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  1. Ocean Jasper
  2. Distance of Sun, Moon and Planets
  3. Alberta, Reserve, c1890
  4. Good Grades and Good Health Go Together - WPA Poster
  5. Civil War, Texas Rangers, 1861
  6. Bouncing ball
  7. Normal shoulder, X-ray
  8. Spilled Paint - USGS Earth as Art
  9. Artist's Rendering Of A Solar System
  10. The bones of the pelvis
  11. Abraham Lincoln, 1809
  12. Photomicroscopic close up of a snowflake crystal
  13. Wingate Pass Agate, Ca
  14. Meandering Mississippi - USGS Earth as Art
  15. Base of human skull, inferior view, with labels
  16. 'Rheumatoid arthritis of the hands, X-ray
  17. Scrooge Objects to Christmas. Illustration for the novella A Christmas Carol
  18. Florence Nightingale (1820-1910) illustration from World Noted Women
  19. Signature of John Hancock
  20. Capitol From the Botanical Gardens
  21. Microscopic view of bacteria
  22. Molecule Cinnamon
  23. Bears
  24. Illustration By Arthur Rackham From Grimm's Fairy Tale, The Cunning Little Tailor
  25. Normal hip, X-ray
  26. Denver, Colorado, 1859
  27. Bright Periodic Table - White, Classic Text
  28. The sun sets behind a row of spinning windmills or wind turbines
  29. Dental X-ray
  30. Mathematical Elements IV
  31. Solar System II
  32. Portrait of Patrick Henry (1736-99)
  33. Faridun's Sons Marry the Three Daughters of Sero. Shahnameh. The Book of Kings
  34. Replica Of Eli Whitney's Cotton Gin
  35. Australia, Northern Territory, Arnhem Land, Mt Borradaile, rock paintings
  36. Winston Churchill (1874-1965) in Naval Scene
  37. Shame may be Fatal - WPA Poster
  38. Pennsylvania, Gettysburg, Battle of Gettysburg, tree and battlefield monument, dawn
  39. The Teacher
  40. Lena Delta - USGS Earth as Art
  41. A Pawnee Brave
  42. Arteries of the brain, 3D CT scan
  43. Mexican Revolution (1910-19). Train with wounded revolutionary fighters
  44. Mistletoe - Botanical Illustration
  45. School supplies
  46. Martin Luther King, Jr. (1929-1968)
  47. Vintage American History painting of Alexander Hamilton
  48. Pair of human hands on black background.