No very extensive changes are made in the new edition. The chart of early radical labor organizations, which appeared in the first edition as Appendix I, has been omitted in this edition. There is reproduced in its place a copy of the original industrial organization chart prepared by "Father" T. J. Hagerty at the time of the launching of the I. W. W. in 1905 and sometimes referred to as "Father Hagerty's Wheel of Fortune". This chart is believed to be of some importance as illustrating the earlier ideas of the revolutionary industrial unionists on industrial organization in relation to union structure. It has been considerably amplified by W. E. Trautmann and published in his pamphlet One Great Union, and still further developed by James Robertson who has very recently built extensions upon it in furtherance of the shop-steward propaganda in the Pacific Northwest. His version is published in a pamphlet entitled Labor unionism and the American shop steward system (Portland, Oreg., 1919).