Educational Problems. 2 vols. New York and London, 1911.
Youth: Its Education, Regimen and Hygiene. New York, 1906.
Aspects of Child Life and Education. (By G. S. Hall and some of his pupils. Ed. by T. L. Smith.) Boston, 1912.
Contents of Children’s Minds on Entering School. Pedagogical Seminary, June 1891.
Housman, L. The Immoral Effects of Ignorance in Sex Relations. London, 1911.
**Key, Ellen. The Century of the Child.
The Younger Generation. (translated by H. G. Chater.) New York and London, 1914.
Lischnewska, M. Geschlechtliche Belehrung der Kinder. Reprinted from Mutterschutz, 1905, Heft 4 and 5.
**Moll, A. The Sexual Life of the Child. (Translated by Dr. Eden Paul.) London, 1912.
Morgan, A. The American Girl: Her Education, Her Responsibility, Her Recreation, Her Future. New York, 1913.