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  1. Teacher Truths black I-Successful Students
  2. George Washington, by Gilbert Stuart, 1821
  3. A simplified Herzprung Russell Diagram showing how stars are classified
  4. Harriet Tubman II
  5. Solar System (Minimal)
  6. Little Boy Blue, from Old Mother Goose's Rhymes and Tales
  7. Knights of the Round Table
  8. Behemoth and Leviathan
  9. Man using laptop computer
  10. Revolutionary War Plan
  11. Puerto Rico - USGS State Mosaic
  12. Portrait of naturalist and geologist Charles Darwin
  13. The Swedish Warship Vasa
  14. Portrait of Booker T. Washington sitting in a chair
  15. Scene From Little Red Riding Hood By Charles Perrault, 1880
  16. North Carolina - USGS State Mosaic
  17. The Titanic's propeller in the Thompson Graving Dock of Harland
  18. Development of Arabic numerals
  19. Global map of Saturns moon Dione
  20. The Making of America: 'Hear Me, My Chiefs'
  21. Heather - Botanical Illustration
  22. Normal spine, X-ray
  23. Vintage Parchment Wall Phone Patent Poster
  24. San Luis, Argentina - USGS Earth as Art
  25. Oscar Wilde, 1854 - 1900, Irish Poet And Playwright
  26. Rice Terraces, Longsheng Ping'an, Guangxi
  27. Conceptual image of DNA
  28. Signature Of Charles Dickens, 1812-1870. From The Book Bleak House
  29. Oregon. Close-up of Owyhee Picture Jasper stone
  30. The Discovery Of Nat Turner
  31. Australia, Northern Territory, Arnhem Land, Mt Borradaile, rock paintings
  32. Vintage Civil War Print of General Ulysses S. Grant
  33. Terracotta Warriors
  34. The musculoskeleton of the neck
  35. Detached blood clot, artwork
  36. United We Stand - Civil Rights
  37. Civil War, Texas Rangers, 1861
  38. The Rosetta Stone
  39. Alexander Mackenzie (1764-1820)
  40. World War I, Map, c1918
  41. Toad of Toad Hall
  42. Barreal Blanco - USGS Earth as Art
  43. Vintage Parchment Edison Light Bulb Poster
  44. Mushroom Chart III
  45. Carte De Visite Of Edmonia Lewis, 1870
  46. American History print of President George Washington and his family
  47. The Rape of Europa
  48. A Relative