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  1. Relief depiction of Ramses II, Temple of Luxor, Egypt
  2. Harriet Tubman, 1911
  3. Old Mother Hubbard, from Old Mother Goose's Rhymes and Tales
  4. Muscular man running
  5. Molecule Glucose
  6. Soybeans, early growth, Minnesota
  7. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  8. Lion and Gladiator
  9. Practical Television, March 1959
  10. Rib cage of human skeleton
  11. Anterior view and sagittal view of male urinary bladder
  12. Burning Of The New York Crystal Palace On Tuesday October 5th 1858
  13. Solar Surfing' To Take Science Even Closer To The Sun
  14. Cindarella With Pumpkin And Mice
  15. As Pandora Raised The Lid The Cottage Grew Very Dark. Illustration
  16. Beer, the Hop Plant, 1836
  17. Invertebrates
  18. Safety Pin Patent
  19. Albert Honey
  20. Vertebrates
  21. The cervical vertebrae
  22. Vintage World War II poster featuring a fedora and an Army helmet
  23. 'London', plate 38 from 'Songs of Experience', 1794
  24. Taming of the West: The Way of the Law
  25. Oregon - USGS State Mosaic
  26. Variety Of Flasks
  27. Conceptual image of DNA
  28. Byrd Glacier - USGS Earth as Art
  29. Male skeleton, computer artwork.
  30. The muscles of the hand
  31. President John F. Kennedy signing the Equal Pay Act
  32. ABCs
  33. Rocket, Be Greater Than Average
  34. Comparing Saurischian and Ornithischian Pelvises
  35. Earth III
  36. Pythagoras Maths Equation
  37. Pluto II
  38. Native Peruvian Dancer And Dress
  39. A herd of Brachiosaurus travel near a canyon mountain
  40. The bones of the lower back
  41. William Harvey
  42. The Crusades
  43. Triceratops
  44. Artillery drill in fort during the American Civil War
  45. Pachycephalosaurus
  46. School Days
  47. Giant Panda
  48. Terracotta Army