On the 3d of September, the Indians made a furious assault on Fort Harrison. They kept up a brisk fire the whole night, and one time had actually succeeded in making a breach in the defences of the place. The roofs of the buildings were several times on fire; one of the blockhouses was burnt. Captain Taylor, however, succeeded in defending the post and finally beat them off. The scene was enough to try the soul of a hero. There were but eighteen effective men in the fort, and two of them, in a moment of despair, leapt the pickets to escape. The night was dark--the yelling of several hundred savages, and the cries of the women, were sufficient to excite terror in the stoutest heart. On the 4th of September, Gen. Harrison arrived at Urbana and assumed the command of the north-western army. The rapids of the Miami of the Lakes were fixed upon as the point of concentration, the several corps of which were to move in the following directions:--two thousand Pennsylvania volunteers under General Crooks, were to move from Pittsburgh along the shores of lake Erie: Gen. Tupper's brigade of Ohio volunteers were to take Hull's route from Urbana to the Rapids: fifteen hundred Virginians, under Brigadier Gen. Leftwich, were to take the same route, whenever they should arrive. Gen. Payne's brigade of Kentucky volunteers, with the 17th U. States' regiment, Col. Wells, were to advance to Fort Wayne, and descend the Miami; such was the disposition of the forces which were to constitute the _new_ army. A considerable Indian force appeared before Fort Wayne on the 5th. They invested the place closely for several days; they burnt the U. States' factory and many other valuable houses. A brother of Gov. Meigs, and two soldiers were killed near the fort. Gen. Harrison marched with the brigade of Gen. Payne and the regulars to relieve fort Wayne--the enemy fled at his approach. There was now a favorable moment for making the Indians feel the effects of the war. An expedition was accordingly projected against several towns within two days march of that place. The whole force was divided and placed under the command of Gen. Payne and Colonel Wells. The former was directed to destroy the Miami towns at the forks of the Wabash; and the latter to go against the Potawatamie villages at Elk Hart. The commander in chief accompanied Gen. Payne on the expedition: four of the Miami villages were burnt, three of which were remarkably flourishing. All their corn was cut up and piled, in order that it might rot before the enemy could return to prevent it. Colonel Wells was equally successful; he destroyed several villages and returned to camp without loss.