HERE was but one hope left, and this was that the telemeter might be wrong. But of this there was very little chance, as Dr. Giles had taken the greatest precautions to secure instruments that would be perfectly accurate. In fact, as it turned out in the sequel, the telemeter was correct to within a very small fraction of an inch.

But William did not know this at the time, and, in his anxiety to learn the truth at all costs, he glanced around at the different instruments in the car, and his attention was attracted to the spring balance already mentioned. To his surprise, the pound weight now exerted such a pull that the needle pointed to two ounces.

"What!" exclaimed William, in great astonishment. "Is it possible that objects in the car are