[(15)] Idem, p. 20.

[(16)] Appleton's Magazine, October, 1906.

[(17)] Hillquit, History of Socialism in the United States, pp. 280-281.

[(18)] Investigation of the Employment of Pinkerton Detectives, Senate Special Committee Report, 1892, p. xiii.

[(19)] Idem, p. ii.

[(20)] Idem, p. xii.

[(21)] Idem, p. xv.

[(22)] Investigation of the Employment of Pinkerton Detectives: House Special Committee Report, 1892, p. 224.

[(23)] Idem, p. 225.

[(24)] Report on the Chicago Strike of June-July, 1894, by the United States Strike Commission, p. xxxviii.