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  1. Neutral Iris Sketch I
  2. The Windmill Plane, Autogyro
  3. Bon Voyage I
  4. British Birds and Eggs IV
  5. Avian Study IV
  6. Grey phalarope, historical artwork
  7. Bare-knuckle Boxers
  8. Kumquat, 1996
  9. Lungs
  10. Breed Studies VI
  11. Foot bones and ligaments
  12. Shades of Coral IV
  13. Iris Sketch O'keefe Crop I
  14. Breed Studies XII
  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. Rough-legged Hawk
  23. Red Coral I
  24. Armillary sphere, 18th Century artwork
  25. Snap!
  26. Vintage Architect's Plan I
  27. Dragonflies, 17th century artwork
  28. Steamboats on the Mississippi
  29. Detail of 16th century map of Liguria
  30. Vintage Line Clematis
  31. Meander In Violet III
  32. Wooded Path II
  33. Neanderthals hunt a cave bear
  34. The End of an Era, King of the Bare-Knuckle Boxers, 1973
  35. Triceratops
  36. Clove
  37. Stem Contour V
  38. Famous places and monuments of the world
  39. Illustration from 'Pride and Prejudice' by Jane Austen
  40. Dragonfly
  41. Hand Signs I
  42. Early electric train
  43. Ballina, County Mayo, from 'Scenery and Antiquities of Ireland'
  44. Romeo
  45. Seaside Village
  46. Equation
  47. Human nervous system from behind, artwork
  48. A View Of 110th Street In New York City, 1906