...graph wires and obstructed the railroad. We reached at daylight. Hyatistown, on McClellan's line of wagon communication with Washington, but we found only a few wagons to capture and pushed on to Barnsville , which we found just vacated by company of the enemy's cavalry. We had here corroborated what we had heard before, that Stonemen had between 4,000 and 5,000 troops about Poolesville and guarding th...