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  1. Portrait of Henry Knox (1759-1806)
  2. Vintage American history print of a younger President Theodore Roosevelt
  3. Waziristan Hills - USGS Earth as Art
  4. California - USGS State Mosaic
  5. Apatosaurus
  6. Mankind in the Making
  7. 1980's UK Womans Weekly Magazine Cover
  8. ABCs
  9. Euoplocephalus
  10. School Days
  11. Science classroom
  12. Human Skin
  13. Lifecycle of a Frog
  14. Chalkboard with greetings written in English, French and German
  15. Artist's concept depicting the evolution of a lobe-finned fish to an amphibian
  16. A Black Soldier In the Union Army Leading A Supply Train, 1864
  17. Lady Bell Plant Pollen
  18. Wanted poster for Jesse James
  19. Oklahoma - USGS State Mosaic
  20. Detached blood clot, artwork
  21. Human nervous system, computer artwork.
  22. Portrait of Henry Clay (1777-1852)
  23. To the Jews, plate 27 from Jerusalem, 1804-20
  24. Photo of industrialist Andrew Carnegie
  25. Vintage World War I propaganda poster
  26. Bellflower Petal
  27. Man using laptop computer
  28. George Washington Carver
  29. North Carolina - USGS State Mosaic
  30. Murat Prevents Retirement Friant's Division at Battle of Borodino
  31. The bones of the foot
  32. The cervical vertebrae
  33. Teacher Truths black I-Successful Students
  34. Chinese compass, 18th century manuscript
  35. Palmtop
  36. Conceptual image of DNA
  37. Blood vessels and kidneys, artwork
  38. Coelophysis
  39. Conceptual image of flagellate bacterium
  40. Coahuila, Mexico - USGS Earth as Art
  41. Conceptual image of plasmodium causing malaria
  42. Teachers III Blue
  43. STS-135 Mission
  44. Conceptual image of human tooth
  45. Washington - USGS State Mosaic
  46. The Rosetta Stone
  47. Brain surface anatomy, with labels
  48. Delaware - USGS State Mosaic