l,--I have the honour to report that on the 9th inst., in compliance with instructions from the Commanding General, Army of Northern Virginia, I proceeded on an expedition into Pennsylvania with a cavalry force of 1800 men and four pieces of horse-artillery, under command of Brig.-Gen. Hampton and Cols. W. H. F. Lee and Jones.
This force rendezvoused at Darkesville at 12 o'clock, and marched thence to the vicinity of Hedgesville, where it camped for the night.
At daylight next morning (October 10th) I crossed the Potomac at McCoy's (between Williamsport and Hancock) with some little opposition, capturing two or three horses of the enemy's pickets.
We were told here by the citizens that a large force had camped the night before at Clear Spring, and were supposed to be en route for Cumberland.
We proceeded northward until we reached the turnpike leading from Hagerstown to Hancock (known as the National Road). Here a signal station on the mountain and most of the party, with their fl