#72787, Bohr) !

On the Constitution of Atoms and Molecules, by Niels Bohr 72787 [Author: Niels Bohr] [Link: https://www.gutenberg.org/7/2/7/8/72787] [Files: 72787-h.htm] Thanks to Laura Natal Rodrigues (Images generously made available by The Internet Archive.) Regards, Al