1. The 21st letter of the Greek alphabet.
4. Large bamboo having thick-walled culms.
10. A religious belief of African origin involving witchcraft and sorcery.
13. A river in north central Switzerland that runs northeast into the Rhine.
14. A port city in southwestern Turkey on the Gulf of Antalya.
15. Something that remunerates.
16. Green algae common in freshwater lakes of limestone districts.
18. Influential German idealist philosopher (1724-1804).
19. A loose sleeveless outer garment made from aba cloth.
20. The capital of Turkey.
22. Essential oil or perfume obtained from flowers.
24. Being one hundred more than three hundred.
26. A name that has been assumed temporarily.
30. A small brownish spot (of the pigment melanin) on the skin.
34. An alloy of copper and zinc (and sometimes arsenic) used to imitate gold in cheap jewelry and for gilding.
36. Precipitation of ice pellets when there are strong rising air currents.
37. Title for a civil or military leader (especially in Turkey).
38. A ductile gray metallic element of the lanthanide series.
39. Light informal conversation for social occasions.
41. Being one more than six.
42. Capital and largest city of Italy.
44. A soft silvery metallic element of the alkali earth group.
46. A genus of Platalea.
48. Someone who works (or provides workers) during a strike.
50. An organization of countries formed in 1961 to agree on a common policy for the sale of petroleum.
53. An esoteric or occult matter that is traditionally secret.
57. Capital and largest city of the Czech Republic.
61. An informal term for a father.
62. An associate degree in applied science.
63. Lining of the stomach of a ruminant (especially a bovine) used as food.
66. A strong solution of sodium or potassium hydroxide.
67. An atom having a valence of one.
68. Mild yellow Dutch cheese made in balls.

1. Large burrowing rodent of South and Central America.
2. German chemist who was co-discoverer with Lise Meitner of nuclear fission (1879-1968).
3. A republic in the Middle East in western Asia.
4. A flat-bottomed volcanic crater that was formed by an explosion.
5. A public promotion of some product or service.
6. East Indian tree bearing a profusion of intense vermilion velvet-textured blooms and yielding a yellow dye.
7. (botany) Of or relating to the axil.
8. Related by blood.
9. Animal food for browsing or grazing.
10. Large elliptical brightly colored deep-sea fish of Atlantic and Pacific and Mediterranean.
11. A small cake leavened with yeast.
12. The eighth month of the civil year.
17. The seventh month of the Moslem calendar.
21. A radioactive element of the actinide series.
23. A school teaching mechanical and industrial arts and the applied sciences.
25. A particular geographical region of indefinite boundary (usually serving some special purpose or distinguished by its people or culture or geography).
27. A company emblem or device.
28. (Islam) The man who leads prayers in a mosque.
29. An enclosed space.
31. (Polynesian) An alcoholic drink made from the aromatic roots of the kava shrub.
32. Being three more than fifty.
33. English essayist (1775-1834).
35. Cubes of meat marinated and cooked on a skewer usually with vegetables.
40. A pale rose-colored variety of the ruby spinel.
43. United States writer (born in Poland) who wrote in Yiddish (1880-1957).
45. The blood group whose red cells carry both the A and B antigens.
47. A sharp hand gesture (resembling a blow).
49. (of complexion) Blemished by imperfections of the skin.
51. Address God.
52. Freedom from difficulty or hardship or effort.
54. (Babylonian) God of storms and wind.
55. A Tibetan or Mongolian priest of Lamaism.
56. (Old Testament) In Judeo-Christian mythology.
58. A unit of pressure.
59. Strong liquor flavored with juniper berries.
60. A federal agency established to coordinate programs aimed at reducing pollution and protecting the environment.
64. An artificial language for international use that rejects rejects all existing words and is based instead on an abstract analysis of ideas.
65. A Mid-Atlantic state.