and Colonel Trousdale and some of his officers were badly wounded. Leaving Major Hunter with the 11th infantry, Lieutenant Colonel Hébert hastened forward to take command of his regiment. A demonstration made by a body of the enemy on this flank, was checked by Major Hunter; but their forces, in large numbers, were discovered rallying upon the branch causeway and aqueduct leading to the San Cosmé road, and threatening the section of the battery commanded by Lieutenant Jackson. Captain Magruder pushed on to his assistance with the other section; and, at the same time, General Worth turned the mill and advanced upon the road, with Colonel Garland's brigade, — consisting of the 2nd and 3rd artillery, under Captain Brooks and Lieutenant Colonel Belton, and the 4th infantry. Major Lee, — the light battalion of Lieutenant Colonel C. F. Smith, Duncan's battery, and three squadrons of dragoons, under Major Sumner.
A flank movement of a portion of Colonel Garland's brigade completed the capture of the breastwork, under the fire of Lieutenant Jackson's guns, and General Worth continued his advance, attacking the right of the enemy's line resting on the branch causeway, and driving them before him, at the moment of the general retreat consequent upon the capture of the castle. He then rapidly pursued the routed enemy, in the direction of the San Cosmé road.
As soon as his command could be formed and supplied with ammunition. General Quitman also advanced on the Chapultepec causeway, the more direct route to the city. Meanwhile Captain Drum had brought up a four-pounder captured gun, and was moving along the causeway, pouring a constant fire upon the flying Mexicans. The rifle regiment commanded by Major Lor-
