...a large Federal column on his right wing, hastened to reinforce it, and at half-past 4 o'clock withdrew Wilcox's division from the place it occupied on his left, to send it to take a position between Kemper and Jones. Porter, therefore, by his mere presence had succeeded in drawing or in detaining at the extreme Confederate right six brigades; that is to say, one half of Longstreet's corps: two of Kem...