[The nine primitive forms of the hand]
The hand is raised. Why? For what purpose? The presentation of the hand upon the surfaces of the cube will decide and specify.
By this presentation the nine movements of the hand correspond with the expressive movements of the arm.
Take any cube whatever,--a book, a snuff-box, or rather cast your eyes upon the foregoing chart, and examine it carefully.
There are three directions in the cube: horizontal, vertical and transverse. Hence there are six faces, anterior, superior, inferior, interno-lateral and externo-lateral.
Of what use are angles and faces? All this is necessary for those who would know the reason of the sentiments expressed by the hand. There are twenty-seven sorts of affirmation. We give nine of them with the six faces of the cube.
The Digital Face.
To place the hand, whether eccentric, concentric or normal, upon the upper face of the cube, is to hold, to protect, to control; it is to say: "I hold this under my protection."
To place the hand upon the external side-face of the cube, signifies to belong; it says: "All this belongs to me." It is the affirmation of the man who knows, who has had the thing in dispute under his own eyes, who has measured it, examined it in all its aspects. It is the affirmation of the connoisseur.
To apply the hand to the inner side of the face is to let go. Here is the sense of this affirmation: "You may say whatever you will, but I affirm in spite of every observation, in spite of all objection; I affirm whether or no."