Science: Electronic Piper

For $35-a-month rent, the Electronic Trap Co. of Rochester, N. Y. offers a highly scientific rat eradicator. Taking advantage of the fact that rats fear blind alleys and new paths, the electronic rat trap is a floorless, open-ended box placed over a favorite rat run. The rat, seeing nothing suspicious, thinks he can scoot straight through. But the instant he is inside the trap — bang! An electronic eye slams down two doors, one in front and one behind him.

Seeking escape by the only likely-looking "exit," he pops through a little side door. An electric shock tickles his feet. He bolts...

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