accomplished, knowing that all progress is possible to love's power.
Exceptional cases, then, irregularities, it may be, in sexual
expression will henceforth no longer surprise us; they will find their
place in the infinite order of life. Such examples may come to be
regarded as filling in the chain; they form intermediate stages and
also mark the reappearance of earlier manifestations of the sexual
hunger. The new morality of love, which is having its birth amongst us
to-day, will be deeper and wider than the old morality, because it
will be founded on surer knowledge.

FOOTNOTES:

[50] Havelock Ellis, _Psychology of Sex_, Vol. VI. p. 422.

[51] _Evolution of Sex_, p. 8.

[52] _Animal Behaviour_, p. 265, quoted by Havelock Ellis, _Psychology
of Sex_, Vol. III. p. 28.

[53] Geoffrey Mortimer (W.M. Gallichan), _Chapters on Human Love_, pp.
17-18.

[54] Letourneau, _Evolution of Marriage_, p. 16.

[55] Letourneau, _Evolution of Marriage_, p. 12.

[56] _Evolution of Sex_, pp. 7-8.

[57] Epinas, _Soc. Animales_, p. 326; Darwin, _Descent of Man_, p.
433.

[58] Letourneau, _Evolution of Marriage_, p. 27.

[59] Ellis, _Psychology of Sex_, Vol. VI. p. 422.

[60] One of the most charming accounts of the loves of birds is given
in a chapter on "Music and Dancing in Nature," in a volume entitled,
_The Naturalist in La Plata_, by W.H. Hudson.

[61] Audubon, _Scenes de la Nature_, Vol. I. p. 350.

[62] Audubon, _Scenes de la Nature_, Vol. II. p. 50.

[63] E. Selous, _Bird Watching_, pp. 15-20; Havelock Ellis,
_Psychology of Sex_, Vol. III. p. 25.

[64] The jay is the only bird I know whose habits in this respect are
different. Noisy and active during the winter the male becomes
exceedingly quiet with the approach of the pairing season. This may
possibly be explained by the fact that the two sexes of these
beautiful birds are practically alike; thus there may be less
temptation for the male to show off as the handsomer bird.

[65] J. Lewis Bonhote, _The Birds of Britain_, p. 272. It is from this
work I have taken many facts relating to birds. See also A.R. Wallace,
_Darwinism_, p. 287.

[66] Wallace states that these love-movements are more commonly
performed by birds with dull plumage who have no special beauties to
display to their mates, but the custom, as we have seen, is by no
means confined to such birds.

[67] _Notes of a Naturalist on the "Challenger,"_ quoted by Wallace,
_Darwinism_, p. 287.

[68