FIRST PRINTING IN ORIGINAL WRAPPERS of Balmer’s two papers providing the formula for describing the spectral lines of hydrogen; of profound influence for Niels Bohr and the beginnings of quantum theory. More
BOHR, NIELS; KRAMERS, HENDRIK ANTHONY; SLATER, JOHN CLARKE.
FIRST EDITION of Bohr, Kramers, and Clarke’s influential paper that “contained drastic theoretical proposals concerning the interaction of light and matter." Printed simultaneously in German in Zeitschrift fur Physik. More