I have just received intelligence from Lord Rawdon, that De Kalbe [Kalb] has certainly joined Caswall [Caswell] (b.) at Coxes' plantation on Deep river; his lordship in consequence has withdrawn Major M'Arthur's [McArthur] detachment over the Black creek, when he means to join him with two battalions, and post Lieutenant-colonel Webster on Hanging-rock creek. This will make his situation pretty compact; but I fear the enemy will make incursions into the country. I propose going down in a few days. Although you will easily imagine, that arrangements here are much wanted, and that I can be but ill spared, the other business is, however, the most pressing.

Lord Rawdon likewise inclosed to me a letter from Lieutenant-colonel Turnbull, (a.) at Rocky mount, on the west bank of the Wateree, thirty miles from Camden, who reports, that having heard that some of the violent rebels, about thirty miles in his front, had returned to their plantations, and were encouraging the people to join them, he sent Captain Huck of the legion, with a detachment of about thirty or forty of that corps, twenty mounted men of the New-York volunteers, and sixty militia, to seize or drive them away. Captain Huck, encouraged by meeting with no opposition, encamped in an unguarded manner, was totally surprised and routed. The captain was killed, and only twelve of the legion, and as many of the militia, escaped.