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  1. Black & White Barn Study I
  2. Boho Winter Polar bear
  3. Red Knot, or Red-breasted Sandpiper
  4. Black & White Barn Study II
  5. Artwork of the pterosaur, Pteranodon sp
  6. Foliage on Navy II
  7. Water Guardians
  8. Marbled Godwit
  9. Fruit Stand I
  10. Swallow-tailed Kite
  11. Messerschmitt ME109 blueprint
  12. Puppy Nap I
  13. Weeping Tree
  14. Charcoal Paws I
  15. Mountain Sketch I
  16. Artwork showing Chicxulub impact crater, Yucatan
  17. Nicolaus Copernicus, Polish astronomer
  18. Robin, from The Farnley Book of Birds, c.1816
  19. Illustrations Magazine Plate
  20. Plane Blueprint IV Wings
  21. Times Square
  22. 1918
  23. Illustration showing the various parts that make up the sun
  24. The Sinking of the Laconia in 1942
  25. Hopeful Spring
  26. Mallard Duck
  27. Boho Animal Indians
  28. Dental anatomy
  29. Egyptian and Assyrian counting systems
  30. Egyptian creation myth
  31. Architectural Elevation I
  32. Sea Serpents
  33. Small-Mouthed Black Bass
  34. Country House Sketch
  35. Artichokes, 2005
  36. Inquiry in the Loss of the Titanic: Cross sections of the ship
  37. 1832 Darwin's ship HMS Beagle plan
  38. Ruins of Brunnenburg
  39. Architectural Elevation III
  40. Beautiful Butterfly III
  41. Red-Throated Diver
  42. Architectural Elevation II
  43. High Plains I
  44. Audubon: Wigeon
  45. American red fox
  46. Baldfaced Bulldogger
  47. The Fashion for Lacquer, 1920
  48. Morris Pheasants II