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40 themselves up into a state of frenzy, in which a demoniacal power came over them, impelling them to acts from which in their sober senses they would have recoiled. They acquired superhuman force, and were as invulnerable and as insensible to pain as the Jansenist convulsionists of S. Medard. No sword would wound them, no fire would burn them, a club alone could destroy them, by breaking their bones, or crushing in their skulls. Their eyes glared as though a flame burned in the sockets, they ground their teeth, and frothed at the mouth; they gnawed at their shield rims, and are said to have sometimes bitten them through, and as they rushed into conflict they yelped as dogs or howled as wolves.

According to the unanimous testimony of the old Norse historians, the berserkr rage was extinguished by baptism, and as Christianity advanced, the number of these berserkir decreased.

But it must not be supposed that this madness or