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  1. American War of Independence
  2. Mushroom Chart I light
  3. Arthritis of the knee, X-ray
  4. Stethoscope
  5. General Curtis LeMay and President Kennedy
  6. Colon blood vessels, light micrograph
  7. Spatial dimensions, conceptual artwork
  8. Flatboat, 19th Century
  9. Stacked Agate I
  10. Watercolor Agate I
  11. Indigo Agate C
  12. Stacked Agate II
  13. Agate Studies IV
  14. Earth Agate E
  15. The Rainforest
  16. Living Relatives of Dinoaurs
  17. Superior view of human brain with colored lobes and labels
  18. Titanic survivors in lifeboat
  19. Purple Watercolor Agate I
  20. Moss Agate
  21. Map Of the Battle Of Gettysburg, 1863
  22. Decorative Lintel from the ancient Mayan city of Yaxchilan, Chiapas, Mexico
  23. Sohrab Facing the Tent of the Persian Army Leaders. Shahnameh. The Book of Kings. 16th c
  24. Pi to 2198 decimal place
  25. In With the Horse Herd
  26. Bullfrog
  27. Molecule THC
  28. Molecule Chili
  29. Carburetor
  30. Nikola Tesla With Machine
  31. Balance
  32. Desert to Forest - USGS Earth as Art
  33. Edwin Hubble's Galaxy Classification System
  34. Modern Comanche, 1891
  35. The Heavens II
  36. RMS Titanic departing from Southanpton on her maiden voyage, April 5, 1912
  37. The Two Rats, Fox, and Egg, La Fontaine's Fables
  38. Young boy in school writing on chalkboard
  39. Muhammad Ali on the shore of the Congo River, Kinshasa, Zaire
  40. States of the German Confederation
  41. Washing Gold, Calaveras, California, 1853
  42. Chinese acupuncture model
  43. Listen to your Teacher
  44. Human anatomy showing deep muscles in the neck and upper back
  45. Distance of Sun, Moon and Planets
  46. Civil War, Texas Rangers, 1861
  47. Bouncing ball
  48. Artist's Rendering Of A Solar System