Mauritius is of volcanic origin, although signs of volcanic activity no longer exist. It is encircled by a coral reef which is submerged at high tide. The central part of the island is a tableland that rises from 500 to 2700 feet above sea-level and occupies more than half of the total surface. In the north and northeastern coast regions there are extensive low plains, but the rest of the coast territory is more or less broken by hills. The registrar-general’s report for 1908 gives the population as 374,450. The climate is agreeable during the cool season, but oppressively hot in summer, which begins in December and ends in March. The temperature falls from April to June and rises again from June to December. In the elevated inland plains of the interior the thermometer ranges from 70 to 80 degrees Fahrenheit in summer, and in Port Louis and the coast region it runs from 90 to 96 degrees during that season. The average temperature at Port Louis is 78.6 degrees Fahrenheit throughout the year. The rainfall varies greatly in different parts, but an average of ten years (1893-1902) gave 79 inches for the entire island. Cyclones are frequent and generally occur between December and April. The soil consists chiefly of a very light clay formation, easily penetrated by water. In some localities the clay is deep and evenly deposited, while in others many large pieces of lava are found in it, so that ploughing is impossible. Mauritius was discovered by the Portuguese in 1505. From 1598 to 1710 it was in the hands of the Dutch, and in 1715 it was taken by France, from whom it was wrested by the British in 1810. The Dutch brought sugar cane from Java to Mauritius in 1650, but their efforts at cultivation were not successful. When in 1741 de la Bourdonnais was appointed administrator of Mauritius, or, as it was then called, l’Ile de France, it was a crown colony under the control of the French East India company. The island was without agriculture or commerce and the inhabitants were sunk in indolence. The genius of the new executive brought order out of chaos, and his example and assistance aroused the people from their lethargy. Sugar cane was again imported in 1747 and in 1750 a sugar estate was established at Pamplemousses in the northern part of the island by de la Villebague, the governor’s brother. The industry expanded and was carried on with profit.