We must not, however, omit to mention one serious objection. Roman historians, exact as is their description of Gaul, Britannia, and Germania, are silent as to stone monuments. Tacitus does not refer to Stonehenge or to Avebury. Cæsar was present at the naval battle between his own fleet and that of the Veneti, in the Gulf of Morbihan, and if the megalithic monuments of Carnac were then there, would they not have arrested the attention of the great captain? This silence is the more inexplicable as one of the earliest geographers mentions the stone of Iapygia; Ptolemy speaks of a similar stone on the shores of the ocean; Strabo, of a group of dolmens near Cape Cuneus; Quintus Curtius, of an important alignment in Bactriana; Pliny, who mentions a leaning pillar in Asia Minor, says nothing of the megalithic monuments of Gaul, which he crossed several times. Moreover, Ausonius, Sidonius, Appollinaris, and Fortunatus, who are so eager to glorify their own land, maintain a similar silence with regard to these structures. Sulpicius, Severus, and Gregory of Tours, old chroniclers of French history, also pass them over without a word. More than that, Madame de Sévigné, who was stopping at Auray in 1689, and visited its environs, writes to her daughter of all she has seen and done, without alluding to the alignments of Carnac, or of Erdeven, which were, of course, much more complete in her day than in ours. In fact, they are mentioned for the first time by Sauvagère, in his “Recueil des Antiquites de la Gaule,” in which he attributes them to the Romans. We may therefore, perhaps, conclude that these decayed and clumsy-looking monuments were despised for generations, no one realizing their importance or caring to penetrate their secrets. If need were, we have yet other proofs of their extreme antiquity. In excavating an alignment in the district occupied by the Kermario group, a Roman encampment was discovered. The enceinte is represented by a long wall about six feet thick, and propped up against this wall were found a number of flat stones blackened with smoke, on which the legionaries doubtless cooked their food. In some instances these hearths were made on an overturned menhir, and other menhirs, which had belonged to the alignment, were fitted into the walls. A Roman road passes near Avebury, and, contrary to their general custom, the haughty conquerors had turned aside to avoid the tumulus. These are decisive proofs that in France and England at least the megalithic monuments were erected before the advent of the Romans.