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  1. Toad of Toad Hall
  2. The Rosetta Stone
  3. Pinned broken leg, X-ray
  4. Beyond Our Solar System V
  5. The Discovery Of Nat Turner
  6. American History print of President George Washington and his family
  7. Detached blood clot, artwork
  8. Colorized scanning electron micrograph of filamentous Ebola virus particles
  9. Meandering Mississippi - USGS Earth as Art
  10. Portrait of Patrick Henry (1736-99)
  11. The Sun I
  12. Map of Armenia, Colchis, Iberia and Albania
  13. United States Fun Facts
  14. The sun sets behind a row of spinning windmills or wind turbines
  15. Anterior neck and facial muscles of the human head (with labels)
  16. Printing Press
  17. Solar System - Brown
  18. Upper body bones, computer artwork.
  19. Abraham Lincoln
  20. Boxing
  21. The Sun
  22. Wire Frame Render of a Clock Mechanism, Close-up
  23. Titan II
  24. Neanderthals hunt a cave bear
  25. Internal view of the human heart
  26. The musculoskeletal system
  27. Abraham Lincoln Portrait, 1863
  28. Mushroom Chart III
  29. The Sun III
  30. General George Patton during a ticker tape parade
  31. Alaska - USGS State Mosaic
  32. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  33. Lumbar vertebra
  34. Officers of 4th New Jersey Infantry, American Civil War
  35. First Letter Carried By Pony Express
  36. The bones of the neck
  37. Houdini Diver Suit
  38. The Syrian Desert - USGS Earth as Art
  39. Cross section biomedical illustration of pulp and root abscess in molar
  40. Every Child Deserves A Great School
  41. Apollo 13
  42. Mark Twain , 1901
  43. Cartilage cells, TEM
  44. Spruce Goose - Hughes H-4 Hercules Blueprint: Retro Travel Poster
  45. Spirit And Opportunity, Mars Exploration Rover Project
  46. Presidential portrait of Jimmy Carter
  47. Bomjamin
  48. Skeleton Chart