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  1. Medical equipment on a tray
  2. Study of the Human Figure, Lateral View
  3. Femur - anterior view. skeletal system
  4. Galloway steam boiler
  5. Artwork of a Maiasaura dinosaur
  6. Glutamic acid crystals, light micrograph
  7. Healthy adult hand, X-ray
  8. Lung blood vessels
  9. Blue Watercolor Agate Rectangle
  10. 1858 Prehistoric marine reptiles
  11. Malachite
  12. Gem Stones I
  13. No Man's Land - USGS Earth as Art
  14. Nurse collecting water, USA, 1918
  15. Growth rings of a scots pine tree
  16. Cell
  17. Heart attack, artwork
  18. Human brain anatomy, lateral view
  19. Chrysocolla
  20. Laika the space dog postcard
  21. Mammals of the Pleistocene era
  22. Teach on Mars and its Moons
  23. Gem Stones III
  24. Mathematical Elements II
  25. Male urinary bladder and urethra. urinary system
  26. Mitochondrion, TEM
  27. group portrait of the great American inventors of the Victorian Age, 1862
  28. Rosicrucian mystical symbol
  29. 1731 Johann Scheuchzer Creation 4th day b
  30. Shattuckite Jasper
  31. Salmonella bacteria, SEM
  32. Pregnancy
  33. Ocean Jasper
  34. Diatom assortment, SEMs
  35. Oil well pump jacks at Bakken Oil Field near Estevan, Saskatchewan, Canada
  36. Surgical Instruments
  37. Cardiac muscle and capillary, TEM
  38. Vintage Advertisement For Renne's Pain Killing Magic Oil, With Decorative Border
  39. Optical pattern
  40. Arkansas - USGS State Mosaic
  41. Mistletoe - Botanical Illustration
  42. A rabbit witnesses a herd of mammoths in a snowy forest
  43. Solar System II
  44. 1731 Johann Scheuchzer planet orbit
  45. Pulmonary veins and arteries. circulation, cardiovascular system
  46. Bright Periodic Table - White, Classic Text
  47. Molecule Milk
  48. Robot arm spot-welding a car suspension unit