phenomena in men it is necessary
to observe carefully the phenomena of love-making not only among men, but
among animals, in which the impulse of contrectation plays a very large
part, and involves an enormous expenditure of energy. Darwin was the first
to present a comprehensive view of, at all events a certain group of, the
phenomena of contrectation in animals; on his interpretation of those
phenomena he founded his famous theory of sexual selection. We are not
primarily concerned with that theory; but the facts on which Darwin based
his theory lie at the very roots of our subject, and we are bound to
consider their psychological significance. In the first place, since these
phenomena are specially associated with Darwin's name, it may not be out
of place to ask what Darwin himself considered to be their psychological
significance. It is a somewhat important question, even for those who are
mainly concerned with the validity of the theory which Darwin established
on those facts, but so far as I know it has not hitherto been asked. I
find that a careful perusal of the _Descent of Man_ reveals the presence
in Darwin's mind of two quite distinct theories, neither of them fully
developed, as to the psychological meaning of the facts he was collecting.
The two following groups of extracts will serve to show this very
conclusively: "The lower animals have a sense of beauty," he declares,
"powers of discrimination and taste on the part of the female" (p.
211[21]); "the females habitually or occasionally prefer the more
beautiful males," "there is little improbability in the females of insects
appreciating beauty in form or color" (p. 329); he speaks of birds as the
most "esthetic" of all animals excepting man, and adds that they have
"nearly the same taste for the beautiful as we have" (p. 359); he remarks
that a change of any kind in the structure or color of the male bird
"appears to have been admired by the female" (p. 385). He speaks of the
female Argus pheasant as possessing "this almost human degree of taste."
Birds, again, "seem to have some taste for the beautiful both in color and
sound," and "we ought not to feel too sure that the female does not attend
to each detail of beauty" (p. 421). Novelty, he says, is "admired by birds
for its own sake" (p. 495). "Birds have fine powers of discrimination and
in some few instances it can be shown that they have a taste for the
beautiful" (p. 496). The "esthetic capacity" of f