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  1. Santorini eruption, 1866
  2. The Windmill Plane, Autogyro
  3. Bon Voyage I
  4. British Birds and Eggs IV
  5. Bare-knuckle Boxers
  6. Avian Study IV
  7. Kumquat, 1996
  8. Grey phalarope, historical artwork
  9. Lungs
  10. Breed Studies VI
  11. Foot bones and ligaments
  12. Shades of Coral IV
  13. Breed Studies XII
  14. Iris Sketch O'keefe Crop I
  15. Doodle Fish
  16. 19th Century internal combustion engine
  17. Composite image of the phases of the Moon
  18. Elizabethan England, from 'The Art of Perfume', 1912
  19. Simple Songbird Sketches I
  20. Cabeza De Vaca Expedition
  21. The trial for murder of Madeleine Smith
  22. Red Coral I
  23. Armillary sphere, 18th Century artwork
  24. Rough-legged Hawk
  25. Detail of 16th century map of Liguria
  26. Snap!
  27. Vintage Architect's Plan I
  28. Dragonflies, 17th century artwork
  29. Steamboats on the Mississippi
  30. Meander In Violet III
  31. Wooded Path II
  32. Vintage Line Clematis
  33. Neanderthals hunt a cave bear
  34. Triceratops
  35. The End of an Era, King of the Bare-Knuckle Boxers, 1973
  36. Clove
  37. Stem Contour V
  38. Famous places and monuments of the world
  39. Dragonfly
  40. Illustration from 'Pride and Prejudice' by Jane Austen
  41. Hand Signs I
  42. Ballina, County Mayo, from 'Scenery and Antiquities of Ireland'
  43. Early electric train
  44. Romeo
  45. Human nervous system from behind, artwork
  46. Charcoal & Linen Shells VII
  47. Seaside Village
  48. Equation