Feature

  1. Filtrable Germs Need Not Be Extremely Small

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  2. New Steel-Making Materials Aid U. S. Defense Plans

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  3. Electrified Particles in Air May Explain “Curative Values”

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  4. Eddington Reveals Details of His Theory of the Electron

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  5. Eskimo Burial Mystery Cleared up at Point Barrow

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  6. Front Matter

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  7. First Glances at New Books

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  8. May Get Tularemia from Mosquito Bite

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  9. In Science Fields

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  10. Absolute Temperature: “A Classic of Science”

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  11. Height of Shooting Stars Measured with Wire Frame

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  12. First Welded Penstock Built in California

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