BOHR, Niels (1885-1962). Typed letter signed ("N. Bohr") to James Franck, Copenhagen, 1 March 1922.

In German. One page, 215 x 282mm., on Institute of Theoretical Physics letterhead (heavy folds, some small partial fold separations, some reinforced with tape).

Bohr compliments his fellow atomic physicist James Franck, the same year in which Bohr would win the Nobel Prize for his research on atomic structure. Of Franck's manuscript, Bohr states "we were all very interested here, especially Klein and Rosseland, in your beautiful work, which stimulates many new ideas ... since I am about to travel to England, Klein and Rosseland will immediately send the manuscript back to you and ... would like to ask you a few small questions..." In 1922, Bohr won the Nobel Prize in Physics for his contributions to "the investigation of the structure of atoms" and his leading role in the blossoming field of quantum mechanics. Franck, with Gustav Hertz, helped confirm Bohr's model of the atom through a series of experiments in fluorescence, which earned the pair the Nobel Prize in Physics three years later.