Introduction: forced migrations and scientific change after 1933 Mitchell G. Ash and Alfons Söllner; Part I. Physical and Medical Sciences: 1. Identification of emigration-induced scientific change Klaus Fischer; 2. Physics, life, and contingency: Born, Schrödinger, and Weyl in exile Skuli Sigurdsson; 3. Emigration from country and discipline: the journey of a German physicist into American photosynthesis research Alan D. Beyerchen; 4. The impact of German medical scientists on British medicine: a case study of Oxford, 1933-45 Paul Weindling; Part II. Psychology, Psychoanalysis, Pedagogy: 5. Emigré psychologists after 1933: the cultural coding of scientific and professional practices Mitchell G. Ash; 6. Psychoanalytic science: from Oedipus to culture Edith Kurzweil; 7. The impact of emigration on German pedagogy Heinz-Elmar Tenorth and Klaus Horn; Part III. Social Sciences: 8. Dismissal and emigration of German-speaking economists after 1933 Claus-Dieter Krohn; 9. Emigration of social scientists' schools from Austria Christian Fleck; 10. The Vienna Circle in the United States and empirical research methods in sociology Jennifer Platt and Paul K. Hoch; 11. From public law to political science? The emigration of German scholars after 1933 and their influence on the transformation of a discipline Alfons Söllner; Epilogue: the refugee scholar in America: the case of Paul Tillich Karen J. Greenberg.