A comparison of the following pages with the German original (_Massenpsychologie und Ich-Analyse_, Internationaler Psychoanalytischer Verlag, Vienna, 1921) will show that certain passages have been transferred in the English version from the text to the footnotes. This alteration has been carried out at the author's express desire.
All technical terms have been translated in accordance with the Glossary to be published as a supplement to the _International Journal of Psycho-Analysis_.
J. S.