Manhattan's ingenious American Museum of Natural History last week got ready to exhibit the newest trick in museum educational work. Back of a picket fence the visitor sees a stuffed hen looking at a painting of other hens and a rooster in a barnyard (see cut). As the visitor looks a loudspeaker narrates: "The hens in the barnyard seem to us all very much alike. We would have great difficulty in distinguishing one from another if we did not put rings or other identification marks on their legs. But to the hen every...
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