CHAPTER V. Disharmonies in the Organisation and Activities of the

DISHARMONIES IN THE ORGANISATION AND ACTIVITIES OF THE REPRODUCTIVE APPARATUS—DISHARMONIES IN THE FAMILY AND SOCIAL INSTINCTS 78

Remarks on the disharmonies in the human organs of sense and perception—Rudimentary parts of the reproductive apparatus—Origin and function of the hymen

Evolution and significance of the menstrual flow in women—Precocious marriage amongst primitive and uncivilised races—Disharmony between age of puberty and age of nubility—Age of marriage—Examples of disharmony in the development of the reproductive function

III

Disharmonies in the family instincts—Artificial abortion—Desertion and infanticide—Disharmonies in the social instincts