...hin a mile and a quarter of the bridge, we discovered the outlying picket guard of the enemy, and were challenged, Who comes there? I replied, Who stands there? A horseman attempted to leave. Corporal Ellerson , of Company H, sprang in advance, directing him to halt. I, supposing the enemy to be in force, gave the command to fire and charge. In a moment the affair was over, twenty or thirty shots had be...