these experiments are
by no means conclusive in establishing a theory, yet they favor it.

It is wonderful that nervous matter can be so arranged as not only to
connect the various organs of the body, but at the same time to be the
agent of sensation, thought, and emotion. It is amazing, that a ray of
light, after traversing a distance of 91,000,000 miles, can, by falling
upon the retina, and acting as a stimulus, not only produce a
contraction of the pupil, but excite thoughts which analyze that ray,
instantly spanning the infinitude of trackless space! The same
penetrative faculties, with equal facility, can quickly and surely
discern the morbid symptoms of body and mind, become familiar with the
indications of disease, and classify them scientifically among the
phenomena of nature. The symptoms of disease which follow certain
conditions as regularly as do the signs of development, and mind itself
is no exception to this uniformity of nature. Thoughts result from
conditions, and manifest them as evidently as the falling of rain
illustrates the effect of gravity. The perceptive and highest emotive
faculties of man depend upon this simple, but marvelously endowed
nervous substance, which blends the higher spiritual with the lower
physical functions. The functions of the body are performed by separate
organs, distinguished by peculiar characteristics. To elucidate the
distinctions between dissimilar, mental faculties, we have assigned
their functions, with characteristic names, to different regions of the
head. As they unquestionably influence the bodily organs, we are
sustained by physical analogy, in our classification. Our knowledge of
the structure and functions of the nervous system is yet elementary, and
we are patiently waiting for scientists to develop its facts, and verify
them by experimental investigations and such researches as time alone
can bring to perfection. While real progress moves with slow and
measured foot-steps, the inspirations of consciousness and the
inferences of logic prepare the popular mind for cerebral analysis. No
true system can contradict the facts of our inner experience; it can
only furnish a more complete explanation of their relation to the bodily
organs. It should be expected that such careful and pains-taking
experiments, as are necessary to establish a science, will be preceded
by intuitive judgments and accredited observations, which may be, for a
time, the substitutes of those