Not far from King and Queen Court House we captured and burned a dépôt of ordnance and several wagons. We have been much annoyed by bushwhackers on the way to-day. Their plan is to hide in the thick bushes, and fire upon the rear of our column as we pass, in places where it is not possible to pursue them without much loss of time, which is too precious to be wasted thus. Several men and horses have been wounded by these skulkers during the day. As night was settling down upon us, we discovered a body of cavalry in our front, and quickly made preparations to meet them. Kilpatrick deployed skirmishers and advanced in column of squadrons. Our supposed enemies were also prepared for fight, and a spirited conflict was anticipated. Several shots were exchanged, when the contending parties discovered their mutual mistake. Our opponents proved to be the Twelfth Illinois, which, after leaving the main column at Thompson's Cross Roads, had swept down through the enemy's communications about Ashland Station, destroyed several important bridges and some stores, and was now, like ourselves, endeavoring to reach Gloucester Point.

This rencounter was very pleasing. Our column was greatly increased and encouraged. We needed this stimulus exceedingly, for we had been marching all day through a cold drizzling rain, which had dampened our ardor somewhat, and chilled our blood. Many of our horses had given out by the way, and were killed to prevent their falling into the enemy's hands. A few days of rest and care will so recruit such horses that they become again serviceable. Their places were filled by those horses and mules which were brought to us by the contrabands, which all along our journey flocked to our standards, and by such other animals as were captured by our flankers and advance guards. Exhausted as most of us were, no bivouac fires were kindled until we reached our lines of pickets from Gloucester Point, where we were received by our Union comrades in the midst of demonstrations of admiration and joy. Here we had a splendid rest.

May 7.—This morning, after a more sumptuous breakfast than we had had for many days, we crossed the York River to Yorktown, where we encamped. We are now, as it may well be supposed, the "lions of the day." Nothing is too good for us. We have the freedom of the town, and the subject of our raid is the theme of private and public speculation.

In our travels we have captured and paroled over three hundred prisoners, burned five or six railroad bridges, destroyed all the ferries on our route, captured and demolished two wagon-trains, burned five or six dépôts of stores, destroyed one railroad train, besides stations and telegraph offices, and have torn several miles of track. We have taken over one hundred and fifty horses, some of them the finest in the country.

The following extract from the Yorktown Gazette will more fully explain the importance of our expedition:

"We have heard startling accounts of the prodigies of valor performed by Stuart's Cavalry in Virginia, and the bands of Morgan in the West. That they showed true valor, nice discretion, and great powers of endurance, we will not for a moment question. But the exploits of our cavalry, in the late expedition in the rear of Lee's army, surpasses any thing ever achieved on this continent. Especially are the adventures of the Second New York (Harris Light Cavalry) and the Twelfth Illinois almost incredible. But they bear with them trophies that fully confirm the record of their daring.

"They penetrated within the outer lines of fortification at Richmond, to within less than two miles of the city, and captured prisoners and trophies there. They cut all the communications between that city and Lee's army, travelled two hundred miles, and lost only thirty men. Many of them have changed horses a number of times on the route. Whenever theirs got tired, they laid hold of any thing that came in their way that suited them better. The contrabands flocked to them from every quarter. They would take their masters' teams from the plough and their best horses from the stables. Some of them were almost frantic with delight on the appearance of the Yankees. Over three hundred found their way to this place. Their services are all needed at this present time."

The following report of Brigadier-General King will be read with interest:

Yorktown, Virginia, May 7, 1863.

To Major-General Halleck: