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  1. The Windmill Plane, Autogyro
  2. British Birds and Eggs IV
  3. Bon Voyage I
  4. Avian Study IV
  5. Bare-knuckle Boxers
  6. Grey phalarope, historical artwork
  7. Lungs
  8. Kumquat, 1996
  9. Breed Studies VI
  10. Foot bones and ligaments
  11. Breed Studies XII
  12. Shades of Coral IV
  13. 19th Century internal combustion engine
  14. Iris Sketch O'keefe Crop I
  15. Doodle Fish
  16. Composite image of the phases of the Moon
  17. Simple Songbird Sketches I
  18. Elizabethan England, from 'The Art of Perfume', 1912
  19. Cabeza De Vaca Expedition
  20. The trial for murder of Madeleine Smith
  21. Red Coral I
  22. Rough-legged Hawk
  23. Armillary sphere, 18th Century artwork
  24. Snap!
  25. Detail of 16th century map of Liguria
  26. Meander In Violet III
  27. Steamboats on the Mississippi
  28. Vintage Architect's Plan I
  29. Dragonflies, 17th century artwork
  30. Wooded Path II
  31. The End of an Era, King of the Bare-Knuckle Boxers, 1973
  32. Neanderthals hunt a cave bear
  33. Triceratops
  34. Vintage Line Iris II
  35. Clove
  36. Stem Contour V
  37. Famous places and monuments of the world
  38. Hand Signs I
  39. Illustration from 'Pride and Prejudice' by Jane Austen
  40. Ballina, County Mayo, from 'Scenery and Antiquities of Ireland'
  41. Early electric train
  42. Romeo
  43. Charcoal & Linen Shells VII
  44. A View Of 110th Street In New York City, 1906
  45. Equation
  46. Human nervous system from behind, artwork
  47. Charcoal & Linen Shells I
  48. Peregrine Falcon