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Elements Which Refuel Stars Found in Planetary Nebulae

Animal That Is Still Alive Has Produced 21,000 Generations

Boron Lack Causes Wild Growth in Plant Cells

Dehydrated Foods May “Spoil Themselves”

Nature Ramblings: Symbol of Union

Penicillin Stops Germ Growth at Dilution of 1:12,000,000

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Front Matter

New Electron Spectrometer May Identify Molecules

[Photograph]: Protection

“David” Comet Loses Fight with “Goliath” Jupiter

Nine Girls, 31 Boys Awarded Science Talent Search Trips