...ost deadly attack was made on the Confederate works, after meridian, by a floating battery of ten guns, formed of the gun-boats Cincinnati, Benton, and St. Louis, lashed side by side, followed by the Carondelet , Pittsburg, and Mound City. They went nearer to the works, and pounded them severely. Heavy blows were given in return, and the second day of. the siege was as barren of decisive results as the fir...