Across

1. Historical periods

5. Concur

10. Vipers

14. Tracks

15. Water soaked soils

16. Gush

17. Bowels

19. Former Italian currency

20. Spy agency

21. Parental sisters

22. Install (2 words)

23. Circus performer

25. Stealer

27. Website address

28. Falling as drops

31. Produce a literary work

34. Young horses

35. Caviar

36. Anagram of “Silo”

37. On the up and up

38. Left

39. L

40. Femme fatale

41. Flower jars

42. How a snake moves

44. Cacophony

45. Hag

46. Female

50. A nymph of lakes

52. Believe in

54. Slime

55. Against

56. Gossamer

58. Seed-bearing capsule

59. Parental brother

60. Coffee dispensers

61. Articulates

62. S-shaped moldings

63. Zero

Down

1. Genus of heath

2. Anagram of “Incur”

3. Fragrant oil

4. South southeast

5. True

6. Gleam

7. Deliver a tirade

8. Asthenopia

9. S

10. Not awake

11. Quick-tempered persons

12. South American country

13. Exchange

18. A fencing sword

22. Tastes

24. In baseball, 3 per inning

26. Sword handle

28. Judges

29. Not a single one

30. Obtains

31. Troubles

32. Small brook

33. Illegally

34. Persistent investigating

37. Mortgage

38. Desire

40. Not barefoot

41. Panorama

43. Paths

44. Plates

46. Double

47. Ancient Greek marketplace

48. Discovered

49. Civet-like mammal

50. Apprehends

51. Dwarf buffalo

53. Dash

56. Twosome

57. Religious sister