[48]. Report to State Board of Charities. R. Hunter, The Heritage of the Hungry.

[49]. The Hunger Problem in the Public Schools—What the Canvass of Six Big Cities Reveals. Special correspondence in the Philadelphia North American, May 21, 1905.

[50]. Idem.

[51]. Idem.

[52]. Idem.

[53]. Testimony before the Interdepartmental Committee on Physical Deterioration, the Royal Commission on Physical Training (Scotland), Reports of the London School Board on Underfed Children, etc.

[54]. Quoted by G. Stanley Hall, in Adolescence.

[55]. Idem.

[56]. Final Report (1882–1883) of the Anthropometric Committee appointed by the British Association in 1875.

[57]. The figures quoted are taken from an excellent little pamphlet, The Cost of Child Labor,—A Study of Diseased and Disabled Children, published by the Child Labor Committee of Pennsylvania.