Restored by Viollet-Le-Duc, from a manuscript in the Bibliothèque nationale. He wears on his shoulders small metal plaques called "ailettes."] Old warriors dislike arbalists, those terrible crossbows, wound up with a winch, which enable base-born infantrymen to send heavy bolts clear through shirts of mail. They are most unknightly things. In 1139 a Lateran Council actually forbade their use against Christians. Arbalists certainly are useful in sieges for clearing ramparts or repelling attack; but they take so long to wind up after every shot that their value in open battles is limited. Crossbowmen, unless carefully protected, can be ridden down by cavalry. So for another hundred years the mailed knight will hold his own. Then may come the English long-bow (far more rapid in its fire than the arbalist), and the day of the infantry will return. [Sidenote: Training to Fight in Armor] Knights are continually fighting, or at least are exercising most violently in tourneys; yet the proportion of contestants slain is not very great. This is because their armor makes them almost invulnerable. After a battle, if you count the dead, you find they are usually all from the poor villein infantry or the luckless camp followers. Yet this harness has inconveniences. It is so heavy that the knight is the prisoner of his own armor. He can hardly mount his horse unassisted. Once flung from the saddle, he can scarcely rise without help. The lightest suit of armor in common use weighs at least fifty-five pounds. Powerful knights often wear much heavier. Yet to be able to move about with reasonable freedom, to swing one's shield, to control one's horse, and finally to handle lance or sword with great strength and precision, doing it all in this ponderous clothing of metal, are what squires like Aimery must learn to a nicety ere claiming knighthood. Wearing such armor, it is not remarkable that noblemen always prefer horseback, and fight on foot only in emergencies. The prime unit in a suit of armor is the hauberk. He who has a fine hauberk, light (considering the material), pliable, and of such finely tempered steel as to be all but impenetrable, has something worth a small manor land. On this hauberk will often depend his life.