Brooks Adams, America's Economic Supremacy (New York: Macmillan, 1900);

Henry Adams, The Education of Henry Adams (Wahington, D.C.: Privately printed, 1907);

Jane Addams, Democracy and Social Ethics (New York: Macmillan, 1902);

Addams, Newer Ideals of Peace (New York: Macmillan, 1907);

Addams, The Spirit of Youth and City Streets (New York: Macmillan, 1909);

James Lane Allen, The Reign of Law (New York: Macmillan, 1900);

Susan B. Anthony, Elizabeth Cady Stanton, Matilda Joslyn Gage, eds., The History of Woman Suffrage, 4 volumes (Rochester, N.Y.: Susan B. Anthony, 1887— 1902);

Ray Stannard Baker, Following the Color Line (New York: Doubleday, Page, 1908);

Baker (as David Grayson), Adventures in Contentment (New York: Doubleday, Page, 1907);

Charles W. Chesnutt, The Marrow of Tradition (Boston: Houghton Mifflin, 1901);

Charles H. Cooley, Human Nature and the Social Order (New York: Scribners, 1902);

Cooley, Social Organization: A Study of the Larger Mind (New York: Scribners, 1909);

Herbert David Croly, The Promise of American Life (New York: Macmillan...