... offered was trifling, and as a consequence but little damage was done on either side. Capt. Dahlgren, of Gen. Sigel's staff, who had volunteered for the expedition, was sent with a detachment to Salem --ten miles--but found no enemy. Returning in advance of his command with two men, one of our own pickets mistaking them for the enemy, fell back upon the main command. The man finally discovered ...