Feature

  1. Oceans Half Billion Years Old, Their Salt Tells Scientists

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  2. Ice Floe Rotation Prevents Magnetic Variation Measures

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  3. Millions of Americans Fail to Affect National Economy

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  4. Youth at the Wheel Found Skilful but a Great Hazard

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  5. Hunt in New Guinea for Foe of Sugar Cane Insect Pest

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  6. Poor Military Aircraft Must Be Avoided through Research

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  7. In Science Fields

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  8. Front Matter

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  9. Gasoline-Fueled Motors May Be Banned from Airplanes

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  10. Ship’s Officer Saw Two Setting Moons

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  11. Saliva from Vampire Bats Contains No Anti-Coagulant

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  12. First Glances at New Books

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