Feature

  1. Tracing Cloth Transparent to Ultraviolet

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  2. The Background of Modern Physics

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  3. U.S. Observatory Asks New Instruments

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  4. Nature Ramblings: Coal-Pile Botany

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  5. Life Not Limited

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  6. First Glances at New Books

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  7. Classics of Science: Surface of Jupiter

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  8. Front Matter

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  9. Germans Find Year’s First Comet

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  10. Earthquakes of 1928

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  11. Television, Though Crude, Has Arrived

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  12. 5,000,000 Volt Artificial Lightning

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