1. An organization of countries formed in 1961 to agree on a common policy for the sale of petroleum.
5. Having the color of caramel.
12. Standard temperature and pressure.
15. A member of an Indian people of northern California living along the Russian River valley and adjacent Pacific coast.
16. Any of various large edible marine gastropods of the genus Haliotis having an ear-shaped shell with pearly interior.
17. A branch of the Tai languages.
18. A town in north central Oklahoma.
19. Small silvery schooling fishes with protrusible mouths found in warm coastal waters.
20. A small piece of cloth.
21. Expressing deep personal emotion.
23. (astronomy) The angular distance of a celestial point measured westward along the celestial equator from the zenith crossing.
24. (biology) Having branches or flower heads that bend downward.
26. Annual or perennial herbs with large leaves that resemble the leaves of cabbages.
29. The lean flesh of a fish similar to cod.
30. French explorer (with Jacques Marquette) of the upper Mississippi River valley (1645-1700).
33. English monk and scholar (672-735).
36. A mountain range in western Russia extending from the arctic to the Caspian Sea.
39. (sometimes followed by `of') Having or showing realization or perception.
43. Used in combination to denote the middle.
44. A public promotion of some product or service.
45. An antibacterial drug (trade names Rifadin and Rimactane) used to treat tuberculosis.
46. A long lace for fastening boots.
49. Gone by.
50. Primitive chlorophyll-containing mainly aquatic eukaryotic organisms lacking true stems and roots and leaves.
51. A heavy odorless colorless gas formed during respiration and by the decomposition of organic substances.
54. Acquire or gain knowledge or skills.
56. Genus of East Indian trees or shrubs.
59. Italian poet (1569-1625).
61. The Mongol people living the the central and eastern parts of Outer Mongolia.
66. Behave in a certain manner.
69. Perennial of the genus Phytolacca.
71. A medicinal drug used to evoke vomiting (especially in cases of drug overdose or poisoning).
73. A master's degree in business.
74. The federal agency that insures residential mortgages.
75. (Japan) Ritual suicide by self-disembowelment on a sword.
77. An adult male person (as opposed to a woman).
78. An interest followed with exaggerated zeal.
79. An odorous gum resin formerly used in medicines.
80. A loose sleeveless outer garment made from aba cloth.

1. German industrialist who was the first in Germany to use an assembly line in manufacturing automobiles (1871-1948).
2. A range horse of the western United States.
3. An independent ruler or chieftain (especially in Africa or Arabia).
4. A supplement to a will.
5. A rotating disk shaped to convert circular into linear motion.
6. A unit of resistance equal to a billionth of an ohm.
7. The seventh month of the Moslem calendar.
8. A flat wing-shaped process or winglike part of an organism.
9. The time period between dawn and noon.
10. Provide with a coating, as of chocolates.
11. A soft heavy toxic malleable metallic element.
12. Any of a number of tiny parallel grooves such as.
13. Express gratitude or show appreciation to.
14. North Atlantic sea poacher.
22. Any of three poisonous colorless isomeric phenols.
25. An Indian tree of the family Combretaceae that is a source of timber and gum.
27. A highly unstable radioactive element (the heaviest of the halogen series).
28. The herpes virus that causes infectious mononucleosis.
31. Mostly tropical songbird.
32. A lake in northwestern Russia north of St. Petersburg.
34. An association of people to promote the welfare of senior citizens.
35. Little known Kamarupan languages.
37. German mathematician (1804-1851).
38. A sweetened beverage of diluted fruit juice.
40. The sixth month of the civil year.
41. Port city that is the capital and largest city of Latvia.
42. An organic compound that contains a hydroxyl group bonded to a carbon atom which in turn is doubly bonded to another carbon atom.
47. Covered with paving material.
48. A radioactive element of the actinide series.
52. A town in northern Egypt.
53. A wad of something chewable as tobacco.
55. A member of an Athapaskan people that migrated to Arizona and New Mexico and Utah.
57. An organization of independent states to promote international peace and security.
58. The capital of the state of Kansas.
60. A summary that repeats the substance of a longer discussion.
62. A curve that lies on the surface of a cylinder or cone and cuts the element at a constant angle.
63. A subsidiary proposition that is assumed to be true in order to prove another proposition.
64. Cubes of meat marinated and cooked on a skewer usually with vegetables.
65. A city in southern Turkey on the Seyhan River.
67. An ancient Hebrew unit of dry measure equal to about a bushel.
68. (of persons) Highest in rank or authority or office.
70. A strategically located monarchy on the southern and eastern coasts of the Arabian Peninsula.
72. (informal) Informed about the latest trends.
76. An artificial language for international use that rejects rejects all existing words and is based instead on an abstract analysis of ideas.