...r and an escort of about a dozen cavalry-men, and coming toward our headquarters camp. He was riding his white pacer, a horse which had been captured from General Breckinridge's adjutant-general at Missionary Ridge . But, instead of striking a pacing gait now, it was at every step driving its legs knee-deep into the quicksand with the regularity of a pile-driver. As soon as Sheridan dismounted, he was asked ...