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  1. Vertebrates
  2. Illustration showing diverticulitis of the colon
  3. Yeast protein interaction map
  4. Brain anatomy
  5. Lady Bell Plant Pollen
  6. Invertebrates
  7. Polarised LM of crystals of caffeine
  8. Nerve demyelination, TEM
  9. Okavango Delta - USGS Earth as Art
  10. Spinal bones and ligaments
  11. Allosaurus
  12. The nerve supply of the upper body
  13. Conceptual image of platelets with red blood cells
  14. Acupuncture points
  15. Historical medicinal products
  16. Dandy Bones
  17. Circuits
  18. Phase separation
  19. Fingerprint, computer artwork
  20. Paper chromatograms of various dyes
  21. Water ripples
  22. Atomic structure
  23. Ganges River Delta - USGS Earth as Art
  24. Electromagnetic spectrum
  25. 5s electron orbital
  26. Internal brain anatomy, artwork
  27. Microbiology research
  28. Bones of the shoulder - anterior view. skeletal system
  29. Artwork of tooth showing periodontal disease
  30. Wernher von Braun, German rocket designer
  31. Pipes at Nesjavellir Geothermal Power Plant, Iceland
  32. Perpetual motion machine, 19th century
  33. Brachiosaurus
  34. Puerto Rico - USGS State Mosaic
  35. Brain and vision
  36. Native copper
  37. Nerve synapse
  38. The human body with superimposed colored plates by Julien Bougle
  39. The Earth's seasons
  40. Preparing sample vials
  41. Mineralogie I
  42. Cross section of human blood vessel showing atherosclerosis
  43. Computer memory chips
  44. Subatomic particles abstract
  45. Virginia - USGS State Mosaic
  46. Artwork of eye
  47. Tides as the Earth Turns
  48. Microscopic view of the common cold virus