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  1. Early astronomical spectroscopy
  2. Tropical Series II
  3. Meander In Violet III
  4. Early radiography experiment
  5. Tricolored Blackbird, Yellow-headed Blackbird, and Bullock's Oriole
  6. Hughes' printing telegraph
  7. Art of section through human eye showing glaucoma
  8. Stem cell research
  9. Knorr Shells VI
  10. Goldfish III
  11. Neck and facial nerves
  12. Cell structure
  13. Livery Stable, Carson City
  14. Gregor Mendel, Austrian botanist
  15. Cut-away artwork of a windmill for grinding corn
  16. Heart anatomy, 19th Century illustration
  17. Gene therapy: model of DNA inside a drug
  18. Descubes Botanical Grass IV
  19. Lamps connected in series
  20. Neutral Iris Sketch II
  21. Mechanics of swallowing, diagram
  22. Pumping engines, 19th century
  23. Artichoke Sketch
  24. Ale Tap 1893
  25. The Old Barn
  26. Nettle groundbug
  27. Fern Foliage III
  28. 'Sense And Sensibility' By Jane Austen
  29. A View Of 110th Street In New York City, 1906
  30. Guinea Fowl, from The Farnley Book of Birds, c.1816
  31. Subway Sphinxes, 2013
  32. Geography of the Heavens VIII
  33. Novogratz Values - Courage
  34. Mid Century - Tree - Elm
  35. City Sketches II
  36. Illustration of a 32 day old human embryo
  37. One Line New York
  38. Artist's concept of a supernova explosion
  39. Cephalopd eye, artwork
  40. Cat Nap II
  41. Horticultural Specimen II
  42. Hippopotamus
  43. Ferns on Sage VIII
  44. Illustration from 'Pride and Prejudice' by Jane Austen
  45. Nuclear fusion reactions
  46. Chimney-sweep Christmas II, 2001
  47. Allosaurus
  48. White-eyed Vireo