Guns that fired on Sumter.Below are some of the Confederate guns in the battery near Fort Moultrie that bore upon the Fort pictured above. It was the hot shot from Fort Moultrie itself that set fire to the barracks in Fort Sumter about eight o'clock on the morning of April 13th. When the Confederate commanders saw the black smoke rise from the fort, they doubled the fire of the batteries to keep the flames from being extinguished. Sumter did not cease replying, although the intervals between shots became longer as the garrison dashed from spot to spot checking the flames. The South Carolinians showed their admiration for their dauntless antagonists by cheering at every shot that replied to them. About half-past 12 of that day the flagstaff on Sumter was shot away. General Beauregard, who was in charge of the operations of Charleston, at once sent three of his aides to inquire if Major Anderson would accept assistance in subduing the flames and to offer terms of surrender. The terms, which allowed the gallant garrison to march out with the honors of war, were at length accepted. The first step in the war had been irrevocably taken.