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  1. Alabama - USGS State Mosaic
  2. Cross section image of human head
  3. Venus II
  4. Dice on math game
  5. Antique French Grape Press
  6. The Sun IV
  7. Blood clot, SEM
  8. Wright Flyer sculpture at Wright Brothers National Memorial, North Carolina
  9. Row of pencils on table
  10. Science classroom
  11. Close Ups Of Fortification On Crazy Lace Agate
  12. Canada, Quebec. Honey Economusee. Beehive
  13. Desert Patterns - USGS Earth as Art
  14. To Polish The Sun
  15. Pipes at Nesjavellir Geothermal Power Plant, Iceland
  16. Nebraska - USGS State Mosaic
  17. Long Island Railroad Communication Lines
  18. Globe And Books
  19. Washington - USGS State Mosaic
  20. Roof of the World - USGS Earth as Art
  21. Martin Luther King, Jr. (1929-1968)
  22. Coahuila, Mexico - USGS Earth as Art
  23. Outback Abstract
  24. California - USGS State Mosaic
  25. Generator and Fan Belt in a Car Engine
  26. Deforestation
  27. Hampton Institute, 1899
  28. Relief depiction of Ramses II, Temple of Luxor, Egypt
  29. Harriet Tubman, 1911
  30. Oregon, Owyhee River Valley. Close-up of Morrisonite Jasper
  31. Soybeans, early growth, Minnesota
  32. Rib cage of human skeleton
  33. Oregon - USGS State Mosaic
  34. Variety Of Flasks
  35. President John F. Kennedy signing the Equal Pay Act
  36. Byrd Glacier - USGS Earth as Art
  37. Earth III
  38. Pluto II
  39. Native Peruvian Dancer And Dress
  40. The bones of the lower back
  41. Artillery drill in fort during the American Civil War
  42. Terracotta Army
  43. Ratcliffe Power Station
  44. The bones of the foot
  45. Cardiovascular scan
  46. Dinosaur Skeleton, 1921
  47. Lake Disappointment - USGS Earth as Art
  48. Scanning electron micrograph of just-divided HeLa cells