Labor: R. T. Ely, The Labor Movement in America (1902); T. V. Powderly, Thirty Years of Labor (1889); John Mitchell, Organized Labor (1903); T. S. Adams and H. Sumner, Labor Problems (1906).

Immigration: Frank Warne, The Immigrant Invasion (1913); Peter Roberts, The New Immigration (1912)—a study of the social and industrial life of Southeastern Europeans in America; H. P. Fairchild, Greek Immigration (1911), and Immigration: a World Movement and its American Significance (1913); P. F. Hall, Immigration and Its Effects on the United States (1908); I. A. Hourwich, Immigration and Labor (1912)—a study of the economic aspects of immigration and favorable to a liberal immigration policy; J. W. Jenks and W. J. Lauck, The Immigration Problem (1912)—particularly valuable for the data presented.

Socialism: Morris Hillquit, History of Socialism in the United States (1910); W. J. Ghent, Mass and Class (1904); J. W. Hughan, American Socialism of To-day (1912); W. E. Walling, Socialism as It Is (1912). On the newer aspects of socialism and trades-unionism: John Spargo, Syndicalism, Industrial Unionism, and Socialism (1913); A. Tridon, The New Unionism (1913); J. G. Brooks, American Syndicalism (1913); W. H. Haywood and F. Bohn, Industrial Socialism (1911); James O'Neal, Militant Socialism (1912).

Women: Edith Abbott, Women in Industry (1909); E. D. Bullock, Selected Articles on the Employment of Women (1911); E. B. Butler, Women in the Trades (1909); R. C. Dorr, What Eight Million Women Want (1910); I. H. Harper, Life and Work of Susan B. Anthony (1899-1908), History of the Movement for Woman Suffrage in the United States (1907); E. R. Hecker, Short History of Woman's Rights (1910); G. E. Howard, A History of Matrimonial Institutions (1904); Helen Sumner, Equal Suffrage (1909)—a study of woman suffrage in Colorado; C. P. Gilman, Woman and Economics (1900).

Controversy over the Judiciary: Gilbert Roe, Our Judicial Oligarchy (1912)—a criticism of recent tendencies in the American judicial system; B. F. Moore, The Supreme Court and Unconstitutional Legislation (1913)—a historical survey; W. L. Ransom Majority Rule and the Judiciary (1912); F. R. Coudert, Certainty and Justice (1913); G. G. Groat, Attitude of American Courts in Labor Cases (1911); C. G. Haines, The American Doctrine of Judicial Supremacy (1914).

Popular Government: G. H. Haynes, The Election of Senators (1906)—valuable for the question of popular election; C. A. Beard and Birl Shultz, Documents on the Initiative, Referendum and Recall (1912); E. P. Oberholtzer, Initiative, Referendum, and Recall in America (1911); Walter Weyl, The New Democracy (1912); H. Croly, The Promise of American Life (1909).

The South: A. B. Hart, The Southern South (1910); E. G. Murphy, Problems of the Present South (1904); H. W. Grady, The New South (1890); W. G. Brown, The Lower South (1902).

The Negro Problem: The Annals of the American Academy of Political and Social Science for September, 1913, is devoted to articles on the progress of the negro race during the last fifty years. A. P. C. Griffin, Select List of References on the Negro Question (1906, Library of Congress); R. S. Baker, Following the Color Line (1908)—valuable for the handicaps imposed on the negro in the South; J. M. Mathews, Legislative and Judicial History of the Fifteenth Amendment (1909); M. W. Ovington, Half a Man (1911)—status of the negro in New York; T. N. Page, The Negro (1904)—viewed as a Southern problem; A. H. Stone, Studies in the American Race Problem (1908)—discouraging view of the economic capacities of the negro; B. T. Washington, The Negro in the South (1907)—useful for economic matters; and The Future of the Negro (1900); A. B. Hart, Realities of Negro Suffrage (1905); G. T. Stephenson, Race Distinctions in American Law (1910).

The Growth of the West: H. H. Bancroft, Chronicles of the Builders of the Commonwealth (1891-1892), 7 vols.; J. C. Birge, The Awakening of the Desert (1912); C. C. Coffin, The Seat of Empire (1871); Katharine Coman, Economic Beginnings of the Far West (1912), 2 vols.—exploration and settlement; J. H. Eckels, The Financial Power of the New West (1905); F. V. Hayden, The Great West (1880)—resources, climate, Mormons, and Indians; J. S. Hittell, The Commerce and Industries of the Pacific Coast (1882); R. P. Porter and others, The West (1882)—review of social and economic development from the census of 1880; L. E. Quigg, New Empires in the Northwest (1889)—Dakotas, Montana, and Washington; Julian Ralph, Our Great West (1893)—survey of conditions; Joseph Schafer, A History of the Pacific Northwest (1905); W. E. Smyth, The Conquest of Arid Arizona (1900).

Monroe Doctrine: J. B. Moore, History of American Diplomacy (1905); J. W. Foster, A Century of American Diplomacy (1901); J. H. Latané, Diplomatic Relations of the United States and Spanish America (1900); A. B. Hart, Foundations of American Diplomacy (1901); Hiram Bingham, The Monroe Doctrine (1913)—a severe criticism of the Doctrine.