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  1. Mushroom Chart II
  2. Scanning electron micrograph of Staphylococcus and a dead human neutrophil
  3. Manuscript Of Fifteenth Amendment To The Constitution
  4. Portrait of naturalist and geologist Charles Darwin
  5. Modern Geode IV
  6. Sailors on deck of USS Mendota gun boat during American Civil War
  7. Moses and the Burning Bush
  8. First Letter Carried By Pony Express
  9. As Pandora Raised The Lid The Cottage Grew Very Dark. Illustration
  10. William II, Prince of Orange, and his Bride, Mary Stuart, 1641
  11. Signature Of Charles Dickens, 1812-1870. From The Book Bleak House
  12. One, Two, Buckle my Shoe, from Old Mother Goose's Rhymes and Tales
  13. Death's Door, illustration from 'The Grave, A Poem'
  14. The Transfiguration
  15. Get Ahead! Adult Education Classes: For Adults at No Charge - WPA Poster
  16. Pile of paperback books on desk in school library.
  17. Dragon Lake - USGS Earth as Art
  18. Military camp with soldiers in street during the American Civil War
  19. Mae Jemison (1956- )
  20. General Robert E. Lee at the Battle of Fredericksburg, 13th December 1862
  21. Lady Bell Plant Pollen
  22. Vintage American History print of Colonel Theodore Roosevelt
  23. Yutyrannus huali is a feathered tyrannosauroid from the Early Cretacous of China
  24. The Discovery Of Nat Turner
  25. Dinosaur Skeleton, 1921
  26. Human Skeleton: Lateral view in Crouching Posture
  27. Richelieu celebrating Mass at the Camp of La Rochelle before the Army
  28. Wright Flyer sculpture at Wright Brothers National Memorial, North Carolina
  29. The Battle of Grandson, March 2, 1476 Between Swiss and Burgundy
  30. Work the Night Shift on Martian Moon Phobos
  31. Harold Lloyd
  32. Robinson Crusoe and his pets. From Adventures of Robinson Crusoe, published 1908
  33. 1900's UK Portrait Book Plate
  34. Tides as the Earth Turns
  35. Molecule Glucose
  36. 1151 Highlanders Resting at the Front, 1918
  37. The musculoskeletal system
  38. Star Collector III
  39. Terracotta Warriors
  40. Toad of Toad Hall
  41. Wire Frame Render of a Clock Mechanism
  42. Pencil Nub and Equation
  43. David Copperfield. Illustration for the Charles Dickens novel David Copperfield
  44. Oregon. Close-up of Owyhee Picture Jasper stone
  45. Wright Flyer sculpture at Wright Brothers National Memorial, North Carolina
  46. Solar System (Minimal)
  47. Boxing
  48. Vintage Civil War Print of General Ulysses S. Grant