The third lecture gives some muchneeded information concerning the structure of crystals, from the point of view of the quantum theory. Three Lectures on Atomic Physics. By Prof. Arnold Sommerfeld ...

Bohr went on to make enormous contributions to physics and, like Rutherford, to train a new generation of physicists. But his atomic model remains the best known work of a very long career.

OF the rare gases, argon is the only one of which the crystal structure is known (F. Simon and V. Simson, Zeit. f. Phys., 25, 160; 1924). We have now been able to determine the crystal structure ...