< Page:Popular Science Monthly Volume 92.djvu
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"V, ^»vc» ui war Are Active Enough
���^H o^ u^ picture shows a row of cotes and above them pigeons in exer Jse flTght
��These birds are used to carry messages
S;rHn;s '"?hi'° ^^^.^-^^-rterTSd tne lines. This picture shows how the
on to the pigeon's leg for safe conveyance
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