Dr. Melvin H. Knisely using a quartz rod to conduct light into a frog's organs as he observes circulatory blood through a microscope.


  • Date: 1948-12
  • Location: US
  • Physical Dimensions: B/W PRINT
  • Subject Keywords: Melvin H. Knisely, Men, Scientific Types, Physiology, Blood, 1940s
  • Publisher: TimeLife
  • Usage: For personal non-commercial use only
  • Provider: LIFE
  • Photographer: Fritz Goro
  • Original ID: TimeLife_image_522655
  • Credits: LIFE
  • Copyright: © Time Inc.

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