| ACROSS |
| 1. | Chewing product |
| 4. | Apply oneself diligently |
| 7. | Teat (slang) |
| 10. | Nonscientific branch of learning |
| 13. | _ tizzy (2 wds.) |
| 14. | Falsehood |
| 15. | Indian title of respect (Mr.) |
| 16. | Pass on |
| 17. | Monetary units of United Arab Emirates |
| 19. | American Automobile Association (abbr.) |
| 20. | Electrically charged atom |
| 21. | Sight organ |
| 22. | Large vase that usually has a pedestal or feet |
| 23. | Being at a high temperature |
| 24. | Thickening of tissue in the motor tracts of the lateral columns and anterior horns of the spinal cord |
| 26. | Title for a knight |
| 28. | Curvy letter |
| 29. | Allow |
| 30. | Slept |
| 34. | Shallow baking pan |
| 35. | Killed |
| 36. | Mountains (abbr.) |
| 39. | Black tropical American cuckoo |
| 40. | Fast jet |
| 42. | Observe |
| 43. | Expresson of surprise, comprehension, or mock astonishment |
| 44. | The inner or back room of a two-room cottage |
| 45. | American Revolutionary soldier Daniel (1747–1825) |
| 47. | _ de Janeiro |
| 48. | Turn aside suddenly |
| 49. | Or not |
| 50. | Playfully artful |
| 52. | Biblical high priest |
| 54. | Added to |
| 55. | Direct toward a target or goal |
| 56. | Two (Sp.) |
| 58. | Mayday |
| 60. | Chief or king in Benin or Nigeria |
| 61. | Elected rep. |
| 62. | Of or relating to a branch of Shiism noted for esoteric philosophy |
| 66. | The 18th letter of the Arabic alphabet |
| 67. | Conclusion |
| 68. | Third day of the wk. |
| 69. | A young goat |
| 70. | (biochemistry) Long linear polymer of nucleotides found in a cell |
| 71. | Volcano in Japan |
| 72. | Lair |
| 73. | First lady |
|
| DOWN |
| 1. | Sheep disease, caused by tapeworm larvae |
| 2. | University (slang) |
| 3. | Third month (abbr.) |
| 4. | Romp |
| 5. | Citrus fruits |
| 6. | It is so |
| 7. | Russian ruler of old |
| 8. | SW Asia republic |
| 9. | Transient Ischemic Attack (abbr.) |
| 10. | Goodbye (Sp.) |
| 11. | Debaucheries |
| 12. | Nine, plus one |
| 18. | Command |
| 22. | Mountain range |
| 23. | Higher Education for Development (abbr.) |
| 24. | Place in a line |
| 25. | Soviet premier 1918–24 |
| 27. | A young scorpion |
| 31. | A group of possums |
| 32. | Sliced dessert |
| 33. | Compass dir. |
| 34. | Keyboard key |
| 36. | Person of subnormal intelligence |
| 37. | Coming next after the second and just before the fourth in position |
| 38. | "Barney Miller" actor Jack |
| 40. | Compass dir. |
| 41. | A female animal or person |
| 46. | Jacques Cousteau's middle name |
| 48. | Symbol (abbr.) |
| 49. | National Aeronautics and Space Administration (abbr.) |
| 50. | American microbiologist and physician who developed a live-virus vaccine against polio (1957) |
| 51. | Woody, climbing, usually tropical plant |
| 53. | Come out of |
| 56. | Habitations of wild animals |
| 57. | Southwest Nigerian state |
| 59. | Sign of something about to happen |
| 60. | Boat paddle |
| 61. | Ocean |
| 62. | It would |
| 63. | Eisenhower's nickname |
| 64. | 54 in ancient Rome |
| 65. | Chemical element with properties similar to another |