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NOAA Photo Library Image - ship4022

Figure 19. Color measuring tube of Julien Thoulet, designed about 1903 to facilitate the use of Forel's color scale. It was only a little more practical than the original form.

Image ID: ship4022, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: P. Roggero
Credit: Oceanographic Museum of Monaco

Category: Oceanography/Historical instruments/

High Resolution Photo Available





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Last Updated:
May 12, 2014