...ix miles beyond the Rapidan. Slight skirmishing was kept up on Saturday morning, and in the afternoon of that day, about 4 o'clock, an attack was made upon the enemy by a portion of the division of Gen. Ewell , and a brigade under Gen. C. S. Winder. Over 300 prisoners were captured in this engagement, including thirty commissioned officers. One of the latter admits that a Federal division was cut t...