77/1928 Planck, M. Vorlesungen über die Theorie der Wärmestrahlung. Leipsic, J.A. Barth, 1906, 1st ed., VIII,222,(2)p., orig. cl.

- Bookblock shaken. Joints splitting.

= ANNOTATED COPY by P. EHRENFEST on p.15, p.148-154 and p.176f in pencil and pen and ink.