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  1. Row of pencils on table
  2. Vintage Parchment Otoscope Patent Print
  3. Human Skeleton: Lateral view in Crouching Posture
  4. Science classroom
  5. Circulatory system and brain, artwork
  6. Alfred (849-899) disguised as a minstrel in the camp of King Guthrum
  7. Mission Santa Ynez or Ines, Solvang, California
  8. Close Ups Of Fortification On Crazy Lace Agate
  9. Circulatory system and brain, artwork
  10. Classical Montage
  11. The cervical vertebrae
  12. Canada, Quebec. Honey Economusee. Beehive
  13. Desert Patterns - USGS Earth as Art
  14. The Dream
  15. Pipes at Nesjavellir Geothermal Power Plant, Iceland
  16. To Polish The Sun
  17. Nebraska - USGS State Mosaic
  18. Cross section biomedical illustrationBiomedical illustration of dental filling
  19. Portrait of Henry Knox (1759-1806)
  20. Long Island Railroad Communication Lines
  21. Practical Mechanics, September 1956
  22. Male skeleton, computer artwork.
  23. Bright Periodic Table - Black, Classic Text
  24. Practical Wireless, May 1957
  25. Work the Night Shift on Martian Moon Phobos
  26. Globe And Books
  27. License Plate Periodic Table
  28. Bright Periodic Table - Navy, Classic Text
  29. Bomjamin II
  30. Washington - USGS State Mosaic
  31. Cingulate gyrus in the brain, artwork
  32. Martin Luther King, Jr. (1929-1968)
  33. Portrait of Anton Chekhov (1860-1904) 1902
  34. Roof of the World - USGS Earth as Art
  35. The human body with superimposed colored plates by Julien Bougle
  36. The Tocsin Of Liberty Rung By The State House Bell, Philadelphia On July 4th 1776
  37. Coahuila, Mexico - USGS Earth as Art
  38. Thel's Motto, plate 2 from The Book of Thel, 1789
  39. California - USGS State Mosaic
  40. Illustration of strip of land known as the 'fertile crescent'
  41. Generator and Fan Belt in a Car Engine
  42. Deforestation
  43. Outback Abstract
  44. Teacher Truths VII-Rewarding
  45. Hampton Institute, 1899
  46. Old Mother Hubbard, from Old Mother Goose's Rhymes and Tales
  47. Harriet Tubman, 1911
  48. Deinonychus