The ancient Olympus, how called Santa Croce, rises in the centre of the island, and two principal ranges of mountains runs in the direction of its length, keeping closer to the north than to the south coast. The highest summit of the range of Santa Croce is mount Troödos, with an elevation of 6590 feet above the sea-level. Here, on the south-east slopes, are the summer quarters of the troops and the summer residence of the high commissioner. The most extensive plain, called Messarea, is in the south-east part of the island, and is watcred by the river Pedæus. The south of the island is watered by several streams, the principal of which is the river Kuris, or Lico, which falls into the sea at Episkopi, the ancient _Curium_. But these streams, which were once rivers of some importance, had very much decreased, owing to the almost complete denudation, in the plains and lower slopes of the mountains, of the forests which anciently covered them. Since the British occupation greater attention has been paid to the forests, and the beneficial results are already apparent. The Pedæus is the chief river. This and the other streams generally overflow their banks in the rainy season, and flood the land; as the waters subside, they leave behind a fertilizing mud, in the same manner as the Nile, but during the rest of the year they give but little if any help in the way of irrigation. The rainy season, although generally occurring from October to February, is not, however, to be absolutely depended upon; thus it is recorded that in 1330, during the reign of Hugo of Lusignan, the rainfall was so heavy and the rivers flooded to such an extent as to spread desolation far and near; and under Constantine there was no rain for thirty-six years, so that most of the inhabitants left the island. Again, in modern times, there was a disastrously small rainfall in 1869.