...ing of the skirmishers. While this disposition was going on, the railroad agent informed me that two more troop trains were on the road, and would arrive by one o'clock. These were the residue of General Ricketts ' division, three regiments-making a very important reinforcement. About eight o'clock A. M., the enemy marched by the pike from Frederick, and threw out skirmishers, behind whom he put his guns i...