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In 1930 the Vienna Circle and the Berlin Society took over the journal "Annalen der Philosophie" and made it the main journal of logical empiricism under the title "Erkenntnis", edited by Carnap and Reichenbach. In addition, the Vienna Circle published a number of book series: "Schriften zur wissenschaftlichen Weltauffassung" ("Monographs on the Scientific World-Conception", ed. by Schlick und Frank, 1928–1937), "Einheitswissenschaft" ("Unified Science", edited by Neurath, 1933–1939), and later the "International Encyclopedia of Unified Science" (edited by Neurath, Carnap and Charles W. Morris, 1938–1970).