purposive, and elaborate means of self-exhibition in the adult
male and the charming coquetry in the adult female, in their
love-relations." (Sanford Bell, "The Emotion of Love Between the
Sexes," _American Journal Psychology_, July, 1902; cf.
"Showing-off and Bashfulness," _Pedagogical Seminary_, June,
1903.)

If, in the light of the previous discussion, we examine such facts as
those here collected, we may easily trace throughout the perpetual
operations of the same instinct. It is everywhere the instinctive object
of the male, who is very rarely passive in the process of courtship, to
assure by his activity in display, his energy or skill or beauty, both his
own passion and the passion of the female. Throughout nature sexual
conjugation only takes place after much expenditure of energy.[34] We are
deceived by what we see among highly fed domesticated animals, and among
the lazy classes of human society, whose sexual instincts are at once both
unnaturally stimulated and unnaturally repressed, when we imagine that the
instinct of detumescence is normally ever craving to be satisfied, and
that throughout nature it can always be set off at a touch whenever the
stimulus is applied. So far from the instinct of tumescence naturally
needing to be crushed, it needs, on the contrary, in either sex to be
submitted to the most elaborate and prolonged processes in order to bring
about those conditions which detumescence relieves. A state of tumescence
is not normally constant, and tumescence must be obtained before
detumescence is possible.[35] The whole object of courtship, of the mutual
approximation and caresses of two persons of the opposite sex, is to
create the state of sexual tumescence.

It will be seen that the most usual method of attaining tumescence--a
method found among the most various kinds of animals, from insects and