224) argues well how impossible it is to preserve children from sights and influence connected with the sexual life.
[26] Girls are not even prepared, in many cases, for the appearance of the pubic hair.

This unexpected growth of hair frequently causes young girls much secret worry, and often they carefully cut it off.
[27] G.S.Hall, _Adolescence_, vol.i, p.511.Many years ago, in 1875, the late Dr.Clarke, in his _Sex in Education_, advised menstrual rest for girls, and thereby aroused a violent opposition which would certainly not be found nowadays, when the special risks of womanhood are becoming more clearly understood.
[28] For a summary of the physical and mental phenomena of the menstrual period, see Havelock Ellis: _Man and Woman_, Ch.XI.The primitive conception of menstruation is briefly discussed in Appendix A to the first volume of these _Studies_, and more elaborately by J.G.Frazer in _The Golden Bough_.

A large collection of facts with regard to the menstrual seclusion of women throughout the world will be found in Ploss and Bartels, _Das Weib_.

The pubertal seclusion of girls at Torres Straits has been especially studied by Seligmann, _Reports Anthropological Expedition to Torres Straits_, vol.v, Ch.

VI.
[29] Thus Miss Lura Sanborn, Director of Physical Training at the Chicago Normal School, found that a bath once a fortnight was not unusual.