C H R O N O L O G Y 1 9 2 5 8 1 5 March 28 First scientific lecture at the University of Buenos Aires (Appendix F). March 30 Statement on Zionism is published (Appendix E). Second lecture at the University of Buenos Aires (Appendix F). Visits the offices of La Prensa. Meets with Robert Koch. March 30–April 13 Completes “Flettner’s Ship” (Doc. 467). March 31 Visits the editorial office of Dos Volk and the Jewish quarter. Visits country estate of Hofer at “El Tigre.” April “Pan-Europe” (Doc. 463) is published in German. April 1 Flight over Buenos Aires on a German hydroplane together with Berta Wassermann-Bornberg. Afternoon visit at the Ministry of Foreign Affairs, then with the president of Argentina, Marcelo T. de Alvear. Visit at the Ethnological Museum. Third lecture at the University of Buenos Aires (Appendix F). Dinner with Leopoldo Lugones. Hebrew University of Jerusalem inaugurated. April 2 Visits the University of La Plata and the Museum of Natural History. Luncheon at the Jockey Club, hosted by university president Benito N. Anchorena. Scientific session held in AE’s honor at the university. Einstein Institute for Physics and Mathematics inaugurated at the Hebrew University. April 3 Luncheon at the Jockey Club in Buenos Aires, hosted by Rector José Arce. Fourth lecture at the University of Buenos Aires (Appendix F). The German original of “A Word for the Journey” (Doc. 470) is published. April 4 Lecture for the Facultad de Filosofía y Letras on “Las con- secuencias de la teoría de la relatividad en los conceptos del espacio y tiempo” (Appendix G). Meets with Robert Koch and Louis Louis-Dreyfus.