The martial spirit, by W. Millis.
The ideology of American expansion, by J. W. Pratt.
Businessmen and the open door, by C. S. Campbell, Jr.
The local stimulus-Hawaii, by W. A. Russ, Jr.
The missionary motive, by P. A. Varg.
The naval lobby, by R. Seager II.
Theodore Roosevelt, by D. H. Burton.
Brooks Adams, by C. Hirschfeld.
The changing concept of the open door, 1899-1910, by R. A. Esthus.
William Howard Taft and Cuba, 1906, by R. E. Minger.
Inevitable destiny, by A. K. Weinberg.
Imperialism and the liberal tradition, by L. Hartz.
Imperialists and anti-imperialists, by J. W. Rollins and T. J. McCormick.
The psychic crisis, by R. Hofstadter.
Looking backward, by L. J. Halle.