[7] C.W. SALEEBY, _Woman and Womanhood_, Chapter V. New York: Mitchell
Kennerley, 1911.

The differences in the nervous systems of men and women are now fairly
established on the quantitative side. Marshall has shown that if we
compare brain weight with the stature in the two sexes there is a slight
preponderance of cerebrum in males; but if the other parts of the brain
are taken into consideration, the sexes are equal.[8] Havelock Ellis has
carefully gathered the results of many investigators and declares that
woman's brain is slightly superior to man's in proportion to her
size.[9] But these quantitative differences are now felt to have
comparatively little significance; and of the relative qualities of the
brain substance in the two sexes we know nothing positively. In fact, if
we give a scientist a section of brain substance he cannot tell whether
it is the brain of a man or a woman.

[8] MARSHALL, _Journal of Anatomy and Physiology_, July, 1892.

[9] HAVELOCK ELLIS, _Man and Woman_, p. 97, Contemporary Science Series.

It is very probable that the average woman's mind is capable of much the
same activity as the average man's mind, given the same heredity and the
same training. They are both alike capable of remarkable feats of
imitation, and an ordinarily intelligent man could probably learn to
wear woman's clothes, and walk as she generally walks, so as to deceive
even a jury of women, if there were a motive to justify the effort.
Women also can perform, and they do perform, most of the feats of men.

At the same time it is desirable to note present differences in modes of