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      Scientific American November 18, 1911

      The Genesis of the Rare Earths

      Their Relation to the Earth's past History

      • By R. B*amp*ouml;hm on November 18, 1911

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      More in the November 18, 1911 issue of Scientific American
      • Finǵer Prints
      • Roman Ruins in North Africa
      • The Mercadier-Maǵunna System of Teleǵraphy
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