...were veritable rivers of mud. Along this wretched way stumbled and plodded horse and man. Saturday afternoon, April 5th, the Federal advance guard on the right, consisting of Porter's division of Heintzelman 's Third Corps, suddenly came to a river. It was the Warwick, a sluggish stream, nearly cutting the Peninsula from Yorktown to the James, a distance of thirteen and a half miles. Beyond the river wa...