"Fort Jackson was a larger fortification, bastioned, built of brick, with casemates and glacis, rising twenty-five feet above the water. Some French and British officers, calling upon Farragut before the attack, having come from among the Confederates, while visiting whom they had seen and examined these forts with their defences, warned him that to attack them would only result in sure defeat; but the brave old hero replied that he had been sent there to try it on and would do so; or words to that effect. "The forts had one hundred and fifteen guns of various kinds and sizes, mostly smooth-bore thirty-two pounders. Above them lay the Confederate fleet of fifteen vessels, one of them an iron-clad ram, another a large, unfinished floating battery covered with railroad iron. Two hundred Confederate sharp-shooters kept constant watch along the river banks, and several fire-rafts were ready to be sent down among the Federal vessels. Both these and the sharp-shooters were below the forts. Also there were two iron chains stretched across the river, supported upon eight hulks which were anchored abreast. "Farragut's naval expedition was the largest that had ever sailed under the United States flag, consisting of six sloops of war, twenty-one mortar schooners, sixteen gun-boats, and other vessels, carrying in all two hundred guns. "But the vessels were built for the sea and were now to work in a much narrower space--a river with a shifting channel and obstructed by shoals. "To get the larger vessels over the bar at the southwest pass was a work of time and great labor. They had to be made as light as possible and then dragged through a foot of mud. Two weeks of such labor was required to get the _Pensacola_ over, and the _Colorado_ could not be taken over at all. "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.