(4) Merriam, C. E. The American Party System. In press.
(5) Haynes, Frederick E. Third Party Movements since the Civil War, with Special Reference to Iowa. A study in social politics. Iowa City, 1916.
(6) Ray, P. O. An Introduction to Political Parties and Practical Politics. New York, 1913.
(7) Bryce, James. The American Commonwealth. 2 vols. New rev. ed. New York, 1911.
(8) Hadley, Arthur T. Undercurrents in American Politics. Being the Ford Lectures, delivered at Oxford University, and the Barbour-Page Lectures, delivered at the University of Virginia in the spring of 1914. New Haven, 1915.
(9) Lowell, A. Lawrence. Annual Report of the American Historical Association, 1901. 2 vols. "The Influence of Party upon Legislation in England and America" (with four diagrams), I, 319-542. Washington, 1902.
(10) Beard, Charles A. Economic Origins of Jeffersonian Democracy. New York, 1915.
(11) Morgan, W. T. English Political Parties and Leaders in the Reign of Queen Anne, 1702-1710. New Haven, 1920.
(12) Michels, Robert. Political Parties. A sociological study of the oligarchical tendencies of modern democracy. Translated by Eden and Cedar Paul. New York, 1915.
(13) Haines, Lynn. Your Congress. An interpretation of the political and parliamentary influences that dominate law-making in America. Washington, D.C., 1915.