class and which ignored revolutionary action. The communist uprising in Berlin in 1918, crushed by the government, had given rise to these satirical, radical, and political reviews. In 1947, he and Karl Volk co-authored a book, Pattern for World Revolution, writing under the pseudonym "Ypsilon". References Walter Fähnders: Verlagshausierer. Ein unveröffentlichter Brief von Franz Jung an Julian Gumperz. In: Sklaven (Berlin) 1997, Nr. 34, p. 17-20. 1898 births 1972 deaths Stockbrokers Frankfurt School Marxist theorists Social philosophy German sociologists American emigrants to Germany German male writers