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Show Siren Helps Surgeons In Search for Metal NEW YORK. A baby siren which shrieks when it gets close to human flesh where a bit of metal is buried was exhibited to the Medical Society of the State of New York recently. The siren goes up the scale as it nears the metal, and changes so-ac-curately that by the sound a physician physi-cian can judge just about how close he is and whether he is approaching approach-ing the metal broadside, or end on. The finder was shown in the scientific sci-entific exhibit of Dr. John J. Moor-head Moor-head of New York city. It is a new development in a metal finding finger fin-ger which was made at his suggestion sugges-tion several years ago. The inventor inven-tor is Samuel Berman, research and test engineer, of the New York city transit system. A box which a man can carry easily in one hand contains con-tains the entire apparatus. It plugs into an ordinary light socket. |