On the 21st of October, a detachment of Hessians, amounting to twelve hundred men, commanded by Colonel Count Donop, crossed the Delaware at Philadelphia, with orders to storm the fort at Red Bank. The fortifications consisted of extensive outer works, within which was an intrenchment eight or nine feet high, boarded and fraized. Late in the evening of the twenty-second. Count Donop appeared before the fort, and attacked it with great intrepidity. It was defended with equal resolution. The outer works being too extensive to be manned by the troops in the fort, were used only to gall the assailants while advancing. On their near approach, the garrison retired within the inner intrenchment, whence they poured upon the Hessians a heavy and destructive fire. Colonel Donop received a mortal wound; and Lieutenant Colonel Mengerode, the second in command, fell about the same time. Lieutenant Colonel Minsing, the oldest remaining officer, drew off his troops, and returned next day to Philadelphia. The loss of the assailants was estimated by the Americans at four hundred men. The garrison was reinforced from fort Mifflin, and aided by the galleys which flanked the Hessians in their advance and retreat. The American loss, in killed and wounded, amounted to only thirty-two men. [Sidenote: The Augusta frigate blows up.] The ships having been ordered to co-operate with Count Donop, the Augusta, with four smaller vessels, passed the lower line of chevaux-de-frise, opposite to Billingsport, and lay above it, waiting until the assault should be made on the fort. The flood tide setting in about the time the attack commenced, they moved with it up the river. The obstructions sunk in the Delaware had in some degree changed its channel, in consequence of which the Augusta and the Merlin grounded, a considerable distance below the second line of chevaux-de-frise and a strong wind from the north so checked the rising of the tide, that these vessels could not be floated by the flood. Their situation, however, was not discerned that evening, as the frigates which were able to approach the fort, and the batteries from the Pennsylvania shore, kept up an incessant fire on the garrison, till night put an end to the cannonade. Early next morning it was recommenced, in the hope that, under its cover, the Augusta and the Merlin might be got off. The Americans, on discovering their situation, sent four fire ships against them, but without effect. Meanwhile, a warm cannonade took place on both sides, in the course of which the Augusta took fire, and it was found impracticable to extinguish the flames. Most of the men were taken out, the frigates withdrawn, and the Merlin set on fire; after which the Augusta blew up, and a few of the crew were lost in her.