...s verified by an endorsement to that effect on the back of the letter, written and signed by Gen. Beauregard at Manassas Junction, and requesting that safe conduct might be given to Capt. Taylor. Col. Porter accordingly sent Capt. Taylor, accompanied by an officer and an orderly, to the Headquarters of Gen. McDowell, at Arlington, where they arrived at seven o'clock in the evening, and were detained ther...