o be true in almost every instance
could have been included in this course. But we prefer to make fewer
statements and have those of bedrock certainty. Therefore this course,
like all our courses, consists exclusively of those facts which have
been found to be true in every particular of people in normal health.

IMPORTANT

The Five Extremes

This book deals with PURE or UNMIXED types only. When you understand
these, the significance of their several combinations as seen in
everyday life will be clear to you.

The Human Alphabet

Just as you can not understand the meaning of a word until you know
the letters that go into the makeup of that word, you cannot analyze
people accurately until you get these five extreme types firmly in your
mind, for they are your alphabet.

Founded in Five Biological Systems

Each PURE type is the result of the over-development of one of the
five biological systems possessed by all human beings--the nutritive,
circulatory, muscular, bony or nervous.

Therefore every individual exhibits to some degree the characteristics
of all the five types.

The Secret of Individuality

But his PREDOMINANT traits and INDIVIDUALITY--the things that make him
the KIND of man he is--agree infallibly with whichever one of the five
systems PREDOMINATES in him.

Combinations Common in America

The average American man or woman is a COMBINATION of some two of
these types with a third discernible in the background.

To Analyze People

To understand human beings familiarize yourself first with the PURE or
UNMIXED types and then it will be easy and fascinating to spell out
their combinations and what they mean in the people all about you.

Postpone Combinations

Until you have learned these pure types thoroughly it will be to your
advantage to forget that there is such a thing as combinations. After
you have these extreme types well in mind you will be ready to analyze
combinations.

The Five Types

Science has discovered that there are five types of human beings.
Discarding for a moment their technical names, they may be called the
fat people, the florid people, the muscular people, the bony people and
the mental people.

Each varies from the others in shape, size and structure and is
recognizable at a glance by his physique or build. This is because his
type is determined by the preponderance within his body of one of the
five great departments or biological systems--the