"The mortar vessels were towed up stream and began to take their places. Porter disguised them with mud and the branches of trees, so that they could not be readily distinguished from the river banks, being moored under cover of the woods on the bank just below Fort Jackson. The stratagem was successful; his vessels were moored where he wished to have them, the nearest being two thousand eight hundred and fifty yards from Fort Jackson, and three thousand six hundred and eighty from Fort St. Philip.
"On the opposite side of the river, and a little farther from the forts, Porter had his six remaining vessels stationed, screening them also with willows and reeds, and mooring them under cover of the woods to conceal their true character.
"On the 18th of April, before nine o'clock in the morning, the attack was begun by a shot from Fort Jackson, then, as soon as Porter was ready, the Owasco opened fire, and the fourteen mortar boats concealed by the woods, also the six in full sight of the forts, began their bombardment.
"The gun-boats took part in the conflict by running up and firing heavy shells when the mortars needed relief. Porter was on the Harriet Lane, in a position to see what was the effect of the shells, and direct their aim accordingly.
"The fight went on for several days, then Farragut, deeming there was small prospect of reducing the forts, prepared to carry out another part of his instructions by running past them. He called a council of the captains in the cabin of the Hartford, and it was then and there decided that the attempt should be made.
"It was an intensely dark night, the wind blowing fiercely from the north, but Commander Bell with the Winona, the Itasca, Kennebec, Iroquois, and the Pinola ran up to the boom. The Pinola ran to the hulk under the guns of Fort Jackson, and an effort was made to destroy it with a petard, but failed. The Itasca was lashed to the next hulk, but a rocket sent up from the fort showed her to the foe, who immediately opened a heavy fire upon her. But half an hour of active work with chisels, saws, and sledges parted the boom of chains and logs, and the hulk to which she was attached swung round and grounded her in the mud in shallow water. But the Pinola rescued her.
"Two hours later an immense fire-raft came roaring down the stream, but, like those sent before, it was caught by our men and rendered harmless. They would catch such things with grappling-irons, tow them to the shore, and leave them there to burn out harmlessly.
"Day after day the bombardment went on, fire-rafts coming down the river every night, but Fort Jackson still held out, though its citadel had been set on fire by the shells from the mortar boats, and all the commissary stores and the clothing of the men destroyed; also the levee had been broken in scores of places by the exploding shells, so that the waters of the river flooded the parade ground and casemates.
"By sunset on the 23d, Farragut was ready for his forward movement, but Porter, with his mortar boats, was to stay and cover the advance with his fire. Farragut, on board his flag-ship, the Hartford, was to lead the way with it, the Brooklyn, and the Richmond.
"These vessels formed the first division, and were to keep near the right bank of the river, fighting Fort Jackson, while Captain Theodorus Bailey was to keep close to the western bank with his (the second) division, to fight Fort St. Philip. His vessels were the Mississippi, Pensacola, Varuna, Oneida, Katahdin, Kineo, Wissahickon, Portsmouth.