The only instances where it has ever been pretended by writers of any note, that ships have gained advantage, are those of the attack on Copenhagen in 1801; the passage of the Dardanelles, in 1807; the attack on Algiers, in 1816; the attack on San Juan d'Ulloa, in 1838; and the attack on St. Jean d'Acre, in 1840. Let us examine these examples a little in detail:-- _Copenhagen_.--The British fleet sent to attack Copenhagen, in 1801, consisted of fifty-two sail, eighteen of them being line-of-battle ships, four frigates, &c. They sailed from Yarmouth roads on the 12th of March, passed the Sound on the 30th, and attacked and defeated the Danish line on the 2d of April. The Sound between Cronenberg and the Swedish coast is about two and a half miles wide, (vide Fig. 34.) The batteries of Cronenberg and Elsinore were lined with one hundred pieces of cannon and mortars; but the Swedish battery had been much neglected, and then mounted only six guns. Nevertheless, the British admiral, to avoid the damage his squadron would have to sustain in the passage of this wide channel, defended by a force scarcely superior to a single one of his ships, preferred to attempt the difficult passage of the Belt; but after a few of his light vessels, acting as scouts, had run on rocks, he returned to the Sound. He then tried to negotiate a peaceful passage, threatening, however, a declaration of war if his vessels should be fired upon. It must be remembered that at this time England was at peace with both Denmark and Sweden, and that no just cause of war existed. Hence, the admiral inferred that the commanders of these batteries would be loath to involve their countries in a war with so formidable a power as England, by commencing hostilities, when only a free passage was asked. The Danish commander replied, that he should not permit a fleet to pass his post, whose object and destination were unknown to him. He fired upon them, as he was bound to do by long-existing commercial regulations, and not as an act of hostility against the English. The Swedes, on the contrary, remained neutral, and allowed the British vessels to lie near by for several days without firing upon them. Seeing this friendly disposition of the Swedes, the fleet neared their coast, and passed out of the reach of the Danish batteries, which opened a fire of balls and shells; but all of them fell more than two hundred yards short of the fleet, which escaped without the loss of a single man.