far the pleasantest way of
love-making was in the open among flowers and fields; but a more purely
physical reason may, I think, be found in the exact resemblance between
the scent of semen and that of the pollen of flowering grasses. The first
time I became aware of this resemblance it came on me with a rush that
here was the explanation of the very exciting effect of a field of
flowering grasses and, perhaps through them, of the scents of other
flowers. If I am right, I suppose flower scents should affect women more
powerfully than men in a sexual way. I do not think anyone would be likely
to notice the odor of semen in this connection unless they had been
greatly struck by the exciting effects of the pollen of grasses. I had
often noticed it and puzzled over it." As pollen is the male sexual
element of flowers, its occasionally stimulating effect in this direction
is perhaps but an accidental result of a unity running through the organic
world, though it may be perhaps more simply explained as a special form of
that nasal irritation which is felt by so many persons in a hay-field.
Another correspondent, this time a man, tells me that he has noted the
resemblance of the odor of semen to that of crushed grasses. A scientific
friend who has done much work in the field of organic chemistry tells me
he associates the odor of semen with that produced by diastasic action on
mixing flour and water, which he regards as sexual in character. This
again brings us to the starchy products of the leguminous plants. It is
evident that, subtle and obscure as many questions in the physiology and
psychology of olfaction still remain, we cannot easily escape from their
sexual associations.

FOOTNOTES:

[53] H. Beauregard, _Matiere Medicale Zooelogique: Histoire des Drogues
d'origine Animate_, 1901.

[54] Professor Plateau, of Ghent, has for many years carried on a series
of experiments which would even tend to show that insects are scarcely
attracted by the colors of flowers at all, but mainly influenced by a
sense which would appear to be smell. His experiments have been recorded
during recent years (from 1887) in the _Bulletins de l'Academie Royale de
Belgique_, and have from time to time been summarized in _Nature_, e.g.,
February 5, 1903.

[55] David Sharp, _Cambridge Natural History: Insects_, Part II, p. 398.

[56] Mantegazza, _Fisiologia dell' Amore_, 1873, p. 176.

[57] Mantegazza (_L'Amour dans l'Humanite_, p. 94) refe