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.
His plan was quickly and intelligently formed. Charleston lies upon a tongue of land between the Ashley and Cooper rivers which, uniting at the battery, form the bay exactly as the union of the North and East rivers does at New York. Indeed, a map of Charleston in outline differs from a map of New York only in one important particular, that the widening of the peninsula in its middle part occurs on one side in Charleston and on the opposite side in New York. South of the Ashley river the coast line sweeps in a semicircle trending northwards and bounded by James Island. That island is separated from the mainland by Wapoo Cut, which connects the mouth of the Ashley river with Stono Inlet. Stono Inlet separates James Island from John's Island and the mainland on the south, and its entrance is from the sea. On the eastern side of James Island there is an inlet known as Folly river which has many ramifications, and which in its general course cuts off from James Island a marsh known as Folly Island. This marsh lies along the ocean front very much as Sandy Hook does at the mouth of New York harbor. A narrow and shallow creek cuts Folly Island in two towards its northern end, and the space north of that creek is known as Morris Island. The northern end of Morris Island abuts upon the entrance to the harbor and commands it on the one side while Fort Moultrie on Sullivan's Island commands it on the other. Fort Sumter, built upon an artificial island in the middle of the harbor, forms the third point in the triangle in which the Federal fleet had encountered such difficulty, and suffered such defeat.
General Gillmore's plan was to capture Morris Island, and gain possession of its northern extremity, known as Cummings's Point, where stood Battery Gregg, on guard against entrance to the harbor.
By an error in judgment the Confederates gave him his opportunity. They withdrew from the marsh known as Folly Island, where they might have defended themselves almost to the end of time. Gillmore was quick to see their mistake, and to take advantage of it. He instantly seized upon the southern end of Folly Island, and set to work to convert his troops into amphibians. In boats, on rafts and by wading through indescribable mud he pushed them northward to Morris Island.
In anticipation of this movement on his part, the Confederates had strengthened a battery on that island, and named it Fort Wagner. They had armed it with the best they had in the way of heavy guns, light guns and infantry forces of grandly desperate courage and determination. Here was to be fought out the question of the possession of Morris Island and the control of Charleston harbor.
The fighting in front of that work was, from the first, desperate in the extreme. In order to approach it at all the Federal troops were forced to wade waist deep in water, carrying their rifles above their heads. The first assault was made on the eleventh of July, 1863, and was aided by a terrific fire from the fleet. It was led by the first regiment of negroes that had thus far actively participated in fighting in the war, and the conduct of those troops was worthy of the best traditions of battling. The assault was met in such fashion as to destroy the greater number of the assailants and hurl back the fragmentary remains of the column in confusion. So desperate was this endeavor and with such determination was the assault made that the Federals lost more than 1,500 men while inflicting a loss of less than one hundred upon their adversaries.
Having failed in direct assault General Gillmore determined to take Fort Wagner and the works north of it by regular siege approaches. General Gillmore was an engineer of the highest capacity and a soldier of the utmost courage, energy and determination. He drew his first parallel and mounted great siege guns upon it almost immediately. Then working under such cover as he could provide he established a second parallel, and opened fire from it on the twenty-third of July. He was advancing in this slow and perilous way over a narrow strip of land—a mere marsh scarcely at all elevated above the level of the surrounding waters. His sick list was from the first enormous, and day by day it grew as one man after another succumbed to the poisonous miasms of those pestilential swamps in which, until the time of the war no white man had ever dared spend a night between the first of June and the end of November. "Country fever"—believed by many physicians to be nothing less than yellow fever in its native and endemic form—slew far more of his troops than the shot and the shell and the bullets of his adversary did. Nevertheless, like the soldier that he was, Gillmore pressed on, working his way inch by inch toward the hostile embankments.