Race-Relations in Ancient Egypt (1951) examines the change in interpretation of the term ‘Greek’ which before Alexander the Great had stood for exclusiveness and indicated a citizen of a narrow Greek city-state, to the meaning of ‘a Greek mental outlook’ and ‘to have Greek culture’. Race relations between Greeks, Jews and Romans in Egypt and Alexandria are examined, and fresh light is thrown on the Hellenization of Egypt, the question of Jewish citizenship at Alexandria, and the growth of anti-Semitism in the ancient world.