"Surely. The electric bullets will pierce anything. They'll go through a brick wall as easily as the x-rays do. That's one valuable feature of my rifle. You don't have to see the object you aim at. In fact you can fire through a house, and kill something on the other side."
"I should think that would be dangerous."
"It would be, only I can calculate exactly, by means of an automatic arrangement, just how far the charge of electricity will go. It stops short just at the limit of the range, and is not effective beyond that. Otherwise, if I did not limit it and if I fired at the scarecrow, through the piece of steel, and the bullet hit the figure, it would go on, passing through whatever else was in the 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 balls 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
