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TRAGEDY CAPS THE TEST.
"Pass the signal!" directed Tom.
A railroad man with a flag made several swift moves.

Down the track an engineman, in his cab, answered with a short blast of, the whistle.

Then he threw over the lever, and a train of ten flat cars started along in the engine's wake.
It was the first test--the "small test," Tom called it--of the track that now extended across the surface of the Man-killer.
On each flat car were piled ten tons of steel rails, to be used further along in the construction work.

With engine, cars and all, the load amounted to one hundred and fifty tons, the pressure of which would be exerted over a comparatively short strip of the new track that now glistened over the Man-killer.
Mounted on his pony, Harry Hazelton had galloped a considerable distance down the track.