[70] Survey, Vol. XXVI, p. 591.
[71] School Document, No. 10, 1910, Boston Public Schools, p. 133.
[72] "The Social Evil in Chicago," by the Vice Commission of Chicago, 1911, p. 242.
[73] "Child Labor at the National Capital," an address delivered in Washington, December, 1905, Pamphlet 23 of National Child Labor Committee.
[74] "The Social Evil in Chicago," by the Vice Commission of Chicago, 1911, p. 244.
[75] Bulletin 69 of Bureau of Census, "Child Labor in the United States," 1907, p. 170.
[76] Robert H. Sherard, "Child Slaves of Britain," p. 179.
[77] Great Britain, Report of Interdepartmental Committee on Physical Deterioration, 1904, Vol. II, Q. 10,440.
[78] J. G. Cloete, "The Boy and his Work" in "Studies of Boy Life in Our Cities," edited by E. J. Urwick (England), 1904, p. 121.
[79] E. J. Urwick, "Studies of Boy Life in Our Cities" (England), 1904, p. 305.