The tribes of the interior of the island lived in a state of greater barbarism than those of the maritime districts. Clothed in the skins of animals, they fed upon milk and flesh.[329] Strabo even represents them as cannibals; and assures us that the custom existed among them of eating the bodies of their dead relatives.[330] The men wore their hair very long, and a moustache; they rubbed their skin with woad, which gave them a blue colour, and rendered their aspect as combatants singularly hideous.[331] The women also coloured themselves in the same manner for certain religious ceremonies, in which they appeared naked.[332] Such was the barbarism of the Britons of the interior, that the women were sometimes common to ten or twelve men, a promiscuousness which was especially customary amongst the nearest relatives. As to the children who were born of these incestuous unions, they were considered to belong to the first who had received into his house the mother while still a girl.[333] The Britons of the Cape Belerium (_Cornwall_) were very hospitable, and the trade they carried on with foreign merchants had softened their manners.[334] The abundance of metals in Britain, especially of tin, or _plumbum album_, which the Phœnicians went to seek there from a very remote antiquity,[335] furnished the inhabitants with numerous means of exchange. At all events, they were not acquainted with money, and only made use of pieces of copper, gold, or iron, the value of which was determined by weighing. They did not know how to make bronze, but received it from abroad.[336] The religion of the Britons, on which Cæsar gives us no information, must have differed little from that of the Gauls, since Druidism passed for having been imported from Britain into Gaul.[337] Tacitus, in fact, tells us that the same worship and the same superstitions were found in Britain as among the Gauls.[338] Strabo speaks, on the authority of Artemidorus, of an island neighbouring to Britain, where they celebrated, in honour of two divinities, assimilated by the latter to Ceres and Proserpine, rites which resembled those of the mysteries of Samothrace.[339] Under the influence of certain superstitious ideas, the Britons abstained from the flesh of several animals, such as the hare, the hen, and the goose, which, nevertheless, they domesticated as ornamental objects.[340]