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  1. Buckminsterfullerene molecule
  2. Hughes' printing telegraph
  3. Molecular model of quartz
  4. Helicobacter pylori bacteria, SEM
  5. Rice Terraces, Longsheng Ping'an, Guangxi
  6. Human evolution, artwork
  7. Island Rebound - USGS Earth as Art
  8. Surgeon
  9. Heart anatomy, 19th Century illustration
  10. Insulin Crystals, Light Micrograph
  11. Nose, mouth and throat
  12. Yukon Delta - USGS Earth as Art
  13. The New Photography Or X Ray Photography From The Modern Cyclopedia Vol VI 1903
  14. Garden City, Kansas - USGS Earth as Art
  15. Mitosis
  16. Inner ear
  17. Cretaceous dinosaurs
  18. Bolivian Deforestation - USGS Earth as Art
  19. Nerve synapse, artwork
  20. Sun and its planets
  21. Woman interacting with multiple touch screens
  22. Chemicals and rock samples in Darwin's study
  23. Normal knee, X-ray
  24. Cretaceous tree ferns, artwork
  25. Tibetan cosmology, 18th century artwork
  26. Neck and facial nerves
  27. Water purity test
  28. Geography of the Heavens VI
  29. Edrengiyn Nuruu - USGS Earth as Art
  30. Cretaceous life, artwork
  31. Metal hydroxides
  32. Common Dolphins
  33. Microscopic view of virus
  34. Oregon. Close-up of Owyhee Picture Jasper stone
  35. Close-Up of Molecular Structure Diagrams
  36. Cobalt chloride crystals magnified 40x
  37. Superficial arteries and veins of face and scalp. cardiovascular system
  38. Structure of a human heart, artwork
  39. The musculoskeleton of the neck
  40. Microscopic view of poliovirus
  41. Radiologists examining an X-ray
  42. Boring a hole
  43. Conceptual image of human backbone
  44. Vegetation Profile Of A Scrubland
  45. Cholinesterase enzyme
  46. HIV reverse transcription enzyme
  47. Amethyst crystals
  48. Foot anatomy, 19th Century illustration