(19) Münsterberg, Hugo. Social Studies of Today. Chap. ii, "The Educational Unrest," pp. 25-57. London, 1913.
(20) ——. American Problems. From the point of view of a psychologist. Chap. v, "The Intemperance of Women," pp. 103-13. New York, 1912.
(21) Corelli, Marie. "The Great Unrest," World Today, XXI (1912), 1954-59.
(22) Ferrero, Guglielmo. The Women of the Caesars. New York, 1911.
(23) Myerson, Abraham. The Nervous Housewife. Boston, 1920.
(24) Mensch, Ella. Bilderstürmer in der Berliner Frauenbewegung. 2d ed. Berlin, 1906.
C. Psychic Epidemics
(1) Hecker, J. F. C. The Black Death and the Dancing Mania. Translated from the German by B. G. Babington. Cassell's National Library. New York, 1888.
(2) Stoll, Otto. Suggestion und Hypnotismus in der Völkerpsychologie. 2d ed. Leipzig, 1904.
(3) Friedmann, Max. Über Wahnideen im Völkerleben. Wiesbaden, 1901.