[328] J. B. Bury, The Idea of Progress. An inquiry into its origin and growth, p. 1. (London, 1921.)
[329] W. R. Inge, The Idea of Progress, p. 9. The Romanes Lecture, 1920. (Oxford, 1920.)
[330] Author of The Passing of a Great Race, or the Racial Basis of European History. (New York, 1916.)
[331] See Stoddard Lothrop, The Rising Tide of Color against White World-Supremacy (New York, 1920); and William McDougall, Is America Safe for Democracy? (New York, 1921.)
[332] Thomas H. Huxley, Evolution and Ethics and Other Lectures, Lecture ii, pp. 46-116. (New York, 1894.)
[333] Adapted from F. S. Marvin, Progress and History, pp. 8-10. (Oxford University Press, 1916.
[334] Adapted from Herbert Spencer, Essays, I, 8-10. (D. Appleton & Co., 1899.)
[335] Adapted from Auguste Comte, Positive Philosophy, II, 124. (Trübner & Co., 1875.)
[336] Adapted from Leonard T. Hobhouse, Social Evolution and Political Theory, pp. 29-39. (The Columbia University Press, 1911.)
[337] From Lester F. Ward, Dynamic Sociology, II, 174-77. (D. Appleton & Co., 1893.)