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  1. American War of Independence
  2. Pietersite
  3. Antique Stock Certificate IV
  4. Colon blood vessels, light micrograph
  5. Arthritis of the knee, X-ray
  6. A composite showing different stages of the 2010 solstice total moon eclipse
  7. Apache Men, c1906
  8. Photograph of logarithmic slide rule
  9. Indigo Agate C
  10. Ball Play Of the Choctaw, 1840s
  11. South American Independence
  12. General Curtis LeMay and President Kennedy
  13. Space Suit
  14. Spatial dimensions, conceptual artwork
  15. Vintage American Civil War print of The Battle of Cherbourg
  16. The Quack Frog, illustration from Aesop's Fables
  17. Austenaco, Great Warrior, Commander in Chief of the Cherokee Nation
  18. Stacked Agate I
  19. Watercolor Agate I
  20. Agate Geode I
  21. Study of the Human Figure, Lateral View
  22. Stacked Agate II
  23. Famous prehistoric rock paintings of Tassili N'Ajjer, Algeria
  24. Agate Studies IV
  25. Solar System (Colored)
  26. Earth Agate E
  27. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  28. Flatboat, 19th Century
  29. The Planets, excluding Pluto
  30. Living Relatives of Dinoaurs
  31. The Rainforest
  32. A Mad Teaparty By Charles Folkard
  33. Titanic survivors in lifeboat
  34. Frank Whittle's early development of the jet engine
  35. The Sinking of the Laconia in 1942
  36. Houdini Diver Suit
  37. Mars
  38. Decorative Lintel from the ancient Mayan city of Yaxchilan, Chiapas, Mexico
  39. Purple Watercolor Agate I
  40. Superior view of human brain with colored lobes and labels
  41. Vitruvian Skeleton
  42. Moss Agate
  43. Desk Tools I
  44. Von Karman Vortices - USGS Earth as Art
  45. Map Of the Battle Of Gettysburg, 1863
  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