the protection of infantry, and on the summit there was a fortified citadel, or tower, called the Telegrafo, also surrounded by a strong work, with six guns mounted on carriages. Immediately in front of Cerro Gordo, were several smaller hills occupied by advanced parties of Mexican infantry and lancers. Nearly one half of the enemy were posted within the intrenchments, or in their vicinity, and the main body, under Santa Anna in person, were encamped on the road, about half a mile west of the tower, with a battery of five guns.
General Twiggs arrived at the Plan del Rio, on the 11th of April, with his division of regulars. The advanced guard of dragoons under Colonel Harney, drove a body of Mexican lancers from the ground, and the division encamped for the night. On the following -day, General Twiggs again moved forward, to cover a reconnaissance of the enemy's works, and, if practicable, to make an effective attack. Deeming it unwise to advance further at that time, he returned to his old camp, leaving a strong picket to retain the ground passed over, with the intention of attacking the enemy at daybreak on the 13th. The first and third brigades of General Patterson's volunteer division, commanded by Generals Pillow and Shields, came up on the 12th instant, and the contemplated attack was postponed for one day, in order to allow the volunteers, who were anxious to participate in the engagement, to recover from the fatigue of the march over the long and deep sandy road from Vera Cruz; and on the night of the 13th, all offensive operations were further suspended, by direction of General Patterson, until the arrival of the General-in-chief, who was daily expected.
When General Scott reached the scene of the anticipated conflict, and examined the position occupied by
