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