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