Page:Popular Science Monthly Volume 92.djvu/677

 "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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