Outside these the cold of winter is aggravated by cloud and mist.

The barometer records from 20 inches to 21 inches at the sea-level.

Storms are slight, brief, and infrequent; the tides are insignificant; and sea-voyages were safe and easy even before Martial ingenuity devised vessels which are almost independent of weather.

During the greater part of the year a clear sky from the morning to the evening zyda may be reckoned upon with almost absolute confidence.

A heavy dew, thoroughly watering the whole surface, rendering the rarity of rain no inconvenience to agriculture, falls during the earlier hours of the night, which nevertheless remains cloudy; while the periods of sunset and sunrise are, as I have already said, marked almost invariably by dense mist, extending from one to four thousand feet above the sea-level, according to latitude and season.