1. The Foundations of Modern Education, New York: Rhinehart and Company, Inc., 1942, p. 249.
2. The Foundations of Modern Education, New York: Rhinehart and Company, Inc., p. 315.
3. A History of the Problems of Education, New York: McGraw-Hill Book Company, Inc., 1947, p. 204.
4. John Amos Comenius, cited by Wilds, op. cit., p. 337.
5. op. cit., p. 208.