Islands and islets are scattered in seeming disorder over the Ægean Sea, the name of which may probably mean “sea of goats,” because these islands appeared at a distance like goats. By a singular misapplication the modern term {70} Archipelago, instead of sea, is now used to designate these groups of islands. The Sporades, in the north, form a long range of islands stretching in the direction of Mount Athos. The island of Scyros, farther south, the birthplace of Achilles and place of exile of King Theseus, occupies an isolated position; the large island of Eubœa extends along the coast of the continent; and in the distance rise the white mountains of the Cyclades, likened by the ancient Greeks to a circle of Oceanides dancing around a deity. [Illustration: Fig. 23.—EURIPUS AND CHALCIS. Scale 1 : 220,000.] All these islands are so many fragments of the mainland. This is proved by their geological structure, or by shoals which attach them to the nearest coast. The Northern Sporades are a branch of Mount Pelion. Eubœa is traversed by limestone mountains of considerable height, running parallel to the chains of Attica, Argolis, Mount Olympus, and Mount Athos. Scyros is a rocky mountain mass, whose axis runs in the same direction as that of the central chain of Eubœa. The summits of the Cyclades continue the ranges of Eubœa and Attica towards the south-east, and the same micaceous and argillaceous schists, limestones, and crystalline marbles are found in them. They are, indeed, “mountains of Greece {71} scattered over the sea.” If Athens may boast of the quarries of Mount Pentelicus, the Cyclades produce the glittering marbles of Naxos, and the still more beautiful ones of Paros, from which were chiselled the statues of heroes and of gods. Curious caverns are met with in the limestone of the islands, especially that of Antiparos, the existence of which was not known to the ancients, and the Cave of Sillaka, on the island of Cythnos, or Thermia, celebrated for its hot springs. Granite is found on some of the islands, and particularly in the small island of Delos, dedicated to the worship of Apollo and Diana. In the south, finally, the Cyclades are traversed by a chain of volcanic islands, extending from the peninsula of Methana, in Argolis, to Cos and the shores of Asia Minor.