chariot-wheels here; and till a few years ago a long line of stones, a little farther to the south, marked the line of the ancient road. At the northern end of this defile between the marsh and the mountain stands the modern village of Kato-Souli. About a quarter of a mile to the south of it, close to the road and to the foot of the mountain, are the deepest pools of the swamp; they are easily distinguished by the luxuriant vegetation that surrounds them, the tall reeds being particularly noticeable. These pools, beside which cattle find green pasture in summer when the plains are scorched and brown with heat, are fed by powerful subterranean sources, the Macaria of the ancients, about which Pausanias tells us the legend of Macaria, daughter of Hercules, who gave her name to the spring. Strabo says that the head of Eurystheus was cut off and buried by Iolaus beside the spring Macaria, under the highroad, and that hence the place was called ‘the head of Eurystheus.’ At Kato-Souli, about half-way up the slope of the hill which rises above the village, there are some shallow niche-like excavations in the rock, not unlike mangers. It may have been these niches to which popular fancy gave the name of ‘the mangers of the horses of Artaphernes.’ On its opposite or eastern side the great swamp ends in a small salt-water lake, now called Drakonera, that is ‘the dragon-water’ or ‘the enchanted water.’ This lake discharges itself into the sea by a stream which flows exactly at the point where the sandy beach of the bay ends and the rocks of Cape Cynosura begin. Sea fish are caught in the lake, and eels in the fresh-water pools of the marsh. The salt lake has perhaps been formed since the time of Pausanias, for he describes only the marsh and a stream flowing from it into the sea. At the southern end of the plain of Marathon there is another, but much smaller, swamp called Vrexisa between the sea and the foot of Mount Agrieliki. Its greatest breadth is about half a mile. It is covered with reedy grass and shrubs, and is separated from the sea by a strip of sand. The highroad to Athens runs betwixt this marsh and the foot of the mountains.