At the same time detachments from the Forty-sixth and Forty-seventh Indiana regiments were sent out to feel the Confederate position on the land side. A considerable body of the enemy’s skirmishers were encountered, who were driven across the slough and into the works, when the detachments were withdrawn. In the afternoon the Chillicothe was ordered to engage the fortification. After she had fired seven rounds, a 64-pound shell from the enemy passed through a half-open port striking upon the muzzle of a gun, in which a shell had been placed preparatory to cutting the fuse. Both shells exploded at once, by which three men were killed and eleven wounded. At this time orders were received to withdraw from the engagement. During the ensuing night a force was sent to throw up a battery facing the enemy’s works, west of the slough, and in the edge of the timber. A single 30-pound Parrott gun was mounted, and the work concealed by brush from the view of the enemy. Subsequently another gun was mounted. No attack was made on the 12th, in consequence of the absence of the mortar boats. After some delay, on the 13th, the engagement was commenced about half past ten A. M. by the land batteries. The gunboats Chillicothe and DeKalb soon after approached and opened their fire. It now appeared that the fortification mounted a rifled 64 Parrott, and three 24-Dahlgrens, and a small field battery. These guns were protected by a parapet composed of seven tiers of cotton bales, covered on the outside with eight feet of earth. The contest was bravely maintained for some time, when the fire of the enemy was suspended, but no disposition to surrender was shown. The gunboats and battery kept up the fire, but without any success in reducing the works. The Chillicothe was struck thirty-four times, but not severely injured. The DeKalb suffered more, in consequence of some shot penetrating her casemates, by which one man was killed and five wounded. The impracticable nature of the land approaches rendered any attempt on the part of the military futile, and the expedition was compelled to retire. An expedition under Admiral Porter, consisting of the heavier gunboats of his flotilla was undertaken about this time accompanied by transports, for the purpose of reaching the Yazoo river below Fort Pemberton, and Greenwood, and above Haines’ Bluff. The route of this expedition was up the Yazoo to Cypress bayou, thence into Steele’s bayou, and through Cypress lake to Little Black Fork and Deer creek. These waters were found to be impenetrable to the Federal vessels, and that expedition also proved a failure. PASSING THE VICKSBURG BATTERIES. APRIL 16–22, 1863.