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  1. Water purity test
  2. Human body and digestive system, perspective view
  3. Earth at time of Pangea
  4. A Relative II
  5. Human skull
  6. TEM of Bordetella pertussis bacteria
  7. Ratcliffe Power Station
  8. Limescale, SEM
  9. Woven fabric fibres, SEM
  10. Transition Element Salts In Solution
  11. Earth's atmosphere and solar radiation
  12. Diagram illustrating muscle groups on back of human legs
  13. Cluster of DNA strands
  14. Banded sandstone rock
  15. Historical medicinal products
  16. Vegetation Profile Of A Boreal Forest
  17. Gallstone
  18. Water wheel
  19. Cardiovascular scan
  20. Frogs and their Eggs
  21. 1835 Maneless Indian Lion by Edward Lear
  22. Perpetual motion machine, 19th century
  23. Rituximab drug molecule
  24. Dental equipment
  25. Musculature and mucosa of the small intestines
  26. Dinosaur Skeleton, 1921
  27. Galileo thermometer
  28. Art of pulmonary tuberculosis with lung cavities
  29. Rock formation and erosion cycle
  30. Velociraptor
  31. Penicillin magnified 600x
  32. Rising Air Under Stable Conditions
  33. Langley's sunspot observation, 1873
  34. Conceptual image of influenza causing flu
  35. Marsupials
  36. Ganges River Delta - USGS Earth as Art
  37. Muscles of the foot
  38. Lake Disappointment - USGS Earth as Art
  39. Ceratosaurus
  40. Microscopic view of chromosome
  41. Scanning electron micrograph of just-divided HeLa cells
  42. Ichthyosaurus and Pleisiosaurus, artwork
  43. Body Plans of Extinct Reptiles
  44. Pharynx sagittal section
  45. Artwork of tooth showing periodontal disease
  46. Spinal cord anatomy, 1844 artwork
  47. Intestinal microvilli, SEM
  48. Breast cancer cell, SEM