And if, further, we turn to those secondary manifestations of sexual emotion, which express themselves in the relations of human progenitors to their offspring, we shall find, if possible more markedly, that increase of intelligence and virility does not diminish but increases the strength of the affections. As the primitive, ignorant male, often willingly selling his offspring or exposing his female infants to death, often develops, with the increase of culture and intelligence, into the extremely devoted and self-sacrificing male progenitor of civilised societies; so, yet even more markedly, does the female relation with her offspring, become intensified and permanent, as culture and intelligence and virility increase. The Bushwoman, like the lowest female barbarians in our own societies, will often readily dispose of her infant son for a bottle of spirits or a little coin; and even among somewhat more mentally developed females, strong as is the affection of the average female for her new born offspring, the closeness of the relation between mother and child tends rapidly to shrink as time passes, so that by the time of adolescence is reached the relation between mother and son becomes little more than a remembrance of a close inter-union which once existed. It is, perhaps, seldom, till the very highest point of intellectual growth and mental virility has been reached by the human female, that her relation with her male offspring becomes a permanent and active and dominant factor in the lives of both. The concentrated and all-absorbing affection and fellowship which existed between the greatest female intellect France has produced and the son she bore, dominating both lives to the end, the fellowship of the English historian with his mother, who remained his chosen companion and the sharer of all his labours through life, the relation of St. Augustine to his mother, and those of countless others, are relations almost inconceivable where the woman is not of commanding and active intelligence, and where the passion of mere physical instinct is completed by the passion of the intellect and spirit.