ie--a tragedy involving the tree itself and both orchards. Measured
by every known standard, a man thus enticed away may be close to 100 per
cent efficient, but the man is only one ingredient in the compound from
which results are expected. To know and to rate his aptitudes, abilities,
personality, and possibilities is of the highest importance, but these
cannot be rated except in relation to his work and to his environment.
These are the other two ingredients in the compound. It is quite obvious
that all standards for judging men--and for self-analysis--must vary with
relation to the work they are to do and the environment in which they are
placed.

The important factors of any vocation may be classified very broadly
under three heads, namely, nature, position, and requirements. Chart I
gives a classification of work, with a few suggestive subdivisions, under
each of these three general heads. The meanings of the subdivisions listed
under "Nature" and "Position" are clear.

CHART I
/Physical
|Mental
|Combination of Physical and Mental
|Professional
/Nature..........|Commercial
| |Industrial
| |Fine
| |Coarse
| |Light
| \Heavy, etc.
|
Work....| /Executive
|Position........|Subordinate
| \Staff
|
| /Physical
| |Moral
| |Intellectual
\Requirements....|Emotional
|Volitional
|Aptitudes
|Experience
\Training, etc.

PHYSICAL REQUIREMENTS

Work has its physical requirements as to size, build, strength, endurance,
freedom from tendencies to disease, agility, and inherent capacity for
manual and digital skill. It may also have certain requirements as to
eyesight, hearing, reaction time, muscular co-ordination, sense of touch,
and even, in some particular places, sense of smell and sense of taste.
Moral requirements may vary from those of a hired gunman to those of a
Y.M.C.A. secretary or a bank cashier.

INTELLECTUAL REQUIREMENTS

Intellectual requirements and requirements in aptitudes, experience, and
training vary, of course, with every kind of work,