His work was first revealed to the enemy in a dramatic and poetic way. When the time came for the Christmas salute in which the foes, as it were, lifted their caps to each other, the saluting was begun by the ships of the Federal fleet. One after another, as they lay in line, they fired the conventional number of guns. Then the Confederate batteries took up the courteous work, each firing its quota. When the last one on the left of Sumter had fired it was supposed that the saluting would be continued by the next battery on the right of that ruined work. It was not dreamed on either side that Sumter had a single gun in position. But Elliott's work of reconstruction had been done. His guns were ready again for the fray. And in his turn he fired the Christmas salute, to the astonishment and admiration of all. Then came one of the graceful courtesies of war. Under signal orders from the commandant of the Federal fleet every ship in the squadron dipped its flag in deference to Fort Sumter. Here were brave men saluting brave men, and rejoicing in their courage and their enterprise although these were antagonistically employed. Perhaps no incident in all the war better illustrates than this one does the sympathy that brave men feel for brave men, irrespective of the lines of conflict drawn between them. As he approached Fort Wagner General Gillmore was forced to work upon ground so low that the spring tides freely washed over it, and drenched his working details to their waists. Nevertheless, he pushed them forward, determined that the work he had undertaken should be fully done. As his parallels drew nearer and nearer to the work they were intending to reduce they came at last upon ground which had been mined, and planted with destructive torpedoes. Nevertheless, Gillmore pushed forward his working parties and multiplied the fire of his mortars which dropped shells incessantly into the fort, letting them fall vertically so that no earthwork might afford protection against their destructiveness. Under the glare of powerful calcium lights the work went on by night as well as by day. During every minute of every hour in the twenty-four the contest was continued ceaselessly. The destructive fire upon the Confederate fort was added to by bringing a great ironclad warship the _New Ironsides_ close in shore, and setting her guns at work. After two days of this fearful conflict Gillmore was ready with his infantry columns to make that final rush upon the works by which he hoped to conquer them. But suddenly, in anticipation of a charge which they were too weakened to resist with any hope of success, the Confederates abandoned Fort Wagner, and withdrew also from Battery Gregg to the north of it.