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