upon a clearing with a line of breastworks and batteries apparently a mile in extent.
The column was immediately halted, and a reconnoissance being made by Capt. Williamson, Topographical Engineer on Gen. Burnside's staff, it was found deserted.
The work must have required the labor of a thousand men for a month, being construcl (for I happened to be with the party for an hour or so) be bagged by some marauding squadron of rebel cavalry, who would dash out and take us in the rear.
Capt. Williamson and Capt. Plotter and Lieut. Strong were sent ahead to reconnoitre, and after riding half a mile came upon some cavalry pickets, by whom they were hailed andousness that anything unusual had happened, and went on with the conversation.
Special mention has been made by Gen. Burnside of the reconnoissances by Capt. Robert Williamson, of the regular army, Topographical Engineer on his staff.
On every occasion when called upon, he executed his orders with the most perfect self-possessi