A simple menace may be made by the knee. The foot is susceptible of great mobility. A slight movement quickly changes its significance; in passing from one agent to another, it is modified by many ellipses.

[Criterion of the Head Attitudes.]

These attitudes, being wholly characteristic, cannot be transmitted. They characterize the special rôle of the agent set in motion, while inflection is universal.

The head alone expresses trouble, dejection.

Dejection is in the head, as firmness is in the reins and exaltation in the shoulders.

All the movements of the head are communicated to all the active organs. The head is always in opposition to the arms. The head must be turned away from the leg which is advanced.

Men of small brain habitually carry their heads high. The head is lowered in proportion to the quantity of intelligence.

Examine the criterion for the fixed attitudes of the head.

Of the Eyes.

The eye, in common with all the other agents, has nine primary expressions, three genera and nine species.