The next morning the sun broke out gloriously, warming and drying our chilled, wet forms. Nearly all that day we maintained a line of battle confronting the pursuing enemy. One brigade would take a defensive position, while the other would march about five miles to a commanding point, where it in turn would form a line. The first brigade would then give way, pass through the second, and take position well to the rear. Thus, although retreating, we were always ready to fight. At one point the enemy pressed us closely, and I saw a magnificent cavalry charge down a gentle descent in the road. Every sabre seemed tipped with fire in the brilliant sunshine. In the afternoon it became evident that there was a body of troops before us. Who or what they were was at first unknown, and for a time the impression prevailed that we should have to cut our way through by a headlong charge. We soon learned, however, that the force was a brigade of colored infantry, sent up to cover our retreat. It was the first time we had seen negro troops, but as the long line of glistening bayonets and light-blue uniforms came into view, prejudices, if any there were, vanished at once, and a cheer from the begrimed troopers rang down our line, waking the echoes. It was a pleasant thing to march past that array of faces, friendly though black, and know we were safe. They represented the F.F.V.'s of Old Virginia, we then wished to see. On the last day of the march my horse gave out, compelling me to walk and lead him. On the day after our arrival at Yorktown, Kilpatrick gave me despatches for the authorities at Washington. President Lincoln, learning that I had just returned from the raid, sent for me, and I had a memorable interview with him alone in his private room. He expressed profound solicitude for Colonel Dahlgren and his party. They had been detached from the main force, and I could give no information concerning them. We eventually learned of the death of that heroic young officer, Colonel Dahlgren. Although partially helpless from the loss of a leg, he led a daring expedition at the cost of his life. I expressed regret to the President that the object of the raid had not been accomplished. "Pick the flint, and try it again," said Mr. Lincoln, heartily. I went out from his presence awed by the courage and sublime simplicity of the man. While he gave the impression that he was bearing the nation on his heart, one was made to feel that it was also large enough for sympathy with all striving with him in the humblest way.