LIST OF ILLUSTRATIONS (Illustrations follow p. 536) 1. Marie Winteler, Aarau, Switzerland, ca. mid-1890s. (Courtesy of Benvenuto Bandi and Franziska Rogger) 2. Einstein in Leyden, 11 December 1925. (Courtesy The Albert Einstein Archives, Quasha Collection, Hebrew University of Jerusalem) 3. Group portrait at the banquet for the fiftieth anniversary of Hendrik A. Lorentz’s doctorate, Haarlem, 11 December 1925. Front row includes Queen’s commissioner Antonie baron Röell, Aletta Lorentz-Kaiser, Hendrik A. Lorentz, Marie Curie, Johanna Leemhorst- Lorentz, Geertruida de Haas-Lorentz, Maria van Vollenhoven, and Rudolf Lorentz. Middle row includes Théophile de Donder, Einstein, Jean Perrin, Paul Langevin, Pieter Zeeman, and Paul Ehrenfest. Back row includes Arthur S. Eddington, Niels Bohr, Adriaan D. Fokker, Léon Brillouin, and Wander J. de Haas. (Courtesy Leo Baeck Institute, NY) 4. The Einsteins, with Rabindranath Tagore and his entourage, in their Berlin apartment, 14 September 1926. From left to right: Dr. Alwin Löwenthal, Einstein, Margot Einstein, Elsa Einstein, Prasanta Chandra Mahalanobis, Pratima Tagore-Devi, Tagore, and Nirmalkumari Mahalanobis. (Courtesy Leo Baeck Institute, NY) 5. Portrait by Gertrud Munckel, ca. 1926. (Courtesy Leo Baeck Institute, NY) 6. Judah L. Magnes, chancellor of the Hebrew University, with Tomáš Masaryk, President of Czechoslovakia, Jerusalem, 10 April 1927. (Courtesy Central Zionist Archives, Jerusalem) 7. Leo Kohn, Jerusalem, early 1950s. (Courtesy Central Zionist Archives, Jerusalem)