Author: H. J. Bogen (auth.), Dr. med. Günther F. Bahr, Dr. Hans J. Bogen, Dr. Leo Brauner, Professor Dr. Erwin Bünning, Professor Dr. T. Caspersson, Professor Dr. phil. Runar Collander, Dr. H. B. Currier, Professor Dr. Horst Drawert, Professor Dr. Franz Duspiva, Dr. Frank Eberhardt, Dr. Emanuel Epstein, Dozent Dr. Hermann Fischer, Dr. R. J. Helder, Dozent Dr. Heinz Kern, Docent Dr. med. Georg Klein, Dr. Paul J. Kramer, Dr. J. Levitt, Dr. Bernard S. Meyer, Dr. Adèle Millerd, K. Paech, Dr. R. N. Robertson, W. Seifriz, Professor Dr. Wilhelm Simonis, Dr. D. C. Spanner, Dr. phil. Eduard Stadelmann, Dr. M. G. Stålfelt, Dr. Otto Stocker, Dr. C. Ralph Stocking, Professor Dr. Karl Umrath, Dozent Dr. phil. Veijo Wartiovaara, H. Ullrich (eds.)