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  1. The Capitol -East Front
  2. Four kinds of lamp: Edison, Maxim, Swan, and Werdermann
  3. Explorers Wanted on the Journey to Mars
  4. Bruce McCandless floating free from spacecraft in orbit, 1984
  5. Hudson Bay Trading Post On Flathead Indian Reservation, Montana Territory, c1860
  6. Anterior view of human skeletal system, with labels
  7. Development of the English alphabet
  8. Chalkboard Periodic Table
  9. Apache On Horseback, c1903
  10. Interior of the Library, Trinity College, Dublin, Eire (Republic of Ireland)
  11. Oilfield At Spindletop
  12. World War II: Headline, 1941
  13. Coral Reef
  14. Grey Agate E
  15. The Hare Afraid by His Ears, La Fontaine's Fables
  16. Love to Read
  17. Einstein
  18. The Tea Party
  19. Obama: Change
  20. Multi-Life
  21. Eye
  22. Timeline of Animals
  23. Deschutes Jasper, Oregon
  24. Abraham Lincoln and Stephen A. Douglas debating at Charleston, Illinois
  25. Vintage Civil War print of the Battle of Cold Harbor
  26. Signature of George Washington
  27. Diesel Motor
  28. John Adams, by Gilbert Stuart, c. 1800-15
  29. Jet Engine
  30. Martin Luther King, Jr
  31. Herb Chart
  32. Library bookshelves
  33. Vintage World War II poster featuring a male lion
  34. 'The Tyger', Plate 36 From 'Songs Of Innocence And Of Experience'
  35. Calculator
  36. Moon Chart II
  37. Typical Animal Cell and Plant Cell
  38. American Jazz Saxophone Player John Coltrane, 1957
  39. The Presidents Educational Poster, 2013
  40. Bolivia, Potosi, Amethyst in a Bolivian museum
  41. World War I, Map, 1918
  42. Gas Station, Wild West Painting Series
  43. Civil War print showing the Naval Battle of the Monitor and The Merrimack
  44. Civil War print depicting the Union Army's capture of Fort Fisher
  45. Agate Studies II
  46. Grey Agate B
  47. Civil War print of General Lee surrendering his Confederate forces to General Grant
  48. Genius Handlettering