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  1. Jurassic dinosaurs
  2. Arrow Schematic I
  3. Bright Egret Sketch I
  4. Human ear anatomy
  5. Texas jackrabbit, a subspecies of the black-tailed jackrabbit, or California hare
  6. Audubon: Ibis
  7. Pool Hall Antics III
  8. Endangered animals, conceptual image
  9. High Plains II
  10. Genetic code
  11. Dragon tail fractal
  12. Piranesi View of Rome V
  13. Flying Fox I
  14. Pheasant Varieties VII
  15. Bronchial tree and lungs, artwork
  16. 1951 space shuttle design
  17. Piping Plover
  18. View from West Point
  19. Mars map from 1881
  20. Pool Hall Antics V
  21. Tropical Botany Chart II
  22. The Fairy Spell
  23. Skateboard Elephant
  24. Cheshire Cat, 1865, Alice's Adventures in Wonderland
  25. Newspaper printing press
  26. Black & White Barn Study I
  27. Synapses, artwork
  28. Crocodile Sketch
  29. Artwork of the pterosaur, Pteranodon sp
  30. Black & White Barn Study II
  31. Swallow-tailed Kite
  32. High Plains I
  33. Mountain Sketch I
  34. Nicolaus Copernicus, Polish astronomer
  35. Robin, from The Farnley Book of Birds, c.1816
  36. Artwork showing Chicxulub impact crater, Yucatan
  37. Illustrations Magazine Plate
  38. Messerschmitt ME109 blueprint
  39. Boho Animal Indians
  40. Hopeful Spring
  41. Illustration showing the various parts that make up the sun
  42. Mallard Duck
  43. Artichokes, 2005
  44. Egyptian and Assyrian counting systems
  45. Sea Serpents
  46. Small-Mouthed Black Bass
  47. Country House Sketch
  48. 1832 Darwin's ship HMS Beagle plan