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  1. Alluvial Fan - USGS Earth as Art
  2. Multiwell sample tray
  3. Arabian Corals, Historical Artwork, 1876
  4. Cut-away artwork of a windmill for grinding corn
  5. Studio shot of hand holding syringe
  6. Period 3 elements
  7. Protozoa, historical artwork
  8. 18th Century astronomical diagrams
  9. LM of four-cell embryo
  10. Volvox colony, light micrograph
  11. Volcanic ash layers in rock
  12. Helicobacter pylori bacterium, TEM
  13. Water clock, design from 1646
  14. Meighen Island - USGS Earth as Art
  15. Growth hormone receptor, molecular model
  16. Bromine
  17. Back deformities
  18. Heart and lung anatomy, 17th century
  19. Germinating red chard seed, SEM
  20. Rhino skull Everard Home
  21. Stethoscope
  22. Chemistry, graduated beakers
  23. Earth Pyramids, Italy
  24. Blood testing
  25. Pediastrum alga, SEM
  26. Conceptual image of the coronavirus
  27. DNA sequences
  28. Conrad Gessner's nature collection
  29. Salmonella bacteria, SEM
  30. Interior of human blood vessel showing a thrombus
  31. Brain blood vessels
  32. Araticum ape, annona montana, artwork
  33. Gut bacterium, TEM
  34. Artistic representation of the immune system's reaction to bacteria invading the tissues
  35. Transition metal compound solutions
  36. Pollinated flower pistil, SEM
  37. Human skeleton anatomy, artwork
  38. Passion flower pollen grain, SEM
  39. Flower pistil
  40. Halogens
  41. Microscopic view of white blood cells inside blood vessel
  42. Coloured SEM of human embryo at the 2-cell stage
  43. Surgeon
  44. Chest Anatomy, 19th Century Illustration
  45. Brain inflammation, TEM
  46. Broadclub cuttlefish
  47. Garden City, Kansas - USGS Earth as Art
  48. Blood, light micrograph