| ACROSS |
| 1. | Radius Of Uncertainty (abbr.) |
| 4. | American Medical Association (abbr.) |
| 7. | Distress signal |
| 10. | At a great distance |
| 11. | Plant excrement |
| 12. | Chooses |
| 13. | Retirement account (abbr.) |
| 14. | Conciliate |
| 18. | Lipoprotein that transports cholesterol in the blood |
| 21. | Freehold land |
| 22. | Person who annoys others by constantly finding fault |
| 24. | Allow head to fall sleepily |
| 25. | Scottish cap |
| 28. | Peninsula of southwest Asia between the Red Sea and the Persian Gulf |
| 31. | Celtic language |
| 32. | Bar bill |
| 35. | State of nonexistence |
| 36. | 90 degrees |
| 37. | A genus of shrubby plants, including the heaths, many of them producing beautiful flowers |
| 39. | Born |
| 41. | Tree or shrub in the Birch family |
| 42. | Helper |
| 43. | Africa Soil Science Society (abbr.) |
| 45. | Compass dir. |
| 46. | Do over again |
| 47. | Opts |
| 49. | Playfully artful |
| 50. | Set |
| 52. | One more than two |
| 53. | French philosopher Descartes |
| 54. | To riddle |
| 56. | Volcano in Western Java |
| 62. | Keyboard modifier key |
| 65. | Cease |
| 66. | Biblical high priest |
| 67. | River (Sp.) |
| 68. | Nine, plus one |
| 69. | Supersonic Transport (abbr.) |
| 70. | Allow |
|
| DOWN |
| 1. | Radio Frequency Interference (abbr.) |
| 2. | Rowing implement |
| 3. | Mountain range |
| 4. | Viper |
| 5. | Make imperfect |
| 6. | Volcano in Mindanao |
| 7. | Health resort |
| 8. | Baseball player Mel |
| 9. | Compass dir. |
| 12. | Petroleum |
| 15. | Cold arid table-land, as in the Andes of Peru |
| 16. | A language that is deliberately created for a specific purpose |
| 17. | Small boy |
| 19. | Nucleic acid that carries the genetic information in the cell |
| 20. | A young wasp |
| 23. | E Mali city |
| 25. | Swap |
| 26. | NE Netherlands city |
| 27. | Distance measurement (Brit.) |
| 29. | Storage container |
| 30. | Standard of perfection |
| 31. | Snakelike fish |
| 32. | Pulls apart |
| 33. | The satellite of Uranus that is 12th in distance from the planet |
| 34. | A female chicken |
| 38. | Chief Executive Officer (abbr.) |
| 40. | Compass dir. |
| 41. | Moving or stirring |
| 44. | _-fi |
| 47. | Ancient Greek colony of southern Italy near the Gulf of Salerno |
| 48. | Sigma Iota Epsilon (abbr.) |
| 50. | A commissioned military rank (abbr.) |
| 51. | Conclusion |
| 53. | Strike |
| 55. | A British peer ranking below a Marquess and above a Viscount |
| 56. | Pacific Standard Time (abbr.) |
| 57. | Had dinner |
| 58. | Passive Optical Network (abbr.) |
| 59. | Affirmative reply |
| 60. | Thickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord |
| 61. | A young louse |
| 63. | Whopper |
| 64. | Small child |
