by Theodor Schmelcher ; translated by Les. J. Croyston. by Georg Masing, translated by F. C. Thompson. by Heinrich Zollinger ; translated by Harry E. Nursten. by Rozsa Peter ; translated by Z. P. Dienes. by Guy Seguier ; translated by E. Griffin. by Harro G. Heuser ; translated by John Horv?ath. by Konrad Guenther ; translated by Bernard Miall.