While these operations were in progress, a daring enterprise was undertaken by Colonel Charles E. Ellet, commander of the ram steamer Queen of the West, by which he hoped to destroy a formidable rebel steamer called the City of Vicksburg, then lying under the guns of the fortifications at that place. The Queen of the West had been previously provided with all the arrangements deemed necessary to insure the complete success of the dangerous undertaking. Three hundred bales of cotton had been procured further up the river and placed on board, particularly about the machinery, in order to save her from any serious injury by shot and shell from the rebel batteries. Rear-Admiral Porter had given orders that she should proceed down to Vicksburg, destroy the rebel steamboat City of Vicksburg, lying opposite the city, and then run past the lower rebel batteries. The Colonel was directed to keep close to the right bank going down, to have all his lights on board extinguished—as it was intended that she should run the gauntlet in the darkness—and having safely passed the batteries, to anchor below the mouth of the canal and there wait for further orders. The Colonel started with the ram from above the bend at half past four o’clock in the morning. It was about six o’clock, just as the sun was rising, when the ram rounded the point of land lying opposite Vicksburg. She had only men enough on board to work her, it having been arranged that the remainder of the crew would cross the point of land and get on board of her below after she had passed the batteries. When rounding the point she was distinctly seen by the rebels. They immediately opened a heavy fire from several of their batteries, which crowned the crests of the bluffs about the city. The Queen slowly and steadily proceeded down the river under a heavy fire from those batteries, until she reached a point opposite the spot where the steamboat City of Vicksburg was lying. Colonel Ellet saw that the steamboat was lying in almost the same position as was the rebel ram Arkansas when he ran into her with the Queen of the West. If the rebel steamboat should be struck as the ram was running down the river, the prow, instead of penetrating her, would be inclined to glance, and the full force of the blow would thus be lost. Wishing to make the shock as effective as possible, when the ram had reached the proper position the Colonel turned her partly around, so as to face the city, and then made across the river straight for the fated steamboat. The rebels, who had crowded on the banks, scampered off in the most affrighted manner from the shore, and sought safety in the city. The ram still went steadily on to the execution of her destructive errand. She struck the rebel steamboat forward of the wheel-house; but at the moment of collision the current caught the stern of the ram and swung her round so rapidly that nearly all the momentum of the blow was lost.