On the 1st of July 1863, General Steele arrived at Helena, and reported to General Hurlbut, the commander of the Sixteenth Army corps, in order to receive instructions as to an expedition planned by General Grant, against Little Rock, in that State. All of the troops then in Helena, together with a cavalry division, operating in various parts of the State at that time, and led by Brigadier-General Davidson, were immediately placed under General Steele’s command. But the climate of Helena, which was unfavorable to the troops, had weakened a large number who were either sick or convalescent from sickness. The number mustered at this point for the expedition, was about six thousand. The artillery consisted of three six-gun batteries, one four-gun battery, and six ten-pound Parrot guns. The cavalry numbered less than five hundred men fit for duty, and consisted of the First Indiana and the Fifth Kansas regiments. General Davidson’s cavalry division consisted of six thousand men. On taking command at Helena, General Steele proceeded to organize his forces, and to establish camps for the sick. This done, he commenced an advance movement. General Davidson pushed on to Clarendon, a point on White river, where corduroying two miles of bottom, he threw a bridge over Rock Roe Bayou. Another division advanced toward the same point, under command of General Rice, and still another under command of Colonel W. E. McClean. The entire force was congregated, on the 17th of August, at Clarendon. Beyond the river lay the enemy. General Steele’s design, now, was to establish an Hospital at Duvall’s Bluff, a healthy point on the river, and thence to advance against Little Rock, the capital of the State, and the headquarters of the rebels, situated on the west bank of the Arkansas river. This plan was pursued with equal energy and success. As early as the 23rd July, the Hospital was established; and, on the 25th, General Davidson, still advancing, skirmished with the rebel General Marmaduke’s cavalry, which he finally drove into their intrenchments at Bayou Meton. On the 27th he again attacked the enemy, and drove them from their intrenchments; but the rebels burned their bridges in returning, and thus, for a time, succeeded in checking the Union advance. General Davidson then concentrated his forces at Brownsville, where he remained until the end of the month. On the 30th of August General Steele was reinforced, by True’s brigade, from Memphis, and on the 14th of September he commenced a general advance against the rebels beyond Bayou Meton. At first he resolved to endeavor to turn the left flank of the rebel forces, and for this purpose he sent out General Davidson to reconnoitre. This reconnoissance, made by way of Austin, lasted two days. At the end of that time, however, General Steele was in possession of such information concerning the roads and the disposition of the foe, as determined him to advance on the right.