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  1. Teacher Truths VII-Rewarding
  2. Vintage Civil War poster of the Battle of Missionary Ridge
  3. Vintage World War I poster of an ambulance being pulled by Pegasus
  4. Puerto Rico - USGS State Mosaic
  5. Back to School
  6. The Flying Dutchman And Voltigeur Running The Great Match At York Racecourse
  7. The human body with superimposed colored plates by Julien Bougle
  8. The Dancing Academy. Illustration for Sketches by Boz by Charles Dickens
  9. Vintage World War II poster featuring a fedora and an Army helmet
  10. Mineralogie I
  11. First Moon Men, Conceptual Art
  12. The Discovery Of Nat Turner
  13. Cross section biomedical illustration of pulp and root abscess in molar
  14. Timberman
  15. Virginia - USGS State Mosaic
  16. Manners and Lessons, from 'Through the Looking Glass' by Lewis Carroll
  17. Nebraska - USGS State Mosaic
  18. Abacus.
  19. A herd of Brachiosaurus travel near a canyon mountain
  20. The Town Mouse and the Country Mouse, La Fontaine's Fables
  21. Girl looking over stack of books
  22. Smilodon sabertooth mother and her cubs
  23. Carte De Visite Of Edmonia Lewis, 1870
  24. Fountain Pen
  25. Molecule Testosterone
  26. Nikola Tesla
  27. Lake Disappointment - USGS Earth as Art
  28. The Dardzha Monster - USGS Earth as Art
  29. The Swedish Warship Vasa
  30. The American University, Beirut, Lebanon
  31. Dinosaur Skeleton, 1921
  32. Malaspina Glacier - USGS Earth as Art
  33. Algerian Sahara - USGS Earth as Art
  34. On The Dark Road. Illustration From The Charles Dickens Novel Dombey And Son
  35. Vintage World War II poster featuring a fighter plane and a ship patrolling the sea
  36. Human Skeleton: Lateral view in Crouching Posture
  37. Detail of hieroglyphic writing. Museum of Fine Arts. Budapest. Hungary
  38. Arthritis of the neck, X-ray
  39. Anatomy of male muscular system, front view
  40. Karman Vortices - USGS Earth as Art
  41. Santa Fe, NM, Wagon Train
  42. Illinois - USGS State Mosaic
  43. Richelieu celebrating Mass at the Camp of La Rochelle before the Army
  44. A Scientist In A Lab
  45. Running On The Wind
  46. Colorado - USGS State Mosaic
  47. Giant Panda
  48. Title Page Illustration From The Novel Dombey And Son