Volume 1 (c 420 pp): Introduction by Morgen Witzel; "The History of the Standard Oil Company", Ida Minerva Tarbell, New York - McClure, Phillips & Co, 1904, part one. Volume 2 (410 pp): "The History of the Standard Oil Company", Ida Minerva Tarbell, New York: - McClure, Phillips & Co, 1904, part two. Volume 3 (290 pp): "Lawless Wealth - the Origin of some Great American Fortunes", Charles Edward Russell, New York - B.W. Dodge, 1908. Volume 4 (284 pp) "The New Industrial Unrest - Reasons and Remedies", Ray Stannard Baker, New York - Doubleday, Page & Co, 1920.