...marched. Passing through Cedarville, Ninevah and Ragtown, we encounter, with the squadron of cavalry at our head, a detachment of the enemy's cavalry, and give chase to them for four or five miles. Wickham , with the two brigades of cavalry, had turned off to the right and followed towards Whitepost the bulk of the enemy's cavalry. We camp on the Opequon near Frederick's mill, and Wickham is ordered a...