CHRONOLOGY, OCTOBER 1908-SEPTEMBER 1909 623 October 20 December 6 1909, January 19 January 22 January 23 February 11 February 23 March 6 April 13 May 7 May 24 July 6 July 9 August August 4 September 20 September 21 The winter semester at the University of Bern begins: Einstein teaches a course in the theory of radiation. "Remarks on Our Paper: 'On the Fundamental Electro- magnetic Equations for Moving Bodies'" (with Jakob Laub) (Vol. 2, Doc. 54). "Supplement" to "Remarks on Our Paper: 'On the Fun- damental Electromagnetic Equations for Moving Bod- ies'" (with Jakob Laub) (Vol. 2, Doc. 54). "Comment on the Paper of D. Mirimanoff: 'On the Fun- damental Equations . . .'" (Vol. 2, Doc. 55). "On the Present Status of the Radiation Problem" (Vol. 2, Doc. 56). Lectures on "Elektrodynamik und Relativitätsprinzip," to the Physikalische Gesellschaft Zürich. Alfred Kleiner outlines the need for a second chair of physics at the University of Zurich and recommends that Einstein be appointed to it. The winter semester at the University of Bern ends. "On the Present Status of the Radiation Problem" (with Walter Ritz) (Vol. 2, Doc. 57). Appointed Extraordinary Professor of Theoretical Phys- ics at the University of Zurich at an annual salary of 4500 francs. Attends Fribourg physics colloquium. Submits resignation to the Swiss Patent Office, effec- tive 15 October 1909. Granted an honorary doctorate in the physical sciences by the University of Geneva. Vacations with wife and son in the Upper Engadine, canton of Graubünden. Resigns Privatdozentur at the University of Bern. Participates in a discussion following Henry Sieden- topf's lecture, "On Ultramicroscopic Images" (Vol. 2, Doc. 58), at the Salzburg meeting of the Gesellschaft Deutscher Naturforscher und Ärzte (GDNA). Participates in a discussion following Arthur Szar- vassi's lecture, "The Theory of Electromagnetic