1. Worthless or oversimplified ideas
4. Percentage (abbrev.)
7. Leg covering
12. Protects the environment
13. Mauna ___, Hawaiian volcano
14. Long narrow straight valley on the moon
15. "Metamorphic structures"
17. Submit yourself (to a debt or obligation)
18. Tibeto-Burmese people
19. The bill in a restaurant
21. Electro-Magnetic Field
22. A European river
24. Prefix denoting "in a"
25. Talks
26. Daughters of the American Revolution
27. Industriously
29. Disqualify
31. Absorbed liquid
35. Gets up
37. Doctor of Education
38. Large burrowing rodent of South America
41. __ Ling, Chinese mountain range
42. Makes lively
43. Express pleasure
44. A woolen cap of Scottish origin
45. Shaft horsepower
46. Capital of Bangladesh
48. Endurance
52. Organic compound
53. Type of tree
54. Playful dog bite
55. Excessive fluid accumulation in tissues
56. Born
57. Includes Ewe and Fon languages
2. Military mailbox
3. Green Bay football players
4. A way to work the soil
5. Against
6. Preferences
7. Baby's bed
8. Ancient Hebrew unit of liquid measure
9. Genus of hollyhocks
10. Exactly vertical or true
11. Slaves
20. Came up
22. Not divisible by two
23. Family of languages of southeast Asia
24. Dog Chow brand
25. A swindle
27. A block of soap or wax
28. ___ Angeles
30. The cry made by sheep
32. A way of looking
33. Electronic Data Processing
34. Doctor of Dental Services
38. Religious father
39. Expressed pleasure
40. Pursue
42. Philemon (Biblical abbrev.)
44. Source of the Blue Nile
45. Fermented rice wine
47. Actress ___ Basinger
49. Scottish for "To"
50. Horny projecting jaws of a bird
51. Gorilla