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  1. Mrs, Jeanne Martin Cisse
  2. Conceptual image of chromosome
  3. Definition of anthropology
  4. Mission Santa Ynez or Ines, Solvang, California
  5. Brachiosaurus
  6. 'London', plate 38 from 'Songs of Experience', 1794
  7. Joan of Arc hears heavenly voices in the Forest
  8. That Dam Cloud
  9. Human bones
  10. Ida B. Wells, 1891
  11. The Man and the Alembic
  12. Conceptual image of DNA
  13. Microscopic view of plant tissues
  14. Ceratosaurus
  15. Shooting An Oil Well
  16. Conceptual image of DNA
  17. Comet of 1811, 19th century artwork
  18. Conceptual image of human lungs and rib cage
  19. Joachim Murat Reviews a Company of Black Soldiers in Koenigsberg
  20. Old Mother Hubbard, from Old Mother Goose's Rhymes and Tales
  21. Humpty Dumpty
  22. Conceptual image of influenza causing flu
  23. Portrait of Anton Chekhov (1860-1904) 1902
  24. The muscles of the hand
  25. Soybeans, early growth, Minnesota
  26. Portrait of Henry Knox (1759-1806)
  27. Human skeleton
  28. California - USGS State Mosaic
  29. Vintage American history print of a younger President Theodore Roosevelt
  30. Waziristan Hills - USGS Earth as Art
  31. Apatosaurus
  32. Women working in a munitions factory in 1915
  33. Battle of Waterloo, June 18, 1815, 3rd Grenadier of Guard commanded by Cambronne
  34. Mankind in the Making
  35. 1980's UK Womans Weekly Magazine Cover
  36. ABCs
  37. Euoplocephalus
  38. Human Skin
  39. Body Plans of Extinct Reptiles
  40. Abstract Alphabet
  41. Science classroom
  42. School Days
  43. Civil War print of Abraham Lincoln riding on horseback as a crowd cheers
  44. Abraham Lincoln
  45. Lifecycle of a Frog
  46. Artist's concept depicting the evolution of a lobe-finned fish to an amphibian
  47. Chalkboard with greetings written in English, French and German
  48. The arteries of the brain