.

Here are three genera, each of which gives three species.

_The Normal State._

When the head is erect, it is passive and neutral.

The head inclining laterally toward the interlocutor indicates
affection.

If in the inverse direction, opposite the interlocutor, sensualism is
indicated. This is in fact retroaction; in the first case we love the
soul, in the latter the form.

_The Eccentric State._

If the head bends backward it is the passional or vehement state.

The head inclined toward the interlocutor, denotes abandon, confidence.

The head turned away from the interlocutor, denotes pride, noble or
base. This is a neutral expression which says something, but not the
whole.

_The Concentric State._

The head lowered, that is, inclined forward, denotes the reflective
state.

If the head inclines toward the interlocutor, it is veneration, an act
of faith in the object we love.

If the head inclines away from the interlocutor, it is stratagem or
suspicion.

All other attitudes of the head are modifications of these. These nine
attitudes characterize states, that is, sentiments, but sentiments which
are fugitive. Either of these attitudes may be affected until it becomes
habitual. But there are movements which cannot be habitually affected,
which can only modify types and attitudes of the inflections of the
head. These are _fugitive movements_.

There are nine inflections or fugitive movements of the head:--

1. If a forward movement, it ends in an upright one, with elevated chin,
and indicates interrogation, hope, appellation, desire.

2. The same movement with the chin lowered, indicates doubt,
resignation.

3. A nod of the head, a forward movement, means confirmation, _yes_, or
_well_.

4. If the movement is brusque forward, it is the menace of a resolute
man.

5. The head thrown back means exaltation.

6. If the movement is brusque backward, it is the menace of a weak man.

7. There are rotative inflections from one shoulder to the other; this
is impatience, regret.

8. The rotary movement of the head alone signifies negation, that is
_no_.

If the movement ends toward the interlocutor, it is simple negation.

If the movement ends opposite to him, it is negation with distrust.

9. The rotative and forward inflection would denote exaltation.

The sense of this response,--"I do not know," when tidings of a friend
are asked, may be divined by an inflection of the