As the forts sustained little damage, Farragut decided to run the batteries. A gunboat stole up by night and cut the boom of hulks chained together, which crossed the river just below the forts. Some of the boats were rubbed over with mud to make them invisible, and chain cables hung over the sides to protect the engines. About half past two in the night of April 23d the fleet moved up the river through the gap in the boom. The enemy, on the alert, launched fire-rafts and lit bonfires to lift the cover of night. Old Jackson and St. Philip poured a hot fire into the fleet as vessel after vessel slowly steamed past, answering with its most spiteful broadsides. But the Union craft had more than the forts against them. Once past the boom they were in the midst of a hostile fleet of fifteen vessels, including a dangerous ironclad ram. A fierce water-fight followed. The Union Varuna was sunk; the flag-ship Hartford set on fire by one of the fire-rafts. The flames, however, were soon put out. Other vessels were disabled. But every one of the Confederate ships was captured or destroyed, and Jackson and St. Philip had to surrender. Farragut then sailed up the river and took possession of New Orleans without resistance. Butler at once occupied the city with his troops, and the Stars and Stripes again waved over the Crescent City. Since that eventful day New Orleans has never been in disunionist hands. After the battle of Pittsburg Landing, Halleck himself came down from St. Louis, and took the reins. Grant was nominally in command under him, but had next to nothing to do. Re-enforced by 25,000 men under Pope, Halleck slowly advanced toward Corinth, entering the place May 30th, Beauregard having evacuated it May 29th. A few Quaker guns--logs mounted on wagon-wheels--were the only trophies. Halleck now had 110,000 effectives, Beauregard less than 60,000. Halleck lay inactive at Corinth for six weeks, when he was summoned to Washington as General-in-Chief. [Illustration: Portrait.] Farragut in the Main-Rigging. From the original by William Page. Grant once more took command of the forces about Corinth, which re-enforcements to Eastern Tennessee soon reduced to 42,000. With these he was expected to guard 200 miles of railroad, from Memphis to Decatur in Northern Alabama. The Confederates under Van Dorn and Price attempted to regain Corinth, but in the battles of Iuka, September 19th, and Corinth, October 3d and 4th, were repulsed with heavy losses. Grant then took the offensive. Vicksburg, about half-way from north to south on Mississippi's western boundary, was the only stronghold left to the Confederates on the great river. Its capture would ideally complete the western campaign. Grant's plan was for Sherman to descend the river from Memphis, while he himself simultaneously attacked Vicksburg by land. [Illustration: Portrait.] General Henry W. Halleck.