This delay, no doubt, induced the Chinese to make a supreme effort to avert the overthrow of Yeho, who had proved so useful an ally, and accordingly the governor of Leaoutung advanced with 100,000 men into Manchuria. He sacrificed the advantage of superior numbers by dividing his army into four divisions, with very inadequate means of inter- communication. Noorhachu could only bring 60,000 men into the field; but, apart from their high training, they represented a compact body subject to the direction of Noorhachu alone. The Manchu leader at once perceived the faulty disposition of the Chinese army, and he resolved to attack and overwhelm each corps in detail before it could receive aid from the others. The strongest Chinese corps was that operating most to the west, and marching from Fooshun on Hingking; and Noorhachu perceived that if he could overthrow it the flank of the rest of the Chinese army would be exposed, and its line of retreat imperiled. The Chinese general in command of this corps was impetuous and anxious to distinguish himself. His courage might on another occasion have helped his country, but under the circumstances his very ardor served the purpose of Noorhachu. Tousong, such was his name, marched more rapidly than any of his comrades, and reached the Hwunho--the Tiber of the Manchus--behind which Noorhachu had, at a little distance, drawn up his army. Without pausing to reconnoiter, or to discover with what force he had to deal, Tousong threw himself across the river, and intrenched himself on Sarhoo Hill. His overconfidence was so extreme and fatuous that he weakened his army by sending a detachment to lay siege to the town of Jiefan. The Manchus had, however, well provided for the defense of that place, and while the Chinese detachment sent against it was being destroyed, Noorhachu attacked Tousong in his position on Sarhoo Hill with the whole of his army. The Chinese were overwhelmed, Tousong was slain, and the majority of those who escaped the fray perished in the waters of the Hwunho, beneath the arrows and javelins of the pursuing Manchus.