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  1. The Historic Meeting Of The Union High Command During The American Civil War
  2. Molecule Ethanol
  3. Tlazolteotl and Chalchiuhtlicue, Aztec Goddesses of Love and Water. 15th c. Codex Cospi
  4. Arthritis of the neck, X-ray
  5. External auditory canal of human ear (with labels)
  6. Chrysocolla
  7. John Brown on 30 August 1856 intercepting a body of pro-slavery men
  8. Blackfoot Native American
  9. Soap bubbles on a dodecahedral frame
  10. The Nina, Pinta, And Santa Maria
  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. Oil Pump Jacks On Canadian Prairie At Dusk, Carlyle, Saskatchewan, Canada
  19. Fascimile of a letter from Vincent Van Gogh to Emile Bernard on the 18th March 1888
  20. The Fox and the Grapes, Selected Fontaine's Fables
  21. The Fir-Tree and the Bramble, illustration from Aesop's Fables
  22. The Fox and the Rooster
  23. Signal Hill Oil Derricks
  24. Mohawk Village, 1780
  25. George Washington, by Gilbert Stuart (Vaughan-Sinclair portrait), 1795
  26. Microscope
  27. Inquiry in the Loss of the Titanic: Cross sections of the ship
  28. How the Titanic Survivors Were Picked Up by the Carpathia
  29. Hand doing math homework
  30. Bogda Mountains - USGS Earth as Art
  31. Armillary sphere
  32. Petrarch. Italian poet. The in Triumph of Love (15th c.) National Library, Madrid
  33. Conceptual image of neuron
  34. William Shakespeare at the Age 34, By Louis Coblitz, c.1830-60, German, oil on canvas
  35. Vintage Civil War print of Abraham Lincoln riding on horseback as a crowd cheers
  36. Alice in the Looking Glass House, from 'Through the Looking Glass' by Lewis Carroll
  37. Hudson River, Military Map
  38. The Underground Railroad Aids With A Runaway Slave
  39. Earth Agate A
  40. World War II painting of Winston Churchill wearing his RAF uniform
  41. Flying Machine, drawing by Leonardo da Vinci. Ca. 1488
  42. The Lion, Jupiter and the Elephant, illustration from Aesop's Fables
  43. War of 1812 print at the Battle of New Orleans
  44. Hebrew Bible, 1299. Ark of the Covenant open showing Tablets of the Law
  45. American War of Independence
  46. Pietersite
  47. Portrait Of Harriet Tubman, 1868-69
  48. Antique Stock Certificate IV