...proved of great service to me, and for which I desire to return my thanks. I was also furnished by Gen. Brannan's order with fifty men from the New-York State Volunteer En gineers, under command of Capt. Eaton , provided with the necessary implements for cutting the railroad, etc. We were soon under way, and had proceeded some three miles up the river, when the gunboats turned around and came back, in c...