Scientist in the Service of Israel: The Life and Times of Ernst David Bergmann William B. Jensen, Henry Fenichel, Milton Orchin This is the first book-length study of the life and career of the Israeli chemist Ernst David Bergmann. It traces his birth and education in Germany; his decision, after the rise of Hitler, to immigrate to Palestine rather than to accept a position at Oxford; and his intimate 18-year association with Chaim Weizmann – not only as his closest scientific associate but also as Scientific Director of both the Sieff Institute and of the Weizmann Institute. Also described is his tragic falling out with Weizmann over the issue of the role of science in defense research, leading to his subsequent 18-year association with David Ben-Gurion as his personal science advisor and as Head of Scientific Research for the Israeli Defense Ministry, and to his pivotal role in the development of the Israeli atomic bomb. For the last 23 years of his life Bergmann also served as Professor of Organic Chemistry at the Hebrew University, where he trained a generation of Israeli chemists, as well as playing a key role in the organization of virtually every aspect of the present-day Israeli scientific community. William B. Jensen is Curator of the Oesper Collections in the History of Chemistry at the University of Cincinnati and recipient of the 2005 Edelstein Award for Outstanding Achievement in the History of Chemistry. Henry Fenichel is Professor Emeritus of Physics at the University of Cincinnati. His professional interests include experimental Low Temperature Physics and Optics. Over the years, he spent Academic Leaves in Israel at Tel Aviv University, the Weizmann Institute of Science and the Technion - Israel Institute of Technology. Milton Orchin is Distinguished Service Professor Emeritus of Chemistry at the University of Cincinnati and former Head of the Department of Chemistry as well as Director of the Hoke S. Greene Laboratory of Catalysis. He is coauthor of eight previous books on chemistry and of over 240 research publications, including several industrially important patents.