As soon as Mahone fell the Federals, in three lines, moved on fort Gregg, with cheers. In the immediate vicinity all else was silent. How confidently, and in what beautiful lines they advance! As they near the fort their line curves into a circle. They are within fifty yards, and not the flash of a single rifle yet defies them. My God! have the boys surrendered without a struggle? We look to see if the sign of a white flag can be seen. At this instant it seems to gleam in the sun-light, and sends a pang to our hearts. But no; it is the white smoke of their guns, while cannoneers and infantry simultaneously fire on the confident assaulters, who stagger, reel under their death-dealing volley, and in a moment the Federal lines are broken and they retreat in masses under cover. A loud and wild cheer succeeds the breathless stillness that prevailed amongst us, and is answered exultingly by the heroic little garrison in fort Gregg. But reinforcements have come to the help of the assaulters. I can see their long serpentine lines as they wind their way through the cleared fields in the distance, and over the captured works. I turned and looked to our rear, but no reinforcements were seen coming to the succor of the garrison. Every man is needed at his post, and no reserves are at hand. The repulsed assailants, animated by the sight of reinforcements, reform, and, as their comrades come up in battle array, march forth again in unbroken ranks. As they gain the hill-top, two hundred yards from the fort, the artillery within the fort belches forth from the embrasures, and the effect of its canister can be plainly seen in the heaps of dead and dying that strew the ground. But the check is only momentary. As the next line advances they move forward in serried ranks, and soon the fort is canopied in smoke. We can see the artillery as it fires in rapid succession, and the small arms pop and crack in a ceaseless rattle. The conflict elsewhere ceases, and both sides are silent and anxious witnesses of the struggle at the fort. Thus the fight continues for half hour. The Federals have reached the ditch. They climb up the sides of the works, and, as the foremost reach the top, we can see them reel and fall headlong on their comrades below. Once, twice and thrice have they reached the top, only to be repulsed, and yet they persevere, and the artillery in the embrasures continue to fire in rapid succession. But, at last, all is hushed! The artillery once more, and for the last time, fire a parting shot, and we can see the Federals as with impunity they mount the works and begin a rapid fire on the defenders within. Their ammunition is exhausted, and, unwilling to surrender, they are using their bayonets and clubbing their guns in an unequal struggle. At last one loud huzza proclaims the fort lost, and with it the Confederate army cut into two parts. Generals Heth and Wilcox were in the fort, cheered the men to