f the body, with their intercommunications, are
dependent upon consciousness for their knowledge of such facts of the
outer world as have a bearing on their individual operations, and they
are subject to the influence of consciousness as the medium that
interprets these facts._

It is unnecessary for us to go into this matter deeply. It is enough if
you clearly understand that, in addition to consciousness, the
department of mind that knows and directly deals with the facts of the
outer world, there is also a deep-seated and seemingly unconscious
department of mind consisting of individual organic intelligences
capable of receiving, understanding and acting upon such information as
consciousness transmits.

[Sidenote: Unconsciousness and Subconsciousness]

We have spoken of conscious and "seemingly unconscious" departments of
the mind. In doing so we have used the word "seemingly" advisedly.
Obviously we have no right to apply the term "unconscious" without
qualification to an intelligent mentality such as we have described.

"Unconscious" simply means "not conscious." In its common acceptation,
it denotes, in fact, an absence of all mental action. It is in no sense
descriptive. It is merely negative. Death is unconscious; but
unconsciousness is no attribute of a mental state that is living and
impellent and constantly manifests its active energy and power in the
maintenance of the vital functions of the body.

Hereafter, then, we shall continue to use the term consciousness as
descriptive of that part of our mentality which constitutes what is
commonly known as the "mind"; while that mental force, which, so far as
our animal life is concerned, operates through the sympathetic nerve
system, we shall hereafter describe as "_sub_conscious."

[Sidenote: Synthesis of the Man-Machine]

[Sidenote: Subserviency of the Body]

Let us summarize our study of man's physical organism. We have learned
that the human body is a confederation of various groups of living
cells; that in the earliest stages of man's evolution, these cells
were all of the same general type; that as such they were free-living,
free-thinking and intelligent organisms as certainly as were those
unicellular organisms which had not become members of any group or
association; that through the processes of evolution, heredity and
adaptation, there has come about in the course of the ages, a
subdivision of labor among the cells of our bodies and a conseque