way, until its power was lost. I use the term 'bullet,' though as I
said, it isn't properly one."

"By Jove, Tom, it certainly is a dangerous weapon!"

"Yes, the range-limit idea is a new one. That's what I've been
working on lately. There are other features of the gun which I'll
explain later, particularly the power it has to shoot out luminous
bars of light. But now we'll see what it will do to the image."

Tom took his place at the end of the range, and began to adjust some
valves and levers. In spite of the fact that the gun was larger than
an ordinary rifle, it was not as heavy as the United States Army
weapon.

Tom aimed at the armor-plate, and, by means of an arrangement on the
rifle, he could tell exactly when he was pointing at the scarecrow,
even though he could not see it.

"Here she goes!" he suddenly exclaimed.

Ned watched his chum. The young inventor pressed a small button at
the side of the rifle barrel, about where the trigger should have
been. There was no sound, no smoke, no flame and not the slightest
jar.

Yet as Ned watched he saw the steel plate move slightly. The next
instant the scarecrow figure seemed to fly all to pieces. There was
a shower of straw, rags and old clothes, which fell in a shapeless
heap at the end of the range.