nder the domination of this fit of anger. In
other cases it has caused severe illness and convulsions.

The following experiment has been tried a number of times by a
well-known scientist: Several men have been put into a heated room.
Each man has been dominated for a moment by a particular passion of
some kind; one by an intense passion of anger, and others by different
other passions. The experimenter has taken a drop of perspiration from
the body of each of these men, and by means of a careful chemical
analysis he has been able to determine the particular passion by which
each has been dominated. Practically the same results revealed
themselves in the chemical analysis of the saliva of each of the men.

Says a noted American author, an able graduate of one of our greatest
medical schools, and one who has studied deeply into the forces that
build the body and the forces that tear it down: "The mind is the
natural protector of the body. . . . Every thought tends to reproduce
itself, and ghastly mental pictures of disease, sensuality, and vice of
all sorts, produce scrofula and leprosy in the soul, which reproduces
them in the body. Anger changes the chemical properties of the saliva
to a poison dangerous to life. It is well known that sudden and
violent emotions have not only weakened the heart in a few hours, but
have caused death and insanity. It has been discovered by scientists
that there is a chemical difference between that sudden cold exudation
of a person under a deep sense of guilt and the ordinary perspiration;
and the state of the mind can sometimes be determined by chemical
analysis of the perspiration of a criminal, which, when brought into
contact with selenic acid, produces a distinctive pink color. It is
well known that fear has killed thousands of victims; while, on the
other hand, _courage is a great invigorator_.

"Anger in the mother may poison a nursing child. Rarey, the celebrated
horse-tamer, said that an angry word would sometimes raise the pulse of
a horse ten beats in a minute. If this is true of a beast, what can we
say of its power upon human beings, especially upon a child? Strong
mental emotion often causes vomiting. Extreme anger or fright may
produce jaundice. A violent paroxysm of rage has caused apoplexy and
death. Indeed, in more than one instance, a single night of mental
agony has wrecked a life. Grief, long-standing jealousy, constant care
and corroding anxiety som