Humane Rat Trap – Barrel Rat Trap – A suburbanite successfully trapped a bunch of rats by stretching a piece of stout elastic paper on the top of an open barrel.
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Excerpt from: THE BOY MECHANIC – BOOK 3 – 800 THINGS FOR BOYS TO DO
1919, POPULAR MECHANICS PRESS CHICAGO
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Spreading food on this paper he allowed it to remain until the suspicions of the rats were allayed, then he cut two right-angled slashes in the paper with a razor.
Next morning he found seven of the pests in the barrel.
The Paper Stretched over the Barrel Top was Cut after Feeding the Rats on It for Some Time