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  1. Male reproductive system, artwork
  2. Running On The Wind
  3. Global Circulation Patterns Diagram
  4. Himalayas - USGS Earth as Art
  5. Oklahoma - USGS State Mosaic
  6. Artwork of Caudipteryx sp., a bird-like dinosaur
  7. Stem cell, conceptual artwork
  8. Donati's Comet of 1858, artwork
  9. Forensic evidence
  10. Christmas Jasper
  11. Geography of the Heavens VI
  12. Bees - Vintage Educational Poster
  13. Diphtheria treatment, artwork
  14. Explorer 1
  15. Human spine, side view
  16. Scanning electron micrograph of an apoptotic HeLa cell
  17. Sets of fingerprints
  18. Medical zodiac, 15th century diagram
  19. Dentistry equipment
  20. Cretaceous dinosaurs
  21. Cross section of human blood vessel showing atherosclerosis
  22. Computer memory chips
  23. Eye anatomy, artwork
  24. Turquoise gemstone
  25. Astronomical Chart I
  26. Instruments for removing bladder stones
  27. Pollen grains, SEM
  28. Volcanoes - USGS Earth as Art
  29. Geranium (Pelargonium sp.) leaves
  30. Ice Stars - USGS Earth as Art
  31. Cold War medical training, 1958
  32. Anterior view and sagittal view of female urinary bladder
  33. Dragon Lake - USGS Earth as Art
  34. Vermont - USGS State Mosaic
  35. Sea salt, SEM
  36. Minnesota - USGS State Mosaic
  37. The analysis of sound frequencies by the basilar membrane
  38. Artwork of drug transmission to brain nerve cell
  39. Oregon, Owyhee. Close-up of picture jasper stone
  40. Blood types, conceptual image
  41. Standard electrical circuit symbols
  42. Calcium phosphate crystal, SEM
  43. Oregon. Close-up of Owyhee Picture Jasper stone
  44. Confidence of Alexander the Great into his physician Philippos, 1870
  45. Jurassic landscape, artwork
  46. Shame may be Fatal - WPA Poster
  47. The increase in hominid cranial capacity over time
  48. Human spine, artwork