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  1. Rorschach Inkblot Test
  2. Standard electrical circuit symbols
  3. Sherlock Holmes and Dr. Watson
  4. Spine anatomy
  5. Spine anatomy
  6. Development of the English alphabet
  7. Butterflies, artwork
  8. Rhazes, Islamic scholar
  9. Durer's Rhinoceros, 1515
  10. Hummingbirds, historical artwork
  11. Flame emission spectra of alkali metals
  12. Foot anatomy by Leonardo da Vinci
  13. Newton's optics
  14. Muscles of the side and back
  15. Table comparing ancient scripts
  16. Bees
  17. Newspaper printing press
  18. Egyptian and Assyrian counting systems
  19. Nicolaus Copernicus, Polish astronomer
  20. Early electrical equipment
  21. 16th century map of Venice
  22. 19th century chart of ocean currents
  23. Body musculature
  24. Young hare, by Durer
  25. Olive trees, Puglia, Italy, Europe
  26. Body musculature
  27. Shelduck, historical artwork
  28. Native American census roll, artwork
  29. Francesco Sforza, military leader
  30. Foot bones
  31. 19th Century electrical equipment
  32. Egyptian creation myth
  33. Sandpiper, historical artwork
  34. Computer hard disk assembly
  35. Homeric cosmogony
  36. Durer's Celestial Globe, 1515
  37. Redshank, historical artwork
  38. Torso bones
  39. Anglo-Saxon 10th century world map
  40. Table from Becher's 'Opuscula chymica'
  41. Facial nerves
  42. Brain anatomy, 16th century diagram
  43. Tawny owl, historical artwork
  44. Golden eagle, historical artwork
  45. Features of fingerprints
  46. Legend of Archimedes and the lever
  47. Early petrol locomotives
  48. Galileo using a telescope