There, suspended by one hand between the baggage-car and the tender, with the other he loosened the safety chains; but, owing to the traction, he would never have succeeded in unscrewing the yoking-bar, had not a violent concussion jolted this bar out. The train, now detached from the engine, remained a little behind, whilst the locomotive rushed forward with increased speed. Carried on by the force already acquired, the train still moved for several minutes; but the brakes were worked and at last they stopped, less than a hundred feet from Kearney station. The soldiers of the fort, attracted by…