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  1. Abstract line pattern.
  2. Features of fingerprints
  3. Kentucky - USGS State Mosaic
  4. Heart with coronary vessels
  5. Eye anatomy,artwork
  6. Cannabis plant, SEM
  7. Metal hydroxides
  8. Dandelion plant stem, light micrograph
  9. DNA
  10. Karman Vortices - USGS Earth as Art
  11. Teeth
  12. Vitruvian Skeleton
  13. If I Were A Cloud
  14. Lena Delta - USGS Earth as Art
  15. Interference pattern of oil on water
  16. Nervous system, artwork
  17. Historical celestial system
  18. Motor neurone nerve cell and synapses
  19. The bones of the pelvis
  20. Nerve cell, artwork
  21. Healing the world, conceptual artwork
  22. Akpatok Island - USGS Earth as Art
  23. Wingate Pass Agate, Ca
  24. Mathian steam boiler
  25. Eye anatomy, 1844 artwork
  26. Earth
  27. Molecular model
  28. Pictorial plaque on Pioneer 10 and 11
  29. View of assorted dental equipment
  30. Microscopic view of the common cold virus
  31. Aurora observations, 1839
  32. Arthritis of the neck, X-ray
  33. Microscopic view of bacteria
  34. 1832 Darwin's ship HMS Beagle plan
  35. Virus particles, conceptual artwork
  36. Vintage Parchment Ophthalmoscope Patent Poster
  37. Watercolor Agate I
  38. Cross Section Of Plate Boundaries Formed By Ridges, Faults, And Subduction
  39. Human brain anatomy, artwork
  40. Early American steam locomotive
  41. Cold War medical training, 1958
  42. Andes - USGS Earth as Art
  43. Pond life
  44. Johnniac computer
  45. Durer's Celestial Globe, 1515
  46. Constellation - Orion
  47. ATP Synthase Enzyme Complex, Illustration
  48. Fountain Pen