Translated from the German by Jean Steinberg ; With an introd. by Peter Gay. Translated from the German by C. Riborg Mann and Robert A. Millikan. Translated from the German by John Currie. With a foreword by W. E. S. Turner. Translated from the German by Henry L. Brose. With fifteen diagrams. Translated from the German by J. Bernstein. With corrections and additions by Walter E. Thirring. Translated from the German by Eileen Hall. Illustrated by Cecil Leslie. Translated from the German by G. Field, with supplementary notes by the author. [translated from the German by Peter Cahn-Speyer]. Translated from the German by Charles J. Hyman. Translated from the German by Ralph E. Oesper.