The Achelous, which the ancients likened to a savage bull, owing to its rapid current and great volume, is by far the most important river of Greece. One of the great feats ascribed to Hercules consisted in breaking off one of the horns of this bull; that is to say, he embanked the river, and thus protected the lands which it used to inundate. The neighbours of the Achelous, the rapid Fidari (Evenus, on the banks of which Hercules killed the centaur Nessus, for offering violence to Dejanira) and the Mornos, which rises in the snows of the Œta, cannot compare with it. Still less is it equalled by the Oropus, the Cephissus, and the Ilissus, “wet only when it rains,” which flow eastward into the Ægean Sea. The principal river of Eastern Greece, the Sperchius, is inferior to the Achelous, but, like it, has extensively changed the aspect of the plain near its mouth. When Leonidas and his three hundred heroes guarded the defiles of Thermopylæ against the Persians, the Gulf of Lamia extended much farther into the land than it does now. But the alluvial deposits of the river have extended its delta, and several rivulets which formerly flowed {51} directly into the sea have now to be numbered amongst its tributaries; the sea has retired from the foot of the Callidromus for a distance of several miles; and the narrow pass of Thermopylæ has been converted into a plain sufficiently wide to enable an entire army to manœuvre upon it. The hot springs which gush from the rocks, by forming deposits of calcareous tufa, may likewise have contributed towards this change of coast-line; nor are more violent convulsions of nature precluded in a volcanic region like this, subject to frequent earthquakes. Sailors still point out a small island in this neighbourhood, formed of scoriæ, from which the incensed Hercules hurled his companion, Lichas, into the ocean. Hot springs abound on the opposite coast of Eubœa, and the incrustations formed by them are so considerable as to assume the appearance of glaciers when seen from a distance. A bathing establishment exists now near the hot sulphur springs of Thermopylæ, and strangers are thus enabled to explore this region, so rich in memories of a great past. The pedestal, however, upon which reposed the figure of a marble lion, placed there in honour of Leonidas, has been destroyed by ruthless hands, and utilised in the construction of a mill !