Professor Starbuck, in his Psychology of Religion, has well brought together and clearly presented much of the evidence showing this intimate association between adolescence and religious manifestations. He finds (Chap. III) that in females there are two tidal waves of religious awakening, one at about 13, the other at 16, with a less significant period at 18; for males, after a wavelet at 12, the great tidal wave is at 16, followed by another at 18 or 19. Ruediger's results are fairly concordant ("The Period of Mental Reconstruction," American Journal of Psychology, July, 1907); he finds that in women the average age of conversion is 14, in men it is at 13 or 14, and again at 18.

G. Stanley Hall, "The Moral and Religious Training of Children and Adolescents," Pedagogical Seminary, June, 1891, p. 207. From the more narrowly religious side the undesirability of attempting to teach religion to children is well set forth by Florence Hayllar (Independent Review, Oct., 1906). She considers that thirteen is quite early enough to begin teaching children the lessons of the Gospels, for a child who acted in accordance with the Gospels would be "aggravating," and would generally be regarded as "an insufferable prig." Moreover, she points out, it is dangerous to teach young children the Christian virtues of charity, humility, and self-denial. It is far better that they should first be taught the virtues of justice and courage and self-mastery, and the more Christian virtues later. She also believes that in the case of the clergy who are brought in contact with children a preliminary course of child-study, with the necessary physiology and psychology, should be compulsory.