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  1. Pollen grains, SEM
  2. Rubber and gutta-percha molecular models
  3. Electrocardiogram of human heartbeat, close-up
  4. Oregon - USGS State Mosaic
  5. Oak sapling (Quercus robur)
  6. False colour SEM of moss leaves; green
  7. Laboratory glassware
  8. Pascal's calculator, 17th Century artwork
  9. Human Skull
  10. Marie Curie
  11. Laboratory flask and circuit board
  12. Blood clot, SEM
  13. Deinonychus
  14. Triceratops
  15. Abstract line pattern.
  16. Earth's celestial circles, 1708 artwork
  17. Chemistry, graduated beakers
  18. National Radio Astronomy Observatory, Green Bank, West Virginia
  19. Conceptual image of platelet, red blood cell and white blood cell
  20. Human male anatomy, artwork
  21. Albert Einstein, physicist
  22. Abstract line pattern.
  23. Tyrannosaurus
  24. Pouring liquid into beaker
  25. Pharmacology lab work
  26. pH measurement of oxide solutions
  27. Bromine
  28. Early electric train
  29. Human nervous system from behind, artwork
  30. Female muscles, artwork
  31. Cell
  32. Tuberculosis bacteria, artwork
  33. Early telephone, historical artwork
  34. Rosalind Franklin, British chemist
  35. Colon cancer cell, SEM
  36. Halogens
  37. Medical treatment, conceptual image
  38. Red blood cells, SEM
  39. Arterial supply and venous drainage of the organs.
  40. Light passing through prism
  41. Antique laudanum bottle
  42. Diamond structure
  43. Woolly mammoths
  44. Kepler Mission rocket launch
  45. DNA
  46. Anterior neck and facial muscles of the human head (with labels)
  47. Assorted capsules and gel-caps
  48. Anterior view of human skull, with labels