Again, in 1814, a barbette battery of one four-pounder and two eighteen-pounder guns at Stonington, repelled a British fleet of one hundred and thirty-four guns. During the engagement the Americans exhausted their ammunition, and spiked their eighteen-pounders, and only one of them was afterwards used. Two of the enemy's ships, carrying one hundred and twelve guns, were engaged during the whole time of attack, and during much of this time bombarded the town from a position beyond reach of the land-battery. They were entirely too far off for the four-pounder gun to be of any use. Supposing the two eighteen-pounders to have been employed during the whole action, and also all the guns of the fleet, _one_ eighteen-pounder on land must have been more than equivalent to _sixty-seven_ guns afloat, for the ships were so much injured as to render it necessary for them to withdraw. The British loss was twenty killed, and more than fifty wounded. Ours was only two killed and six wounded.[20] [Footnote 20: Perkins says two killed and six wounded. Holmes says six wounded, but makes no mention of any killed.] The fleet sent to the attack of Baltimore, in 1814, consisted of forty sail, the largest of which were ships of the line, carrying an army of over six thousand combatants. The troops were landed at North Point, while sixteen of the bomb-vessels and frigates approached within reach of Fort McHenry, and commenced a bombardment which lasted twenty-five hours. During this attack, the enemy threw "fifteen hundred shells, four hundred of which exploded within the walls of the fort, but without making any impression on either the strength of the work or the garrison," and the British were compelled to retire with much loss. In 1815, a squadron of British ships, stationed off the mouths of the Mississippi, for the purpose of a blockade, ascended the river as high as Fort St. Philip, which is a small work capable of an armament of only twenty guns in all. A heavy fire of shot and shells was continued with but few and short pauses for nine days and nights, but making no impression either on the fort or garrison, they retreated to their former position at the mouth of the river.