Fig. 142.—The rows of Menhirs at Carnac.

When menhirs are arranged in circles, either single or several together, they are called cromlechs. They are vast circuits of stones, generally arranged round a dolmen. The respect which was considered due to the dead appears to have converted these enclosures into places of pilgrimage, where, on certain days, public assemblies were held. These enclosures are sometimes circular, as in England, sometimes rectangular, as in Germany, and embrace one or more ranks.

Fig. 143.—Dolmen with a Circuit of Stones (Cromlech), in the Province of Constantine.

Fig. 143 represents a dolmen with a circuit of stones, that is, a cromlech, which has been discovered in the province of Constantine; in fig. 144 we have a group of Danish cromlechs.