[Footnote 9: The One I Knew the Best of All.]

[Footnote 10: The Study of the Boyhood of Great Men. Pedagogical
Seminary, October, 1894, vol. 3, pp. 134-156.]

[Footnote 11: The Vanishing Character of Adolescent Experiences.
Northwestern Monthly, June, 1898, vol. 8, p. 644.]

[Footnote 12: The Count of Boyville, by William Allen White. New York, 1899, p. 358.]

[Footnote 13: The Study of Adolescence. Pedagogical Seminary, June, 1891, vol. 1, pp. 174-195.]

[Footnote 14: Lancaster: The Psychology and Pedagogy of Adolescence.
Pedagogical Seminary, July, 1897, vol. 5, p. 106.]

[Footnote 15: Standards of Efficiency in School and in Life.
Pedagogical Seminary, March, 1903, vol. 10, pp. 3-22.]

[Footnote 16: See also Vittorio da Feltre and other Humanist
Educators, by W. H. Woodward. Cambridge University Press, 1897.]

[Footnote 17: See The Private Life of Galileo; from his Correspondence and that of his Eldest Daughter. Anon, Macmillan, London, 1870.]

[Footnote 18: See Sir David Brewster's Life of Newton. Harper, New
York, 1874.]