On the disappearance of the sun beneath the Mediterranean at Malta, as soon as the opal fires have burned out of the sky, light clouds usually fringe the horizon, emitting rapid flashes of lightning which continue for hours, recalling the Aurora Borealis as seen at Bodöe and Tromsöe, in Norway. There is no lasting twilight in this latitude. Night follows close upon the footsteps of the departing day. The brightness of the stars supervenes so quickly after the curtain falls upon the scene, and the mellow evening atmosphere is so clear, that the twilight is hardly missed by the watchful observer, as the Spirit of the night, upon dewy sandals, begins her course of the circling hours. CHAPTER IV. The Soil of Malta.--Imports and Exports.--Absence of Trees.--Equable Climate.--Three Crops Annually.--Use of Fertilizers.--Ignorant and Pious Peasantry.--Food of the People.--Maltese Women.--Oriental Customs.--Roman Catholic Influence.--Improvisation.--Early Marriages.--A Resort for the Pope.--Low Wages.--Beggars.--Wind Storms.--Blood Oranges. --The Carob-Tree.--Maltese Lace.--Sailing along the Shore. It has already been mentioned that a large portion of the island of Malta is covered with a thin, rich soil, some of which, it is said, was brought from Sicily at infinite cost and labor. If this is so, of which we have reasonable doubts, it was done only to a very limited extent. Vessels sailing hence with merchandise for the mainland or Sicily, having no return cargo, may have occasionally brought back as ballast quantities of earth, but that there was ever any systematic importation of soil is not probable. Much of the surface of the island is still only bare, calcareous stone, exposed to the fierce winds, rains, and scorching sunshine. A process of disintegration is constantly going on which gradually reduces this surface rock to friable matter, and as soon as a space becomes favorable in its conditions by such means it is promptly improved by the natives for agricultural purposes. The extraordinary success which crowns the husbandman's efforts is the triumph of industry over natural obstacles. All soil is but broken and decomposed rock, pulverized by various agencies acting during long periods of time, counting centuries as days. The molten lava poured from the fiery mouth of Vesuvius has, in the course of ages, become the soil of thriving vineyards at Resina and Castellamare. The Bahama Islands, composed originally of coral and limestone, have, during the lapse of centuries, become such fertile soil at the surface as to nourish the royal palm, the orange, and the banana, together with the stout-limbed ceiba and the most delicate fruits of the tropics. It should be remembered, also, that vegetation does not depend alone upon the soil for its life and fruitfulness. Like human beings, it borrows vitality from the rain and atmospheric air.