Feature

  1. Jensen: Intelligence a ‘Biological Rhythm’

    By
  2. Another Smallpox Case

    By
  3. Solar Constant: Angle vs. Distance

    By
  4. As the World Turns

    By
  5. Immune Foul-up in Juvenile Diabetes?

    By
  6. Delinquency as a Learning Disability

    By
  7. More Guests for Salyut 6

    By
  8. More Heat on the Dinosaur Debate

    By
  9. Front Matter

    By
  10. Strong Support for Virus in Human Cancer

    By
  11. Cooling Down

    By
  12. [Illustrations]: Doonesbury

    By