Introduction to the Science of Sociology

by Robert Ezra Park; E. W. Burgess

(12) Peterson, J. "The Functioning of Ideas in Social Groups," Psychological Review, XXV (1918), 214-26.

IV. MASS MOVEMENTS

(1) Bryce, James. "Migrations of the Races of Men Considered Historically," Contemporary Review, LXII (1892), 128-49.

(2) Mason, Otis T. "Migration and the Food Quest: A Study in the Peopling of America," American Anthropologist, VII (1894), 275-92.

(3) Pflugk-Harttung, Julius von. The Great Migrations. Translated from the German by John Henry Wright. Philadelphia, 1905.

(4) Bradley, Henry. The Story of the Goths. From the earliest times to the end of the Gothic dominion in Spain. New York, 1888.

(5) Jordanes. The Origin and Deeds of the Goths. English version by Charles C. Mierow. Princeton, 1908.

(6) Archer, T. A., and Kingsford, C. L. The Crusades. New York, 1894.

(7) Ireland, W. W. "On the Psychology of the Crusades," Journal of Mental Science, LII (1906), 745-55; LIII (1907), 322-41.

(8) Groves, E. R. "Psychic Causes of Rural Migration," American Journal of Sociology, XXI (1916), 623-27.