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  1. Von Karman Vortices - USGS Earth as Art
  2. Sohrab Facing the Tent of the Persian Army Leaders. Shahnameh. The Book of Kings. 16th c
  3. Earth Agate E
  4. Pi to 2198 decimal place
  5. Purple Watercolor Agate I
  6. Vintage Civil War print of President Abraham Lincoln and his cabinet
  7. Nikola Tesla With Machine
  8. Molecule Vanilin
  9. Desk Tools III
  10. Bullfrog
  11. Carburetor
  12. Molecule Water
  13. Portrait of Andrew Jackson
  14. Molecule THC
  15. American History print of President Washington and Lincoln
  16. Distance of Sun, Moon and Planets
  17. Surveyors Wanted to Explore Mars and its Moons
  18. Digestive system, artwork
  19. Women's Rights Parade, 1913
  20. Unfinished Portrait of Napoleon I formerly attributed to Jacques Louis David 1808
  21. Desert to Forest - USGS Earth as Art
  22. Modern Comanche, 1891
  23. Book
  24. States of the German Confederation
  25. Christmas Jasper
  26. Highlights from History: Ireland's 'Great Rebellion'
  27. Civil War print depicting the Union Army's capture of Fort Fisher
  28. The Heavens II
  29. The Two Rats, Fox, and Egg, La Fontaine's Fables
  30. Molecule Cinnamon
  31. Tesla
  32. John Adams, by Gilbert Stuart, c. 1800-15
  33. Human anatomy showing deep muscles in the neck and upper back
  34. Christian Loses His Burden At The Cross. From The Book The Pilgrim's Progress
  35. Conceptual image of DNA
  36. Chinese acupuncture model
  37. Young boy in school writing on chalkboard
  38. Sunflower - Botanical Illustration
  39. College Graduation Ceremony
  40. Bogda Mountains - USGS Earth as Art
  41. Vintage Civil War print of the Battle of Fredericksburg
  42. Listen to your Teacher
  43. Good Grades and Good Health Go Together - WPA Poster
  44. Blood clot, SEM
  45. Winston Churchill (1874-1965) in Naval Scene
  46. Relaxing feet.
  47. Civil War, Texas Rangers, 1861
  48. Proud to be an American I