Across

1. Potsdam pronoun

4. Writer Hunter

8. “SOS” pop group

12. “Inka Dinka ___”

13. Prefix with masochism

14. Egg-shaped

15. Architect Maya

16. Cruise lodging unit

18. Student at the Sorbonne

20. Become liquid

21. Yang's counterpart

22. “Star Wars” weapon

26. Highest point

28. Years, in old Rome

31. Suffix with lion

32. Dove's sound

33. Vatican leaders

34. Wire diameter measure

35. Prefix meaning “recent”

36. Gumbo goodie

37. Gis' addresses

38. Authors Ferber and O'Brien

40. 1960s gridiron org.

41. Something very funny

42. 44. River near Nottingham

47. Curio

51. Restaurant bill

52. Another: Sp.

53. “You bet!”

54. “___ bodkins!”

55. “___ in Boots”

56. Boxing officials

57. Get a little shuteye

Down

1. Not doing anything

2. Spiral shape

3. Newlyweds' trip

4. Ruhr industrial center

5. Dyer's container

6. Edenite

7. Brief letter

8. It's connected to the left ventricle

9. Fan's rebuke

10. Life story, briefly

11. Naval officer: Abbr.

17. Immigration Island

19. Engage in rivalry

23. Fool

24. Opera singer Pinza

25. Electrical units

26. Clearasil's target

27. Like many dorms

28. Just great

29. “All Things Considered” airer

30. Teacher's org.

33. Put forward

37. Chad's cont.

39. Vicinities

40. Lawyers: Abbr.

42. Annoying smell

43. Box-office total

45. Zilch, to Pedro

46. One of 16 in a cup: Abbr.

47. “Alley ___!”

48. Air conditioner meas.

49. PSAT takers

50. British fliers: Abbr.

Solution on page 350