1. Twenty Thousand Leagues Under the Sea 2. My Mother’s Grave 3. A Quick Race 4. That Dog of Mine 5. He Led a Useful Life 6. The Difference a Teacher Can Make 7. Death of a Gull 8. Elsa Kills a Buffalo 9. The Whistle Language of La Gomera 10. Rescue Under the Sea 11. School’s Out 12. A Miracle at Christmas 13. Anecdotes of Birds 14. The First Biologist 15. The Dragon That Did Not Die 16. Marlin Perkins’ World 17. Numbers on the Brain 18. Signals from Space 19. The Warning Shot 20. The Two-year Apple 21. Manners Here, Manners There 22. Lost over the Atlantic 23. Safeguarding Life 24. The Rainbow Pilgrimage 25. Insect Life in Winter 26. Brandywine Ford (1) 27. Brandywine Ford (2) 28. Swiss Watch School (1) 29. Swiss Watch School (2) 30. Making Tracks 31. Milk 32. The Great Migrator 33. School and Sports in Ancient Greece 34. The World of the Wanderer 35. The Scientist and the Sensitive Snake 36. Sounds Versus Symbols 37. Telltale Trees 38. Why Are You Laughing? 39. Conversation with a Chimpanzee 40. A Full-time School Called Life 41. Born to Win 42. Why Study Math? 43. Cleaner Ways of Travel 44. Success Stems from the Positive Habits 45. Co-operate with the Inevitable 46. The Black Man in the Picture 47. Superstitious? Here’s Why! 48. In Search of Silence 49. Sleepwalking—Fact or Fancy? 50. Bittersweet Companions 51. Twins, Genes, and Environment 52. Needed: An International Language 53. The Bright Side of Pessimism 54. The Struggle for Wisdom (1) 55. The Struggle for Wisdom (2) keys
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