During the hottest part of the day the air over the land frequently reaches a temperature of 100° Fahr., and even more, while that over the sea rarely rises above 80°. During the night the land radiates its heat with such rapidity that, towards morning, its atmosphere may be from 10° to 15° colder than that of the sea. Soon after sunrise, the land being warmer than the sea, a sea breeze sets in, which increases in force until about three o’clock, when the difference of temperature is greatest. It then gradually diminishes until about sunset, when, the temperature of the land and sea having become equal, the atmosphere is at rest, the calm continuing for an hour or more. Soon the land becomes cooler than the sea, and a gentle breeze from the former sets in. It increases in force as the night advances, becoming strongest a little before morning, when the temperature of the land is lowest; after which it rapidly dies away, and is succeeded by a calm, to be soon replaced by the sea breeze. One other species of variable wind is to be noticed: the hot, dry, dust-laden blast from desert regions. Such occur more or less periodically, and are known by different names in different localities. Tom Moore has told us that “love’s witchery” on the heart is “Like the wind of the south o’er the summer lute blowing, That hushed all its music, and withered its frame.” The reference is to the simoom of Syria and Arabia. One who has not experienced this wind can have little idea of its oppressiveness. Apt to come at any hour during the hottest months of the year, with a temperature so great that a piece of silver exposed to it becomes hot enough to blister the flesh, and laden with the impalpable dust of the desert, vegetation is scorched and withered by it, and animals flee from it as from the pestilence. It may last but a short time: it may endure several days.