vibrations for so long stops nutrition of
all or one-half of the brain, and we have a case of "Hemiplegia," or the
wheels of one-half of the brain run so fast as to overcome some fountain
of nerve force and explode some cerebral artery in the brain and deposit
a clot of blood at some motor supply or plexus.

Thus we see men from over mental action fall in our National councils,
courts, manufactories, churches, and almost all places of great mental
activity. Slaves and savages seldom fall victims to paralysis of any
kind, but escape all such, for they know nothing of the strains of mind
and hurried nutrition. They eat and rest, live long and happy. The idea
of riches never bothers their slumbers. Physical injuries may and often
do wound motor, sensory and nutrient centers of brain; but the effect is
just the same, partial or complete suspension of the motor and sensory
systems.

If you burst a boiler by high pressure or otherwise, your engine ceases
to move. And just the same of an over-worked brain or body.

Hemiplegia. "The half" and "I strike." Paralysis of one half of the
body.[2]

[Footnote 2: Chambers.]

Hemiplegia is usually the result of a cerebral hemorrhage or embolism.
It sometimes occurs suddenly without other marked symptoms, but commonly
it is ushered in by an apoplectic attack and on return of consciousness
it is observed that one side of the body is paralyzed, the paralysis
being often profound in the beginning, and disappearing to a greater or
less extent at a later period.

Hemiplegia is much more rarely produced by a tumor. It then generally
comes on slowly, the paralysis gradually increasing as the neoplasm
encroaches more and more upon the motor tracks, though the tumor may be
complicated by the occurrence of a hemorrhage and a sudden hemiplegia.

A gradual hemiplegia may also be produced by an abcess or chronic
softening of the brain substance. Other conditions or symptoms
presented, will in such case, assist us to diagnose the nature of the
lesion.

CHAPTER IV.

EAR WAX AND ITS USES.

Nature Makes Nothing in Vain--A Successful Experiment--A Question
for Ages--The Position--Meaning of Life--Some Questions
Asked--Condition in Certain Diseases Caused by Cold--Cerumen in
Fluid State--Winter Kills Babies--Some Advice to Mothers--A Case in
Point--Connection of the brain and Other Nerves in
Digestion--Unaided Investigation.

NATURE MAKES NOTHING IN VAIN