Feature

  1. National Science Fair Goes to Detroit in 1968

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  2. Science Fair Award Winners

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  3. Summer Stars Begin to Appear

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  4. Front Matter

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  5. Telstar II Launched

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  6. Patents of the Week

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  7. Nitrogen Tests Aid in Dating Fossils

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  8. Fourth Orbital Spaceflight

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  9. [Photograph]: One-Step Power

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  10. Middle-Depth Submarine for Ocean Studies

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  11. Anti-Cancer Drug Used

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  12. [Photograph]: Skycrane

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