New York: D. Van Nostrand, 1864.
Large folding map. 94pp. + 16pp. of publisher's ads. 8vo, original red cloth, some edges and corners worn, spine expertly rebacked in modern cloth, two 1 and 1/2 inch tears in folds of map with no loss of text, small light dampstain to top margin, title page and map with light foxing. New York: D. Van Nostrand, 1864. First Edition.
"Barnard was chief engineer of the Army of the Potomac in McClellan's Peninsular campaign in which he (Barnard) conducted the siege of Yorktown and directed the engineering operations on the front of Richmond." Dictionary of American Biography, Vol. I, p. 627.