Leipzig, Johann Ambrosius Barth, 1902. 8vo. In later black cloth with gilt lettering to spine. In "Annalen der Physik, Vierte Volge", Band. 7. Library plates pasted on to front free end paper and small library stamp to title page. Pp. 390-400. [Entire volume: VIII, 948, (1) pp. + 3 plates].
First printing of Planck's paper on the nature of white light.
Order-nr.: 49766