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1. 

   Ultraviolet Light Used in New Photographic Process

   By Science NewsDecember 12, 1931

2. 

   Cheap Coals, Reduced to Powder, Make Superior Fuel

   By Science NewsDecember 12, 1931

3. 

   Study Shows Cancer Varies with Nationality

   By Science NewsDecember 12, 1931

4. 

   Means Found for Measuring Amount of Vitamin B Needed

   By Science NewsDecember 12, 1931

5. 

   Forest Fire Fighters Drill Their Own Wells

   By Science NewsDecember 12, 1931

6. 

   Nature Ramblings: Winterberry

   By Science NewsDecember 12, 1931

7. 

   Tracks of Cosmic Rays Seen by Experimenters

   By Science NewsDecember 12, 1931

8. 

   First Glances at New Books

   By Science NewsDecember 12, 1931

9. 

   Front Matter

   By Science NewsDecember 5, 1931

10. 

    Gravity and Electricity Are Merged in New Mathematics

    By Science NewsDecember 5, 1931

11. 

    Electromagnetism Explained by Riemannian Geometry

    By Science NewsDecember 5, 1931

12. 

    [Photograph]: Memorial to Columbus

    By Science NewsDecember 5, 1931