Two months later, or in the early part of May, two United States vessels, the "Hancock" thirty-two, Capt. Manly, and the "Boston" twenty-four, Capt. Hector McNeil, sailed in company from Boston. When a few days out, a strange sail was sighted, and proved to be a British frigate. The "Hancock" soon came near enough to her to exchange broadsides, as the two vessels were going on opposite tacks. The enemy, however, seemed anxious to avoid a conflict, and exerted every effort to escape. Manly, having great confidence in the speed of his ship, gave chase. Calling the people from the guns, he bade them make a leisurely breakfast, and get ready for the work before them. The "Hancock" soon overhauled the chase, which began firing her guns as fast as they would bear. The Americans, however, made no response until fairly alongside, when they let fly a broadside with ringing cheers. The action lasted for an hour and a half before the enemy struck. She proved to be the "Fox," twenty-eight. She was badly cut up by the American fire, and had thirty-two dead and wounded men on board. The loss on the "Hancock" amounted to only eight men. In this running fight the "Boston" was hopelessly distanced, coming up just in time to fire a gun as the British ensign came fluttering from the peak.
Putting a prize crew on the "Fox," the three vessels continued their cruise. A week passed, and no sail was seen. Somewhat rashly Capt. Manly turned his ship's prow toward Halifax, then, as now, the chief British naval station on the American coast. When the three ships appeared off the entrance to the harbor of Halifax, the British men-of-war inside quickly spied them, raised anchor, and came crowding out in hot pursuit. There was the "Rainbow" forty-four, the "Flora" thirty-two, and the "Victor" eighteen, besides two others whose names could not be ascertained. The Americans saw that they had stirred up a nest of hornets, and sought safety in flight. The three British vessels whose names are given gave chase. The "Boston," by her swift sailing, easily kept out of the reach of the enemy. The "Fox," however, was quickly overhauled by the "Flora," and struck her flag after exchanging a few broadsides. The "Hancock" for a time seemed likely to escape, but at last the "Rainbow" began gradually to overhaul her. Capt. Manly, finding escape impossible, began manœuvring with the intention of boarding his powerful adversary; but the light winds made this impossible, and he suddenly found himself under the guns of the "Rainbow," with the "Victor" astern, in a raking position. Seeing no hope for success in so unequal a conflict, Manly struck his flag. In the mean time the "Boston" had calmly proceeded upon her way, leaving her consorts to their fate. For having thus abandoned his superior officer, Capt. McNeil was dismissed the service upon his return to Boston.
These losses were to some degree offset by the good fortune of the "Trumbull," twenty-eight, in command of Capt. Saltonstall. She left New York in April of this year, and had been on the water but a few days when she fell in with two British armed vessels of no inconsiderable force. The Englishmen, confident of their ability to beat off the cruiser, made no effort to avoid a conflict. Capt. Saltonstall, by good seamanship, managed to put his vessel between the two hostile ships, and then worked both batteries with such vigor, that, after half-an-hour's fighting, the enemy was glad to strike. In this action the Americans lost seven men killed, and eight wounded. The loss of the enemy was not reported. This capture was of the greatest importance to the American cause, for the two prizes were loaded with military and naval stores.
During the year 1777, the occupation of Philadelphia by the British army, under Gen. Howe, led to some activity on the part of the American navy. While Philadelphia had been in the possession of the Continentals, it had been a favorite naval rendezvous. Into the broad channel of the Delaware the American cruisers had been accustomed to retreat when the British naval force along the coast became threateningly active. At the broad wharves of Philadelphia, the men-of-war laid up to have necessary repairs made. In the rope-walks of the town, the cordage for the gallant Yankee ships was spun. In the busy shipyards along the Delaware, many of the frigates, provided for by the Act of 1775, were built.
In the summer of 1777 all this was changed. Sir William Howe, at the head of an irresistible army, marched upon Philadelphia; and, defeating the American army at Brandywine, entered the city in triumph. The privateers and men-of-war scattered hastily, to avoid capture. Most of them fled down the Delaware; but a few, chiefly vessels still uncompleted, ascended the river.
To cut off these vessels, the British immediately commenced the erection of batteries to command the channel of the river, and prevent any communication between the American vessels above and below Philadelphia. To check the erection of these batteries, the American vessels "Delaware" twenty-four, and "Andrea Doria" fourteen, together with one or two vessels flying the Pennsylvania flag, took up a position before the incomplete earthworks, and opened a heavy fire upon the soldiers employed in the trenches. So accurate was the aim of the American gunners, that work on the batteries was stopped. But, unluckily, the commander of the "Delaware," Capt. Alexander, had failed to reckon on the swift outflowing of the tide; and just as the sailors on that ship were becoming jubilant over the prospect of a victory, a mighty quiver throughout the ship told that she had been left on a shoal by the ebb tide. The enemy was not long in discovering the helpless condition of the "Delaware;" and field-pieces and siege-guns were brought down to the river-bank, until the luckless Americans saw themselves commanded by a heavy battery. In this unhappy predicament there was no course remaining but to strike their flag.
Though the British had possession of Philadelphia, and virtually controlled the navigation of the river at that point, the Americans still held powerful positions at Red Bank and at Fort Mifflin, lower down the river. Against the former post the British sent an unsuccessful land expedition of Hessians, but against Fort Mifflin a naval expedition was despatched.
Fort Mifflin was built on a low marshy island near the mouth of the Schuylkill. Its very situation, surrounded as it was by mud and water, made it impregnable to any land attack. While the fort itself was a fairly strong earthwork, laid out upon approved principles of engineering, its outer works of defence added greatly to its strength. In the main channels of the river were sunk heavy, sharp-pointed chevaux de frise, or submarine palisades, with sharp points extending just above the surface of the water. In addition to this obstacle, the enemy advancing by water upon the fort would have to meet the American flotilla, which, though composed of small craft only, was large enough to prove very annoying to an enemy. In this flotilla were thirteen galleys, one carrying a thirty-two pounder, and the rest with varying weight of ordnance; twenty-six half-galleys, each carrying a four-pounder; two xebecs, each with two twenty-four-pounders in the bow, two eighteen-pounders in the stern, and four nine-pounders in the waist; two floating batteries, fourteen fire-ships, one schooner-galley, one brig-galley, one provincial ship, and the brig "Andrea Doria." It was no small naval force that the British had to overcome before attacking the mud ramparts and bastions of Fort Mifflin.
Against this armament the British brought a number of vessels, with the "Augusta," sixty-four, in the lead. The battle was begun late in the afternoon of the 22d of October, 1777. The attack of the Hessians upon the American fortifications at Red Bank, and the opening of the action between the British and American fleets, were simultaneous. The Hessians were beaten back with heavy loss, some of the American vessels opening fire upon them from the river. The naval battle lasted but a short time that night, owing to the darkness. When the battle ended for the night, the "Augusta," and the "Merlin," sloop-of-war, were left hard and fast aground.
The next morning the British advanced again to the attack. The skirmish of the night before had shown them that the Yankee flotilla was no mean adversary; and they now brought up re-inforcements, in the shape of the "Roebuck" forty-four, "Isis" thirty-two, "Pearl" thirty-two, and "Liverpool" twenty-eight. No sooner had the British squadron come within range than a heavy fire was opened upon the fort. The American flotilla was prompt to answer the challenge, and soon the action became general. Time and time again the Americans sent huge fire-ships, their well-tarred spars and rigging blazing fiercely, down among the enemy. But the skill and activity of the British sailors warded off this danger. Thereupon the Americans, seeing that they could not rely upon their fire-ships, changed their plan of action. Any one of the British vessels was more than a match for the largest American craft, so the Yankees saw they must rely upon force of numbers. Accordingly their larger vessels were each assigned to attack one of the enemy; while the swift-sailing galleys plied to and fro in the battle, lending aid where needed, and striking a blow wherever the opportunity offered itself. This course of action soon began to tell upon the British. All of their vessels began to show the effects of the American fire. The "Augusta" was in flames, owing to some pressed hay that had been packed upon her quarter having been set on fire. Despite the efforts of her crew, the flames spread rapidly. Seeing no chance to save the vessel, the crew abandoned her, and sought to gain the protection of other vessels of the British fleet. But the other ships, seeing the flames on the "Augusta" drawing closer and closer to the magazine, and knowing that her explosion in that narrow and crowded channel would work dreadful damage among them, determined to abandon the attack upon Fort Mifflin, and withdrew. The "Merlin," which was hard and fast aground, was fired, and the British fled. As they turned their ships' prows down the Delaware, the dull sullen roar of an explosion told that the "Augusta" had met her end. Soon after the "Merlin" blew up, and the defeat of the British was complete.