Sex-Change?

1. Windows of the Soul / Elixir of Youth1966-01-02 2. The Troubled Mind / Triple-A. S.1966-01-16 3. A Man of Two Visions / The Scientist Applied1966-01-30 4. The Dolphins that Joined The Navy / A Theory of The Earth1966-02-13 5. Route 1281966-02-27 6. The Beginning of Life / Science Friction1966-03-13 7. So you want to be an Inventor? / The Severed Hand1966-03-27 8. Chance and Decay / Meteorite Mystery1966-04-10 9. Towers of Ilium / The Exploding City1966-04-24 10. Man in Space1966-05-08 11. Destination Mars / Editors in Conference"1966-05-22 12. Man meets Duck / The Picture Machines1966-06-05 13. Where must the Money Go? / Phantoms Incorporated1966-06-19 14. Genes in Action / Scientists and War1966-07-03 15. The Lonely Children1966-07-17 16. Man of Science / 'Nature' Tomorrow1966-07-31 17. M.I.T.'s ABC / The Disturbed Child1966-09-25 18. Ten Years in the Antarctic1966-10-10 19. The Athlete1966-10-24 20. From Peenemunde to the Moon1966-11-07 21. Sex-Change?1966-11-21 22. The Structure of Life1966-12-05 23. The Wages of Science1966-12-19