x x x v i i i L I S T O F I L L U S T R A T I O N S 9. Hendrik A. Lorentz in his study in Haarlem, the Netherlands, with a photo of Einstein on the wall, 1920s. (Courtesy Rijksmuseum Boerhaave, Leyden) 10. David Hilbert, Göttingen, later years. (Photo by Hanna Kunsch, courtesy the Niedersächsische Staats- und Universitätsbibliothek Göttingen, Sammlung Voit, D. Hilbert) 11. Funeral procession for Hendrik A. Lorentz, Haarlem, the Netherlands, 9 February 1928. (Photo by N. V. Unified Fotobureaux, courtesy BNA Photographic, Alamy Stock Photo) 12. Einstein playing at a festive concert for the opening of the Davoser Hochschulkurse, with pianist Dora Brunner and cellist Walfried Liebscher, 24 March 1928. (Charcoal drawing by Emmerich Haas, courtesy The Albert Einstein Archives, Hebrew University of Jerusalem) 13. Einstein and Franz Oppenheimer, Davos, March 1928. (Courtesy The Albert Einstein Archives, Hebrew University of Jerusalem) 14. Participants at the Davoser Hochschulkurse, March 1928. Left to right: Friedrich Hertz, Arthur Liebert, Edmond Goblot, Friedrich Lenz, Franz Oppenheimer, Clara Medicus, Paul Lips, Lucien Lévy-Bruhl, Paul Müller, Fritz Medicus, unknown boy, Einstein, Hans Driesch, unknown journalist, Paul Tillich, Rudolf Hecker, Elsa Einstein, Robert Michels, Jean Piaget, Hans Naumann, unknown woman, Henriette Blondel, Charles Blondel. (Photo by Emil Meerkämpfer, courtesy ETH-Bibliothek Zurich, Bildarchiv) 15. Convalescing on the Baltic coast at Scharbeutz, Schleswig-Holstein, summer 1928. (Courtesy bpk Bildagentur, Staatsbibliothek zu Berlin – Preussischer Kulturbesitz, Handschriftenabteilung, Art Resource, NY) 16. Emanuel Libman, New York, ca. 1932. (Courtesy The Arthur H. Aufses Jr., MD Archives, Icahn School of Medicine at Mount Sinai/Mount Sinai Health System, New York, NY) 17. Leopold Lichtwitz, Hamburg, 1928. (Photo by Minya Diez-Dührkoop, courtesy Altonaer Museum, Hamburg) 18. Scharbeutz landing stage, postcard, recto of Abs. 637, after 5 July 1928. (Courtesy The Albert Einstein Archives, Hebrew University of Jerusalem) 19. Alfred Einstein, Vienna, March 1927. (Courtesy Foto Fayer and the Öster- reichische Nationalbibliothek, Vienna)