Chicago: The University of Chicago Press, 1930.
First American edition. xii, 186 pp. Crimson ribbed cloth lettered in gilt. Near Fine with former owner's name stamped on paste down and front free endpaper, bottom edge a little rubbed, in Very Good dust jacket, slightly soiled, worn at tips, price clipped, rubbed along edges, spine darkened, front panel corner creased with archival tissue mend to verso. Rare in jacket. The first book translated into English by the Nobel-winning German physicist. Item #140938361