...e Ohio troops on their unfortunate reconnoissance of this point, some weeks since, is still standing where it was fired upon from the masked battery. Leonard B. Perkins, a well-known Union man of Fairfax County , acts as guide to the division. General Tyler's staff will spend the night at the house of Mr. J. B. Bowman, another enthusiastic Union man, who made himself so obnoxious to the rebels by transpo...