"Where was Porter just then, sir?" asked Walter.
"He and his mortar fleet were still below the forts," replied the captain, "and just as Butler had ordered his vessel away from that dangerous spot, the rebel monitor Manassas came moving down into the midst of his fleet. She had just been terribly pounded by the Mississippi and was a helpless wreck, but that was not perceived at first, and some of the mortars opened fire upon her, but stopped when they saw what was her condition: her hull battered and pierced, her pipes twisted and riddled by shot, smoke pouring from every opening. In a few minutes her only gun went off, flames burst out from stern, trap-door, and bow port, and she went hissing to the bottom of the river.
"Butler now hurried to his transports and took them to Sable Island, twelve miles in the rear of Fort St. Philip. From there they went in small boats, through the narrow and shallow bayous, piloted by Lieutenant Weitzel. It was a most fatiguing journey, the men sometimes having to drag their boats through cold, muddy water waist deep. But the brave, patriotic fellows worked on with a will, and by the night of the 27th they were at the Quarantine, ready to begin the assault on Fort St. Philip the next day, when they were landed under cover of the guns of the Mississippi and the Kineo. Butler sent a small force to the other side of the river above Fort Jackson, which Porter had been pounding terribly with the shells from his mortars. On the 26th, Porter sent a flag of truce with a demand for the surrender of the fort, saying that Farragut had reached New Orleans and taken possession.
"Colonel Higginson, the commander of the fort, replied that he had no official report of that surrender, and that until he should receive such he would not surrender the fort; he could not entertain such a proposition for a moment.
"On the same day, General Duncan, commander of the coast defences, but at that time in Fort Jackson, sent out an address to the soldiers, saying, 'The safety of New Orleans and the cause of the Southern Confederacy, our homes, families, and everything dear to man yet depend upon our exertions. We are just as capable of repelling the enemy to-day as we were before the bombardment.'
"Thus he urged them to fight on. But they did not all agree with the views he expressed. They could see the blackened fragments of vessels and other property strewing the waters of the river as it flowed swiftly by, and the sight convinced them of the truth of the report which had reached them of the fall of New Orleans. They had heard, too, of the arrival of Butler's troops in the rear of Fort St. Philip.
"Doubtless they talked it all over among themselves that night, as a large number of them mutinied, spiked the guns bearing up the river, and the next day went out and surrendered themselves to Butler's pickets on that side of the river, saying they had been impressed, and would not fight the government any longer. Their loss made the surrender of the fort a necessity, and Colonel Higginson accepted the generous terms offered him by Porter. He and Duncan went on board the Harriet Lane and the terms of surrender were reduced to writing.
"While that was going on in her cabin, a dastardly deed was done by the Confederate officer Mitchell, who, as I have said, commanded the battery called the Louisiana. It lay above the forts. He had it towed out into the strong current, set on fire and abandoned, leaving the guns all shotted, expecting she would float down and explode among Porter's mortar fleet; but a good Providence caused the explosion to come before she reached the fleet. It took place when she was abreast of Fort St. Philip, and a soldier, one of its garrison, was killed by a flying fragment. Then she went to the bottom, and the rest of the Confederate steamers surrendered.
"Porter and his mortar fleet were still below the forts, but Farragut had now thirteen of his vessels safely above them and was ready to move upon New Orleans.
"Half an hour after he reached the Quarantine, he sent Captain Boggs to Butler with despatches. Boggs went in a small boat through shallow bayous in the rear of Fort St. Philip, and, as I have already said, the next day Butler and his troops arrived at the Quarantine in readiness to assault the forts.