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1. 

   To Plants Red Light Means “Go” but Green Is “Stop” Signal

   By Science NewsMarch 27, 1937

2. 

   Airships to Make Their Own Ballast while Aloft

   By Science NewsMarch 27, 1937

3. 

   Midwest Conquering Goiter with Iodine in Salt Cellars

   By Science NewsMarch 27, 1937

4. 

   Nature Ramblings: Unknown Neighbors

   By Science NewsMarch 27, 1937

5. 

   Geography Gives Clue to Prevention of Tooth Decay

   By Science NewsMarch 27, 1937

6. 

   First Glances at New Books

   By Science NewsMarch 27, 1937

7. 

   Front Matter

   By Science NewsMarch 20, 1937

8. 

   Microfilms Hailed as New Way to Duplicate Books, Pictures

   By Science NewsMarch 20, 1937

9. 

   Jungle Life Blamed for Ancient Man’s Flat Head

   By Science NewsMarch 20, 1937

10. 

    Higher Octane Aviation Fuels Would Save $1,000 a Trip

    By Science NewsMarch 20, 1937

11. 

    Has Lost Pale-Face Tribe Been Traced to New Guinea?

    By Science NewsMarch 20, 1937

12. 

    [Photograph]: Old Doubt

    By Science NewsMarch 20, 1937