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