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The author wishes to express thanks for the use of quotations from Karl Jung, and from the poets Robert Frost, Lillian Spencer and Vachel Lindsay; also for the material quoted in book reviews, as printed originally in the Industrial Worker, from books published by Harpers, Rutgers University Press, and Charles Kerr Co.
Thanks also to the following artists for chapter illustrations1: Fritz Eichenberg—cover drawing and chapters 4, 6, 7 & 8; Lowell Naeve—chapter 2; Ade Bethune—chapters 3, 5 & 9–12; and to Rik Anderson for the photograph opposite chapter 1.
1These are omitted in this reprint due to copyright.
