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