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  1. Oregon. Close-up of Owyhee Picture Jasper stone
  2. Wyoming - USGS State Mosaic
  3. Cingulate gyrus in the brain, artwork
  4. Wright Flyer sculpture at Wright Brothers National Memorial, North Carolina
  5. Relief depiction of Ramses II, Temple of Luxor, Egypt
  6. Mt. Etna - USGS Earth as Art
  7. Ambassador George Bush
  8. Solar System (Minimal)
  9. Molecule Estrogene
  10. Oregon - USGS State Mosaic
  11. San Luis, Argentina - USGS Earth as Art
  12. Boxing
  13. Conceptual image of platelet, red blood cell and white blood cell
  14. Internal view of the human heart
  15. Rocky Mountains - USGS Earth as Art
  16. Illustration of strip of land known as the 'fertile crescent'
  17. Vintage Civil War Print of General Ulysses S. Grant
  18. Terracotta Army
  19. Roof of the World - USGS Earth as Art
  20. Neanderthals hunt a cave bear
  21. Harriet Tubman, 1911
  22. Map of Palestine, Palestina Antiqua
  23. Peter and the Mermaids
  24. Marie Curie
  25. Alice and the White Knight, from 'Alice in Wonderland' by Lewis Carroll
  26. Blood clot, SEM
  27. Male skeleton, computer artwork.
  28. Book Cover of 'Jeanne d'Arc'
  29. World War I, Map, c1918
  30. Ida B. Wells
  31. Tyrannosaurus
  32. old-fashioned drawing compass
  33. Deinonychus
  34. Sigmund Freud
  35. Dice on math game
  36. Gold Leaf Agate
  37. Antique French Grape Press
  38. Lovecraft
  39. Anterior view of human skull, with labels
  40. Anterior neck and facial muscles of the human head (with labels)
  41. Alaska - USGS State Mosaic
  42. Solar System - Brown
  43. Barreal Blanco - USGS Earth as Art
  44. Portrait of General William Tecumseh Sherman (1820-91)
  45. Map Of France, C.1900
  46. Yellowstone
  47. Be Creative
  48. Row of pencils on table