But, though worsted in this attack upon Fort Mifflin, the British did not wholly abandon their designs upon it. Immediately upon their repulse, they began their preparations for a second attack. This time they did not propose to rely upon men-of-war alone. Batteries were built upon every point of land within range of Fort Mifflin. Floating batteries were built, and towed into position. By the 10th of November all was ready, and upon that day a tremendous cannonade was opened upon the American works. After two days of ceaseless bombardment, the garrison of the fort was forced to surrender. Since the fall of Fort Mifflin gave the control of the Delaware to the British, the Americans immediately put the torch to the "Andrea Doria" fourteen, the "Wasp" eight, and the "Hornet" ten; while the galleys skulked away along the Jersey coast, in search of places of retreat. While the Yankee tars on river and harbor duty were thus getting their share of fighting, there was plenty of daring work being done on the high seas. One of the most important cruises of the year was that of the "Raleigh" and the "Alfred." The "Raleigh" was one of the twelve-pounder frigates built under the naval Act of 1775. With her consort the "Alfred," she left the American coast in the summer of 1777, bound for France, in search of naval stores that were there awaiting transportation to the United States. Both vessels were short-handed. On the 2d of September the two vessels overhauled and captured the snow "Nancy," from England, bound for the West Indies. Her captain reported that he had sailed from the West Indies with a fleet of sixty merchantmen, under the convoy of four small men-of-war, the "Camel," the "Druid," the "Weasel," and the "Grasshopper." The poor sailing qualities of the "Nancy" had forced her to drop behind, and the fleet was then about a day in advance of her. Crowding on all canvas, the two American ships set out in hot pursuit. From the captain of the "Nancy" Capt. Thompson of the "Raleigh" had obtained all the signals in use in the fleet of Indiamen. The next morning the fleet was made out; and the "Raleigh" and the "Alfred" exchanged signals, as though they were part of the convoy. They hung about the outskirts of the fleet until dark, planning, when the night should fall, to make a dash into the enemy's midst, and cut out the chief armed vessel. But at nightfall the wind changed, so that the plan of the Americans was defeated. At daylight, however, the wind veered round and freshened, so that the "Raleigh," crowding on more sail, was soon in the very centre of the enemy's fleet. The "Alfred," unfortunately, being unable to carry so great a spread of canvas, was left behind; and the "Raleigh" remained to carry out alone her daring adventure.