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  1. The cervical vertebrae
  2. The Optimist - USGS Earth as Art
  3. Molecule Testosterone
  4. Teachers II Yellow
  5. Solar System - Blue II
  6. Internal view of the human heart
  7. Oregon - USGS State Mosaic
  8. Cingulate gyrus in the brain, artwork
  9. Wright Flyer sculpture at Wright Brothers National Memorial, North Carolina
  10. Molecule Estrogene
  11. Boxing
  12. Male skeleton, computer artwork.
  13. Vintage Civil War Print of General Ulysses S. Grant
  14. Illustration of strip of land known as the 'fertile crescent'
  15. San Luis, Argentina - USGS Earth as Art
  16. Solar System (Minimal)
  17. Rocky Mountains - USGS Earth as Art
  18. Wyoming - USGS State Mosaic
  19. Presidential portrait of Jimmy Carter
  20. Roof of the World - USGS Earth as Art
  21. Terracotta Army
  22. Neanderthals hunt a cave bear
  23. Mt. Etna - USGS Earth as Art
  24. Map of Palestine, Palestina Antiqua
  25. Antique French Grape Press
  26. Alice and the White Knight, from 'Alice in Wonderland' by Lewis Carroll
  27. Peter and the Mermaids
  28. Deinonychus
  29. Blood clot, SEM
  30. Ida B. Wells
  31. Book Cover of 'Jeanne d'Arc'
  32. old-fashioned drawing compass
  33. Conceptual image of platelet, red blood cell and white blood cell
  34. Sigmund Freud
  35. Tyrannosaurus
  36. William Harvey
  37. Anterior neck and facial muscles of the human head (with labels)
  38. Dice on math game
  39. Anterior view of human skull, with labels
  40. General George Patton during a ticker tape parade
  41. Portrait of General William Tecumseh Sherman (1820-91)
  42. Barreal Blanco - USGS Earth as Art
  43. Knights of the Round Table
  44. Little Boy Blue, from Old Mother Goose's Rhymes and Tales
  45. Circulatory system and brain, artwork
  46. Marie Curie
  47. Map Of France, C.1900
  48. Be Creative