Murus gallicus

Straight beams, connected lengthwise and two feet distant from each other at equal intervals, are placed together on the ground; these are morticed on the inside, and covered with plenty of earth.

This work, with respect to appearance and variety, is not unsightly, owing to the alternate rows of beams and stones, which preserve their order in right lines; and, besides, it possesses great advantages as regards utility and the defense of cities; for the stone protects it from fire, and the wood from the battering ram, since it [the wood] being mortised in the inside with rows of beams, generally forty feet each in length, can neither be broken through nor torn asunder.

[1] About 30 structures of this type have been excavated, mainly in Gaul, but extending to the upper reaches of the Rhine and Danube.

The example at the sea promontory fort of Le Camp d'Artus, at Huelgoat, was excavated and reported by Mortimer Wheeler.

At Manching an earlier murus gallicus wall was rebuilt in the pfostenschlitzmauer style.