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  1. CAT scan of human head
  2. Back of brain and spinal cord with head in dark cloud indicating depression
  3. Deforestation
  4. Agate Sample
  5. Artwork of a Tyrannosaurus rex dinosaur
  6. Male skeleton, computer artwork.
  7. Helicobacter pylori bacteria
  8. Art of gastro-oesophageal reflux in hiatus hernia
  9. Giant Panda
  10. Human body and digestive system, perspective view
  11. Cluster of DNA strands
  12. Gold core sample
  13. Earliest recording of a European meteorite
  14. Diagram of Copernican cosmology
  15. 19th Century Electric Telegraph Equipment
  16. Leaf midrib, SEM
  17. Blood groups
  18. Refraction of light by bi-concave lens
  19. Light bulb, historical artwork
  20. Triceratops
  21. Electric Streetlight, 1881
  22. Nerve fibre node, TEM
  23. Syringes
  24. The four humours, diagram
  25. Cranial nerves
  26. Conceptual image of influenza causing flu
  27. Arabic science timeline
  28. DNA analysis
  29. Okavango Delta - USGS Earth as Art
  30. 3<4
  31. Scanning electron micrograph of just-divided HeLa cells
  32. Microscopic view of diplococcus bacterium
  33. Cardiovascular scan
  34. Insect microscopy, 19th century
  35. Coiled leaf, SEM
  36. Soybeans, early growth, Minnesota
  37. Water wheel
  38. Frogs and their Eggs
  39. Losh and Stephenson's carriage
  40. Allosaurus
  41. Muscles of the hand and forearm
  42. Microbiology research
  43. Grass stem, SEM
  44. Great Auk (Pinguinus impennis), engraving
  45. Arm anatomy, historical artwork
  46. The cervical vertebrae
  47. Measuring electric voltage
  48. Megatherium, Extinct Ground Sloth