DCSiuGS ©avairy aim urtwery, pur-ticipated in the fight.More of Mosby’s Work,Richmond, Oct. 28.—An official dispatch from Gen. Lee Inst night says that on the 25th, Ccd. Mosby captured, near Bunker Hill, Brigadier-General Duffieand several other prisoners, with a number of horses.He killed a number of the enemy.Col. Mosby sustained no loss.Col. Mosby reports that scnce the advance of the enemy up the Manassas Gap railroad, he has killed, wounded and captured three hundred of them. His own loss being four wounded and one captured.Aegur, with twenty thousand men, is trying to protect the Manassas Gap road, and yet Mosby is playing riot with his working parties. Auger tries in vain to catch him. Mosby has managed to send him word that if he (Auger) interferes with him in Virginia, he will crass into Maryland; and has pledged his word to kill twenty-seven Yankees for every man of liis command who is murdered in cold blood by Auger. He will keep his word, too. In spite of his twenty thousand hirelings,