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  1. The Historic Meeting Of The Union High Command During The American Civil War
  2. Tlazolteotl and Chalchiuhtlicue, Aztec Goddesses of Love and Water. 15th c. Codex Cospi
  3. Arthritis of the neck, X-ray
  4. External auditory canal of human ear (with labels)
  5. Chrysocolla
  6. Molecule Ethanol
  7. John Brown on 30 August 1856 intercepting a body of pro-slavery men
  8. The Nina, Pinta, And Santa Maria
  9. Soap bubbles on a dodecahedral frame
  10. Microscope
  11. Egyptian and Assyrian counting systems
  12. Hey Diddle, Diddle, from Old Mother Goose's Rhymes and Tales
  13. Malachite
  14. Microphone
  15. Van Gogh from Space - USGS Earth as Art
  16. Earth
  17. Close Ups Of Fortification On Crazy Lace Agate
  18. The Fir-Tree and the Bramble, illustration from Aesop's Fables
  19. The Fox and the Grapes, Selected Fontaine's Fables
  20. Oil Pump Jacks On Canadian Prairie At Dusk, Carlyle, Saskatchewan, Canada
  21. Fascimile of a letter from Vincent Van Gogh to Emile Bernard on the 18th March 1888
  22. The Fox and the Rooster
  23. Blackfoot Native American
  24. Signal Hill Oil Derricks
  25. Mohawk Village, 1780
  26. George Washington, by Gilbert Stuart (Vaughan-Sinclair portrait), 1795
  27. Inquiry in the Loss of the Titanic: Cross sections of the ship
  28. War of 1812 print at the Battle of New Orleans
  29. Hand doing math homework
  30. How the Titanic Survivors Were Picked Up by the Carpathia
  31. Bogda Mountains - USGS Earth as Art
  32. Armillary sphere
  33. Petrarch. Italian poet. The in Triumph of Love (15th c.) National Library, Madrid
  34. Conceptual image of neuron
  35. William Shakespeare at the Age 34, By Louis Coblitz, c.1830-60, German, oil on canvas
  36. Hebrew Bible, 1299. Ark of the Covenant open showing Tablets of the Law
  37. Alice in the Looking Glass House, from 'Through the Looking Glass' by Lewis Carroll
  38. Hudson River, Military Map
  39. Vintage American Civil War print of The Battle of Cherbourg
  40. World War II painting of Winston Churchill wearing his RAF uniform
  41. The Underground Railroad Aids With A Runaway Slave
  42. Flying Machine, drawing by Leonardo da Vinci. Ca. 1488
  43. The Lion, Jupiter and the Elephant, illustration from Aesop's Fables
  44. American War of Independence
  45. Earth Agate A
  46. Pietersite
  47. Antique Stock Certificate IV
  48. Apache Men, c1906