"Waterport Street is the chief thoroughfare, and is nearest to the water. There are only two other streets of any consequence, and all of those in the place are narrow and crooked. It is a walled town, and the regulations are very strict, and are carefully enforced. No foreigner can reside here unless the consul of his country, or a householder in the city, becomes his surety. A police-magistrate can issue a permit for ten, fifteen, or twenty days' residence in the city; and a military man can introduce a friend for thirty days. The gates are opened at sunrise in the morning, and closed at sunset in the evening; and there is no getting in or out after they are closed for the night. Two guns are fired, the first of warning, so that it is not necessary to get caught on the wrong side if one is reasonably careful. "The ancients believed the Rock was the end of the world, as they did in regard to a number of other places. The Pillars of Hercules marked this western extremity of creation--the Rock was one of them and Apes Hill, on the opposite side of the strait, was the other. "The Rock appears in history at a very early date. The navigators from Phœnicia called it Aluba, which the Greeks twisted into Calpa, which the professor will tell you is the classic name for it. Hannibal and other Carthaginian generals must have known about the Rock, for they made expeditions into Spain. It does not appear that it was ever used as a fortress until the year of our Lord 711, which is longer ago than any of us can remember, when Tarik Ibn-zeyad (don't forget the name) fortified it. He was a Saracenic general on his way to conquer some of the nations of Europe, and this seemed to be a convenient place for a base of operations, as it was easy of access from Africa. "After this chief the Rock was named Gebel-Tarik, or the hill of Tarik, and this compound word was corrupted into Gibraltar. They say that one of the towers of the castle he built can still be seen; but I never saw it, and I will not say anything more about it. For six hundred years it remained in possession of the Moors, who had obtained a stronghold in Spain; but it was captured in 1309 by Don Antonio de Guzman. "Additional works and a dockyard were then constructed, and the Old Mole, which may still be seen at the north end of the city, was built at the same time. The Spaniards and Moors continued to hold and lose it for the next hundred and fifty years. In 1462 the Spaniards captured it through the treachery of a renegade Moor. Even in the seventeenth century the holders of the fortress had so strengthened it that it was regarded as impregnable.