² See Haney, History of Economic Thought.

³ See Mitchell, W. C., “Human Behavior and Economics, A Survey of Recent Literature,” Quarterly Journal of Economics, XXIX, 1 Google Scholar; J. M. Clark, “Economists and Modern Psychology,” Ibid., XXVI, 6; Z. C. Dickinson, “The Relation of Recent Psychological Developments to Economic Theory,” Ibid., XXXIII, 377.

⁴ See E. R. A. Seligman, The Economic Interpretation of History.

⁵ See G. P. Goooh, History and Historians in the Nineteenth Century; Croce, Theory and History of Historiography, especially ch. 7 on the “Historiography of Positivism;” Shotwell, History of History; Teggert, F. J., Processes of History (1918)Google Scholar; Merriam, John C., “Earth Sciences as the Background of History,” Scientific Monthly, Jan., 1921.Google Scholar

⁶ See Barnes, H. A., “The Contribution of Sociology to Political Science,” American Political Science Review, XV, 487 Google Scholar; Small, Albion W., “Sociology,” in Encyclopaedia Americana.Google Scholar

⁷ See Bowley, Measurement of Social Phenomena.

⁸ See Myers, , “The Influence of Anthropology on the Course of Political Science,” U'niv. of Calif. Publications.Google Scholar

⁹ Anthropogeographie; “Der Staat und sein Boden;” “Politische Geographie.”

¹⁰ See the review of these applications in a paper by Dr. Harold F. Gosnell, read before the American Political Science Association in Dec., 1922. Compare Hollingsworth, Applied Psychology.

¹¹ See Mill's Logic; Dunning, , A History of Political Theories, III Google Scholar, ch. 4.

¹² See Science of Legal Method, in Modern Legal Philosophy Series, ch. 10.

¹³ Especially chs. 23–28.

¹⁴ Explanation of current types of political theory are seen in Chipman, Nathaniel, Principles of Government (1793)Google Scholar; Grimke, F., Considerations on the Nature and Tendency of Free Institutions (1848)Google Scholar; Hildreth, Richard, The Theory of Politics (1853).Google Scholar

¹⁵ See Miscellaneous Writings.

¹⁶ See John Koren, History of Statistics.

¹⁷ See The Wisconsin Idea.

¹⁸ See also the much less critical study of Gustavus Myers, The History of the Supreme Court; also Charles H. Simons, Economic Forces in the History of the United States.

¹⁹ See Albion W. Small, Fifty Years of Sociology in the United States.

²⁰ Haney, History of Economic Thought.