624 CHRONOLOGY, SEPTEMBER 1909-APRIL 1910 September 21 October 2 October 15 October 18 October 22 December 2 December 11 1910 January 15 before January 18 February 15 March 5 April 19 Phenomena in Moving Bodies and the Energy Princi- ple" (Vol. 2, Doc. 59), at the GDNA. Lectures "On the Development of Our Views Concern- ing the Nature and Constitution of Radiation" (Vol. 2, Doc. 60) and participates in the following discussion (Vol. 2, Doc. 61) at the GDNA. Participates in a discussion following Fritz Hasenöhrl's lecture, "On the Transformation of Kinetic Energy into Radiation" (Vol. 2, Doc. 62), at the GDNA. Wilhelm Ostwald nominates Einstein for the Nobel Prize in Physics, citing his contribution in relativity. Assumes duties at the University of Zurich. The winter semester at the University of Zurich begins: Einstein teaches an introductory course in mechanics (Vol. 3, Doc. 1) and a course in thermodynamics, while also conducting a physics seminar. Registers change of address from Bern to Mousson- strasse 12, Zurich. Becomes a member of the Physikalische Gesellschaft of Zurich. Delivers inaugural lecture at the University of Zurich: "On the Role of Atomic Theory in Recent Physics." Dedication by Ernst Mach in Mach 1910: "Herrn Prof. A. Einstein verehrungsvoll d[er] V[erfasser]." Prove- nance: Einstein's personal library. Publishes first part of "The Principle of Relativity and Its Consequences in Modern Physics" (Vol. 3, Doc. 2). Writes a response to a draft version of Max Planck, "Zur Theorie der Wärmestrahlung" (Vol. 3, Doc. 3). Publishes second part of "The Principle of Relativity and Its Consequences in Modern Physics" (Vol. 3, Doc. 2). The winter semester at the University of Zurich ends. The summer semester at the University of Zurich begins: Einstein teaches the continuation of the mechanics course and a course in the kinetic theory of heat (Vol. 3, Doc. 4), while also conducting a physics seminar and directing a laboratory for advanced stu- dents (with Alfred Kleiner).