love in human life; now all this had for its _raison d'etre_ the
union of two cellules.... There is no organic act which
approaches this one in power and force of
differentiation."--HAECKEL.

What is the practical outcome to us of this early relation of the
sexes in Nature's scheme?

In attempting to answer this question it will be necessary to take an
apparently circuitous route, going back over some of the ground that
already has been covered; to examine in further detail the process of
sexual love as it presents itself among our pre-human ancestors. It is
well worth while to do this. If we can find in this way an answer, we
shall come very near to solving many of the most difficult of woman's
problems. At the same time we shall have made clear how deep-rooted
are the foundations of those passions of sex which agitate the human
heart, and are still the most powerful force amongst us to-day.

In the light of the facts I have briefly summarised, we have been able
in the former chapters to indicate how sexuality began, with the male
element developed from the primary female organism, his sole function
being her impregnation; how this was seized upon and continued through
the advantage gained by the mixing of the two germ-plasms, which, on
the whole, resembling one another somewhat closely, yet differ in
details, and thus introduce new opportunities of progress into the
life-elements; and how, in this way, differentiation of function
between the male and the female was set up. We saw, further, how the
development of the male, at first often living parasitically upon the
female, continued; but how, under certain conditions of life, such
parasitism was transferred to the female, so that it is she who is
sacrificed to the sex function; and, lastly, taking the extreme cases
of the bee-hive and the spider, we suggested certain warnings to be
drawn from these early parasitic relations between the sexes. It is
necessary now to penetrate deeper; to trace more fully the evolution
of the sexual passion, which, from this line of thought, may be said
to be the process which carried on the development and modification of
the male, creating him--as surely we may believe--by the love-choice
of the female. To do this we have once more to return to the
consideration, under a somewhat new aspect, of the relative position
of the female and the male in their love-courtships in some examples
among the humbler types of an