...w-York cavalry, advanced with his command, consisting mainly of the Ninth New-York cavalry, under the immediate command of Major Knox, to Berryville, accompanied, as the previous advance had been, by Gen. Stahel , and followed closely by Col. Wyndham, with a small portion of his command not otherwise engaged, as a reserve force. The town was found to be occupied by a part of White's command, the Fourth, Sev...