1. 36th President of the United States.
4. German organist and contrapuntist (1685-1750).
8. The compass point that is one point south of due east.
11. A constellation in the southern hemisphere near Telescopium and Norma.
12. A condition (mostly in boys) characterized by behavioral and learning disorders.
13. Resinlike substance secreted by certain lac insects.
14. A periodic paperback publication.
15. The lower house of the parliament of the Republic of Ireland.
16. Type genus of the family Myacidae.
17. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
20. A public promotion of some product or service.
23. Jordan's port.
25. A river in north central Switzerland that runs northeast into the Rhine.
29. Someone who is morally reprehensible.
32. United States liquid unit equal to 4 quarts or 3.785 liters.
34. A plant hormone promoting elongation of stems and roots.
36. An associate degree in nursing.
38. Of superior grade.
41. A Chadic language spoken south of Lake Chad.
43. (of complexion) Blemished by imperfections of the skin.
44. A nonmetallic largely pentavalent heavy volatile corrosive dark brown liquid element belonging to the halogens.
45. A federal agency established to coordinate programs aimed at reducing pollution and protecting the environment.
48. A loose sleeveless outer garment made from aba cloth.
49. A light touch or stroke.
50. A small cake leavened with yeast.
51. Having undesirable or negative qualities.

1. A Tibetan or Mongolian priest of Lamaism.
2. (informal) Exceptionally good.
3. A sharp projection on an edge or surface.
4. A member of an agricultural people of southern India.
5. (Old Testament) In Judeo-Christian mythology.
6. The 22nd letter of the Greek alphabet.
7. A lipoprotein that transports cholesterol in the blood.
8. Any of various trees of the genus Ulmus.
9. Common Indian weaverbird.
10. Any of a number of fishes of the family Carangidae.
18. A compartment in front of a motor vehicle where driver sits.
19. South American wood sorrel cultivated for its edible tubers.
21. An informal term for a father.
22. A state in northwestern North America.
24. Unknown god.
26. Title for a civil or military leader (especially in Turkey).
27. An intensely radioactive metallic element that occurs in minute amounts in uranium ores.
28. Angular distance above the horizon (especially of a celestial object).
30. Submerged freshwater perennials.
31. Stout-bodied insect with large membranous wings.
33. Aircraft landing in bad weather in which the pilot is talked down by ground control using precision approach radar.
35. A former agency (from 1946 to 1974) that was responsible for research into atomic energy and its peacetime uses in the United States.
37. Plant with an elongated head of broad stalked leaves resembling celery.
38. A soft white precious univalent metallic element having the highest electrical and thermal conductivity of any metal.
39. Having nine hinged bands of bony plates.
40. (Babylonian) God of storms and wind.
42. The bill in a restaurant.
44. Tag the base runner to get him out.
46. A small pellet fired from an air rifle or BB gun.
47. The blood group whose red cells carry both the A and B antigens.