variety of our psychic faculties, intellectual,
emotional, sensitive, passional, and physiological, requires a
corresponding multiplicity in the nervous apparatus; and this
incalculably great multiplicity we find in the brain.

The crude, mechanical idea that all the organs of the brain should be
distinctly marked and separated by membranous walls or obvious changes
of structure, is very unscientific; for even in the spinal cord, which
is more easily studied, we do not find such separation between the
widely distinct functions of sensibility and motility. Their nerve
fibres run together undistinguished, and it is only by the study of
pathological changes that we have been able to distinguish the course
of the motor fibres, which to the most careful inspection are
indistinguishable from the sensitive.

Moreover, the functions of the brain are not like those of the spinal
cord, of a widely distinct and opposite character in adjacent fibres,
but exhibit a gradual variation, like the blending colors of the
rainbow. The sensitive or psychic individual who touches any part of
the head and feels an impression of the emotional, intellectual, or
impulsive function in the subjacent convolution of the brain, will
find the impression gradually changing as he moves his finger along
the surface, until, after passing half around the cerebrum, he will
feel an influence exactly opposite to that with which he started.

As there are many millions of sensitive persons who are capable of
receiving these impressions from the brain, we cannot but wonder at
the unanimous _indifference_ (which some may hereafter call stupidity)
which hinders the medical profession and scientists generally from
becoming acquainted with such facts, which I have proclaimed and
demonstrated until I have grown weary of attempting to instruct wilful
ignorance. Not only does the nervaura, direct from the brain convey
such impressions of organic action, but almost any substance held for
a few moments in contact with any part of the head will absorb enough
of the local nervaura to convey a distinct impression to a sensitive,
similar to that derived directly from the head.

Although the organs of the brain are thus distinct, they are not
distinct like the spokes of a wheel, each totally independent of the
other and fixed or invariable in its own simple character; for all
organs have double functions, and a great variety in their degree of
manifestation.

The doubl