File:Assise.fortification.Carcassonne.png

...nous nous bornerons à signaler une de ces dispositions intérieures de la structure des fortifications de Carcassonne à la fin du XIII^e siècle. Quelques-unes des tours les plus exposées aux efforts de l'assaillant sont munies, à leur partie antérieure, de becs saillants destinés à éloigner les pionniers et à offrir une résistance puissante aux coups du mouton (bélier). Or voici, dans ce cas particulier, comment est disposé l'appareil des assises (155)...

This image comes from Dictionary of French Architecture from 11th to 16th Century (1856) by Eugène Viollet-le-Duc (1814-1879).

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