(13) Wundt, Wilhelm. Völkerpsychologie. Eine Untersuchung der Entwicklungsgesetze von Sprache, Mythus, und Sitte. Band I, "Die Sprache." 3 vols. Leipzig, 1900-1909.
(14) Tarde, Gabriel. The Laws of Imitation. Translated from the 2d French ed. by Elsie Clews Parsons. New York, 1903.
B. Nationalization and Denationalization
(1) Bauer, Otto. Die Nationalitätenfrage und die Sozialdemokratie. Wien, 1907. Chap. vi, sec. 30, "Der Sozialismus und das Nationalitätsprinzip," pp. 507-21. (In: Adler, M. and Hildering, R. Marx-Studien; Blätter zur Theorie und Politik des wissenschaftlichen Sozialismus. Band II. Wien, 1904.
(2) Kerner, R. J. Slavic Europe. A selected bibliography in the western European languages, comprising history, languages, and literature. "The Slavs and Germanization," Nos. 2612-13, pp. 193-95. Cambridge, Mass., 1918.
(3) Delbrück, Hans. "Das Polenthum," Preussische Jahrbücher, LXXVI (April, 1894), 173-86.
(4) Warren, H. C. "Social Forces and International Ethics," International Journal of Ethics, XXVII (1917), 350-56.
(5) Prince, M. "A World Consciousness and Future Peace," Journal of Abnormal Psychology, XI (1917), 287-304.
(6) Reich, Emil. General History of Western Nations, from 5000 B.C. to 1900 A.D. "Europeanization of Humanity," pp. 33-65, 480-82. (Vols. I-II published.) London, 1908.
(7) Thomas, William I. "The Prussian-Polish Situation: an Experiment in Assimilation," American Journal of Sociology, XIX (1913-14), 624-39.