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  1. Antique Map of Belgium and the Netherlands, 1611
  2. Antique Map of Colorado, 1894
  3. Antique Map of Philadelphia, 1797
  4. Antique Map of Philadelphia, 1875
  5. 4p electron orbitals
  6. 5s electron orbital
  7. Anaerobiospirillum thomasii flagella, TEM
  8. Anthrax bacteria
  9. Artemisinin malaria drug molecules
  10. Bacteria infecting a macrophage, SEM
  11. Bacteria infecting a macrophage, SEM
  12. Bacteria infecting a macrophage, SEM
  13. Bacteria infecting a macrophage, SEM
  14. Bouncing ball
  15. Calabrian pine (Pinus brutia)
  16. Carbon nanotube
  17. Classical mechanics
  18. Co-enzyme NAD (nicotinamide) crystals
  19. Coiled lily leaf, SEM
  20. Crystals of magnesium sulphate
  21. Decoherence in quantum computing
  22. Desert dodder (Cuscuta denticulata)
  23. Di(2-ethylhexyl) phthalate
  24. Diamond structure
  25. Dilute hydrochloric acid reactions
  26. Dragon tail fractal
  27. E. coli bacteria, SEM
  28. E. coli bacteria, SEM
  29. The Cathedral of Seville
  30. The Bather, called 'Baigneuse Valpincon', 1808
  31. Electron flow
  32. Epipihytic bromeliad (Vriesa elata)
  33. Escherichia coli bacteria, SEM
  34. Fehling's test for sugars
  35. Female hormone
  36. Flag irises (Iris missouriensis)
  37. Suprematist Composition, 1915
  38. Grass stem, SEM
  39. Guitar string vibrating
  40. Helicobacter pylori bacteria, SEM
  41. Helicobacter pylori bacterium, TEM
  42. Herceptin breast cancer drug molecule
  43. Landscape with Walton Bridges, c.1845
  44. Hydroxide precipitates
  45. Insulin molecule
  46. Sleighs in a Winter Landscape
  47. Still Life of Grapes, Oranges and a Peeled Lemon
  48. Magnetic field