SELECTED BIBLIOGRAPHY

I. INTERACTION AND SOCIAL INTERACTION

(1) Lotze, Hermann. Metaphysic. Vol. I, chap, vi, "The Unity of Things." Oxford, 1887.

(2) Ormond, Alexander T. Foundations of Knowledge. Chap, vii, "Community or Interaction." London and New York, 1900.

(3) Gumplowicz, L. Der Rassenkampf. Sociologische Untersuchungen. Pp. 158-75. Innsbruck, 1883.

(4) Simmel, Georg. "Über sociale Differenzierung, sociologische und psychologische Untersuchungen." Staats- und Socialwissenschaftliche Forschungen, edited by G. Schmoller. Vol. X. Leipzig, 1891.

(5) Royce, J. The World and the Individual. 2d ser. "Nature, Man, and the Moral Order," Lecture IV. "Physical and Social Reality." London and New York, 1901.

(6) Boodin, J. E. "Social Systems," American Journal of Sociology, XXIII (May, 1918), 705-34.

(7) Tosti, Gustavo. "Social Psychology and Sociology," The Psychological Review, V (July, 1898), 348-61.

(8) Small, Albion W. General Sociology. Chicago, 1905.