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  1. ECGs of a normal heart rate, artwork
  2. Earth's atmosphere and solar radiation
  3. Drawing of an armillary sphere
  4. Donati's Comet of 1858, artwork
  5. DNA nucleotides, artwork
  6. DNA nucleotides, artwork
  7. Digestive system, artwork
  8. Diamond-tipped drill, 19th century
  9. Darwin's Galapagos Finches
  10. Darwin's Beagle Voyage Map South America
  11. Conybeare Plesiosaurus reconstruction
  12. Container for the Philosophers' Stone
  13. Container for the Philosophers' Stone
  14. Construction of the Pyramids
  15. Circulatory system, 17th century
  16. Chinese armada, artwork
  17. Charles Darwin, British naturalist
  18. Carbon cycle, artwork
  19. Blastocyst implantation, diagram
  20. Artificial heart, 19th century
  21. Armillary sphere, 18th Century artwork
  22. 19th Century internal combustion engine
  23. 19th Century internal combustion engine
  24. 19th Century furnace for gas lighting
  25. 19th Century amphibious vehicle, artwork
  26. 1886 French copy Haeckel 'tree of life'
  27. 1874 Charles Darwin picture by Leonard
  28. 1833 Jardine Papio sylvanus baboon
  29. 17th Century fire fighting, artwork
  30. Breast anatomy, artwork
  31. Breadfruit, 18th century plate
  32. Brain anatomy, diagram
  33. Boron, atomic model
  34. Bee anatomy, artwork
  35. Axon anatomy, diagram
  36. Aurora borealis, 1872
  37. Atlantis, artwork
  38. Arachnid anatomy, artwork
  39. Apothecary, satirical artwork
  40. Antibody, artwork
  41. Antibiotic mechanism of action, artwork
  42. Alchemical tree, Philosophia reformata
  43. 19th Century electrical equipment
  44. 19th Century Electric Telegraph Equipment
  45. 1858 Prehistoric marine reptiles
  46. 1839 Darwin's Falkland Island Fox Extinct
  47. 1835 Maneless Indian Lion by Edward Lear
  48. 1832 Darwin's ship HMS Beagle plan