ce of emotions and of intellectual
processes. The connexion between the general mental type and the general
social type should also be here dealt with.

In the second division may be conveniently placed apart, inquiries
concerning the relative mental natures of the sexes in each race. Under
it will come such questions as these:--What differences of mental mass
and mental complexity, if any, existing between males and females, are
common to all races? Do such differences vary in degree, or in kind, or
in both? Are there reasons for thinking that they are liable to change
by increase or decrease? What relations do they bear in each case to the
habits of life, the domestic arrangements, and the social arrangements?
This division should also include in its scope the sentiments of the
sexes towards one another, considered as varying quantitatively and
qualitatively; as well as their respective sentiments towards offspring,
similarly varying.

For the third division of inquiries may be reserved the more special
mental traits distinguishing different types of men. One class of such
specialities results from differences of proportion among faculties
possessed in common; and another class results from the presence in some
races of faculties that are almost or quite absent from others. Each
difference in each of these groups, when established by comparison, has
to be studied in connexion with the stage of mental evolution reached,
and has to be studied in connexion with the habits of life and the
social development, regarding it as related to these both as cause and
as consequence.

Such being the outlines of these several divisions, let us now consider
in detail the subdivisions contained within each.

* * * * *

I.--Under the head of general mental evolution we may begin with the
trait of--

1. _Mental mass._--Daily experiences show us that human beings differ in
volume of mental manifestation. Some there are whose intelligence, high
though it may be, produces little impression on those around; while
there are some who, when uttering even commonplaces, do it so as to
affect listeners in a disproportionate degree. Comparison of two such,
makes it manifest that, generally, the difference is due to the natural
language of the emotions. Behind the intellectual quickness of the one
there is not felt any power of character; while the other betrays a
momentum capable of bearing down opposition--a