On the other hand, Lee's army had been as actively engaged in ditching and throwing up redoubts, and Richmond was surrounded by a cordon of most powerful works. Stonewall Jackson had been recalled from the Shenandoah Valley; and now, with an army of thirty thousand men, a very large proportion of them being men of his original army, he hung upon our right and rear, ready to come down upon our communications and flank like an avalanche.

Scarcely had General McClellan finished his dispatch to the Secretary of War, in which he announced the glad tidings that he had got his pickets in the right place, preparatory to a general advance, before he was aroused from his illusion by the intelligence that the pickets on the right were being driven in. He had already, during the day, learned something of Jackson's position, and it was now easy to divine the intention of that energetic chief.

During the night, Hill and Longstreet crossed the upper Chickahominy; and, by rapid marches, confronted the pickets of McCall's division at Mechanicsville before daylight on the morning of the 26th. Jackson, delayed by our skirmishers, was still behind. Without waiting for Jackson, Hill ordered an attack by daylight. Our pickets were forced back upon the main line, and the battle of Mechanicsville commenced. McCall's division, consisting of Reynolds', Meade's and Seymour's brigades, was strongly posted behind Beaver Dam creek; a stream about twelve feet wide, wooded on either side, with water waist deep, and a steep bank on the side held by the Union forces. Along this bank, timber had been felled, rifle pits dug, and other careful preparations made for meeting an attack. The only accessible places for artillery were the two roads which crossed the stream, one at Ellison's Mills, and the other a mile above. Against these two points the rebels directed their principal efforts. Hill's division made the first assault. Clearing their rifle pits, his men rushed forward with a yell, gaining the creek, within a hundred yards of our line. Here the creek and the almost impenetrable abattis checked their progress, and a murderous fire of shot, shells, cannister and musketry was opened upon them, which threw them into confusion, and repulsed them with fearful loss. Again and again the charge was renewed; each time with equal want of success. More and more grand and terrible the battle became, as the combatants struggled with each other at close range. Thus far there had been no such terrific artillery firing during the war. The uproar was incessant, and sublime beyond description. Finding the position too strong to be carried by direct assault, the confederates fell back to their rifle pits; leaving their many dead and wounded on the ground. The men of McCall's division, securely posted behind their breastworks, had suffered comparatively little; our loss not exceeding three hundred in killed and wounded, out of the six thousand belonging to the brigades engaged.

On the other hand, the rebels had lost heavily. From their own official reports, it is known that of the twelve thousand engaged, the loss in killed and wounded was fifteen hundred; Ripley's single brigade losing five hundred and seventy-four men.

Both Davis and Lee were present on the field, directing in person the movements, and exposed to the fire where the battle was fiercest. General McClellan was at the head-quarters of General Porter, where he remained until the close of the battle, when he rode over the field.

From the camp of the Sixth corps, the battle-field was not more than four or five miles distant in a direct line, though by way of the bridge it was much farther.

We could watch the columns of smoke as they rolled up from the scene of carnage, and see the flashes of bursting shells, like sheets of lightning in dark thunder-clouds, and hear the tremendous roar of arms. In the afternoon, as the rebels charged upon a certain part of our lines, we could watch the movements of both armies. Our only part in the engagement was to stand to arms, ready to rush to the assistance of those on the other side of the river, at a moment's notice. In the evening, the news of our success spread through the army, creating the wildest joy. Men who had, by constant hardships, and by continually looking on death, almost forgotten the feelings of joy, now broke out in loud shouts of gladness; and for the first time in many weeks the bands played those heart-stirring national airs, which in times past had been wont to fill the hearts of the soldiers with enthusiasm.

The night passed in constant watchfulness, the men resting upon their arms; for a renewal of the attack might be expected at any moment. Still, the men of the whole of the left wing of the army were exulting in the glad hope that in the morning we were to march into Richmond, almost without opposition; and that their high hopes of success were to be speedily realized. The prize which they had so often been promised, seemed almost within their grasp. Men shook hands with each other, sung patriotic songs, and shouted in greatest glee.

Bands continued to ring out their notes of gladness until long after nightfall; general officers rode about announcing a grand victory; all was the most intense excitement; and the men lay down upon their arms to dream of reveling in the streets of Richmond before another night. For weeks, even the drum calls and the bugle notes had not been heard in our camps. Now, as if suddenly waked from a long slumber, the strains of the bugle and the roll of the drum were added to the general rejoicing.

It was known that the rebel troops engaged were not those of Jackson. He then must be working around to our rear. He was known to have a very large force; not less than thirty thousand. It was evident that our communications were in great danger, and that unless the main force of our army, now on the right bank of the Chickahominy, were hastily concentrated on the left bank, we could not expect to hold the line to the Pamunkey another day. If this were done, the rebels could easily prevent our retreat to the James river, and leave us on the banks of the Pamunkey. Accordingly, General McClellan gave up all hope of being able to maintain the position of that portion of the army on the north side of the Chickahominy, and at once issued orders with a view of preparing for a change of base. The quartermaster at White House was directed to "send cars to the last moment, and load them with provisions and ammunition." "Load every wagon you have," said the dispatch, "with subsistence, and send them to Savage's Station. If you are obliged to abandon White House, burn everything you cannot get off."