8. Next to Geræstus is Eretria, which, after Chalcis, is the largest city in Eubœa. Next follows Chalcis, the capital as it were of the island, situated immediately on the Euripus. Both these cities are said to have been founded by Athenians before the Trojan war; [but it is also said that] after the Trojan war, Æclus and Cothus took their departure from Athens; the former to found Eretria, and Cothus, Chalcis. A body of Æolians who belonged to the expedition of Penthilus remained in the island. Anciently, even Arabians[567] settled there, who came over with Cadmus. These cities, Eretria and Chalcis, when their population was greatly augmented, sent out considerable colonies to Macedonia, for Eretria founded cities about Pallene and Mount Athos; Chalcis founded some near Olynthus, which Philip destroyed. There are also many settlements in Italy and Sicily, founded by Chalcidians. These colonies were sent out, according to Aristotle,[568] when the government of the Hippobatæ, (or Knights,) as it is called, was established; it was an aristocratical government, the heads of which held their office by virtue of the amount of their property. At the time that Alexander passed over into Asia, they enlarged the compass of the walls of their city, including within them Canethus,[569] and the Euripus, and erected towers upon the bridge, a wall, and gates. 9. Above the city of the Chalcidians is the plain called Lelantum, in which are hot springs, adapted to the cure of diseases, and which were used by Cornelius Sylla, the Roman general. There was also an extraordinary mine which produced both copper and iron; such, writers say, is not to be found elsewhere. At present, however, both are exhausted. The whole of Eubœa is subject to earthquakes, especially the part near the strait. It is also exposed to violent subterraneous blasts, like Bœotia, and other places of which I have before spoken at length.[570] The city of the same name as the island is said to have been swallowed up by an earthquake.[571] It is mentioned by Æschylus in his tragedy of Glaucus Pontius; “Euboïs near the bending shore of Jupiter Cenæus, close to the tomb of the wretched Lichas.” There is also in Ætolia a town of the name of Chalcis, “Chalcis on the sea-coast, and the rocky Calydon,”[572] and another in the present Eleian territory; “they passed along Cruni, and the rocky Chalcis,”[573] speaking of Telemachus and his companions, when they left Nestor to return to their own country. 10. Some say, that the Eretrians were a colony from Macistus in Triphylia, under the conduct of Eretrieus; others, that they came from Eretria, in Attica, where now a market is held. There is an Eretria also near Pharsalus. In the Eretrian district there was a city, Tamynæ, sacred to Apollo. The temple (which was near the strait) is said to have been built by Admetus, whom the god, according to report, served a year[574] for hire.