One of the Federal ironclads, the _Keokuk_, ventured too near Fort Beauregard, manned by Confederate volunteers who had practised with their cannon as they might have done with close range rifles until they could plant a shell wheresoever they desired. The commandant of the fort did not open fire upon the vessel until it had securely anchored itself, bow and stern, in a position from which its officers expected to make themselves quickly masters of the work. When they were thus securely fastened in position the commander of the fort gave the order to fire. Within the next minute or two the _Keokuk_ was struck and penetrated by not less than 100 shells, ninety of which had passed through her sides below the water line and burst within her engine rooms. She went down as a cracked teapot might have done. Another ironclad, the _Weehawken_, had been sent to lead the way, pushing a raft before her in order to explode all contact torpedoes before reaching them. As soon as she became involved in the chain and other defenses of the harbor a terrific fire was opened upon her and for half an hour she was threatened with the fate of the _Keokuk_. At the end of that time she retired, baffled and beaten, and DuPont, seeing how completely his effort had failed, abandoned the purpose of taking Charleston or reducing its defenses by any sea attack. Nearly all of his vessels had been so far damaged as to be unfit for further use until repairs in them could be made. Most of the monitors had been completely disabled for effective action by the smashing of titanic shells against their turrets, which were bent and twisted in such fashion that they could no longer be revolved. Many of the ships of less formidable character had been altogether withheld from action in view of the terrific effectiveness of the Confederate fire. Finding that even his most powerful floating fighting machines were unable to resist the fire of the forts Du Pont wisely reserved his weaker vessels and kept them out of a contest in which they were so manifestly unfit to engage. Thus came to an end the best planned and most capably conducted effort that was at any time made to conquer Charleston by sea. It was obvious from that time forth that if Charleston was to be taken at all it must be captured by other means than those of a flotilla attempting to force its way into the splendidly defended harbor. With that patience and persistence which are dominant characteristics of the American mind the authorities at Washington set themselves at once at work to devise and use those other and slower, but more hopeful means of conquest. General Quincy A. Gillmore was assigned to this work. A large force was placed under his command and whatever guns he needed were subject to his requisition. The monitors and other naval vessels were ordered to coöperate with him and act under his direction.