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  1. Capitol From the Botanical Gardens
  2. Molecule Cinnamon
  3. The Two Rats, Fox, and Egg, La Fontaine's Fables
  4. Normal hip, X-ray
  5. The Lion, Jupiter and the Elephant, illustration from Aesop's Fables
  6. Portrait of Andrew Jackson
  7. Distance of Sun, Moon and Planets
  8. Bright Periodic Table - White, Classic Text
  9. Photomicroscopic close up of a snowflake crystal
  10. Teddy
  11. Relaxing feet.
  12. Agate Geode I
  13. Muhammad Ali on the shore of the Congo River, Kinshasa, Zaire
  14. Stamp out Syphilis and Gonorrhea - WPA Poster
  15. Microscopic view of bacteria
  16. Mohawk Village, 1780
  17. Illustration From Grimm's Fairy Tale, The Three Little Men In The Wood
  18. Ball Play Of the Choctaw, 1840s
  19. Alice in the Looking Glass House, from 'Through the Looking Glass' by Lewis Carroll
  20. George And Martha Washington At Presidential Reception
  21. Bullfrog
  22. Sierra de Velasco - USGS Earth as Art
  23. Alberta, Reserve, c1890
  24. Good Grades and Good Health Go Together - WPA Poster
  25. Highlights from History: Ireland's 'Great Rebellion'
  26. Normal shoulder, X-ray
  27. States of the German Confederation
  28. Solar System II
  29. How Seeds Travel
  30. Conceptual image of neuron
  31. Artist's Rendering Of A Solar System
  32. Civil War print depicting the Union Army's capture of Fort Fisher
  33. Von Karman Vortices - USGS Earth as Art
  34. The Outward Bound, 1912
  35. Vintage Civil War print of the Battle of Fredericksburg
  36. Pennsylvania, Gettysburg, Battle of Gettysburg, tree and battlefield monument, dawn
  37. Close Ups Of Fortification On Crazy Lace Agate
  38. The Summit Of Little Round Top During the Battle Of Gettysburg, 1863
  39. Bouncing ball
  40. Base of human skull, inferior view, with labels
  41. Andes - USGS Earth as Art
  42. Nikola Tesla With An Early Tesla Coil
  43. Abraham Lincoln, 1809
  44. Pipestone Quarry On the Coteau Des Prairies, 1836
  45. Portrait of Patrick Henry (1736-99)
  46. California, Palm Springs. Windmill Farm along North Indian Canyon Drive
  47. John Adams, by Gilbert Stuart, c. 1800-15
  48. Poppy Jasper