The troops under General Ross were landed at Benedict, on the Pawtuxet river, forty-seven miles from Washington. On the 21st they moved towards Nottingham, and on the following day they reached Marlborough. A flotilla of launches and barges, commanded by Admiral Cockburn, ascended the river at the same time, keeping on the right flank of the army. There are two rivers by which Washington may be approached--the Potomac, which discharges itself into the upper extremity of the bay of Chesapeake, and the Pawtuxet. The object which the British military and naval commanders had in view when the Pawtuxet was decided on for the route by which a dash was to be made on the capital city of the American republic, was greater facility of access, and the destruction of Commodore Barney's powerful flotilla of gun-boats, which had taken refuge in its creeks. This flotilla, snugly moored in a situation only twelve miles from Washington, was fallen in with by Admiral Cockburn, on the 23rd. The Americans then seeing that it must be captured set fire to it and fled. Out of sixteen fine gun-boats, fifteen were totally consumed, but one gun-boat missed destruction and it, with thirteen merchant schooners, was made a prize of. The troops now marched rapidly forward. There were about 3,500 men, with 200 sailors to drag the guns, to oppose General Winder, who, with 16,600 men, had, on the faith of a hint received from Ghent, taken measures to protect the capital. When the British approached, however, General Winder had only 6,500 infantry, 300 cavalry, and 600 sailors to work the guns, which were twenty-six in number, while the British had only two. He took up a position at Bladensburg, six miles from Washington, so as to command the only bridge over the little Potomac, by which it could be crossed, and the highway to Washington being directly through his centre. He directed all his artillery upon the bridge. But the men now opposed to the Americans knew well how to carry bridges. General Ross, having formed his troops into two columns, the one under Colonel Thornton, and the other under Colonel Brooke, ordered the bridge to be crossed. Hardly was the order given, when in spite of artillery and musketry, Thornton's column had dashed across, carried a fortified house at the opposite side, and being quickly followed by the other division, had spread out sharpshooters on either flank. The militia of the United States soon got into confusion, and soon after fled. Indeed Commodore Barney and his sailors made the most gallant resistance, but he was soon overpowered, wounded, and with a great part of the seamen under him fell into the hands of the British. Ten guns were taken, the whole army was totally routed; and the enemy were fleeing past Washington, to the heights of Georgetown, horse and foot, as fast as fear could carry them. The day was oppressively hot, and the British army uninfluenced by fear were not able to continue their advance until the cool of the evening.