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  1. Hebrew Bible, 1299. Ark of the Covenant open showing Tablets of the Law
  2. Famous prehistoric rock paintings of Tassili N'Ajjer, Algeria
  3. Mushroom Chart I light
  4. American War of Independence
  5. Pietersite
  6. Colon blood vessels, light micrograph
  7. Petrarch. Italian poet. The in Triumph of Love (15th c.) National Library, Madrid
  8. A composite showing different stages of the 2010 solstice total moon eclipse
  9. Arthritis of the knee, X-ray
  10. Apache Men, c1906
  11. Photograph of logarithmic slide rule
  12. South American Independence
  13. Ball Play Of the Choctaw, 1840s
  14. Indigo Agate C
  15. General Curtis LeMay and President Kennedy
  16. Vintage American Civil War print of The Battle of Cherbourg
  17. Spatial dimensions, conceptual artwork
  18. Austenaco, Great Warrior, Commander in Chief of the Cherokee Nation
  19. The Quack Frog, illustration from Aesop's Fables
  20. Stacked Agate I
  21. Study of the Human Figure, Lateral View
  22. Watercolor Agate I
  23. Agate Geode I
  24. Solar System (Colored)
  25. Earth Agate E
  26. Stacked Agate II
  27. Flatboat, 19th Century
  28. The Planets, excluding Pluto
  29. The Rainforest
  30. Frank Whittle's early development of the jet engine
  31. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  32. Living Relatives of Dinoaurs
  33. Moss Agate
  34. Titanic survivors in lifeboat
  35. Houdini Diver Suit
  36. Mars
  37. Antique Stock Certificate IV
  38. Decorative Lintel from the ancient Mayan city of Yaxchilan, Chiapas, Mexico
  39. Superior view of human brain with colored lobes and labels
  40. Vitruvian Skeleton
  41. Balance
  42. Desk Tools I
  43. Von Karman Vortices - USGS Earth as Art
  44. Purple Watercolor Agate I
  45. Book
  46. Sohrab Facing the Tent of the Persian Army Leaders. Shahnameh. The Book of Kings. 16th c
  47. Pi to 2198 decimal place
  48. The bones of the jaw