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  1. Oregon - USGS State Mosaic
  2. Rocky Mountains - USGS Earth as Art
  3. Molecule Estrogene
  4. Magnetic field
  5. Right lung - medial view. respiratory system
  6. Dragonflies, 17th century artwork
  7. Computer enhanced image of a snow flake
  8. Instruments for removing bladder stones
  9. Internal view of the human heart
  10. Soap bubbles
  11. Leptin molecule
  12. Chemistry, graduated beakers
  13. Bromine
  14. Roof of the World - USGS Earth as Art
  15. Gold Leaf Agate
  16. Red blood cells, SEM
  17. pH measurement of oxide solutions
  18. Male skeleton, computer artwork.
  19. Escherichia coli bacteria, SEM
  20. Fossil remains and skeletal reconstruction of Tianyulong confuciusi
  21. Triceratops
  22. Laboratory glassware
  23. Oak sapling (Quercus robur)
  24. Blood clot, SEM
  25. Twilight hues in the sky, Great Yarmouth, Norfolk, England
  26. Halogens
  27. Phases of the Moon
  28. Laboratory flask and circuit board
  29. Human Skull
  30. Marie Curie
  31. Abstract line pattern.
  32. Medical treatment, conceptual image
  33. Tyrannosaurus
  34. Chemistry apparatus
  35. Early electric train
  36. Albert Einstein, physicist
  37. Abstract line pattern.
  38. Pouring liquid into beaker
  39. Quark structure of silicon atom nucleus
  40. Pharmacology lab work
  41. Cell
  42. Female muscles, artwork
  43. Human nervous system from behind, artwork
  44. Arterial supply and venous drainage of the organs.
  45. Tuberculosis bacteria, artwork
  46. Diamond structure
  47. Kepler Mission rocket launch
  48. Antique French Grape Press