Feature

  1. Synthetic Riboflavin

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  2. Coffee, Tea and Beer Can All Contribute Vitamins

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  3. New Machines and Gadgets

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  4. Front Matter

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  5. Transcontinental Network

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  6. Optical Gunsight

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  7. Foot Soldiers Get Airborne Rocket Launcher

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  8. Projection Television

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  9. [Photograph]: Rough Handling

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  10. Mumps Epidemic Checked

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  11. New “Earthquake” Bomb

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  12. New Research Field

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