...rst New-Jersey cavalry until the morning of the sixteenth instant. At one o'clock A. M., Captain Ayres returned with his detachment, having patrolled the country thoroughly to within three miles of Leesburgh , but found nothing of the enemy. About nine o'clock on the morning of the sixteenth instant, I proceeded toward Aldie, and when near there I threw out patrols and pickets in the different roads, an...