As the victorious British force swept along past the city, Sir Colin Campbell detached a force under General Mansfield to attack and occupy the position of the Subadar's Tank--which was captured after some hard fighting. Thus the British were in a position in rear of the enemy's left. The mutineers, seeing that their right was utterly defeated, and the retreat of their left threatened, lost all heart, and as soon as darkness came on, fled, a disorganized rabble, from the city they had entered as conquerors only six days before. The cavalry started next day in pursuit, cut up large numbers, and captured the greater part of their guns. The threatening army of Gwalior thus beaten and scattered, and Cawnpore in our hands, Sir Colin Campbell was able to devote his whole attention to clearing the country in his rear, and in preparing for the great final campaign against Lucknow, which, now that Delhi had fallen, was the headquarters of the mutiny. The next two months were passed in a series of expeditions by flying columns. In some of these the Warreners took part, and both shared in the defeats of the Sepoys and the capture of Futtyghur and Furruckabad--places at which horrible massacres of the whites had taken place in the early days of the mutiny. During these two months large reinforcements had arrived; and Jung Bahadoor, Prince of Nepaul, had come down with an army of ten thousand Ghoorkas to our aid. On the 15th of February the tremendous train of artillery, ammunition and stores, collected for the attack upon the city, began to cross the river; and upon the 26th of the month the order was given for the army to move upon the following day.