... subsequent marches by the long wagon-train, and the embarrassment of protecting it, was responsible for the loss of time which made, on the whole, a sad failure of the expedition. On the 29th, the Baltimore and Ohio R. R. was crossed and torn up at Hood's Mills. At Westminster about 5 P. M., a squadron of Federal cavalry was routed, and the head of the column bivouacked that night midway between Wes...