the following day they abandoned their camp, threw the greater part of their baggage and provisions into the rapids, and after destroying the bridge over the Chippewa, continued their retreat in great disorder to Fort Erie. Out of a force of 5,000 men, they had lost in killed, wounded, and prisoners at least 1,500. This defeat, and the timely arrival of veteran troops from Europe, appear to have decided the British commanders to change the defensive warfare they had hitherto adopted, and the small operations they had conducted on the coast of the southern States, for offensive movements of greater vigour. A large naval force was despatched under the command of Vice-Admiral Cockrane, having on board a powerful land force commanded by General Ross. The latter landed on the 20th of August at Benedict; marched to Nottingham on the 21st, and to Upper Marlborough on the 22nd, Admiral Cockrane in the meanwhile, with the barges, armed launches, and other boats of the fleet, having the marines on board, proceeding up the Patuxent on the flank of the army. The American Commodore blew up his vessels, seventeen in number, with the exception of one which fell into the hands of the British. The troops reached Bladensburg (about five miles from Washington) on the 24th. BURNING OF WASHINGTON. About 9,400 Americans (400 of whom were cavalry) drawn up to oppose them, were speedily routed, with the loss of ten pieces of artillery and the capture of their commanding officer, General Barney. It appears to have been General Ross's first intention to return to his ships after laying the capital under contribution; but the Americans having fired upon the bearer of the flag of truce who was sent forward with the conditions, all thoughts of an arrangement were dissipated. The soldiers pressed into the city, and after burning a frigate and sloop of war, the President's residence, the capitol--including the Senate House and House of Representatives, dockyard, arsenal, war office, treasury, and the great bridge over the Potomac, re-embarked on the 30th of August.