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  1. Following Mum and Dad
  2. Serenity
  3. Rice Weevil Head, SEM
  4. Foggy Morning, Lake Ullswater
  5. Australia, Victoria, Melbourne, Princes Bridge on the Yarra River, with the city skyline
  6. Dawn Whispers
  7. 15th century surgical equipment, artwork
  8. Winters light
  9. The Three Brothers Above The Merced River In Winter, Yosemite National Park, California
  10. Barbara McClintock, US cell geneticist
  11. Cruising
  12. Ginkgo II
  13. Focusing On Spring
  14. Branching Outwards
  15. Concentrating sunlight, 17th century
  16. Armillary sphere, 18th Century artwork
  17. Heart and lung anatomy, 17th century
  18. Wooden Church Of Intercession, Pokrovskaya Church, Near Saint Petersburg, Russia
  19. Geometric Rhythm
  20. Australia, Cervantes, Nambung National Park, Limestone pillars in the Pinnacles Desert
  21. Rain Drops
  22. Geoheliocentric cosmology, 16th century
  23. Fuji Seen from Kanaya on the Tokaido, from the series Thirty-six Views of Mount Fuji
  24. Row, Row, Row your boat
  25. Ruins Of Rievaulx Abbey, North Yorkshire, England
  26. Rising Beyond The Buttercups
  27. Lamentation Over the Dead Christ, Renaissance drawing by Giovanni Bellini, 1500
  28. Kenya, Samburu girl dressed in her traditional beaded necklaces and headress at a dance
  29. Australia, Leeuwin-Naturaliste National Park, Boranup, Boranup Karri tree Forest
  30. 19th Century internal combustion engine
  31. City ambulance, 19th century
  32. Blowing in the Wind
  33. Lifting fog
  34. Psychedelic Floor
  35. Emblems from Philosophia reformata
  36. Witness of the sign
  37. Marshland Secrets
  38. Brain anatomy, 16th century diagram
  39. First signs of summer
  40. Dmitri Mendeleev, Caricature
  41. Human skeleton
  42. A Buddhist spins his hand-held prayer wheel
  43. Bellis and Morcom steam engine
  44. High-pressure steam engine, 19th century
  45. Australia, Queensland, dancers performing at the Laura Aboriginal Dance Festival
  46. Telephone switchboard operator, 1914
  47. Losh and Stephenson's carriage
  48. Wild Horses