zation having entered upon the scene, one may well ask: what
truly (which means chemically) lies behind all these differences
and divergences between male and female? What is the secret of the
variable internal secretion admixtures? You can tell us that the
recipes are different, the ingredients different, the results
different as a Nesselrode pudding is from, say, a rice pudding. But
what is the inner mechanism of the process? Since the masculine and
the feminine are but expressions of certain relative capacities and
potentialities, some single principle must run through the making of
both.

Recognizing of course the qualifications inherent in so broad a
statement the answer is: the handling of the lime salts. Life
originated, or at least lived and worked for long ages in sea water.
During these eras the salts of the sea have come to play a dominant
role in its being. The lime salts, because of their peculiar
properties of dissolving or precipitating themselves according to
electrical conditions in their medium, have come to occupy a
central position in all the processes of growth, metabolism and sex
differentiation. So it is that masculinity may be described as a
stable, constant state in the organism of lime salts, and the feminine
as an unstable, variable state of lime salts. The male skeleton
contrasts with the female as the stronger, larger, heavier and
straighter because it is an expression of a greater capacity to
utilize, store and keep lime in the system. Women throughout their
reproductive period are liable to rapid and pendulum-like fluctuations
of their lime content.

Menstruation, pregnancy, lactation, all draw upon the stores of lime,
sometimes depleting them to the point of softening of the bones and
wrecking the whole skeleton. The endocrines control the transport,
and course, combinations and permutations in the history of lime's
progress among the cells, and are in turn themselves affected by it.
Man is relatively free of these liabilities, and so remains man by
his freedom from the recurrent crises involving the lime salt reserve
which constitute the essence of the life story of woman.

THE SEX INDEX

It follows from these considerations that when it becomes necessary
to size the sex composition of a man or woman, a measurement becomes
establishable which may be spoken of as the sex index. To be able to
say of Mr. Llewylln Jones that he is sixty per cent masculine and
forty per cent feminine, o